SSS 2 Biology Essay Exam Questions

First Term Essay Questions

1 Define the following terms with relevant examples
a. Annuals (b) Biennials (c) Perennials
1b. State two differences between red blood cells and white blood cells
2a. List three organs of excretion in mammals with the substance they excrete
2b. What is the use of haemoglobin?

3. Give five differences between photosynthesis and respiration

4a. Define diffusion
4b. List and explain four (4) factors affecting the rate of diffusion

5. Write short notes on the following:
a. Single circulation (b) Double circulation

6. With examples, explain the following feeding mechanisms
i. Absorbing mechanism
ii. Chewing mechanism
iii. Sucking mechanism
iv. Grinding mechanism
v. Tapping and absorbing mechanism

7. List two types of dension and explain them.
7b. Mention the four (4) types of mammalian explain each

Second Term Essay Questions

1a. State five adaptive features of each of the following group of organisms:
i. Xerophytes
ii. Hydrophytes
1b i. Define competition
bii. With relevant examples, explain two types of competition you know.

2a. Outline five(5) adaptive features of animals to aboreal habitat.
2b.Outline five (5) adaptive features of animal adaptation t o aquatic habitat.

3a. Define pollution and state four types of pollution.
3b. Mention five effects of land pollution.

4a. State five control measures of water pollution.
4b. List five water pollutants you know.

5a. Enumerate six effects of water pollution
5b. List four methods of water purification.

6a. Define conservation and mention two types of conservation.
6b. Enumerate five needs for conservation of natural resources in Nigeria.

7. List and explain five methods of conserving of the following resources:
i. Wildlife
ii. Soil

Third Term Essay Questions

1a. Make a well labeled diagram (8-10cm) of a named bisexual flower.
1b. State and clearly explain two (2) features of cross-pollinated flowers
1c. Briefly describe the menstrual cycle in women

2. Write short notes on the following; clearly explain with examples:
i. Auxiliary flower
ii. Complete flower
iii. Solitary flower
iv. Perigynous flower
v. Monocarpous flower

3a. Define pollination.
3b. Define geitonogamy
3c. Mention and explain the types pollination you know.
3d. Enumerate four(4) advantages of cross pollination in plants.

4. Discuss five (5) features of self-pollinated flowers.
5a. Neatly draw and label the longitudinal section of an egg.
5b. Using diagrams list and explain any two types ovaries in plants.

6a. Describe reproduction in fishes
6b. list and explain any five(5) parts of the female mammalian reproductive structure.

7. Describe the reproductive system of reptiles and birds. Use diagrams to buttress your points.

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