These are nonmotile parasites with special organelles for penetrating host tissue.
a. Apicomplexa
b. ciliates
c. dinoflagellates
d. Microsporidia
Ans: a. Apicomplexa
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Ethylene oxide is
A. used as an antiseptic against anaerobes. B. sporicidal. C. only effective with high heat. D. a halogen. E. the active agent in household bleach.
Most of our food crops come from angiosperms.
Answer the following statement true (T) or false (F)
The ____________________ is used to package and ship components to other organelles and out of the cytoplasm
Fill in the blank(s) with the appropriate word(s).
Which of the following must occur in order to maintain a high pressure potential within guard cells?
A. Energy must be constantly expended. B. Stomata must take up more oxygen and less carbon dioxide. C. Water must exit guard cells by osmosis. D. Potassium ions must be actively transported out. E. The rate of transpiration must increase.