50+ Natural Selection and Adaptations worksheets for 5th Grade on ... - Free Printable

Let’s go through each question one by one and figure out the right answer.

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Question 1:
*A species has physically adapted by using camouflage. What is true?*

Camouflage means an animal looks like its surroundings so predators can’t see it easily.
- Option A says “it has blended in with its surrounding to avoid predators” → That’s exactly what camouflage does. ✔
- Option B: “played dead” → That’s a behavior, not camouflage. ✘
- Option C: hibernation → sleeping through winter, not related to blending in. ✘
- Option D: migration → moving to another place, not hiding by looking like the environment. ✘

✔ Correct answer: A

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Question 2:
*What is another term for inherited behaviors?*

Inherited behaviors are things animals are born knowing how to do — they don’t learn them.
- Option A: instinct → Yes! Instincts are inherited behaviors (like spiders spinning webs). ✔
- Option B: hibernation → that’s a specific behavior, not the general term. ✘
- Option C: natural selection → that’s how traits change over time in populations. ✘
- Option D: physical adaptation → that’s about body parts, not behaviors. ✘

✔ Correct answer: A

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Question 3:
*Why do some organisms, like butterflies, have bright colors?*

Bright colors in nature often mean “I’m dangerous or taste bad!” This warns predators to stay away.
- Option A: easier to find food → No, bright colors usually make you more visible, which isn’t helpful for finding food. ✘
- Option B: warn predators they are poisonous → YES! This is called warning coloration. ✔
- Option C: help fly long distances → Color doesn’t affect flight ability. ✘
- Option D: blend in → Bright colors do the opposite — they stand out! ✘

✔ Correct answer: B

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Question 4:
*How did amphibians adapt to their changing environment?*

Amphibians evolved from fish-like ancestors that lived in water. To live on land too, they needed new features.
- Option A: hibernated → Some do, but that’s not how they adapted to move onto land. ✘
- Option B: developed lungs and legs → YES! Lungs let them breathe air; legs let them walk on land. ✔
- Option C: fins and gills → Those are for water living — that’s what they had BEFORE adapting to land. ✘
- Option D: play dead → Not relevant to major environmental changes like moving to land. ✘

✔ Correct answer: B

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Question 5:
*A bear sleeps all winter. What is this form of adaptation called?*

Sleeping through cold months when food is scarce is called hibernation.
- Option A: playing dead → Nope, that’s pretending to be dead to trick predators. ✘
- Option B: camouflage → Blending in visually — not sleeping. ✘
- Option C: hibernation → Exactly! Bears hibernate in winter. ✔
- Option D: migration → Moving to warmer places — bears usually stay put and sleep. ✘

✔ Correct answer: C

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Question 6:
*What happens to unnecessary traits during the process of natural selection?*

Natural selection keeps helpful traits and gets rid of ones that aren’t useful over time.
- Option A: suddenly disappear → Traits don’t vanish overnight — it takes generations. ✘
- Option B: pass to some organisms but not others → True, but doesn’t say what happens to the trait overall. ✘
- Option C: gradually disappear → YES! If a trait isn’t helpful, fewer animals survive with it, so it fades away slowly. ✔
- Option D: pass to all future generations → Only if it’s helpful! Unnecessary traits get weeded out. ✘

✔ Correct answer: C

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Final Answer:
1. A
2. A
3. B
4. B
5. C
6. C