Which of the following must occur in order for an ecosystem to continue to exist? А
The populations of producers and decomposers must be stable.
B
The populations of animals must continue to decrease.
С
There should be more populations of consumers than producers.
D
There should be fewer populations of producers than consumers.
Ok

The arrows indicate the direction of wind flow. which place experiences monsoons?

Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.