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General Biology MCQs

1. An embryonic cell that is "totipotent" is one that can _____.

2. At the moment of sperm penetration, human eggs _____.

3. Birds reptiles and mammals are called amniotes because _____

4. During gastrulation in frogs, a rod of mesoderm under the dorsal surface forms the _____.

5. In the five-kingdom system, prokaryotes are placed in the kingdom _____.

6. The domain eukarya contain(s) ______ kingdom(s).

7. The mesoderm gives rise to _____

8. The notochord functions as a core around which mesodermal cells form the frog's _____.

9. The outer-to-inner sequence of tissue layers in a post-gastrulation vertebrate embryo is _____.

10. The primitive streak in a bird is the functional equivalent of _____.

11. The term polytomy refers to a situation in which __________.

12. The three most abundant classes of nutrients are __________.

13. Almost all animals except _____ have either radial or bilateral symmetry.

14. Early work on signal transduction and glycogen metabolism by sutherland indicated that __________.

15. The decidua basalis is ________.

16. When bapna is hydrolyzed, it _______.

17. A blastomere is a _____ and a blastocyst is _____.

18. As cleavage continues, a zygote forms into a solid multicellular ball called a(n) _____.

19. Cleavage as part of embryonic development is distinctive because it involves ________.

20. Examine the evolutionary tree below. this tree tells us that the amnion is found in ______.

21. In a comparison of birds and mammals, having four limbs is _____.

22. In a newly fertilized egg, the vitelline layer _____.

23. In fetal circulation the descending aorta carries the less oxygenated blood from the _________.

24. The first stage of embryonic development is _____. this process produces _____.

25. Feedlots are a major cause of _________ in water.

26. According to the fossil record, plants colonized terrestrial habitats ________.

27. The behavior of an infant in sensorimotor stage four might best be described as _____.

28. The primary difference between enhancers and promoter-proximal elements is that enhancers _____.

29. The redundancy of the genetic code is a consequence of ______.

30. The structural framework of a blood clot is formed by __________.

31. The target organ of oxytocin is the smooth muscle of the _____.

32. The tract that carries sensations from muscle spindles to the cns is the __________.

33. To recycle nutrients, an ecosystem must have, at a minimum, _____.

34. Copernicus proposed a heliocentric model for the solar system primarily because ________.

35. Ddt, dde, pcbs, and pbdes are all ________.

36. Industrial ecologists ________.

37. The evolution of eukaryotic cells most likely involved _____.

38. Uniform spacing patterns in plants such as the creosote bush are most often associated with _____.

39. Unikonta is a supergroup that includes all of the following except _____.

40. What was an early selective advantage of a coelom in animals? a coelom _____.

41. The most important feature that permits a gene to act as a molecular clock is _____.

42. The most active form of ____________ is called calcitriol.

43. (intro) the amount of life on the ocean floor depends primarily on _________.

44. In the myogenic response, ________.

45. Opportunistic species typically ______.

46. The body fluids of an osmoconformer would be ________ with its ________ environment

47. During weeks 17-20, quickening occurs, which is when the __________.

48. Cutting the left optic nerve in front of the optic chiasm would result in blindness in the ____.

49. Secondary hypertension ____________________. select all that apply.

50. Sensory information that arrives at the cns is routed according to the ________ of the stimulus.

51. The cracking of rock due to heat is an example of _______.

52. The fuel used to run our cars contains _______ energy

53. Storage forms of glucose in living things include _____.

54. Metabolic acidosis results in _______.

55. The gd mat on the fur of the bats should be expected to consist of _____.

56. The scientific explanation for global warming is very dependent on the _______ atom.

57. The membrane potential is hyperpolarized at label ________.

58. The parasympathetic division is also called the ________ division.

59. The reduction division of meiosis specifically occurs at ________.

60. The variation in shape and function of the forelimb in tetrapods is a result of _____.

61. The kingdom described in "the lady, or the tiger?" is _____.

62. To stay abstinent, one should __________.

63. Both prokaryotic and eukaryotic cells use ________ to turn certain genes on or off.

64. Human body cells are approximately ______ water.

65. The gill flap, or operculum, was an important adaptation for fish because it helps with __________.

66. _____ describes why similar organisms do not interbreed because of a physical barrier.

