What causes populations and ecosystems to remain stable or to change
over time?

your answer is true

i am 100% sure

explanation:

it's not c. i took the quiz and got it wrong. so my best guess is b.

have a great day, and hope this .

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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