The posterior opening is called the anus
Answer D because humans can effect the way of life in an ecosystem and things like climate can effect them too
Builds protein is the correct answer
They're called Enzyme. They're made up of proteins. They act as a biological catalysts that can speed up chemical reaction. They have an active site that certain substrates binds into it and form a product. Enzyme works under optimum pH and temperature and the active sites are not changed unless denatured.
Rabbit. It's the only herbivore in this chain.