67. _____ is associated with the fearless-peer experiment. the experiment demonstrates _____.

68. _____ stimulates the release of norepinephrine and dopamine and also blocks their reuptake.

69. ______ are responsible for toxic red tides.

70. _______ is an indicator of programmed cell death.

71. ____________ metamorphic rocks have mineral grains that line up in parallel layers.

72. A pine tree is a _____.

73. A placenta and viviparity are most likely adaptations for increasing ______.

74. About one in ____ individuals diagnosed with an eating disorder is male.

75. According to lecture, ________ had the highest rate of pathogenic weight practices.

76. Accumulation of undigested molecules would most directly be an indication of _____ dysfunction.

77. Adenosine triphosphate, or atp, is primarily used as _______ in living organisms.

78. Adherence to the intestinal lining by this bacterium is due to its possession of _____.

79. Advantages of using algae as a biofuel include _______. select all that apply.

80. After an economy has reached its peak, it begins the ______ phase of the business cycle.

81. After drinking alcoholic beverages, increased urine excretion is the result of _____.

82. After receiving a reward for escaping the puzzle box, the cats ________.

83. After the migrating neuron reaches its destination, ____ begin to form.

84. Agents generating mutation-inducing dna damage are collectively referred to as ________.

85. Agglutinogens are contained on the __________, whereas the agglutinins are found in the __________.

86. Agnes has heartburn, which is also called ____.

87. Agonists bind to ________ and antagonists bind to ________.

88. Albumin in the urine can indicate _____ of the urinary tract, particularly the glomeruli.

89. All dna polymerases synthesize new dna by adding nucleotides to the _____ of the growing dna chain.

90. All genes are composed of specific sequences of ___________ molecules.

91. All of the following are issues with lesioning except its __________.

92. Alpha-linolenic acid and linoleic acid are classified as _________ fatty acids.

93. Amino acids are needed to build ________, just as ________ are needed to create dna.

94. An abnormal plantar reflex in an adult produces babinski's sign, which indicates ________.

95. An appropriate way to close an unsolicited proposal is to _____.

96. An individual who carries staph but isn't sick is referred to as _______.

97. Another term for tympanitis (inflammation of the middle ear) is ___________/itis media.

98. Antibiotic resistance evolves in bacteria when ________.

99. As a result of a severe disturbance, a community will ________.

100. As a result of the punic wars rome __________

101. As alexander fleming knew, most bacteria fall into one of _____ categories.

102. As energy is transferred among organisms, some escapes from the environment as ____ energy.

103. As heat and pressure increase, ductile deformation _____.

104. Atp hydrolysis directly powers the movement of _____.

105. Axons are necessary for neurons to be able to ____.

106. Because of plate tectonics, about 250 million years ago __________.

107. Because of the property of paleomagnetism, _____.

108. Bed-wetting is most likely to occur at the end of ________ sleep.

109. Cells having matched pairs of chromosomes are _____.

110. Cells were first identified as robert hooke observed _____.

111. Characters traits can be discovered by analyzing __________.

112. Contraceptive pills mimic the ___________ feedback effect of ___________.

113. Gold is opaque and reflective. it has a _____.

114. H.m. was able to learn and remember ____.

115. Habituation and sensitization differ depending upon whether ____.

116. Hearing organs are housed within the ___________ in the inner ear.

117. Her nervousness had a profound ______ on her ability to play the piano. it _______ me too.

118. High-fat foods stimulate the appetite mostly because they ____.

119. Highway vehicles are responsible for ___% of the nox air emissions in the u.s.

120. Hospital outpatient programs and methadone clinics would be examples of __________ prevention.

121. Humans are dependent on _______ for their food supply.

122. Humans use more fresh water for ________ than for any other purpose.

123. If the figure represents a marine food web, zooplankton are most likely ________.

124. If the protein retinoblastoma is ________, it can bind to and ________ the myc protein.

125. If you randomly removed a somatic cell from the human body, odds are that it would ________.

126. Images that fall on the optic __________ are not visible because this area lacks rods and cones.

127. In a complete flower, a(n) _____is found on a filament and a(n) _______ is found on a(n) _______.

128. In a municipal wastewater treatment plant, the primary treatment step includes ________.

129. In a typical stream, where the gradient is steep, the discharge is _____.

130. Lack of body fluids is to thirst as ________ is to ________.

131. Long before humans invented it to power aircraft, jet propulsion evolved in _____.

132. Most _______ are secreted into the extracellular fluid from endocrine glands or tissues.

