Warm-Bloodedness in Different Fishes

question 22

Multiple Choice

Warm-bloodedness in different fishes

• A) Evolved only once in an ancestral fish
• B) Evolved several times independently
• C) Is restricted to one genus
• D) Is found mainly in eels

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Definitions:

Rh Incompatibility

Rh incompatibility is a condition that occurs during pregnancy if a mother's Rh blood type is negative and her fetus's Rh blood type is positive, potentially leading to hemolytic disease of the newborn.

Rh-Negative

A blood type classification indicating the absence of the Rh factor, a specific protein found on the surface of red blood cells.

Rh-Positive

Refers to the presence of the Rh factor on the surface of red blood cells, a protein that can play a significant role in blood transfusions and pregnancy.

Air Pollution

The contamination of the air by harmful substances including gases, particulates, and biological molecules, leading to adverse effects on health and the environment.