1. 7A multiple-choice extension test: answers
Year 7 multiple-choice main test: answers 7D Variation and classification
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

2. The key can be used to identify different animals.
Question 1
The key can be used to identify different animals.
1 Has wings. go to 2
Does not have wings. animal A
2 Has feathers. animal B
Does not have feathers. go to 3
3 Has four wings. animal C
Has two wings. animal D
Choose the animal A B C or D in the key that is a bat.
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

3. Fish, amphibians and reptiles are all groups of... A) arthropods
Question 2
Fish, amphibians and reptiles are all groups of...
A) arthropods
B) invertebrates
C) mammals
D) vertebrates
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

4. Question 3
Choose the group A B C or D that has scaly skin and lays its eggs in water.
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

5. An animal that has scaly skin but cannot lay its eggs in water is...
Question 4
An animal that has scaly skin but cannot lay its eggs in water is...
A) an amphibian
B) a bird
C) a fish
D) a reptile
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

6. An animal that has feathers and lays its eggs on land is...
Question 5
An animal that has feathers and lays its eggs on land is...
A) an amphibian
B) a bird
C) a fish
D) a reptile
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

7. Question 6
An animal that has no scales and whose eggs are fertilised in water is...
A) an amphibian
B) a bird
C) a fish
D) a reptile
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

8. Another word for a characteristic is... A) character B) feature
Question 7
Another word for a characteristic is...
A) character
B) feature
C) similarity
D) type
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

9. The statements are all about classification.
Question 8
The statements are all about classification.
Choose the statement that is not correct.
A) Classification is a way of grouping plants and animals.
B) Each group is divided into smaller groups.
C) Extinct plants and animals cannot be put into the groups.
D) Similar living things are put in the same group.
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

10. Vertebrates are the only group of animals with... A) a backbone
Question 9
Vertebrates are the only group of animals with...
A) a backbone
B) a head
C) segments
D) a shell
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

11. Choose the part A B C or D that is an abdomen.
Question 10
Choose the part A B C or D that is an abdomen.
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

12. Question 11
Choose the group A B C or D that has about the same number of species as all the myriapods (many legs), crustaceans and spiders put together.
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

13. The number of pods in this sample containing four seeds is... A) 5
Question 12
The number of pods in this sample containing four seeds is...
A) 5
B) 8
C) 9
D) 15
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

14. The most frequent number of seeds in a pod in this sample is... A) 5
Question 13
The most frequent number of seeds in a pod in this sample is...
A) 5
B) 8
C) 9
D) 15
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

15. Choose the part A B C or D that is an antenna.
Question 14
Choose the part A B C or D that is an antenna.
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

16. Choose the group A B C or D where a fish fits.
Question 15
Choose the group A B C or D where a fish fits.
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

17. Choose the group A B C or D where butterflies fit.
Question 16
Choose the group A B C or D where butterflies fit.
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

18. Choose the person A B C or D that is Sheila’s grandson.
Question 17
In the family tree the people labelled A–D inherited an eye problem called astigmatism.
Choose the person A B C or D that is Sheila’s grandson.
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

19. Choose the person A B C or D that had two children with astigmatism.
Question 18
In the family tree the people labelled A–D inherited an eye problem called astigmatism.
Choose the person A B C or D that had two children with astigmatism.
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

20. Choose the person A B C or D that had two boys.
Question 19
In the family tree the people labelled A–D inherited an eye problem called astigmatism.
Choose the person A B C or D that had two boys.
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers

21. Question 20
In the family tree the people labelled A–D inherited an eye problem called astigmatism.
Choose the person A B C or D that is a boy who has a sister without astigmatism.
© Cambridge University Press 2003, 2006, D multiple-choice main test: answers