Which of the following would increase the rate of heat exchange between an animal and its environment?

A) feathers or fur
B) vasoconstriction
C) wind blowing across the body surface
D) blubber or fat layer


C

Biology & Microbiology

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All photoreceptors ________

a. are found in eyes b. convert photon energy to visual images c. are found in vertebrates d. convert photon energy to sensory neuron excitation

Biology & Microbiology

Diastolic pressure is

a. the lowest blood pressure in the aorta. b. the pressure measured when the left ventricle is contracted. c. the peak pressure in the aorta when the left ventricle contracts. d. the difference between the highest and lowest pressures. e. an average of high and low pressures.

Biology & Microbiology

A bilaterally symmetrical, wormlike animal that has a complete digestive tract and a cuticle could be a member of which of the following phyla?

A) Cnidaria B) Annelida C) Nematoda D) Chordata

Biology & Microbiology

The thyroid gland is located

A. in the brain. B. in the neck. C. near the ovaries or testes. D. on top of the kidneys. E. near the small intestines.

Biology & Microbiology