The body’s main regulator of the internal environment is the ____

a. anterior pituitary gland
b. hypothalamus
c. medulla oblongata
d. cerebellum
e. pons


ANSWER: b

Biology & Microbiology

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Prior to the 1940s, many biologists thought that ____, being made up of 20 types of ____, was the best

candidate for genetic material.

a. protein; amino acids b. DNA; amino acids c. protein; nucleotides d. DNA; nucleotides e. RNA; nucleotides

Biology & Microbiology

Which of the following proteins involved in muscle contraction is also an ATPase?

A. Myosin B. Tropomyosin C. Troponin D. Actin E. Titin

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Accessory cells in nervous tissue are called

a. neurons. b. neuroglia. c. chondrocytes. d. formed elements. e. nerves.

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As global temperatures increase, evidence suggests that ribulose 1, 5-biphosphate carboxylase/oxygenase (rubisco) is likely to denature and photosynthesis rates will decrease.

Answer the following statement true (T) or false (F)

Biology & Microbiology