Evolution and adaptation

Worksheet: Evolution and adaptation

Name:Class:

Answer the questions.

1. Which feature helps a camel survive in a hot, dry desert?
   a) Fat stored in its humpb) Thick layer of blubberc) Webbed feet for swimmingd) White fur for hiding
2. Why do polar bears have thick fur and a layer of fat?
   a) To climb trees easilyb) To stay cool in the heatc) To stay warm in the coldd) To swim faster in rivers
3. A cactus has spines and a thick stem that stores water, which helps it live in a desert.
   a) Trueb) False
4. What are fossils?
   a) Living plants in old forestsb) Remains or traces of living things from long agoc) Rocks made by volcanoes onlyd) Tools made by early people
5. Fossils are usually found in which type of rock?
   a) Crystal rockb) Igneous rockc) Molten rockd) Sedimentary rock
6. What can fossils tell us about living things of the past?
7. All fossils come from animals that are still alive today.
   a) Trueb) False
8. Puppies in one litter look similar but not identical. What is this difference called?
   a) Adaptationb) Extinctionc) Fossilisationd) Variation
9. Why do offspring usually look like their parents?
   a) They copy their parents' habitsb) They eat the same foodc) They inherit features from their parentsd) They live in the same place
10. What word means passing on features from parents to offspring?
11. In natural selection, which animals are more likely to survive and have young?
    a) The oldest onesb) The ones that are the biggest alwaysc) Those best suited to their environmentd) Those chosen by humans
12. Some moths are darker than others. On dark tree bark, which moths are more likely to survive?
    a) Both survive equally whatever the colourb) Dark moths, as birds find them harder to seec) Neither, since moths cannot hided) Pale moths, as birds see them easily
13. Over many generations, what happens to helpful features in a species?
    a) They become more commonb) They change in one lifetimec) They disappear quicklyd) They stay rare forever
14. Natural selection happens because individual animals decide to change their bodies.
    a) Trueb) False
15. Which scientist is famous for his theory of evolution by natural selection?
    a) Albert Einsteinb) Charles Darwinc) Isaac Newtond) Louis Pasteur
16. Darwin studied finches with different beak shapes on which islands?