Nails are made of:

a.

living cells.

c.

living and dead cells.

b.

dead cells.

d.

none of the above.

Two drugs, called colchicine and cytochalasin, are known to disrupt the cytoskeleton within a eukaryotic cell, such as an amoeba. Which cell function would be most affected by addition of these drugs to an amoeba?

What is one major effect of the Earth's geologic plates? They change the surface of the earth They increase the frequency of thunderstorms They make hurricanes more severe They cool off the oceans.

According to the RNA World hypothesis, which of these tasks was accomplished by early RNA, but is not generally accomplished by the RNA of today's organisms? A. carrying genetic information B. carrying information for making proteins C.

Compared to eukaryotic cells, prokaryotic cells contain a. about 1000 times more DNA b. about one thousandth as much DNA c. twice as much DNA d. the same amount of DNA

What kind of plastic is used to make lp records?

What will most likely increase the amount of erosion that occurs on the banks of the river?

Which of the following is NOT a vascular tissue in a plant? xylem phloem parenchyma none of the above

How elements move between living and nonliving parts of the environment. An example would be the Carbon cycle, which is how carbon is cycled between carbon dioxide and glucose. Question 4 options: Biogeochemical cycles Community Food web Ecosystem

Although protein was part of the composition of the foods in this experiment, it was not the main macromolecule component of any of the foods.

Which of the following statements is true about protein synthesis in prokaryotes? A) Extensive RNA processing is required before prokaryotic transcripts can be translated. B) Translation can begin while transcription is still in progress.