Which of the following macromolecules leaves the nucleus of a eukaryotic cell through pores in the nuclear membrane?
A) DNA
B) amino acids
C) mRNA
D) phospholipids
Answer: C
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Which of the following is a diploid cell destined for a specialized role in the production of gametes?
A) somatic cell B) germ-line cell C) spermatid D) polar body E) ootid
Which animal does a dolphin or whale most resemble as it swims through water?
A. A running lizard B. A swimming shark C. A swimming penguin D. A swimming alligator E. A running dog Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about how a whale swims? What other information is related to the question? Choose Answer · Given what you now know, what information 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?
If a mutation prevented the formation of lignin, which tissue would be most affected?
a. vascular cambium b. parenchyma c. collenchyma d. sclerenchyma e. mesophyll
A clam is a(n)
A) arthropod. B) mollusk. C) echinoderm. D) chordate. E) arachnid.