Many scientists classify viruses as non-living. the single, most important reason why viruses are classified as non-living is that they a. do not contain nuclei. b. are not composed of cells. c. are not able to reproduce. d. do not contain nucleic acid.

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

Which statement correctly compares metaphase i and metaphase ii? in metaphase ii twice as many chromosomes line up along the middle of the cell as in metaphase i. in metaphase i twice as many chromosomes line up along the middle of the cell as in metaphase ii. in metaphase ii twice as many chromosomes are pulled to opposite ends of the cell as in metaphase i. in metaphase i twice as many chromosomes are pulled to opposite ends of the cell as in metaphase ii.

Which of these is an example of structural protein in plants