MusYW/test_sciq · Datasets at Hugging Face

id int64 0 999	question stringlengths 17 246	choices listlengths 4 4	answer stringclasses 4 values
200	Connecting a magnesium rod to an underground steel pipeline protects the pipeline from corrosion. because magnesium (e° = −2.37 v) is much more easily oxidized than iron (e° = −0.45 v), the mg rod acts as the anode in a what?	[ "galvanic cell", "voltaic cell", "anode cell", "stimulation cell" ]	A
201	Matrix is the term for the fluid-filled interior of what structure, where most of the cell’s atp is made?	[ "Golgi apparatus", "nucleus", "mitochondria", "enzyme" ]	C
202	Chitin, also found in the exoskeleton of insects, gives structural strength to the cell walls of fungi. the cell wall protects the cell from what?	[ "starvation and predators", "entrainment and predators", "fermentation and predators", "desiccation and predators" ]	D
203	What is the term for air moving over earth’s surface?	[ "tidal", "humidity", "spin cycle", "wind" ]	D
204	Each of what paired organs is enclosed within a cavity surrounded by the pleura?	[ "heart", "lungs", "bones", "ovaries" ]	B
205	What are the best-known extinct vertebrates?	[ "dinosaurs", "snakes", "trees", "trilobites" ]	A
206	Centrioles help organize the chromosomes before cell division so that each daughter cell has the correct number of what?	[ "ribosomes", "cells", "chromosomes", "receptors" ]	C
207	What development is less risky for the mother?	[ "marsupial", "gastrointestinal", "atypical", "mutation" ]	A
208	What does the term decay in chemistry refer to with regards to atoms?	[ "pressures in nuclei", "destruction of nuclei", "separation of nuclei", "changes in nuclei" ]	D
209	How does increasing the temperature of reactants affect the rate of their reaction?	[ "it decreases it", "it increases it", "it patterns it", "it is unchanged" ]	B
210	What type of eclipse happens when a full moon moves through earth's shadow?	[ "cycle", "planetary", "solar", "lunar" ]	D
211	Dynamite is an example of what type of potential energy?	[ "carbon", "chemical", "thermal", "mineral" ]	B
212	All the atoms of a given element have the same number what?	[ "protons and electrons", "neutrons and electrons", "neutrons and protons", "cells and electrons" ]	A
213	What structures located on chromosomes control characteristics of life and are passed from parents to offspring?	[ "axons", "cells", "genes", "eggs" ]	C
214	The lattice energy is usually the most important energy factor in determining the stability of what?	[ "ionic compound", "harmonic compound", "saline compound", "magnetic compound" ]	A
215	What kind of organisms helps hold soil in place to slow erosion?	[ "plants", "flowers", "animals", "bacteria" ]	A
216	Water found on the surface of the earth is referred to as what?	[ "runoff", "reservoir water", "surface water", "groundwater" ]	C
217	Which planet is named after the roman goddess of love?	[ "Mercury", "venus", "Jupiter", "Neptune" ]	B
218	In astronomy, what are so dense that not even light can escape their gravity?	[ "dwarf stars", "red holes", "black holes", "black rods" ]	C
219	What are the simplest organic compounds?	[ "proteins", "carbohydrates", "hydrocarbons", "enzymes" ]	C
220	Animals are classified according to morphological and developmental characteristics, such as a body plan. with the exception of sponges, the animal body plan is symmetrical. this means that their distribution of body parts is balanced along this?	[ "axis", "radius", "skull", "ulna" ]	A
221	Competition that occurs between members of the same species, which improves the species’ adaptations, is called what?	[ "commensalism", "intraspecific competition", "interspecies competition", "adaptive behavior" ]	B
222	When we were dealing with electrical effects, it was very useful to speak of an electric field that surrounded what?	[ "electrical charge", "liquid charge", "sunlight charge", "stellar charge" ]	A
223	Plants require air, water, nutrients, and what in order to live and survive?	[ "light", "entertainment", "gravity", "money" ]	A
224	Exothermic reactions, like all chemical reactions, require what to get started?	[ "specific energy", "activation energy", "surface energy", "membrane energy" ]	B
225	What broad group of animals are the first true tetrapods, vertebrates with four limbs?	[ "fish", "mammals", "amphibians", "reptiles" ]	C
226	In most fungi, the haploid nuclei contributed by each parent do not do what right away?	[ "filter", "vaporize", "disperse", "fuse" ]	D
227	What is telomere shortening associated with?	[ "reducing", "aging", "sleeping", "changing" ]	B
228	What gas is released when dead organisms and other organic materials decompose?	[ "carbon monoxide", "hydrogen peroxide", "nitrous oxide", "carbon dioxide" ]	D
229	What type of lens is thicker at the edges than it is in the middle?	[ "surface lens", "convex lens", "glass lens", "concave lens" ]	D
