Answer:
An allele is a diffrent form of genes
Answer: the resilience of the pond ecosystem to different types of changes
Explanation:
The answer to this is B.
Non-native species are very hard to handle because since none of the native species know what to do with it they mostly leave it alone which means that the non-native species will end up on winning the native specie and eventually end up killing the native plants and animals in the environment!
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False Primary Producers must form the largest base, because if there is a shortage of them, then there will be only a small amount for all others. This i guess can be called the Doppler's effect
('bit of history in here)
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