Metabolism is the chemical processes that occur within a living organism in order to maintain life. Have a good day! Also, any answer that says, ‘Here is the link to your answer: (link)’ DO NOT CLICK ON IT!!
B and C are correct - A is incorrect as natural selection affects any generation of species. D is also incorrect as any species population change in an ecosystem inevitably affects another, even if it isn't a predator-prey relationship.
Humans are formed through sexual reproduction, some people think we just came him unknowingly and others think evolution where we come from apes, but scientist proved that humans are made through reproduction.
The answer is
Carbon because your dealing with coal
I’ve annotated your question and colour coded the answer, (the dotted line represents current bird population) and blue line represents what the population will look love after natural selection