How are viruses characterized (what features do we as scientists/biologists use to group them into categories)? What types of infections do they cause (describe, don’t just list)
What are the various types of genomes and how do they “work” (what genome acts as mRNA, what genome requires reverse transcriptase/why, how do RNA genomes get replicated)?
What is the significance of the envelope, how does this relate to infection/release?
What are the “morphologies” of viruses?
What types of cells can be infected with viruses?

Why do carbohydrate molecules function so well as fuel for the body?

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees