Microphylls is a structure that can only be found in:
a. ferns.
b. liverworts.
c. hornworts.
d. club mosses.
e. whisk ferns
d
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Where would you expect to find the plus-end of a microfilament in a crawling cell?
A. near the plasma membrane of the leading edge of the cell B. near the plasma membrane of the trailing end of the cell C. near the cell center D. Answers a and b are both correct.
A logical consequence of the second law of thermodynamics could be stated, ___.
A. every chemical reaction must increase the total entropy of the universe. B. energy can be transferred or transformed, but it cannot be created or destroyed. C. if the entropy of a system increases, there must be a corresponding decrease in the entropy of the universe. D. if there is an increase in the energy of a system, there must be a corresponding decrease in the energy of the rest of the universe. E. every energy transfer requires activation energy from the environment.
The neritic zone produces ________ of the world's animal harvest of fish and shellfish
a. 60% b. 40% c. 10% d. 90%
Eosinophils are especially important in defending the human body from infection by
A) bacteria. B) viruses. C) molds. D) large parasites. E) any type of microorganism.