Which best relates cells and viruses?

a.) viruses grow and reproduce like cells.
b.) cells can infect specific host viruses
c.) rna is found in cells, but not in viruses
d.) viruses can infect certain cells.

In which situations is the principle of cross-cutting relationship useful in determining relative age?

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

Both male and female gametes are created during the process of meiosis. the formation of male gametes is called spermatogenesis. after telophase il of spermatogenesis, there would be are all genetically male gametes created that