What structures of the male and female reproductive systems do not share a common embryonic origin?
A. labia majora and scrotum
B. labia minora and urethra
C. clitoris and penis
D. cervix and ejaculatory duct
E. All of these pairs share a common embryonic origin.
D. cervix and ejaculatory duct
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In response to global climate change, it is likely that some plant species will survive while others will go extinct. All of the following are explanations of this pattern except:
A. greenhouse gases are toxic, so increasing levels of these gases will cause some plants to go extinct. B. plants differ in their abilities to respond physiologically to persistent environmental change, and some will survive increased temperatures. C. temperatures may increase more rapidly than some species can adapt, which will lead to their extinction. D. some plants are able to migrate more effectively than others and can move into areas with more favorable conditions for survival. E. All of the answer options are correct explanations for the predicted pattern.
An individual with cystic fibrosis carrying two different mutant alleles would be a(n) ____________________ heterozygote for the disease
Fill in the blank(s) with correct word
The concept of ________ energy is the basis for models of optimal foraging
Fill in the blank(s) with correct word
Which of the following best explains the attraction of water molecules to each other?
A) Nonpolar covalent bond B) Polar covalent bond C) Ionic bond D) Hydrogen bond E) Electron-proton interaction