In African cichlid fish, ____ regulates neurons that control sexual and aggressive behavior
a. testosterone
b. estrogen
c. androgen
d. gonadotropin-releasing hormone
e. follicle-stimulating hormone
ANSWER: d
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Which of the following is not an enzymatic function of the editosome?
A. uridylyltransferase B. ligase C. deaminase D. exoribonuclease
Epidermal placodes are:
A. epidermal thickenings that give rise to integumental coverings such as feathers and hair B. epidermal thickenings that give rise to the lateral line system C. epidermal thickenings that lead to the formation of mesoderm D. epidermal thickenings that give rise to skin glands E. none of the choices provided
Molecular biology can be used to support the theory of evolution. Which of the following is an example of molecular biology being used for this purpose?
A) comparing the DNA of a freshwater and saltwater snail B) recognizing that the wings of flies and the wings of bats are analogous structures C) observing how embryos of frogs and humans develop D) identifying the geographic areas where different finches live
Botryococcus braunii is an alga that produces hydrocarbons at (10/20/30 ) percent of its dry weight and could be harvested in the future as an alternative fuel
What will be an ideal response?