230	A collapsing nebula leads to what process?	[ "nuclear fusion", "destructive fusion", "chemical reaction", "nuclear reaction" ]	A
231	Lenses that focus light are called what?	[ "active lenses", "powering lenses", "sensing lenses", "converging lenses" ]	D
232	What happens to the pressure when more gas is added to a rigid container?	[ "increases", "occurs", "Higher", "changes" ]	A
233	Often represented by an arrow, a vector is a measurement that has both size and what?	[ "pressure", "direction", "reason", "location" ]	B
234	A solenoid wrapped around a bar of iron or other ferromagnetic material forms what?	[ "impoundment", "compass", "electromagnet", "compress" ]	C
235	Enzymes can catalyze up to several million reactions per what?	[ "minute", "second", "hour", "day" ]	B
236	Unipolar, bipolar, multipolar, and pseudounipolar are the four basic types of what?	[ "protons", "electrons", "neurons", "ions" ]	C
237	How many families are known quarks divided into?	[ "three", "five", "four", "two" ]	A
238	The nervous system has two main parts, called the central nervous system and the what?	[ "peripheral nervous system", "functional nervious system", "useful nervous system", "obsolete nervous system" ]	A
239	What makes up the dense outer layer of bones?	[ "ligaments", "plasma", "compact bone", "adipose tissue" ]	C
240	What type of behaviors are rigid and predictable, and usually involve basic life functions?	[ "protective behaviors", "diverse behaviors", "impulsive behaviors", "innate behaviors" ]	D
241	Yeasts, molds, and mushrooms are all different kinds of what?	[ "pollen", "fungi", "fossil", "bacteria" ]	B
242	What is the term for the preserved remains or traces of organisms that lived in the past?	[ "detritis", "fossils", "bones", "corals" ]	B
243	What process, which is analogous to mitosis, is a series of events that arrange and separate chromosomes and chromatids into daughter cells?	[ "meiosis", "inhibition", "apoptosis", "digestion" ]	A
244	All of the elements in group 9 have nine of which electrons?	[ "valence", "gradient", "ionic", "shell" ]	A
245	The force of attraction between a positively charged metal ion and the valence electrons it shares with other ions of the metal is called?	[ "metallic bond", "ionic bond", "metallic yield", "temporal bond" ]	A
246	When a car is brought to a stop by friction on level ground, it loses what?	[ "exhibit energy", "residual energy", "mass energy", "kinetic energy" ]	D
247	What system of the body is responsible for transmitting, processing, and responding to most of the sensory information that is created by various stimuli?	[ "respiratory system", "circulatory system", "attentive system", "nervous system" ]	D
248	Do vascular or nonvascular plants lack tracheids?	[ "nonvascular", "both do", "vascular", "neither do" ]	A
249	When the earth is between the moon and the sun, what type of moon shows?	[ "waning moon", "half moon", "crescent moon", "a full moon" ]	D
250	The stored chemical energy of trees and other plants is called what?	[ "biomass energy", "byproduct energy", "biocomposte energy", "decomposition energy" ]	A
251	What is the star nearest the earth named?	[ "apollinaris centauri", "alpha centauri", "andromeda centauri", "proxima centauri" ]	D
252	What are the majority of solution properties dependent upon?	[ "gas state of solute", "chemical state of solute", "similar state of solute", "acid state of solute" ]	B
253	What must be combined with a halogen to give it a positive oxidation number?	[ "carbon", "nitrogen", "oxygen", "calcium" ]	C
254	Hormones are often regulated through what?	[ "alternating loops", "feedback loops", "response loops", "intensity loops" ]	B
255	Surging hormones will cause adolescents to have what?	[ "bulging muscles", "mood swings", "growth spurts", "blackouts" ]	B
256	What is the term for the force that a magnet exerts on certain materials?	[ "magnetic force", "potential force", "positive force", "gravitational force" ]	A
257	What cells does the skeletal system make?	[ "brain cells", "Dendritic cells", "blood cells", "Osteoclast" ]	C
258	When a stream or river slows down, it starts dropping its what?	[ "sediments", "fragments", "organisms", "pollutants" ]	A
259	What process, which is in many ways the opposite of photosynthesis, shows the interdependence of producers and consumers?	[ "cellular respiration", "decomposition", "osmosis", "primarily respiration" ]	A
260	Which membranous organelles in a cell sequence enzyme and electron molecules for efficient cellular respiration?	[ "bacterial", "protons", "mitochondria", "glucose" ]	C
261	In a plant, the flower contains what?	[ "bees and blossoms", "bud and stem", "pollen and eggs", "seed and leaves" ]	C
262	What forms when one substances dissolves in another?	[ "concentrate", "a transition", "a solution", "complex" ]	C
263	What are thought to have evolved at least 200 million years ago from gymnosperms like gnetae?	[ "cone-bearing plants", "yeasts", "deciduous trees", "flowering plants" ]	D
