NECO Biology Questions and Answers 2021/2022 [Theory & OBJ Expo]

Updated NECO Biology Questions and Answers 2021: This is an online Solution to NECO Biology Questions 2021 and sample answers expos for Theory & OBJ papers.

This solution is made available so as to help NECO candidates looking for NECO Biology Questions and Answers 2021 expo solution for paper 1 and paper 2.

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I must also let you know that this NECO 2021Biology Questions and Answers expo solution is free for all NECO candidates

NECO Biology OBJ & Theory Questions and Answers 2021

Have you ever wondered and thought of how you can possibly write this NECO Biology exam and come out with a very good grade?

If you say yes, then this is the very best NECO Biology Questions and Answers 2021 solution material that is highly recommendable to all NECO Candidates.

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Please, I will advise candidates to take their time and follow this solution material step by step because it will really them to pass this NECO Biology exam right now.

NECO Biology Exam Guide: once you get to your exam venue, make sure you locate the exam Hall.

Once you get the exam paper, make sure you pray.

After praying to God, read through the exam instructions.

Now, make sure you fill in your candidate’s exam details which include exam Number, full name, Center number, etc.

NECO Biology OBJ Questions and Answers Expo 2021

Below are some sample NECO 2021 Biology questions and answers to start with. Note, they are just sample questions provided to give you insight on the kind of questions you should be expecting.

Take note of them, check their correct options, and keep them in memory in case you see any in the exam. We may post the real and correct answers for 2021 anytime. So keep checking this page.

1. Which of these is a mixed gland?

  1. Pituitary
  2. Adrenal
  3. Pancreas
  4. Ovary

Correct Answer is Pancreas

2. ______ are Tissue which cells have lost the capacity of cell division?

  1. Meristematic tissue
  2. Permanent tissue
  3. Both Mesristmatic and Permanent tissue
  4. None of these

The Correct Answer is Permanent tissue

3. Why do wooden doors get difficult to open or close during Rainy Season? because of;

  1. Imbibition
  2. Plasmolysis
  3. Diffusion
  4. Osmosis

Correct Answer is Imbibition

4. Agrostology can be define as the study of__________?

  1. Seed of oil
  2. Crop
  3. Grass
  4. Fruits

Correct Answer is Grass

5. How many pairs of Peripheral nerves are in man________?

  1. 41
  2. 42
  3. 43
  4. 44

 Correct Answer is 43

6. What is found in eukaryotic cells that are not prokaryotic?

  1. Nucleus
  2. Cytoplasm
  3. Ribosomes
  4. DNA

Correct Answer is A) Nucleus

7. The total salt content in the blood is around_____?

  1. 85 to 1.9%
  2. 85 to 11.9%
  3. 85 to 2.9%
  4. 85 to 0.9%

Correct Answer is : D) 0.85 to 0.9%

8. Which of these hormones accelerate the rate of a heartbeat?

  1. adrenaline
  2. acetylcholine
  3. thyroxine
  4. pituitrin

Correct Answer is A) adrenaline

9. The human heart is also Known as….?

  1. Neurogenic heart
  2. Myogenic heart
  3. Pulsating heart
  4. Ampullary heart

Correct Answer is: B) Myogenic heart

10. The father of Zoology is__________?

  1. Darwin
  2. Aristotle
  3. Lamark
  4. Theophrastus

 The Correct Answer is: B) Aristotle

11. Spermology is the study of_________?

  1. Fruit
  2. Seed
  3. Grain
  4. Flower
  5. Leaf

The Correct Answer is: B) Seed

12. Which of this doesn’t have a red blood cell?

  1. Frog
  2. Earthworm
  3. Snake
  4. Peacock

The Correct Answer is: B) Earthworm

13. Which of the following does Chambered heart occur in______?

  1. Leech
  2. Earthworm
  3. Snail
  4. Cockroach

Correct Answer is: D) Cockroach

14.The Amount of energy released by 1 gram of glucose is equal to to_____?

  1. 6 kcal
  2. 4 kcal
  3. 5 kcal
  4. 3kcal

Correct Answer is: B) 4 kcal

15. Why is the corner of the cells of a collenchyma tissue in the plant thickened?

Because of the deposition of;

  1. Lignin and suberin
  2. Suberin and cutin
  3. Cellulose and pectin
  4. Chitin and lignin

Correct Answer is C) Cellulose and pectin

NECO Biology Theory Answers to Questions 2021

Below are awesome tips and instructions for the the NECO Biology theory questions and answers 2021.

Please kindly follow the instructions below to answer any NECO biology Theory question, then follow these steps:

  • Read and understand the instructions on the paper.
  • Make sure you read a question twice before answering.
  • Make sure you understand what the question is about before answering.
  • Let your answer be very short, simple and explanatory.


Download Free 2021 NECO Syllabus for all Subjects below. Select each and download NECO Biology Syllabus here

Please kindly use this NECO Biology Questions and answers 2021 as a hint and instruction to answering every other questions.

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24 minutes ago

What is diminishing return

2 days ago

Hi…. why arent the questions up to 60???

Osaze Airthenbuwa
Osaze Airthenbuwa
6 days ago

I need theory pls

Adetayo Abraham
Adetayo Abraham
10 days ago


Bolanle arike
Bolanle arike
12 days ago

Neco questions

Nzorov Emmanuel
Nzorov Emmanuel
13 days ago

The answers contain here true

Iwalokun samuel
Iwalokun samuel
15 days ago

Is it the true answer

Moses damilola
Moses damilola
18 days ago

I need the theory

Reply to  Mentor
17 days ago


Moses damilola
Moses damilola
18 days ago

Pls is the questions right

Reply to  Moses damilola
12 days ago


Eze izuchukwu
Eze izuchukwu
19 days ago

I need NECO biology OBJ and theory

Last edited 19 days ago by Eze izuchukwu
23 days ago

I need assistance for neco science subjects

1 month ago

I need theory and objectives

1 month ago

Is It The Real Question For 2021 Neco

Olasupo Toheeb
Olasupo Toheeb
2 months ago

I need theory and objectives

Ezeh Helen chikamso
Ezeh Helen chikamso
Reply to  Olasupo Toheeb
1 month ago

I need the neco theory

8 months ago