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Evidence of Evolution

Evidence of Evolution

Assessment

Flashcard

Science

9th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

Student preview

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15 questions

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1.

FLASHCARD QUESTION

Front

What is an analogous structure?

Back

An analogous structure is a body part that shares a similar function but not a common evolutionary origin. For example, the wings of birds and insects serve the same purpose (flight) but evolved independently.

2.

FLASHCARD QUESTION

Front

What is a homologous structure?

Back

A homologous structure is a body part that is similar in structure and position but may serve different functions, indicating a common evolutionary ancestor. For example, the forelimbs of humans, whales, and bats.

3.

FLASHCARD QUESTION

Front

What are vestigial structures?

Back

Vestigial structures are body parts that have lost their original function through evolution. An example is the tailbone in humans, which is a remnant of a tail from our ancestors.

4.

FLASHCARD QUESTION

Front

What is natural selection?

Back

Natural selection is the process by which organisms that are better adapted to their environment tend to survive and reproduce more than those that are less adapted.

5.

FLASHCARD QUESTION

Front

What is the significance of the tailbone in humans?

Back

The tailbone is a vestigial structure that indicates our evolutionary history, showing that our ancestors had tails.

6.

FLASHCARD QUESTION

Front

What does it mean for species to be closely related?

Back

Species that are closely related share a recent common ancestor and have similar genetic, anatomical, or behavioral traits.

7.

FLASHCARD QUESTION

Front

What is the difference between homologous and analogous structures?

Back

Homologous structures arise from a common ancestor and may serve different functions, while analogous structures serve similar functions but do not share a common evolutionary origin.

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