________ are responsible for toxic red tides
A) Plasmodial slime molds
B) Dinoflagellates
C) Red algae
D) Diatoms
B
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Amylase has specific active sites for which type of molecule?
a. carbohydrates b. proteins c. lipids d. amino acids
Which of the following perceptions of taste is incorrect?
a. Bitter - elicited by simple sugars b. Sweet - elicited by glucose c. Sour - elicited by acids d. Salty - elicited by sodium chlorides e. Umami - elicited by glutamate
In eusocial animals like ants, the queen is diploid and the male is haploid. Why would female worker ants be more likely than other animals to engage in altruism, feeding the queen's offspring?
A. The queen establishes a dominance hierarchy over the colony. B. The worker ants are monogamous and remain faithful to the queen ant. C. It is a reflex for the worker ants to be altruistic. D. The worker ants are more related to the queen's offspring than they would be to their own offspring. E. The worker ants hope for reciprocal altruism and may become the queen ant.
Allelochemicals are active in preventing
a. herbivore feeding. b. germination of plant competitors. c. infection by pathogens. d. all of the above.