__________ are single-celled and mostly or entirely
heterotrophic. Fill in the blank(s) with the appropriate word(s).
Answer: Flagellated protozoans
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In adaptive immunity, the ______ are the cells that poke holes in foreign cells.
Fill in the blank(s) with the appropriate word(s).
Scientists have discovered gene products, including the hormone ELH, that control all components of egg-laying behavior in Aplysia slugs. This discovery confirms that
A. the egg-laying behavior has absolutely no nervous system involvement. B. genes can control endocrine gland secretions that control behavior. C. this slug could avoid being eaten by garter snakes. D. genes only influence physiology and structure but not behavior. E. the egg-laying behavior is innate or hardwired into the slug's brain.
A transducing phage
a. cannot infect new host cells. b. is a lysogenic bacteriophage. c. contains fragments of the host chromosome instead of the viral genome. d. has a viral coat made of host proteins.
The cell membranes of fungi contain (cholesterol/ergosterol/fatty acid) which is a target of some antifungal treatments
What will be an ideal response?