133. Most mutagens are carcinogens. this is because __________.

134. Much of the original forest cover on madagascar has been destroyed primarily as a result of _____.

135. Natural selection drives changes in allele frequencies by influencing traits with a ____ basis.

136. Negative feedback is a method of homeostatic control that __________.

137. Nodes of _____ are gaps in the _____ that coat some axons.

138. Rods are to cones as _____ is (are) to _____.

139. Salinization increases the concentration of _______ in soil.

140. Savanna is considered a transitional biome because it is intermediate between two _______.

141. Scientific experimentation is important in that it allows the experimenter to __________.

142. Sedimentary rocks with ripple marks suggest that the rocks formed _____.

143. Sexual reproduction relies on ________ and cell growth and repair rely on _______.

144. Some antibiotics interfere with bacterial ribosomes by _____ protein synthesis.

145. Sound waves arriving at a listener first strike the _____.

146. Surveys indicate most adults in middle adulthood are afraid of having __________.

147. The ___ method of anthropology is useful in many different work settings.

148. The __________ creed signifies the belief in the father, the son, and the holy spirit.

149. The __________ is the maximum drug effect, regardless of dose.

150. The ___________ lies directly behind the _________. these two regions are "twins."

151. The ____________ exhibit receipt and association of general body sensations.

152. The ___________________ propelled flowering plants to an explosive adaptive radiation.

153. The decision for a neuron to fire is determined by the ____.

154. The pyelogram records information about the _____:

155. The absorption of the majority of ingested nutrients takes place largely in the __________.

156. The amount of carbon removed by forests in the united states each year is equal to _______.

157. The animal rights movements in society evolved from ________.

158. The aspect of hearing that declines most significantly in midlife is the ability to __________.

159. The lock-and-key analogy for enzymes applies to the specificity of enzymes _____.

160. The nuclear envelope disintegrates during _____. metaphase prophase anaphase telophase

161. The place within a replication bubble where replication is actually occurring is called a _____.

162. The prefix ana- means _________; the opposite of ana- is _____.

163. The source of most of the energy we use today is _____. fossil fuels geothermal nuclear biomass

164. There are more species of ______ than of any other type of animal.

165. Together, sewage treatment and drinking water treatment are used to _____.

166. Traffickers look for victims in vulnerable situations such as ________. select all that apply.

167. Tropical ocean waters are more saline than colder waters because tropical waters _____.

168. Turning off a respirator or a heart-lung machine is an example of _____ euthanasia.

169. Two features of ray-finned fish not found in sharks are _____.

170. Various persons or groups with a legitimate interest in a company's actions are called ____.

171. Water currents along the coastline of chile pull up deep water that is __________.

172. Which of the following is a property of liquid water? liquid water _____.

173. Within eukaryotic cells, there is an intricate network of _______ with unique functions.

174. Solid fats have a high proportion of _____.

175. The teeming diversity of animals in the rain forest has led to _____.

176. Climax communities __________________communities that are undergoing primary succession.

177. Fluctuations in the phosphorus cycle in aquatic ecosystems _______.

178. Competitive athletes train at __________ of estimated maximal heart rate.

179. Foodborne illnesses typically result primarily in ________ signs and symptoms.

180. According to ernest hilgard, hypnosis is the result of __________.

181. The order ___________ is responsible for vectoring trench fever.

182. Most cases of encephalitis _____.

183. Most taste buds are made of __________ types of modified epithelial cells.

184. Mount saint helens represents an example of __________, which began with a __________.

185. Nonreplicative transposition occurs by breakage and reunion when_____?

186. Using nuclear transplantation, it is possible to generate __________ for therapeutic uses.

187. Hull fouling is a(n) _______ introduction of nonnative species.

188. Behaviorists believe that psychologists should focus on _____.

189. A(n) ____________ acts to increase the hydrogen ion concentration of a solution.

190. Today, north america has several small- to medium-sized plates subducting beneath its ____________.

191. The u.s. joint global ocean flux study was aimed at understanding _______.

192. The heaviest and fastest of all the small wildcats is the _______.

193. Scientists from russia and japan are attempting to resurrect the extinct woolly mammoth __________.

194. _____________ residues act as an address for delivery of proteins to lysosomes

