NECO Biology 2021 Answers

NECO Biology 2021 Answers, neco Biology 2021, Neco Biology Answers 2021. neco 2021 Biology obj, 2021 neco Biology obj and Theory Answers, neco Biology 2021, Many NECO candidates find it difficult to answer the NECO 2021 Biology obj and theory question and Answers correctly due to not understanding the questions. I will show you the best way to answer NECO Biology Obj and Theory questions and make a good NECO result in your Biology examination.

NECO Biology Questions and Answers 2021. Objective and theory answers (Expo), for the National examination council (June/July 2021. NECO Biology Objective and Theory Answers. This post will provide you with repeated questions as well as the answers to your NECO Biology Biology exam. This post will help you understand the NECO Biology objectives and answers.


2021-NECO-Biology-ANSWERS
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Objective & Essay – Biology – 10:00am-1:00pm

BIOLOGY OBJ:
1-10: ECCECDBBBD
11-20: BCAEBECEEB
21-30: EECDCDCECE
31-40: ADBDCCCCBA
41-50: CDDDEADCEA
51-60: EBDADACBBB


NOTE: YOUR ARE TO ANSWER THREE(3) QUESTIONS ONLY.
———COMPLETED———


(1a)
Animals move from one place to another
-In search of food.
-In search of mates
-In search of shelter
-To escape from enemies or predators

(1b)
(i)Phloem conducts food substances downward to other tissue in the root of plants.
(ii)Leaf helps plants to transpire and undergo photosynthesis
(iii)Xylem transports water and dissolved mineral salts upwards through the vascular bundle.
(iv)The primary function of a flower is for reproduction

(1ci)
-Small or no leaves to prevent evaporation
-Thorns for protection against animals seeking stored water
-Ability to absorb water whenever available

(1cii)
-It ensures that the diploid condition of the cell is retained from generation to generation.
-As cells undergo mitotic division, growth occurs.

(1di)
Light rays from an object enter the eye through the cornea. The light rays are refracted by the convex cornea and passed through the aqueous humour which further bends the light rays before entering the lens through the pupil. The lens further bends the light rays and focuses them on the retina.
The light rays are converted into electrical impulse, which are sent through the optic nerve to the optic lobes of the brain where they are correctly interpreted.

(1dii)
-Evidence from comparative anatomy.
-Evidence from vestigial organs
-Evidence from fosils

==================================

(2a)
(Pick any two)
(i) The sclera or sclerotic layer
(ii) Cornea
(iii) Choroid or Middle layer
(iv) Conjuctiva

(2bi)
Excretion: Excretion is simply defined as the elimination of waste products of metabolism from the body of an organism. In order word ,excretion is also defined as the process by which waste products of metabolism are removed from the body of living thing.

(2bii)
Competition: competition is defined as the interaction between members of the same population or species ,occupying the same trophic level, to obtain mutually needed resources that are short in supply in their environment.

(2biii)
Deforestation: Deforestation is the permanent removal of a forest or stand of trees from land which is then converted to a non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use.

(2c)

(2d)
(pick Any four)
(i)Salting
(ii)pickling
(iii)smoking
(iv)canning
(v)Bottling
(vi)Pasteurization
(vii)sterilization

================================

(3)

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QUESTIONS 👇

 

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