When a scientist is conducting research about all the plants and wildlife in the mojave desert as well as the desert’s resources, such as water and soil, the scientist is studying
a. a community.
b. a population.
c. a species.
d. an ecosystem.

D

Explanation:

An ecosystem in definition is a biological community of interacting organisms and their physical environment.

If the scientist was conducting a research on the plants and the wildlife then it would be [A]

If the research was about the number a specific specie in the Mojave Desert, then it would be [B]

If the research was about the type of ants available it would result in the answer being [C]

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

i think its through the fallopian tube