264	The chemical and/or physical agents that cause mutations are called what?	[ "organelles", "dioxins", "mutagens", "genes" ]	C
265	What is the force that opposes motion between two surfaces that are touching?	[ "vibration", "friction", "tension", "gravity" ]	B
266	Skeletal, cardiac, and smooth are all types of what?	[ "Nervous", "Connective", "muscle", "Epithelial" ]	C
267	The speed of a wave through connected harmonic oscillators depends on the distance between them, the spring constant, and the what?	[ "temperature", "mass", "concentrations", "density" ]	B
268	Traits may also be controlled by multiple alleles or multiple what?	[ "chromosomes", "lesions", "genes", "eggs" ]	C
269	How many atoms does water contain?	[ "6", "9", "4", "3" ]	D
270	What is the only light that people can see?	[ "visible light", "infrared light", "spectrum light", "UV light" ]	A
271	What is the name of the system that consists of a hierarchy of taxa, from the kingdom to the species?	[ "Bohr's law", "Mendelian system", "linnaean system", "zoology" ]	C
272	If the dna from all 46 chromosomes in a human cell nucleus was laid out end to end, it would measure approximately how long?	[ "four meters", "two meters", "three meters", "one meter" ]	B
273	What is a mixture of a solute in a solvent called?	[ "transition", "link", "structure", "solution" ]	D
274	Silver is an example of a mineral containing only one kind of what?	[ "mass", "chemical", "matter", "element" ]	D
275	What particles ancient greeks propose that matter consists of ?	[ "molecules", "ether", "atoms", "ions" ]	C
276	Repolarization occurs when the membrane potential begins to move back toward its resting what?	[ "tension", "charge", "voltage", "resistance" ]	C
277	Mollusks have a true coelom and a complete what?	[ "tissues system", "skeletal system", "nerve system", "digestive system" ]	D
278	Which organelles, made of protein and ribosomal rna, build cellular proteins in the cytoplasm?	[ "chromosomes", "chloroplasts", "dna", "ribosomes" ]	D
279	What type of matter makes up most of the universe?	[ "liquid", "gas", "plasma", "carbon" ]	C
280	Most mammals are viviparous, which refers to what reproductive result?	[ "laying eggs", "live birth", "spawning", "identical twins" ]	B
281	Proteins are polymers of what kind of acids?	[ "lactic", "acetic", "lipids", "amino" ]	D
282	What is the official name for the study of life?	[ "botany", "geology", "chemistry", "biology" ]	D
283	What does an invertebrate, like a snail, not have?	[ "a heart", "eyes", "reproductive organs", "backbone" ]	D
284	What is the dinosaur genus that's closest to modern birds?	[ "diplodocus", "sauropods", "Rapter", "deinonychus" ]	D
285	In what type of organisms are daughter cells individuals?	[ "multicellular organisms", "hematopoietic organisms", "unicellular organisms", "macroscopic organisms" ]	C
286	What group was long considered part of the plant kingdom because of obvious similarities; both are immobile, have cell walls, and grow in soil?	[ "fungi", "bacteria", "mosses", "coral" ]	A
287	What type of waves transmit the energy of an earthquake?	[ "tectonic waves", "sonic waves", "volcanic waves", "seismic waves" ]	D
288	In our bodies, the chest cavity is a clear example of a system at what?	[ "scale", "default", "rest", "resonance" ]	D
289	How do prokaryotic cells divide?	[ "Fusion", "binary fission", "function fission", "multiple fission" ]	B
290	What is the term for a series of biochemical reactions by which an organism converts a given reactant to a specific end product?	[ "internal pathway", "metabolic pathway", "direct pathway", "hydrogen pathway" ]	B
291	Exemplified by sea stars and sand dollars, echinoderms have a calcareous structure developed by pigment cells and made of ossicles, which is called what?	[ "thorax", "hydrostatic skeleton", "endoskeleton", "exoskeleton" ]	C
292	What phase does the nuclear envelope begin to break down?	[ "interphase", "pasiphaë i", "nitrogenase i", "prophase i" ]	D
293	What are formed when cells from the male and female parts of the plant combine?	[ "trees", "varieties", "atoms.", "seeds" ]	D
294	What is another name for anther pollen sacs?	[ "microsporangia", "Gametangia", "Megasporangia", "ganglia" ]	A
295	What is released to lubricate the vagina to facilitate intercourse?	[ "blood", "vaginal secretions", "semen", "urine" ]	B
296	Cnidarians are an example of organisms that possess a simple type of what system, used for sensing touch?	[ "lymphatic system", "circulatory system", "bacterial system", "nervous system" ]	D
297	What can we learn about a wave by finding the product of the wavelength and frequency?	[ "type", "decibels", "speed", "volume" ]	C
298	Where are liverworts most often found?	[ "along stream beds", "in the ocean", "on mountains", "in deserts" ]	A
299	What does a continuous string of earthquakes indicate about a volcano?	[ "it is cooling down", "extinction is close", "eruption is close", "it is heating up" ]	C

