3. What impact do the amounts of available energy, water, and
oxygen have on an ecosystem?
(1) They act as limiting factors.
(2) They are used as nutrients.
(3) They recycle the residue of dead organisms.
(4) They control environmental temperature.

Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.

Which enzymes break down carbohydrates?

What happens when water’s salinity increases? mass decreases. freezing point decreases. buoyancy of objects decreases. the amount of dissolved minerals decreases.