A mutualistic symbiosis in which fungal hyphae penetrate plant root cells is called a(n) ____

a. rhizobium
b. lichen
c. arbuscule
d. mycorrhiza
e. haustorium


ANSWER: d

Biology & Microbiology

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What types of cells can perform glycolysis?

a. animals b. plants c. bacteria d. most prokaryotic and eukaryotic cells

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How many different offspring genotypes are expected in a trihybrid cross between parents heterozygous for all three traits when the traits behave in a dominant and recessive pattern? How many phenotypes?

A. 64 genotypes; 16 phenotypes B. 16 genotypes; 64 phenotypes C. 8 genotypes; 27 phenotypes D. 27 genotypes; 8 phenotypes

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Antimicrobial agents that usually kill target organisms are said to be:

a. bactericidal. b. antibiotic. c. bacteriostatic. d. antagonistic.

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In a process called ____, cells lose their normal regulatory controls and revert partially or completely to an embryonic

developmental state.

a. metastasis b. embryogenesis c. induction d. determination e. dedifferentiation

Biology & Microbiology