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
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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?
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.
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
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.