The First Community That Forms on Bare Rock Often Has

question 9

Multiple Choice

The first community that forms on bare rock often has organisms such as:

• A)herbs and conifers.
• B)grasses and weeds.
• C)broad-leaf trees and conifers.
• D)lichens and mosses.
• E)woody shrubs and conifers.

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Definitions:

Quasi-experimental

A research design that resembles an experimental design but does not include random assignment of participants to conditions or orders of conditions.

Correlational Studies

Research methods that examine the relationship between two or more variables to determine if a change in one variable is associated with a change in another.

Cause-and-Effect Conclusions

Reasoning that establishes a relationship between actions or events such that one or more are the result of the other or others; a fundamental principle in establishing scientific proof.

Validity

The degree to which a test, tool, or study accurately measures or reflects what it is intended to measure.