Identify and define the following biological terms: Oxygen debt, Sporangium, Zygospore, Fungi, Eye piece lens, Condenser, Diaphragm, Population.

d) Oxygen debt is the amount of extra oxygen required by the body after strenuous exercise to oxidize the accumulated lactic acid and restore ATP and creatine phosphate levels.

20. a)

• P: Sporangium
• Q: Zygospore

b) The bread mould belongs to the Kingdom Fungi.

21. i) Eye piece lens: Magnifies the image formed by the objective lens, allowing the observer to view the specimen.

• ii) Condenser: Focuses light from the light source onto the specimen, illuminating it evenly.
• iii) Diaphragm: Controls the amount of light passing through the specimen, adjusting brightness and contrast.

22. i) Population: A group of individuals of the same species living in the same geographical area at the same time, capable of interbreeding.