Below Are Paired Items Referring to the Heartworm Dirofilaria Immitis

question 51

Multiple Choice

Below are paired items referring to the heartworm Dirofilaria immitis. Which of the pairs is mismatched?

• A) mosquito - vector
• B) mosquito - definitive host
• C) dog - definitive host
• D) dog - sexual reproduction
• E) None of the pairs is mismatched.

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Definitions:

Uniformitarianism

The geological principle suggesting that the same processes and natural laws that operate in the universe now have always operated in the past.

Natural Selection

A fundamental mechanism of evolution, where organisms better adapted to their environment tend to survive and produce more offspring.

Catastrophism

The theory that the Earth has been shaped by sudden, short-lived, violent events, possibly worldwide in scope, contrasting with uniformitarianism which emphasizes gradual changes.

Mitosis

A kind of cell division that produces new cells having exactly the same number of chromosome pairs, and hence copies of genes, as the parent cell.