Which factor is the most important algal contribution to the fungal component of a lichen?

a. improved water conservation
b. mechanical protection from being blown away
c. photosynthetically derived food
d. less overlap among individual algal cells
e. pigment for camouflage


c

Biology & Microbiology

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Bilateral symmetry is characteristic of a(n)

a. cnidarian b. roundworm c. echinoderm d. corals e. flatworm

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Each tRNA has an __________ that base-pairs with a

codon, and each binds to the kind of amino acid specified by the codon. Fill in the blank(s) with the appropriate word(s).

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All of the following are forms of oxidation EXCEPT

A. loss of an electron. B. loss of hydrogen atom. C. a dehydrogenation event. D. substrate-level phosphorylation. E. gain of an oxygen atom and its electrons.

Biology & Microbiology

Meiosis produces a ________, which eventually gives rise to an egg in an unfertilized seed

A) pollen tube B) microspore C) sepal D) megaspore E) sporophyte

Biology & Microbiology