An opening in leaves that functions in the
exchange of gases is called a
a. cuticle.
b. stoma.
c. guard cell.
d. pit.
e. pore.
B
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Answer the following statements true (T) or false (F)
1. All tissues are composed of cells. 2. The capacity to maintain a fairly constant body temperature is a homeostatic process. 3. A community is composed of different populations of animals and plants. 4. A defining characteristic that distinguishes prokaryotic and eukaryotic organisms is the lack of cell structure in one versus the other. 5. The modification of a limb that was used for walking in a pre-existing ancestor to one that is used as a wing for a species today is called proteomics.
Which of the following best describes the distribution of corn in an agricultural field?
A) uniform B) random C) clumped D) ideal
Alternation of generations is a means of reproduction by (algae/ciliates/fungi/insects).
Fill in the blank(s) with the appropriate word(s).
Which cells play the greatest role in allergic symptoms?
a. T cells b. monocytes c. plasma cells d. mast cells e. eosinophils