Question

Which situation describes parasitism?

O
A. Vegetables grow in a garden frequented by many rabbits.
) B. Ants feed on aphid wastes and protect the aphids from predators.
O
C. A bear catches and eats a salmon from a stream.
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D. Ticks live on and drink blood from a cow.
SUBMIT

Answer 1

Ticks live on and drink blood from a cow

Step-by-step explanation:

The only feed on cow and the cow gain nothing in return. That is parasitic

Answer 2

D. Ticks live on and drink blood from a cow.

This is an example of parasitism, where the ticks (parasite) are living off of the blood of the cow, the host animal.

Step-by-step explanation:

Parasitism is a relationship between organisms. In this relationship, one organism (parasite) lives on or in another organism (host) and gains benefits from the host, causing it some harm.

Parasites are classified as ectoparasites, which live on the body surface of the host (ticks, fleas, leeches, and lice) and endoparasites, which live in the body of the host. Endoparasites are either intercellular, which live inside the host’s body (round worms, tapeworms) or intracellular, which live inside the cells in the host’s body (bacteria or viruses).

Parasites help to control dominant species and has a role in evolution by transferring genetic material between species.