1. Read information about the West Nile virus and its effect on the bird population in the state you live in. If your state has not been affected yet, choose another state that has. In your state, how many birds have tested positive for West Nile virus? Estimate what percentage of the total resident bird population this number represents

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

The endoplasmic reticulum (er) is an organelle in some cells. in these cells, it is continuous with the nuclear membrane and forms a large part of the cell\'s total membrane. sort the phrases below as describing rough er, smooth er, both, or neither. note: if you answer any part of this question incorrectly, a single red x will appear indicating that one or more of the phrases are sorted incorrectly.1) found in prokaryites and uekaryotys2) involved in protein synthesis3) involve in lipid synthesis4) contains molecular chaperones in lumen5) bound with ribosomes6) involved in toxin or drug metabolism7) large systemot internnected tubules,vesicles, and sacs8) "packages" enzymes in vesicles for secretion.

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain