Advanced level 2024 CASPA mock biology 3

Advanced level 2024 CASPA mock biology 3

Advanced level 2024 CASPA mock biology 3

1. a) For each of the eight specimens(A-H) provided, state
I. The major group(phylum)
II. The subgroup (class)
III. The niche of each specimen
Use the columns in the table below to enter your answers.
Specimen Phylum Class Habitat
A B C D E F G H
8 marks
b) Excluding colour and size draw a dichotomous key to separate the specimens A to H
8 marks
C) Give four observable structural differences between specimens A and H.

…………
4 marks
Total: 20 marks
2. Examine specimen A and H keenly.
a) Give the external features of specimens A and H that make them adapt to their respective modes of life or habitats
Specimen A

Specimen H

8 marks
b) Describe the life cycle of specimen B with diagrams if necessary.
7 marks
c) Give the economic importance of specimen E
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5 marks
Total 20 marks
3. a)Dissect and display the alimentary canal of the bird provided. Make a well annotated drawing of the parts of the system
dissected.
15marks
b) Compare the digestive system of a bird with that of a fish.
Bird Fish
10 marks
Total 25 marks
4. Osmosis occurs in living tissues.
a) Investigate the movement of water when the potato tuber provided is immersed in solution W, Y and Z provided as well