
A diagram of a human sperm should include the following parts:
- Head: Contains the nucleus with genetic material.
- Acrosome: Contains enzymes that help in penetrating the egg.
- Midpiece: Contains mitochondria to provide energy for movement.
- Tail: Propels the sperm forward for fertilization.
(b) Explain the events which occur within a female Anopheles mosquito after it has sucked blood from a malaria patient.
If vector \( \mathbf{a} = 3 \hat{i} + 2 \hat{j} - \hat{k} \) \text{ and } \( \mathbf{b} = \hat{i} - \hat{j} + \hat{k} \), then which of the following is correct?