Why is algae classified in the Protist Kingdom and not the Plant Kingdom even though they are photosynthetic? Research why some scientists feel they should be classified as plants.

the answer is tropical areas. the tropical areas obtain more

radiant energy from the sun than they lose to space through terrestrial

radiation, and vice versa for polar areas. earth has an energy remaining in the

tropics and an energy scarcity for the polar areas.

explanation:

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

1. is geographic distribution

2 is increasing complexity

3 is transitional forms