In an Imaginary Universe, Astronomers Find That There Are Thousands

question 87

Multiple Choice

In an imaginary universe, astronomers find that there are thousands of galaxies within a few million light years, but beyond those galaxies there is nothing but empty space. Such a universe would be:

• A) isotropic and homogeneous
• B) isotropic but not homogenous
• C) homogeneous but not isotropic
• D) neither homogeneous nor isotropic
• E) lacking any evidence for the Big Bang

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Definitions:

Ethologists

Scientists who study the behavior of animals in their natural environment to understand universal and species-specific behaviors.

Biologists

Scientists who study living organisms and their interactions with each other and their environments.

Ventricles

Cavities within the brain that produce and contain cerebrospinal fluid, important for protecting and nourishing the brain.

Meninges

The three layers of protective tissue called the dura mater, arachnoid mater, and pia mater that encase the brain and spinal cord.