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PAST QUESTIONS WAEC

2020/2021 NECO Biology Questions and Answers For all Candidates

Neco Biology Questions
Written by Nkedugist

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2020 NECO Biology Question and Answers

The questions below are not exactly 2020 NECO Biology questions and answers but likely NECO Biology repeated questions and answers.

These questions are strictly for practice. The 2020 NECO Biology expo will be posted on this page on the day of the NECO Biology examination. Keep checking and reloading this page for the answers.

BIOLOGY PAPER II
Paper 1 will last for 1 hour
Attempt all questions from this section
Answer Paper 1 on your objective test answer sheet,
Use HB pencil throughout.

1. Which of the following organisms carries out photosynthesis?

(a) Amoeba

(b)Euglena

(c) paramecium

(d) plasmodium

(e) Volvox

2. Which of the following cell organelles traps sunlight energy in plants?

(a)Chloroplast

(b) Endoplasmic reticulum

(c) Mitochondrion

(d) Ribosome

(e) Vacuole

3. The following conditions are necessary for photosynthesis except

(a) Carbon(iv)oxide.

(b) chlorophyll

(c) light energy

(d) oxygen

(e) water

4. The tissue which connects a muscle to a bone is a known as____?

(a) cartiligae

(b) muscle fibre

(c) tendon

(d) ligament

(e) connecting fibre

5. A fruit formed from a single flower having several free carpels is called___?

(a) multiple fruits

(b) dry dehiscent fruit

(c) simple fruit

(d) aggregate fruit

9. If the anthers of a flower mature before the stigma, the condition is termed?

(a) epigyne

(b) hypogyny

(c) protogyny

(d) protandry

(e) perigyny

10. An instrument used in measuring the speed of wind is called__?

(a) barometer

(b)wind gauge

(c) wind vane

(d) an anemometer

(e) a hydrometer

11. Spirogyra reproduces vegetatively by?

(a) spore production

(b) fragmentation

(c) multiple fission

(d) budding

(e) binary fission

12. Which of the following instruments is used to demonstrate the response of roots and shoots to gravity?

(a) Klinostat

(b) Manometer

(c) Porometer

(d) Potometer

(e) Photometer

13. Milk protein is hydrolyzed by____?

(a) renin

(b) amylase

(c) lipase

(d) lactase

(e) pepsin

14. The rate of transpiration of a leafy shoot would be highest under?

(a) damp, cold, still air

(b) damp, warm, moving air

(c) dry, warm, moving air

(d) dry, cold, moving air

(e) dry, warm, still air

15. What is the name of the respiratory organ of the crab?

(a) Tubules

(b) Trachea

(c) Spiracles

(d) Lungs

(e) Gills

16. The two types of human tapeworm can be distinguished by the presence or absence of?

(a) scolex

(b) hook

(c) head

(d) sucker

(e) proglottis

17. Which of this is not a digestive enzymes?

(a) bile

(b) lipase

(c) maltase

(d) pepsin

(e) ptyalin

18. In a bakery, yeast is added to flour to make bread rise. This is possible because yeast produces?

(a) alcohol

(b) oxygen

(c) carbon dioxide

(d) energy

(e) ethanol

RECOMMENDED LINKS2020/2021 COMPREHENSIVE WAEC/NECO PAST QUESTION AND ANSWERS

BIOLOGY PAPER III
Paper 3 will last for 1 hour

(2aii)
The muscle that contracts to cause the joint to straighten is called extension. When one muscle is contracted, the other muscle from the other pair is always elongated. The biceps and triceps muscles work together to allow bending and straightening of the arm.

(2bi)
(i) Baking of bread.
(ii) Formation of acid.
(iii) Formation of diary product.

(2bii)
(i) Production of honey eg bees
(ii) Pollinating crop we use for food.
(iii) Some are scavengers and prevent decay.
(iv) Production of silk.
(v) Human food is spiked by cockroaches, ants and flies.

(2biii)
(i) Both has Ribosome.
(ii) Both has hybosomes.
(iii) Both has Nucleolus.
(iv) Both has Mitochondria and Golgi bodies.

4b)
TABULATE
Living thing:
-They can move
-They reproduce
-They grow
-They respond to stimulus
-They excrete
Non living:
-Most do not move
-They do not reproduce
-They do not grow
-They do not respond to stimulus
-They do not excrete

4c)
-Large cylindrical centrum
-Large neural canal
-Short tranverse process
-Long neural spine

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