Upon Darwin's return from his voyage he spent time doing which of the following?
a. breeding dogs
b. breeding pigeons
c. breeding barnacles
d. breeding goldfish
e. breeding garden peas
B
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Which muscles contract during a restful expiration?
a. external intercostals. b. diaphragm. c. abdominal. d. both b and c.
Sugar is translocated in phloem from a source, or an area of ____, to a sink, or an area of ____
a. low sugar concentration; high sugar concentration b. high sugar concentration; low sugar concentration c. positive water potential; negative water potential d. negative water potential; positive water potential e. low pressure; equally low pressure
In this disease, the number of insulin receptors on target cells is abnormally low.
A. goiter B. gallbladder disease C. type I diabetes D. type II diabetes
Having an abnormally small number of platelets in the circulating blood is known as ___________
Fill in the blank(s) with the appropriate word(s).