1992 WAEC SSCE Biology Past Questions

1992

Which of the following mineral salts is a trace element?

1992

Example Specimens List:A: AppleB: Legume Pod (e.g., Bean pod)C: CoconutD: TomatoE: Winged Seed (e.g., Maple seed)(a) (i) identify specimens A. B, C, D and E (ii) To which class of fruits does each specimen belong? (iii)…

1992

Name one example of symbiotic relationship in animals

1992

List three harmful effects of noise pollution.

1992

Name the blood vessel that carries digested food to the liver.

1992

Name the physical processes responsible for the following (a) entry of carbon dioxide into the leaf through the stomata (b) entry of soil water into the root hair (c) shrinkage of plant tissue in hypertonic sugar solutio…

1992

Explain briefly how a large quantity of dead organic materials dumped into a river can be harmful to aquatic life.

1992

List three uses of fibres to plants.

1992

(a) State two ways in which the mesophyll layer of the leaf is adapted for photosynthesis (b) In the test for starch in a leaf, why is the leaf boiled in warm alcohol?

1992

Study the diagram below and use it to answer questions (a)-(d)(a) Name the set-up illustrated in the diagram (b) What is the apparatus used for? (c) What is contained in the part of the apparatus labelled IV? (d) From wh…

1992

What types of placentation are represented by diagrams I and II?

1992

Which of the labellled parts represent the (a) female reproductive system (b) petal?

1992

List of Specimens:Specimen A - Apple: An example of a pome, a type of simple fleshy fruit.Specimen B - Pea Pod: Representing legumes, a type of simple dry fruit that splits open at maturity.Specimen C - Maple Seed: A sam…

1992

(a) Explain the following terms: (i) voluntary action. (ii) involuntary action.(b) State three functions each of: (I) insulin; (ii) auxins.(c) Describe an experiment to show that plant roots respond positively to gravit…

1992

(a) Mention six ways by which the government is contributing towards self-sufficiency in food production(b) List five methods Of conserving soil fertility.(c) Explain how three named agricultural practices can destroy th…

1992

(a) Describe briefly the female reproductive system of a named mammal. (A diagram is essential).(b) List three differences between reproduction in mammals and in amphibians.(c) Describe the structure and function of the…

1992

(a) List the principal sense organs in mammals and their functions.(b) (i) Describe the eye defect in which only distant objects are seen clearly. (ii) How can it be corrected? Illustrate your answer with labelled diagr…

1992

The first scientist to describe the cell was

1992

1992 WAEC SSCE Biology Past Questions

Which of the following mineral salts is a trace element?

Example Specimens List:A: AppleB: Legume Pod (e.g., Bean pod)C: CoconutD: TomatoE: Winged Seed (e.g., Maple seed)(a) (i) identify specimens A. B, C, D and E (ii) To which class of fruits does each specimen belong? (iii)…

Name one example of symbiotic relationship in animals

List three harmful effects of noise pollution.

Name the blood vessel that carries digested food to the liver.

Name the physical processes responsible for the following (a) entry of carbon dioxide into the leaf through the stomata (b) entry of soil water into the root hair (c) shrinkage of plant tissue in hypertonic sugar solutio…

Explain briefly how a large quantity of dead organic materials dumped into a river can be harmful to aquatic life.

List three uses of fibres to plants.

(a) State two ways in which the mesophyll layer of the leaf is adapted for photosynthesis (b) In the test for starch in a leaf, why is the leaf boiled in warm alcohol?

Study the diagram below and use it to answer questions (a)-(d)(a) Name the set-up illustrated in the diagram (b) What is the apparatus used for? (c) What is contained in the part of the apparatus labelled IV? (d) From wh…

What types of placentation are represented by diagrams I and II?

Which of the labellled parts represent the (a) female reproductive system (b) petal?

List of Specimens:Specimen A - Apple: An example of a pome, a type of simple fleshy fruit.Specimen B - Pea Pod: Representing legumes, a type of simple dry fruit that splits open at maturity.Specimen C - Maple Seed: A sam…

(a) Explain the following terms: (i) voluntary action. (ii) involuntary action.(b) State three functions each of: (I) insulin; (ii) auxins.(c) Describe an experiment to show that plant roots respond positively to gravit…

(a) Mention six ways by which the government is contributing towards self-sufficiency in food production(b) List five methods Of conserving soil fertility.(c) Explain how three named agricultural practices can destroy th…

(a) Describe briefly the female reproductive system of a named mammal. (A diagram is essential).(b) List three differences between reproduction in mammals and in amphibians.(c) Describe the structure and function of the…

(a) List the principal sense organs in mammals and their functions.(b) (i) Describe the eye defect in which only distant objects are seen clearly. (ii) How can it be corrected? Illustrate your answer with labelled diagr…

The first scientist to describe the cell was

The conditions that ensure successful exchange of gases in multicellular organisms include the following except

Which of the following blood vessels carries oxygenated blood into the heart?