195. Dallol is located on the edge of the _____________.

196. Sacred rituals that are especially important in the veneration of ancestors are called __________.

197. Climate and sea-level changes caused by the formation of the supercontinent pangaea _____.

198. The u.s. teen birth rate is __________ to the other developed nations of the world.

199. A typical oil control ring consists of _______ separate part(s).

200. 66. "fluoroscopy" is used to record ________:

201. A multivitamin supplement is a(n) ___________ supplement.

202. During the illumina sequencing reaction, ______________

203. Human cancer causing viruses most often have a ___________ genome.

204. Some viruses cause abnormal growth of cells rather than destruction. this is called __________.

205. The statement "dna rna proteins" ________.

206. To reconstruct phylogenies, biologists use the __________ method.

207. A man who carries an allele of an x-linked gene will pass it on to _____.

208. A means of controlling sex offenders has involved reducing ____.

209. A person experiencing dizziness after using a strong household cleaner is illustrating ____.

210. A regulatory process called _____ helps you maintain your baseline body weight.

211. Action potentials occur ____________________________.

212. An experiment looking at structures smaller than a cell would most likely employ a _______.

213. Fish rely on coral for _______.

214. Gene families are groups of _______ genes that arose by _______ and _______.

215. Large animals need specialized organs for gas exchange because ________.

216. Lepirudin is a drug that inhibits thrombin. it will have an effect specifically on the __________.

217. Most autistic individuals develop symptoms of the disorder ________.

218. Moving through trophic levels _______.

219. Obesity is defined as having a body mass index of ______ or higher.

220. Ocean acidification is the result of cars releasing _______.

221. Of the following urinary system organs, major homeostatic functions are performed by the ________.

222. One group of reptiles, characterized by the fossil archaeopteryx, led to the evolution of _____.

223. The primary role of the phosphate buffer system is to __________.

224. The rate of ventricular conduction is best determined by the _______________________ on an ecg.

225. The results of the meselson-stahl experiments relied on all of the following except _______.

226. Wormlike lineages of lophotrochozoans are distinguished by specialized _____.

227. Speciation requires that two populations become _____ isolated from each other.

228. The figure below illustrates ______.

229. The highlighted grouping in the cladogram is a ____________ grouping.

230. To help prevent the proliferation of antibiotic-resistant bacteria, you should __________.

231. A supplemental appendix is to a book as a ____________ is to a bacterial chromosome.

232. The variety of skin tones present in the world demonstrates ________________.

233. The washing steps are necessary to _______.

234. Unlike skeletal muscle action potentials, cardiac muscle action potentials __________.

235. About ___________ babies born to mothers over 40 have ________.

236. According to this figure, the amphibians are a _____ group.

237. After a human sperm penetrates an egg, a fertilization envelope forms. this membrane _____.

238. An e. coli cell without a functional laci gene is expected to _____.

239. An ovum bursts from one of a womans two __________ and is drawn into one of two __________.

240. Archaea has no _________________. as a result, it is unable to form the 30 nm fiber of chromatin.

241. Arteries are most accurately defined as blood vessels that ________.

242. At the onset of the embryonic period, the _____ appears. it will eventually become the neural tube.

243. Based on this tree, the lineage leading to ________ was the first to diverge from the other lines.

244. Bones are composed mostly of __________. a. magnesium b. vitamins c. calcium d. cartilage

245. Caspases in mammals, which are similar to _______ in nematodes, are involved in _______.

246. Human prenatal development takes ___ weeks.

247. In a comparison of birds and mammals, the condition of having four limbs is __________.

248. Using body mass index (bmi), a bmi of ____ to _____ is defined as overweight.

249. _____ aid in the coordination of the activities of adjacent animal cells.

250. ____ is a form of vigorous physical activity.

251. ________ prohibits re-initiation of chromosome replication.

