The problem with plastic garbage is that it ________
a. can go from storm drains to the sea only
b. can harm birds and mammals when consumed only
c. can last for hundreds of years in the ecosystem only
d. all of the choices
d
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____________________ is a symptom of Gaucher disease (indicate any one)
Fill in the blank(s) with correct word
Which of the following adaptations to the plasma membrane allows mammals to hibernate in subzero
temperatures without their plasma membranes freezing?
a. Increase in cholesterol content only. b. Increase in protein content only. c. Increase in the number of double covalent bonds in phospholipids. d. Increase in both cholesterol and protein content. e. Increase in both cholesterol and double covalent bonds in phospholipids.
What process results in the formation of the endosperm and the embryo in angiosperms?
A. double fertilization B. hydrolysis C. alternation of generations D. secondary growth E. determinate growth
Toll like receptors are surface proteins on the bacterial cell membranes that are recognized by the PAMPs located on the surface of the phagocytic WBC's
a. true b. false