Science 8c Review

Why do animals go extinct?

• Animals go extinct solely due to disease.
• Animals go extinct because they are too large.
• Animals go extinct due to habitat loss, climate change, pollution, overhunting, and invasive species.
• Animals go extinct due to natural selection only.
• Animals go extinct because they cannot adapt to their changing habitat.

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Match the animal to the habitat where the animal would be the least likely to be eaten by a predator.

• Lush Rain Forest

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• Desert

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• Swamp

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• Forest after a Forest Fire

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• Artic

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Look at the number of animals collected and released in Sarah's neighborhood in one year's time. Many of these animals compete for the same food source. Which animal population had the greatest decrease due to increased food population?

• Animal A

• Animal B

• Animal C

• Animal D

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Match the adaptation with how it helps the animal survive.

• They can catch and tear apart their prey.

• Giraffes have long necks.

• It helps them blend into their environment.

• Hawks have sharp beaks.

• They protect their wings and body.

• Quails have speckled eggs.

• It allows them to reach high leaves for food.

• Ladybugs have hard wing coverings.

• Keeps them warm during seasonal changes.

• Polar bears have thick fur.

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Why do some birds and insects migrate thousands of miles to warm places like Mexico?

• They migrate to find food and paces to lay their eggs in warmer climates.

• They migrate to escape predators in colder regions.
• They migrate to find new nesting materials in urban areas.
• They migrate to follow seasonal weather patterns in their local habitats.

Bears hibernate for​ (a)   in (b)   climates and ​ (c)   in ​ (d)   climates, like Florida.

• colder
• longer
• shorter
• warmer
• hotter
• briefly
• constantly

Match the plant to its adaptation.

• Toxins deter predators

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• Thorns deters predators

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• Stops salt water from going in its roots

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• Eats live prey

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