What occurs during periods of adaptive radiation? A.) many species become extinct. B.) populations migrate. C.) species evolve rapidly. D.) geographical ranges increase.
Which of the following accurately describes the patterns of inheritance in human blood types? A. Two alleles code for blood types and four phenotypes are possible. b. Allele IA and IB are codominant, and allele i is recessive. c. Allele i is dominant over alleles IA and IB. D. Three alleles code for blood types and three phenotypes are possible.
Which of the following is not a way in which trees benefit the environment? a. They remove a significant amount of carbon dioxide from the atmosphere. b. They remove a significant amount of oxygen from the atmosphere. c. Their roots hold soil in place, reducing rates of erosion. d. They remove ozone and particulates from the atmosphere.
Birds and reptiles conduct _____ fertilization and lay the eggs outside of the body. a. internal b. external
All of the following are types of symbiotic relationships except for A. commensalism. B. competitive exclusion. C. mutualism. D. parasitism.
In _____, one allele is dominant to a recessive allele. incomplete dominance simple dominance codominance pleiotrophy
What mode of nutrition do animal-like protists have? A) they are strictly parasitic. B) they are holozoic or parasitic. C) they are autotrophic in nature
Which of the following would describe Lamarck’s ideas about evolution? Horses and zebras are similar. They have a common ancestor. A mouse loses its tail in a fight. Its offspring will not have tails. Wolves eat most of the rabbits in a field. A few smart rabbits find hiding places. They survive and reproduce.
Which scientist thought he proved that plants obtain nutrients from water rather than soil? Which scientist demonstrated that the green parts of plants absorb carbon dioxide and release oxygen only in sunlight? Which scientist showed that plants use red and blue light in photosynthesis?
Which of the following stages of urban development contributed to an increase in suburban living? a. preindustrial b. industrial c. pedestrian d. automobiles
Two genes that are usually inherited together are probably ______. A.) Carriers B.) Influenced by the environment C.) Linked on a chromosome D.) Polygenic
All of the following are types of symbiotic relationships except for a. commensalism. b. competitive exclusion. c. parasitism. d. mutualism.
If your ________ is activated, you will feel relatively at ease. somatic nervous system sympathetic nervous system parasympathetic nervous system spinal cord
Which of the following is correct about the polyadenylation mechanism? A:a long chain of adenine nucleotides is added to the 3' end of mRNA during terminationof transcription B:a long chain of uracil nucleotides is added to the 3' end of mRNA during terminationof translation C:a long chain of guanine nucleotides is added to the 3' end of mRNA during termination of translation
Unlike bryophytes, ferns A. have vascular tissue. B. exhibit alternation of generations. C. utilize photosynthesis. D. have to get water from the environment.
Which class of organisms gather their energy directly from the sun? a. autotrophs b. carnivores c. herbivores d. detritivores
Photosynthetic algae create sugars that will eventually be broken down during which process? A. glycolysis, during respiration B. the Calvin cycle, during photosynthesis C. electron transport chain, during respiration D. the Krebs cycle, during photosynthesis
Which group of organisms is most closely related to Archeabacteria? a. animalia b. fungus c. plantae d. protista
What happens if you place human red blood cells in a concentrated salt solution a. They shrink as water moves from inside to outside the cells as a result of osmosis b. They burst as one to move from outside to inside the cells as a result of osmosis c. No change occurs as water freely diffuses back-and-forth across the cells membrane d. DeSales expand energy pumping water out in response to the great external salt concentration
Coral reefs are one of the oldest ecosystems on earth. please select the best answer from the choices provided t f