Unit 2: Evolution Test

Unit 2: Evolution Test

Assessment

Flashcard

Biology

9th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the bottleneck effect?

Back

A change in allele frequency that follows a dramatic reduction in population size, leading to a loss of genetic diversity.

2.

FLASHCARD QUESTION

Front

What is binomial nomenclature?

Back

A naming system developed by Carolus Linnaeus that gives each species a two-part scientific name.

3.

FLASHCARD QUESTION

Front

What type of natural selection keeps the most common clutch size at four eggs in robins?

Back

Stabilizing Selection, which favors intermediate traits and reduces variation.

4.

FLASHCARD QUESTION

Front

What are fossils?

Back

Preserved remains or traces of ancient organisms that provide evidence of past life.

5.

FLASHCARD QUESTION

Front

What characterizes a mass extinction?

Back

Species go extinct because their environment no longer supports them, drastically altering ecosystems.

6.

FLASHCARD QUESTION

Front

What is genetic drift?

Back

A mechanism of evolution that involves random changes in allele frequencies in a population.

7.

FLASHCARD QUESTION

Front

What is the founder effect?

Back

A phenomenon that occurs when a small group of individuals establishes a new population, leading to reduced genetic variation.

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