. Explore the BIGQUESTION When people become more concentrated in cities, this relieves pressure on ecosystems in areas that are now less populated. Why do you think this is the case?

the right answer is it connects amino acids

the answer is d. chordata

it would lead to upper respiratory infections and pneumonia.

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: