Which Statement About the Portfolio Effect Is True

question 17

Multiple Choice

Which statement about the portfolio effect is true?

• A) It occurs when variations in one species' population cancels out variation in another so that overall abundance in the community remains the same.
• B) Greater diversity decreases the chances of the portfolio effect occurring.
• C) It was proposed by Robert May.
• D) It is a mechanism that promotes community dynamics.

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Definitions:

Ductus Deferens

Duct of the testicle, running from the epididymis to the ejaculatory duct; also called vas deferens.

Scrotum

A pouch of skin containing the testicles.

Second Stage

In the context of childbirth, the phase from full cervical dilation to the delivery of the baby.

Cryptorchidism

Failure of the testis to descend.