A population is likely to increase in size ifa. there are more postreproductive adults than juveniles.b. parasites increase in abundance.c. its population pyramid is narrower at the base than inthe middle.d. its reproductive rate is greater than replacement levelfertility.

A population is likely to increase in size ifa. there are more postreproductive adults than juveniles.b. parasites increase in abundance.c. its population pyramid is narrower at the base than inthe middle.d. its reproductive rate is greater than replacement levelfertility.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

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Chapter40: Population Ecology

Section: Chapter Questions

Problem 10SA: An increase in infant mortality will _______ a populations replacement fertility rate. a. raise b....

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Question

A population is likely to increase in size if
a. there are more postreproductive adults than juveniles.
b. parasites increase in abundance.
c. its population pyramid is narrower at the base than in
the middle.
d. its reproductive rate is greater than replacement level
fertility.

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

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