What Is the Local Group

question 39

Multiple Choice

What is the Local Group?

• A) A group of about 100 stars within 100 light-years of the Sun,which appears to have been formed in a star cluster at about the same time from similar material
• B) The planets Mars,Earth,and Venus,which are similar in physical properties and in orbital positions around the Sun
• C) A group of galaxies orbiting around the Andromeda Galaxy M31,all completely separate from the Milky Way
• D) A cluster of about 40 galaxies of which the Milky Way is a member

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Definitions:

Interdependent

Mutually reliant on each other; a situation where entities depend on one another for resources, support, or functioning.

Environmental Resistance

The sum of environmental factors that limit the growth, distribution, or population size of an organism.

Biotic Factors

Living components of an ecosystem, such as plants and animals, that influence the structure and function of the ecosystem.

Carrying Capacity

The maximum number of individuals or species an environment can support without degradation.