Keystone predators effect their habitat by keeping the population of animals down.
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Here give it to her now but she copy and pasted and I got in trouble...
Explanation:
Answer:
According to a mind-bending new theory, a black hole is actually a tunnel between universes—a type of wormhole. The matter the black hole attracts doesn't collapse into a single point, as has been predicted, but rather gushes out a "white hole" at the other end of the black one, the theory goes.