An example of mutualism is:
a. mycorrhizae and epiphytes.
b. epiphytes and tapeworms.
c. monarch and viceroy butterflies.
d. silverfish and army ants.
e. Rhizobium and legumes.
E
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Jellyfish (cnidarians) and comb jellies are thought to be closely related. While both trap food, the mechanism by which they achieve prey capture is different. Which of the following statements reflects this difference?
A. Comb jellies use cilia to create small currents around their bodies to draw in prey; jellyfish catch prey opportunistically. B. Comb jellies use specialized cells derived from mesoderm-like tissues to chase prey; jellyfish catch prey opportunistically. C. Comb jellies have a sticky substance on their tentacles to trap prey; jellyfish have nematocysts to sting and immobilize prey. D. Comb jellies have a stomach to digest and absorb prey; jellyfish have a stomach and a rudimentary intestine to digest and absorb prey.
What specialized structure is used for feeding in molluscs?
a. Periostracum b. Proboscis c. Conchiolum d. Radula
Strand B has the same order of nucleotides as
strand(s) a. A. b. C. c. D. d. C and D. e. A and D.
Four of the five answers listed below are related by a common division association. Select the
exception. a. mitochondria b. chromosomes c. ribosomes d. plastids e. microbodies