Question # 1

In the atmosphere, carbon is found as

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graphite

diamond

carbonates

carbon dioxide

It is an example of endoparasite:

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mosquitoes

leeches

lice

plasmodium

No. of bronchi in the air passage way are:

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1

2

3

4

The process of gaseous exchange involves.

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Break down of C-H bounds to yield energy.

Physical movements that take air ain and our of body

Getting oxygen from the air and removing carbon dioxide

Transport of oxygen by the blood to different parts of the body.

Chromatin is made up of:

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DNA

Protein

DNA+ Protein

None of these

Expression of genotype in the form of trait is:

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Genome

Phenotype

Complete dominance

Incomplete dominance

Example of discontinuous variation is:

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Blood group

Height in Man

Intelligence

None of these

A material which contain weakened pathogen is called.

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Vaccines

Antigene

Antibodies

Antiboitic

Maintenance of balance in the amounts of water minerals, temperature and glucose in body is called.

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Excretion

Tubular secretion

Homeostasis

Reabsorption

It is genetic material.

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DNA

RNA

IRNA

rRNA

In man the system of gaseous exchange is:

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digestive system

respiratory system

nervous system

excretory system

All herbivore animals are:

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Grass eater

Parasites

Predaters

Prey

Which of the following statement regarding genes is FALSE.

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Genes are located on chromosomes

Genes consist of a long sequence of DNA

A gen contains information for the production of a protein

Each cell contain a single copy of every gene.

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