The success of some viruses lies in their ability to evolve rapidly within the host. such a virus evades the host’s defenses by mutating and producing many altered progeny viruses before the body can mount an attack. thus, the viruses present late in infection differ from those that initially infected the body. discuss this as an example of evolution in microcosm. which viral lineages tend to predominate?

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.

List five ways we are indebted to phytoplankton