Life Cycles of Some Animals
Section A · Multiple choice 8 marks
1. Look at Table 1. Which two animals both have four stages in their life cycles?1 mark
| Animal | Stages in life cycle | Name of young | Does the young look like the adult? | Where the young lives | Where the adult lives |
|---|---|---|---|---|---|
| Chicken | 3 | chick | Yes | on land | on land |
| Frog | 3 | tadpole | No | in water | on land and in water |
| Grasshopper | 3 | nymph | Yes | on land | on land |
| Butterfly | 4 | caterpillar | No | on land (on leaves) | flies in the air |
| Mosquito | 4 | wriggler | No | in water | flies in the air |
| Mealworm beetle | 4 | mealworm | No | on land | on land |
2. How many of the animals in Table 1 have a pupa stage in their life cycles?1 mark
3. Which animal in Table 1 has a young that lives in water and an adult that flies in the air?1 mark
4. Which two animals in Table 1 have young that look like their adults?1 mark
5. Figure 2 shows four pictures of a butterfly in different stages. Which choice puts the stages in the correct order, starting with the egg?1 mark
6. A caterpillar eats a lot of leaves, grows bigger and sheds its outer covering. Which stage is it in?1 mark
7. Which stages of the mosquito live in water?1 mark
8. Which sentence about the pupa stage is correct?1 mark
Section B · Show what you know 12 marks
9. Figure 3 shows the life cycles of two animals, X and Y. State one similarity and one difference between the two life cycles.2 marks
10. Ravi found a tadpole in a pond. (a) Name the adult animal the tadpole will become. (b) State one way the tadpole is different from the adult.2 marks
11. Kim says, "A grasshopper has a pupa stage." Is she correct? Give a reason for your answer.2 marks
12. The stages of a mosquito are listed below in the wrong order: adult, pupa, egg, larva. Write them in the correct order, starting with the egg.2 marks
13. Write each of these animals in the correct column of Table 2: butterfly, frog, mosquito, chicken.2 marks
| Animals with 3 stages | Animals with 4 stages |
|---|---|
| | |
14. Mei Ling watched a butterfly grow. Read her notes in Table 3. (a) Which stage was the animal in from Day 11 to Day 18? (b) Explain why the leaves stayed untouched on these days.2 marks
| Days | What Mei Ling saw |
|---|---|
| Day 1 to Day 10 | The caterpillar ate many leaves. It grew longer and fatter. It shed its skin three times. |
| Day 11 to Day 18 | It hung from a twig inside a hard case. It did not move. The leaves stayed untouched. |
| Day 19 | A butterfly came out of the case and flew away. |