5.1 Changes in Populations Review

Front

True or False: Individual organisms can change their traits to help them survive in their environment?

Back

False

Front

What is an adaptation in biology?

Back

A physical or behavioral trait that helps an organism survive and reproduce in its environment.

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Front

What explains the increase in beak size in finches on Daphne Island from 1976 to 1978?

Back

Finches with larger beaks were better able to survive and reproduce, leading to more finches with larger beaks.

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NGSS.MS-LS4-4

Front

What happens to the average beak size when many seed-producing plants die in a hot year?

Back

The average beak size will decrease.

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Front

Which finch variety would you expect to see a higher percentage of after many seed-producing plants die?

Back

Species A: eats mostly large hard seeds.

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Front

Define 'natural selection'.

Back

The process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is the role of competition in population changes?

Back

Competition for resources can lead to changes in population sizes as some individuals survive and reproduce better than others.

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Front

Explain the concept of 'survival of the fittest'.

Back

It refers to the idea that individuals best suited to their environment are more likely to survive and reproduce.

Tags

NGSS.MS-LS4-4

Front

What is a niche in ecology?

Back

A niche is the role or function of an organism or species within an ecosystem.

Front

How can environmental changes affect population dynamics?

Back

Environmental changes can alter resource availability, leading to shifts in population sizes and species composition.

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