Nhận biết (M1) The decline of the giant pika, a species found throughout northern North America before it became extinct around 8000 BCE, surely had a number of __________ the larger ecosystem in which it existed. The giant pika was part of a complex food web with other organisms, and its disappearance likely affected several other species.
Which choice completes the text with the most logical and precise word or phrase?
Nhận biết (M1)
The decline of the giant pika, a species found throughout northern North America before it became extinct around 8000 BCE, surely had a number of __________ the larger ecosystem in which it existed. The giant pika was part of a complex food web with other organisms, and its disappearance likely affected several other species.
Which choice completes the text with the most logical and precise word or phrase?
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