vijay556 wrote:
alex1233 wrote:
Lacking an understanding of the earth's massive and complex ecosystem, many people tend to overestimate the importance of organisms, such as human beings, that are at or near the top of the food chain, and underestimate that of micro-organisms, such as plankton, that dwells near the bottom of the food chain.
A) organisms, such as human beings, that are at or near the top of the food chain, and underestimate that of micro-organisms, such as plankton, that dwells near the bottom of the food chain.
B)
...
A) organisms, such as human beings, that are at or near the top of the food chain, and underestimate that of micro-organisms, such as plankton, that dwells near the bottom of the food chain.
B)
...