200

Connecting a magnesium rod to an underground steel pipeline protects the pipeline from corrosion. because magnesium (e° = −2.37 v) is much more easily oxidized than iron (e° = −0.45 v), the mg rod acts as the anode in a what?

[ "galvanic cell", "voltaic cell", "anode cell", "stimulation cell" ]

A

201

Matrix is the term for the fluid-filled interior of what structure, where most of the cell’s atp is made?

[ "Golgi apparatus", "nucleus", "mitochondria", "enzyme" ]

C

202

Chitin, also found in the exoskeleton of insects, gives structural strength to the cell walls of fungi. the cell wall protects the cell from what?

[ "starvation and predators", "entrainment and predators", "fermentation and predators", "desiccation and predators" ]

D

203

What is the term for air moving over earth’s surface?

[ "tidal", "humidity", "spin cycle", "wind" ]

D

204

Each of what paired organs is enclosed within a cavity surrounded by the pleura?

[ "heart", "lungs", "bones", "ovaries" ]

B

205

What are the best-known extinct vertebrates?

[ "dinosaurs", "snakes", "trees", "trilobites" ]

A

206

Centrioles help organize the chromosomes before cell division so that each daughter cell has the correct number of what?

[ "ribosomes", "cells", "chromosomes", "receptors" ]

C

207

What development is less risky for the mother?

[ "marsupial", "gastrointestinal", "atypical", "mutation" ]

A

208

What does the term decay in chemistry refer to with regards to atoms?

[ "pressures in nuclei", "destruction of nuclei", "separation of nuclei", "changes in nuclei" ]

D

209

How does increasing the temperature of reactants affect the rate of their reaction?

[ "it decreases it", "it increases it", "it patterns it", "it is unchanged" ]

B

210

What type of eclipse happens when a full moon moves through earth's shadow?

[ "cycle", "planetary", "solar", "lunar" ]

D

211

Dynamite is an example of what type of potential energy?

[ "carbon", "chemical", "thermal", "mineral" ]

B

212

All the atoms of a given element have the same number what?

[ "protons and electrons", "neutrons and electrons", "neutrons and protons", "cells and electrons" ]

A

213

What structures located on chromosomes control characteristics of life and are passed from parents to offspring?

[ "axons", "cells", "genes", "eggs" ]

C

214

The lattice energy is usually the most important energy factor in determining the stability of what?

[ "ionic compound", "harmonic compound", "saline compound", "magnetic compound" ]

A

215

What kind of organisms helps hold soil in place to slow erosion?

[ "plants", "flowers", "animals", "bacteria" ]

A

216

Water found on the surface of the earth is referred to as what?

[ "runoff", "reservoir water", "surface water", "groundwater" ]

C

217

Which planet is named after the roman goddess of love?

[ "Mercury", "venus", "Jupiter", "Neptune" ]

B

218

In astronomy, what are so dense that not even light can escape their gravity?

[ "dwarf stars", "red holes", "black holes", "black rods" ]

C

219

What are the simplest organic compounds?

[ "proteins", "carbohydrates", "hydrocarbons", "enzymes" ]

C

220

Animals are classified according to morphological and developmental characteristics, such as a body plan. with the exception of sponges, the animal body plan is symmetrical. this means that their distribution of body parts is balanced along this?

[ "axis", "radius", "skull", "ulna" ]

A

221

Competition that occurs between members of the same species, which improves the species’ adaptations, is called what?

[ "commensalism", "intraspecific competition", "interspecies competition", "adaptive behavior" ]

B

222

When we were dealing with electrical effects, it was very useful to speak of an electric field that surrounded what?

[ "electrical charge", "liquid charge", "sunlight charge", "stellar charge" ]

A

223

Plants require air, water, nutrients, and what in order to live and survive?

[ "light", "entertainment", "gravity", "money" ]

A

224

Exothermic reactions, like all chemical reactions, require what to get started?

[ "specific energy", "activation energy", "surface energy", "membrane energy" ]

B

225

What broad group of animals are the first true tetrapods, vertebrates with four limbs?

[ "fish", "mammals", "amphibians", "reptiles" ]

C

226

In most fungi, the haploid nuclei contributed by each parent do not do what right away?

[ "filter", "vaporize", "disperse", "fuse" ]

D

227

What is telomere shortening associated with?

[ "reducing", "aging", "sleeping", "changing" ]

B

228

What gas is released when dead organisms and other organic materials decompose?

[ "carbon monoxide", "hydrogen peroxide", "nitrous oxide", "carbon dioxide" ]

D

229

What type of lens is thicker at the edges than it is in the middle?

[ "surface lens", "convex lens", "glass lens", "concave lens" ]

D

230

A collapsing nebula leads to what process?

[ "nuclear fusion", "destructive fusion", "chemical reaction", "nuclear reaction" ]

A

231

Lenses that focus light are called what?

[ "active lenses", "powering lenses", "sensing lenses", "converging lenses" ]

D

232

What happens to the pressure when more gas is added to a rigid container?

[ "increases", "occurs", "Higher", "changes" ]

A

233

Often represented by an arrow, a vector is a measurement that has both size and what?

[ "pressure", "direction", "reason", "location" ]

B

234

A solenoid wrapped around a bar of iron or other ferromagnetic material forms what?

[ "impoundment", "compass", "electromagnet", "compress" ]

C

235

Enzymes can catalyze up to several million reactions per what?

[ "minute", "second", "hour", "day" ]

B

236

Unipolar, bipolar, multipolar, and pseudounipolar are the four basic types of what?

[ "protons", "electrons", "neurons", "ions" ]

C

237

How many families are known quarks divided into?

[ "three", "five", "four", "two" ]

A

238

The nervous system has two main parts, called the central nervous system and the what?

[ "peripheral nervous system", "functional nervious system", "useful nervous system", "obsolete nervous system" ]

A

239

What makes up the dense outer layer of bones?

[ "ligaments", "plasma", "compact bone", "adipose tissue" ]

C

240

What type of behaviors are rigid and predictable, and usually involve basic life functions?

[ "protective behaviors", "diverse behaviors", "impulsive behaviors", "innate behaviors" ]

D

241

Yeasts, molds, and mushrooms are all different kinds of what?

[ "pollen", "fungi", "fossil", "bacteria" ]

B

242

What is the term for the preserved remains or traces of organisms that lived in the past?

[ "detritis", "fossils", "bones", "corals" ]

B

243

What process, which is analogous to mitosis, is a series of events that arrange and separate chromosomes and chromatids into daughter cells?

[ "meiosis", "inhibition", "apoptosis", "digestion" ]

A

244

All of the elements in group 9 have nine of which electrons?

[ "valence", "gradient", "ionic", "shell" ]

A

245

The force of attraction between a positively charged metal ion and the valence electrons it shares with other ions of the metal is called?

[ "metallic bond", "ionic bond", "metallic yield", "temporal bond" ]

A

246

When a car is brought to a stop by friction on level ground, it loses what?

[ "exhibit energy", "residual energy", "mass energy", "kinetic energy" ]

D

247

What system of the body is responsible for transmitting, processing, and responding to most of the sensory information that is created by various stimuli?

[ "respiratory system", "circulatory system", "attentive system", "nervous system" ]

D

248

Do vascular or nonvascular plants lack tracheids?

[ "nonvascular", "both do", "vascular", "neither do" ]

A

249

When the earth is between the moon and the sun, what type of moon shows?

[ "waning moon", "half moon", "crescent moon", "a full moon" ]

D

250

The stored chemical energy of trees and other plants is called what?

[ "biomass energy", "byproduct energy", "biocomposte energy", "decomposition energy" ]

A

251

What is the star nearest the earth named?

[ "apollinaris centauri", "alpha centauri", "andromeda centauri", "proxima centauri" ]

D

252

What are the majority of solution properties dependent upon?

[ "gas state of solute", "chemical state of solute", "similar state of solute", "acid state of solute" ]

B

253

What must be combined with a halogen to give it a positive oxidation number?

[ "carbon", "nitrogen", "oxygen", "calcium" ]

C

254

Hormones are often regulated through what?

[ "alternating loops", "feedback loops", "response loops", "intensity loops" ]

B

255

Surging hormones will cause adolescents to have what?

[ "bulging muscles", "mood swings", "growth spurts", "blackouts" ]

B

256

What is the term for the force that a magnet exerts on certain materials?

[ "magnetic force", "potential force", "positive force", "gravitational force" ]

A

257

What cells does the skeletal system make?

[ "brain cells", "Dendritic cells", "blood cells", "Osteoclast" ]

C

258

When a stream or river slows down, it starts dropping its what?

[ "sediments", "fragments", "organisms", "pollutants" ]

A

259

What process, which is in many ways the opposite of photosynthesis, shows the interdependence of producers and consumers?

[ "cellular respiration", "decomposition", "osmosis", "primarily respiration" ]

A

260

Which membranous organelles in a cell sequence enzyme and electron molecules for efficient cellular respiration?

[ "bacterial", "protons", "mitochondria", "glucose" ]

C

261

In a plant, the flower contains what?

[ "bees and blossoms", "bud and stem", "pollen and eggs", "seed and leaves" ]

C

262

What forms when one substances dissolves in another?

[ "concentrate", "a transition", "a solution", "complex" ]

C

263

What are thought to have evolved at least 200 million years ago from gymnosperms like gnetae?

[ "cone-bearing plants", "yeasts", "deciduous trees", "flowering plants" ]

D

264

The chemical and/or physical agents that cause mutations are called what?

[ "organelles", "dioxins", "mutagens", "genes" ]

C

265

What is the force that opposes motion between two surfaces that are touching?

[ "vibration", "friction", "tension", "gravity" ]

B

266

Skeletal, cardiac, and smooth are all types of what?

[ "Nervous", "Connective", "muscle", "Epithelial" ]

C

267

The speed of a wave through connected harmonic oscillators depends on the distance between them, the spring constant, and the what?

[ "temperature", "mass", "concentrations", "density" ]

B

268

Traits may also be controlled by multiple alleles or multiple what?

[ "chromosomes", "lesions", "genes", "eggs" ]

C

269

How many atoms does water contain?

[ "6", "9", "4", "3" ]

D

270

What is the only light that people can see?

