GED Science Practice 2025 - Free GED Science Practice Questions and Study Guide

Question: 1 / 400

What is a mammal?

molten rock in the earth's crust

an aggregating leukocyte

an animal fed milk from the mother's body

A Molten rock in the earth's crust is a type of geological matter and is not a living being, therefore it cannot be considered a mammal. The key characteristic of a mammal is that it is a living animal.

B: An aggregating leukocyte is a type of white blood cell, which is a part of the immune system in animals. While leukocytes are found in mammals, they are not exclusive to them and therefore cannot be used to define what a mammal is.

D: The definition of a mammal goes beyond just having mass and occupying space, as all living things have these qualities. Mammals are a specific category of animals with distinct characteristics that differentiate them from other animals.

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that which has mass and occupies space

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