__________, can freely diffuse into and out of cells without proteins.
A) Sugars, amino acids and fatty acids
B) Oxygen and carbon dioxide
C) Oxygen, carbon dioxide and fatty acids
D) Oxygen, carbon dioxide and amino acids
E) Oxygen, amino acids and fatty acids
Ans: C) Oxygen, carbon dioxide and fatty acids
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Sexual reproduction involves ____
a. one diploid cell fertilizing a haploid cell b. the union of two somatic cells c. the union of male and female gametes d. a single mitotic division of the parent cell to produce a daughter cell e. the union of two gametes to produce a haploid zygote
A suspect's guilt seems highly likely when a very rare combination of markers is
A) found in the population the suspect comes from and at the crime scene. B) not found in the population the suspect comes from, but present at the crime scene. C) found in the suspect's DNA but not at the crime scene or in the population the suspect comes from. D) found in the population the suspect comes from, in the suspect's DNA, and at the crime scene.
Which of the following ancestors of whales could probably not have come out of the water?
a. Dorudon atrox b. all of the choices c. Elomeryx d. Rodhocetus
The term that Darwin used to describe the concept that those with superior strength, behavior, or other attributes are more likely to survive than those that are not so well endowed, and thus are more likely to pass their traits to the next generation, is called
A. natural selection. B. superior beings. C. survival of modifications. D. biological diversity. E. geometric progression.