Since the hepatic portal vein empties into the liver, it is able to control the amount of _________ in the blood.
A. alcohol and drugs
B. toxins, pesticides, and carcinogens
C. glucose
D. glucose, alcohol, and drugs
E. glucose, alcohol, drugs, toxins, pesticides, and carcinogens
E. glucose, alcohol, drugs, toxins, pesticides, and carcinogens
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In females with incontinentia pigmenti, the mosaic
effect of X inactivation in human females can be observed in a. skin color. b. hair color. c. distribution of fat cells. d. distribution of sweat glands. e. all of these.
The smallest unit of life that can exist as a separate entity is a(n) ___________.
A. cell B. molecule C. organ D. population E. ecosystem
In all food chains, the flow of energy is unidirectional from the bottom to the top
Indicate whether the statement is true or false
The modern synthesis theory of evolution explains Darwin’s observations of variation among
offspring in terms of amino acid substitutions. __________________ Indicate whether the statement is true or false.