5th Grade Topic 2, lesson 4 pre-assessment

Which of the following is an example of a variation in physical traits among offspring?

• a. dolphins hunt fish in different ways

• b. all lions have sharp teeth

• c. a grizzly bear and a black bear have different sized paws

• d. tigers have different stripe patterns

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   This form of an inherited trait masks the other forms of the same trait.

• a. recessive

• b. dominant

• c. hidden

• d. active

How does the process of natural selection work?

• a. The alpha animal chooses who will survive

• b. favorable traits are transmitted through generations.

• c. unfavorable traits are transmitted through generations.

• d. nothing happens, all animals survive

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What process is being shown in this image?

• Variation
• Natural Selection
• Selective Breeding
• Homeostasis

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The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?

• Dark moth
• Light moth
• Both will be equally successful
• Neither will be successful

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Darwin wrote that organisms with traits that are best suited to the environment will ________________

• increase in number
  
• become extinct
  

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These moths are all the same species. The differences between their wings is an example of ________________

• Natural Selection

• Variation

• Homeostasis

• Extinction

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This makes an organism more suited to its environment

• species

• lifespan

• adaptation

• mutation

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If Easter eggs were living species of organisms, their different colors would be considered:

• Adaptations

• Variations

• Different species

• Extinct species

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Why is the mouse population changing over time?

• The light mice can reproduce more successfully than the dark mice
• The hawks eat more dark mice than light mice because the dark mice taste better
• The hawks eat more light mice than dark mice because they can see the light mice more easily
• The hawks eat more dark mice than light mice because they can see the dark mice more easily

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