Based on this study, FOXP2 must be expressed in which tissues?
A. brain
B. muscle
C. muscle and brain
D. nerves in the ear
E. muscle and nerves in the ear
C. muscle and brain
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At which phase are centrioles beginning to move apart in animal cells?
A) telophase B) anaphase C) prometaphase D) metaphase E) prophase
Ichthyosaurs were extinct aquatic reptiles distantly related to living lizards. Fossils show us that they had dorsal fins and tails, as do fish, even though their closest relatives were terrestrial reptiles that had neither dorsal fins nor aquatic tails. The dorsal fins and tails of ichthyosaurs and fish are
A. homologous. B. adaptations to a common environment. C. examples of convergent evolution. D. Three of the responses above are correct. E. Two of the responses above are correct.
Both the innate and adaptive defenses of the immune system work to prevent
a. disease. b. penetration by invading pathogens. c. colonization by pathogens. d. the penetration and colonization by pathogens, and the diseases they cause.
The ________ are the 23rd pair of chromosomes that carry the traits that determine gender
Fill in the blank(s) with correct word