Why an ecosystem with greater biodiversity more resilient than an ecosystem with less biodiversity?

because if there's more biodiversity/animals there would be many animals that could take over  another animal role in the ecosystem incase of extinction unlike when there's fewer biodiversity or animals meaning fewer replacements and unbalance in the ecosystem

Explanation:

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b is dominant over the allele for the white fur.

the correct answer is sex-linked recessive.

i just took the test