Question 1
Name the branch of biology that deals with the study of zooplanktons
Answer
Zoology
Question 2.
Name a cell structure responsible for the following functions in a cell
- Mechanical support
- Site of synthesis of RNA
Answer
- Cell wall
- Nucleolus
Question 3
The following diagram shows a feeding relationship in an ecosystem.
- From the diagram, write down a food chain with crocodile as the tertiary consumer
- Which of the above organism would you expect to have the highest population
- Give reason for your answer in (b) above
Answer
- Microscopic plants → Small fish → large fish → Crocodile
- Microscopic plants
- They are producers
Question 4
The diagram below shows part of alimentary canal of a mammal.
-
Name the parts labeled.
A
C - State the function of the part labeled B
Answer
-
A - Duodenum
C - Oesophagus / gullet - - Temporary storage of faeces
Question 5
- Define accommodation of the eye.
- State two causes of hypermetropia in humans
Answer
- Ability of the eye to form and focus sharp images from near or distant objects on the retina
-
– Shorter eye ball;
– Thin / weak lens;