252. A hypothesis must be testable to be scientifically valid. being testable means that _____.

253. An important source of antioxidants is the ________ found in ________ .

254. Animals that can detect ultraviolet (uv) light differ from humans by having ________.

255. Cells are most stable in _________ environments?

256. Ruvc endonuclease resolves holliday junctions according to a patch recombination model if ______?

257. S, the selection coefficient, is a relative measure of _________________

258. Shubin and daeschler specifically traveled to ellesmere island to hunt for fossils because _____.

259. Some neandertal physical characteristics may have arisen as adaptations to a ______ environment.

260. The frank-starling law of the heart is an ____________ property of heart muscle.

261. The main functional unit, or super organism, of a honeybee hive is the __________.

262. The membrane potential is closest to the equilibrium potential for potassium at label _____.

263. The nutrient standards used on nutrition facts panels are called ________.

264. Urine, with a ph of 6, is _________ times more acidic than seawater, with a ph of 8.

265. Sloths have less muscle than other mammals their size in order to _______.

266. One way scientists can study human migration pathways is by using ____ pathways.

267. The chief contributors of saturated fatty acids in the u.s. diet include ________.

268. The chemical reaction illustrated in the accompanying figure _____.

269. In theory, each plaque on a plate corresponds to ___________________.

270. In terms of structural materials, _______ is to plants what _______ is to lobsters and crabs.

271. In the average adult, the sudden loss of ________ cc of blood is considered serious.

272. It is best to say that the protection to properties offered by sea walls along coasts _______.

273. People that will most likely be victims of peer pressure are __________.

274. Primary and secondary waves are _____ waves, and love waves are _____ waves.

275. Proliferation of lymphocytes occurs immediately after __________.

276. Proteases digest _____, a nutrient found in foods.

277. Protein coding genes specify the manufacture of ________ as their immediate product.

278. Protein is _______ when carbohydrates are scarce.

279. Pubic hair, breasts, facial hair, and deepening of the voice are called _____.

280. Pulmonary endo/scop/y is best used to _____________ diseases of the respiratory system.

281. Rapid blood loss of ____ quart(s) or more in an adult can lead to shock and death.

282. Rbcs are better known as ________ and wbcs are better known as ___________.

283. Recent research suggests that there is a link between _______ and low-back pain.

284. Reefs grow best in _______.

285. Ren descartes would be considered to hold a ________ view of the mind-body problem.

286. Replacing lost blood volume with an isotonic saline solution ________.

287. The autonomic nervous system is subdivided into two branches called the _____ and _____ systems.

288. The av valves close in response to the ________________________.

289. The base of the heart faces in the _____________ directions.

290. The basic bilaterian body form plan can be thought of as simply _____.

291. The basin and range region in the western united states is aptly named because _____.

292. The best area to check the adequacy of peripheral circulation is in the _______.

293. The correct order (from start to finish) of fracture repair is __________.

294. The darker the skin of a person, the more likely that some of that person's ancestors _____.

295. The enzyme _____ repairs 99% of mismatched bases immediately during replication.

296. Penicillin interferes with __________________, causing bacteria to die from ______________.

297. Plate tectonics has been responsible for instances of all of the following except ________.

298. Relative to a ph of 6, a ph of 4 has a ______.

299. People with rem behavior disorder ____.

300. In contemporary societies, state governments organize networks of redistribution by __________.

301. Primates enhanced ___________ led to a reduced sense of ___________.

302. In learning, the basal ganglia ____.

303. The energy for sensory transduction by the lateral line system in fish comes from _____.

304. The fastest way for organisms to adapt to a changing environment involves _____.

305. The binding of a catecholamine to a beta adrenergic receptor will ________.

306. One primary advantage of light microscopy over electron microscopy is that ________.

307. Our current ecological footprint __________.

308. The embryonic precursor to the human spinal cord is the _____.

309. Paleontologists organize fossils of related species based on their __________________ similarities.

310. Phylogenetic trees can always be regarded as ________ about evolutionary relationships.

311. Organisms that possess homologous structures probably __________.

312. The critical period for major anomalies is longest for the _____ system.

313. The bird says____

314. In cladistics, _______________ is(are) the primary criterion used to classify organisms.

315. Is the accompanying figure dna or rna? ________ is the arrow closest to the 5' or 3' end? ________

316. In eukaryotes, the normal or default state is that genes are turned _____.

317. Preferably, a pre-game meal should be eaten about ________ before an endurance event.

318. The age of the ocean floor is greatest in subduction zones or _____.

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