<span>Energy must constantly flow through an ecosystem for the system to remain stable.</span> it means that organisms must eat other organisms
I think that the answer is 1 and III
The main difference<span> is in the presence of a carbon atom. O</span>rganic compounds<span> will contain a carbon atom.</span><span> Do you have answer choices?</span>
Okay, this has to be in your own words, but I will tell you this. Natural Selection is living organisms that have adapted to the environment which surrounds them leading the the producing of offspring. Example, bugs are eaten by frogs and frogs are eaten by snakes and snakes are eaten by birds.
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(15) Label 1 is D
(16) Label 2 is A
(17) Label 3 is B
(18) Label 4 is C
