2019 NECO BIOLOGY PRACTICAL QUESTIONS AND ANSWERS.

NECO 2019 BIOLOGY PRACTICAL COMPLETE ANSWER.

 

 

(1ai)

SPECIMEN A – Bean seedlings

SPECIMEN B – Maize seedlings

SPECIMEN C – Coconut fruit

SPECIMEN D – Tridax fruit

SPECIMEN E – Frog

SPECIMEN F – Praying Mantis

 

(1aii)

A – Epigeal germination

B – Hypogeal germination

 

(1aiii)

A – The cotyledons are brought above the ground due to rapid elongation of hypocotyl

B – The cotyledons remain below the soil during germination

 

(1bi)

C – Water

D – Wind

 

(1bii)

C – Drupe

D – Cypsela

 

(1ci)

Drawing of Frog

 

(1cii)

Hindlimbs are longer than their forelimbs

 

(1ciii)

(i) Providing body support during sitting or walking

(ii) Pushing the body during jumps

 

(1d)

Specimen F

(i) Presence of two antennae

(ii) Presence of six legs

 

Specimen G

(i) Absence of antennae

(ii) Presence of four legs

 

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(2ai)

SPECIMEN G – Lizard

SPECIMEN H – Snail

SPECIMEN I – Grasshopper

SPECIMEN J – Cockroach

SPECIMEN K – Orange

SPECIMEN L – Mosquito

 

(2aii)

Specimen G – Reptilia

specimen H – Gastropoda

Specimen I – Insecta

 

(2bi)

Malaria

 

(2bii)

(i)use of insecticide

(ii)use of mosquito net

(iii)cleanliness of the environment

 

(2biii)

(i)The neck is short

(ii)The tail is long and tapers at the end

 

(2c)

DRAW THE DORSAL VIEW OF A COCKROACH

 

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(3ai)

Specimen M; Measuring cylinder

Specimen N; Soil sample (loamy soil)

Specimen O; Earthworm

Specimen P; Hygrometer

Specimen Q; Thermometer

Specimen R; Hand net

 

(3aii)

Specimen p; used in meteorological science to measure the humidity, or amount of water vapour in the air.

 

Specimen Q; Used for measuring temperature

 

Specimen R; Used for catching fish or used for hunting for fish in the river.

 

(3aiii)

(i)They improve the soil structure

(ii)They help to improve the fertility and nutrient content and availability in the soil

(iii)Earthworms improve soil drainage

 

(3bi)

(i)the soil sample settled below the water level

(ii)the water above the soil sample increase as soil goes down

(iii)the water above the soil sample get clearer

 

(3bii)

Digram

 

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