NECO Biology Answers 2023 (Obj-Essay) Questions is Out

NECO Biology Questions & Answer 2023 Released.

The Neco biology 2023 answers are now available. The National Examination Council (NECO), Senior School Certificate Examination (SSCE) Biology paper will be written on Friday 21st July 2023.

The Neco biology exam will comprise Papers III & II: Objective & Essay which will commence at 10.00 am to end at 12.30 pm. That means the examination will last for two hours thirty minutes (2hrs 30mins) only.

In this post, we will be posting samples of the neco biology questions for candidates that will participate in the examination for practice purposes.

Note that below is the questions from Neco past questions and answers that we feel are likely questions for GCE preparation.

Neco Biology Essay Questions 2023.

Section II [Theory]:
Answer any four questions from this section. Each question carries 10 marks.
Write your answers in the answer booklet.

1. (a) (i) State two main functions of roots.
(ii) Make a drawing 8-10cm long of the transverse section of the stem of a dicotyledonous plant and label fully.
(b) In a tabular form, state three differences between the functions of vascular tissues of plants and the skeleton of mammals.
(c) State: (i) two functions of xylem tissues;
(ii) one function of phloem tissues.
(d) What is meant by the term tropism?

2. (a) What is reproduction?
(b) In a tabular form, state six differences between sexual reproduction and
(c) asexual reproduction.
(d) State three advantages of sexual reproduction.
(e) (i) Describe the female reproductive structure of a flowering plant.
(ii) List two factors necessary for the germination of seeds.

3. (a) (i) What is pollution?
(ii) Name three water pollutants.
(iii) State five harmful effects of sulfur dioxide in the atmosphere.
(b) (i) Explain the term population.
(ii) Explain how a pitfall trap is used to measure the population size of organisms in a habitat.

4. (a) In a garden, it was observed that the leaves of some vegetables were molting and had turned yellow, purple, and orange. There was stunted growth of mostly the lower leaves and the vegetables possessed a weak stem. List the elements likely to be deficient in the garden soil.
(b) State three methods that can be adopted by a farmer to improve soil fertility for improved yield.
(c) State four similarities and four differences between the alimentary canal of a bird and a cockroach.
(d) List four disorders of the alimentary canal of humans.

5. (a) (i) Bacteria reproduce asexually by dividing in two. What term is used for this form of asexual reproduction?
(ii) What do bacteria form when environmental conditions become unfavourable?
(iii) What does the term pathogenic mean in relation to bacteria?
(b) (i) Name an organ in the human body, other than the kidney, in which excretion takes place.
(ii) In which part of the flower is pollen produced?
(iii) In which part of a flower does a seed form?
(c) Name another member of the kingdom to which Rhizopus belongs, other than yeast, and explain how it is of benefit to humans.

6. (a) (i) What is courtship behaviour?
(ii) Outline five benefits derived from the exhibition of courtship behaviour.
(b) Describe briefly courtship behavior in the Agama lizard.
(c) Describe briefly the mammalian placenta.

7. (a) Explain briefly the role of the skin as a sensory organ.
(b) Describe briefly the vegetation of Tropical Rain Forest.
(c) List five animals that inhabit the Tropical Rain Forest.

8.

Neco Biology Objective Questions.

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