Aperson withaids is likely to develop infectious disseases because the virus that causes aids
a)destroy cancerous cells
b)damage the immune system
c)increases the rates of antibody production
d)increases the rate of microbe destruction

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Which structure in the cardiovascular system connect arteries to veins?

Northern switzerland has a fairly cold climate caused by sea winds from the atlantic ocean but souther switzerland tends to be much warmer and sunnier, what could cause this difference?