Page 4 - ACE YR IGCSE A TOP APPROACH TO BIO

6 The chart shows a dichotomous key for an animal.

Animal

Have legs No legs
T

Have feathers No feathers
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U

Has scales No scales
V W

Which class of vertebrates do organisms U, V, T and W belong to?
U V T W

A fish birds amphibians reptiles

B birds amphibians fish reptiles
C birds reptiles fish amphibians

D amphibians birds reptiles fish

7 The table shows the differences between four groups of kingdoms which are the plant kingdom,
fungi kingdom, prokaryotes (bacteria) kingdom and protoctists (single-cell organisms)
kingdom. Which of the following correctly describes the feature of each kingdom?

plant fungi prokaryotes protoctists

A have large vacuole no vacuole no cell wall have cell wall
B cell wall with cell wall with chitin no nucleus have nucleus
cellulose

C cell wall with cell wall with have nucleus no nucleus
chitin cellulose
D no vacuole have large vacuole have cell wall no cell wall

8 The diagram shows some leaves and flowers Which of the following correctly describes
of different plants. monocotyledon plants?

number description
A 1 and 4 parallel veins and flowers
with 4 petals
B 3 and 5 network veins and flowers
with 6 petals
C 1 and 5 parallel veins and flowers
with 6 petals

1 2 3 4 5 D 2 and 4 network veins and flowers
with 4 petals

Cambridge IGCSE
TM
2 Ace Your Biology

Chapter 1.indd 2 30/03/2022 3:07 PM