Nancy visits a local reservoir where she feeds ducks and other birds. Every time she feeds them she notices that they fight for the best pieces and some do not get any. All living things struggle to get the necessary amount of food, water, and shelter. What is the term for this struggle? * A. overproduction B. natural selection C. variation D. Competition
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Biology, 21.06.2019 16:30
Which animal group is the largest and contains more species from all the other living groups combined? is it mammals or
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Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?
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The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important
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Biology, 22.06.2019 05:00
Idon’t know the answer and i’ve been stuck on it for a while now skskskskks
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Nancy visits a local reservoir where she feeds ducks and other birds. Every time she feeds them she...
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