Salt marsh plants play an important ecological role in

a. recycling nutrients.
b. stabilizing sediments.
c. filtering run-off from coastal areas.
d. habitat for small animals.
e. all of the above


D

Biology & Microbiology

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what proportion of the long-eared offspring will be homozygous for the long-eared allele?  

A.  1/8 B.  1/4 C.  1/3 D.  1/2 Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about monohybrid crosses? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

The endosymbiont hypothesis proposes all of the following EXCEPT

A. chloroplasts originated when a nucleated cell engulfed a cyanobacterium. B. prokaryotes evolved when an aerobic bacterium engulfed a cyanobacterium. C. a nucleated cell engulfed an aerobic bacterium which evolved into mitochondria. D. mitochondria and chloroplasts were once free-living bacteria.

Biology & Microbiology

Eukaryotic chromosomes are composed of a complex of 60% protein and 40% DNA. This complex is referred to as

A. the histone complex B. the kinetochore C. chromatin D. cohesin

Biology & Microbiology

Conjugating ciliates exchange a pair of haploid micronuclei that undergo mitosis as a diploid micronucleus, while the macronucleus in each

A. divides by meiosis. B. disintegrates. C. is expelled from the cell. D. shrinks and becomes diploid micronuclei. E. fuses with each other.

Biology & Microbiology