What are proteins that act to speed up chemical reactions? a.

Enzymes

c.

Glycerol

b.

Amino Acids

d.

Polysaccharides

Enzymes because they are proteins that act as catalysts within living cells. Catalysts increase the rate at which chemical reactions occur without being consumed or permanently altered themselves.

Hope this helps! Please correct me if I'm wrong :)

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: