Home WAEC NECO NABTEB
JAMB CBT JUPEB IJMB Other Exams Main Website
Want To Contact Us? Click Here

Quick Contact

Click To Send Us SMS Now
Click To Chat Examrelief On WhatsApp

Latest NECO on Giditrends

2020 NECO Biology Questions and Answers
NECO November 19, 2020 • 4 days ago • No Comment Yet

WELCOME TO EXAMRELEIF 2020 NECO ANSWERS PAGE

KEEP REFRESHING THIS PAGE UNTIL THE QUESTIONS AND ANSWERS ARE FULLY UPLOADED

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

100% VERIFIED BIOLOGY QUESTIONS
Page 1. CLICK HERE
Page 2. CLICK HERE

👑 2020 NECO VERIFIED BIOLOGY ANSWERS👑

100% VERIFIED BIOLOGY OBJ ANSWERS

1-10: ECDADACEAD
11-20: CAACCDDEDC
21-30: CCCAAEEDED
31-40: BBCEDACEEA
41-50: DDDCDCADAE
51-60: DCCEAADADB

100% VERIFIED BIOLOGY ESSAY ANSWERS

(1a)
Make Sure Your Drawing is (8-10cm)
Diagram [CLICK HERE]

(1b)
(i)predation; this is a relationship between two organism in which one feeds on the other organisms. The one feeding on the other is called the predator while the one they are feeding on is known as the prey

(1bii)
(ii)Mutualis; this is the relationship between two organisms in which both benefited from the association.

(1ci)
(i)Epigeal germination
(ii)Hypogea germination

(1cii)
(i)Amoeba
(ii)Paramecium
(iii)Euglena

(1ciii)
(i)Salting
(ii)Smoking
(iii)Freezing
=====================================

(2a)
-Symptoms-
(i)High fever
(ii)coughing
(iii)sneezing
(iv)headache and body pain

-prevention-
(i)Regular hand washing
(ii)maintenance of social distance
(iii)use of hand sanitizer with high alcoholic content
(iv)avoidance of handshakes

(2aii)
(i)they have two seed leaves or cotyledon
(ii)there floral parts are in four or fives
(iii)there vascular bundles are in concentric circles
(iv)there root develop from the radicle

(2bi)
Diagram [CLICK HERE
]

(2bii)
(i)Possession of the leaves that helps in floatation
(ii)their stomata are located on the surface of the plant for easy gaseous exchange
(iii)Possession of little or no root system.
=====================================

(3ai)
Pathogen; this is defined as any organisms capable of causing diseases

(3aii)
Haemolysis; this can be defined as the breaking down of the red blood cells or corpuscle due to high passage of water into it

(3aiii)
Deforestation; this can be defined as the indiscriminate falling of forest trees

(3b)
(i)Quadrat
(ii)Sweep net
(iii)Role (for transact method)
(iv)Thermometer

(3c)
The pinna collects sounds waves in air and pass them through external auditory canal. The waves cause the vibration of the tympanic membrane which passed on to the ear Ossicles that amplify them. The round oval window vibrates and passes the waves into the cavity of the inner ear or cochlea where the perilymph and endolymph vibrate the sensory nerve cells vibrate and stimulate the auditory nerve cells which then transmit the impulses to the brain for interpretation.

(3di)
Calyx; it protects the flower which is in the bud

(3dii)
Corolla; it attract pollinators.
=====================================

(4a)
Make Sure Your Drawing is (8-10cm Long)
Diagram [CLICK HERE
]

(4bi)
Mitochondrion; it produce energy in the cell

(4bii)
Ribosome; it brings about protein synthesis in the cell

(4biii)
(i)they are proteinous in nature
(ii)it speed up the rate of chemical reaction
(iii)they remain chemically unchanged
(iv)they are specific in function

(4biv)
(i)they are easily carried by the wind
(ii)they may have wings
(iii)they may have floss
(iv)they may have parachute
=====================================

(5a)
Diagram [CLICK HERE]

(5b)
(i)planting cover crops
(ii)construction of good drainage system
(iii)avoid dumping refuse into the drainage system
(iv)strict laws in the disposal of refuse

(5c)
Fertilization in flowing plants leads to the production of seeds which are capable of germinating into new plant. In this case the pollen grains (male reproductive gamete) is transferred onto the stigma where it is passed into the ovary for pollination to take place and then to the ovule leading to the formation of seed.

=====COMPLETED=====

Don’t Just Copy Alone, Drop your Comments, Share with your friends on Facebook & Twitter Using the below share buttons.
BEST OF LUCK

Click Here To Comment

Leave a Reply