Sexually reproducing animals that can produce both eggs and sperm are called ____
a. invertebrates
b. asexual
c. hermaphrodites
d. amniotes
e. zygotes
ANSWER: c
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Which white blood cells comprise 3-7% of circulating WBCs, are phagocytic, and can migrate out into body tissues to differentiate into macrophages?
A. Monocytes B. Eosinophils C. Lymphocytes D. Neutrophils E. Basophils
An animal found in the rocky intertidal zone has eight overlapping plates and is tightly adhering to the
rock with a muscular foot. This animal is most likely a member of the class:A. Polyplacophora. B. Polychaeta. C. Bivalvia. D. Gastropoda. E. Cephalopoda.
It's your birthday and you splurge with a big slice of chocolate cake, heavy on the icing. Shortly afterwards, your blood glucose levels rise until an endocrine mechanism (secretion of insulin) counteracts this rise and glucose levels decline. The initial change in blood glucose and insulin response that follows is an example of:
A. diffusion. B. positive feedback. C. homeostasis. D. lack of homeostasis. E. physiological constancy.
Green fluorescent protein is used to
a. label antibodies. b. visualize proteins in living cells. c. photobleach other fluorescent proteins. d. label DNA sequences.