[ "visible light", "infrared light", "spectrum light", "UV light" ]

A

271

What is the name of the system that consists of a hierarchy of taxa, from the kingdom to the species?

[ "Bohr's law", "Mendelian system", "linnaean system", "zoology" ]

C

272

If the dna from all 46 chromosomes in a human cell nucleus was laid out end to end, it would measure approximately how long?

[ "four meters", "two meters", "three meters", "one meter" ]

B

273

What is a mixture of a solute in a solvent called?

[ "transition", "link", "structure", "solution" ]

D

274

Silver is an example of a mineral containing only one kind of what?

[ "mass", "chemical", "matter", "element" ]

D

275

What particles ancient greeks propose that matter consists of ?

[ "molecules", "ether", "atoms", "ions" ]

C

276

Repolarization occurs when the membrane potential begins to move back toward its resting what?

[ "tension", "charge", "voltage", "resistance" ]

C

277

Mollusks have a true coelom and a complete what?

[ "tissues system", "skeletal system", "nerve system", "digestive system" ]

D

278

Which organelles, made of protein and ribosomal rna, build cellular proteins in the cytoplasm?

[ "chromosomes", "chloroplasts", "dna", "ribosomes" ]

D

279

What type of matter makes up most of the universe?

[ "liquid", "gas", "plasma", "carbon" ]

C

280

Most mammals are viviparous, which refers to what reproductive result?

[ "laying eggs", "live birth", "spawning", "identical twins" ]

B

281

Proteins are polymers of what kind of acids?

[ "lactic", "acetic", "lipids", "amino" ]

D

282

What is the official name for the study of life?

[ "botany", "geology", "chemistry", "biology" ]

D

283

What does an invertebrate, like a snail, not have?

[ "a heart", "eyes", "reproductive organs", "backbone" ]

D

284

What is the dinosaur genus that's closest to modern birds?

[ "diplodocus", "sauropods", "Rapter", "deinonychus" ]

D

285

In what type of organisms are daughter cells individuals?

[ "multicellular organisms", "hematopoietic organisms", "unicellular organisms", "macroscopic organisms" ]

C

286

What group was long considered part of the plant kingdom because of obvious similarities; both are immobile, have cell walls, and grow in soil?

[ "fungi", "bacteria", "mosses", "coral" ]

A

287

What type of waves transmit the energy of an earthquake?

[ "tectonic waves", "sonic waves", "volcanic waves", "seismic waves" ]

D

288

In our bodies, the chest cavity is a clear example of a system at what?

[ "scale", "default", "rest", "resonance" ]

D

289

How do prokaryotic cells divide?

[ "Fusion", "binary fission", "function fission", "multiple fission" ]

B

290

What is the term for a series of biochemical reactions by which an organism converts a given reactant to a specific end product?

[ "internal pathway", "metabolic pathway", "direct pathway", "hydrogen pathway" ]

B

291

Exemplified by sea stars and sand dollars, echinoderms have a calcareous structure developed by pigment cells and made of ossicles, which is called what?

[ "thorax", "hydrostatic skeleton", "endoskeleton", "exoskeleton" ]

C

292

What phase does the nuclear envelope begin to break down?

[ "interphase", "pasiphaë i", "nitrogenase i", "prophase i" ]

D

293

What are formed when cells from the male and female parts of the plant combine?

[ "trees", "varieties", "atoms.", "seeds" ]

D

294

What is another name for anther pollen sacs?

[ "microsporangia", "Gametangia", "Megasporangia", "ganglia" ]

A

295

What is released to lubricate the vagina to facilitate intercourse?

[ "blood", "vaginal secretions", "semen", "urine" ]

B

296

Cnidarians are an example of organisms that possess a simple type of what system, used for sensing touch?

[ "lymphatic system", "circulatory system", "bacterial system", "nervous system" ]

D

297

What can we learn about a wave by finding the product of the wavelength and frequency?

[ "type", "decibels", "speed", "volume" ]

C

298

Where are liverworts most often found?

[ "along stream beds", "in the ocean", "on mountains", "in deserts" ]

A

299

What does a continuous string of earthquakes indicate about a volcano?

[ "it is cooling down", "extinction is close", "eruption is close", "it is heating up" ]

C