Question # 1

Organisms in the ecosystem that are responsible for the recycling of plant and animal wastes are:

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Consumers

Producers

Decomposer

Competitors

A purple flowered pea plant has the genotype PP, which of the following statements about this plant is FALSE.

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Its phenotype will be white flowers .

It has a homozygous dominant genotype.

When bred to a white flowered plant all offspring will be purple flowered.

All the gametes produced will have the same flower colour allele

The drug used to reduce pain are known as;

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Analgesics

Antiseptics

Antibiotics

Sedatives

Inside of double helix consists of:

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Nitrogenous bases

sugar

sugar Phosphate

Phosphate

Number of bones of sternum is:

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1

8

14

22

Each spore is covered with a thick wall called:

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Membrane

Semipermeable memebrane

Fragment

Cyst

Reduce the possibility of infection on skin :

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Disinfectants

Antibiotics

Antiseptic

Digitalis

The part of the brain responsible for muscle movement interpretation of the senses and the memory is the:

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Pons

Medulla oblongata

Cerebrum

Cerebellum

Horizontal underground stems with scale leaves are called:

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stem tubers

rhizomes

corms

bulbs

Inside testes, sperms are produced in:

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Vas deferencs

Sperm duct

Seminiferous tubules

Collecting duct

Biospher surrounding the earth is about:

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17 km

18 km

19 km

20 km

Which of followings reproduces by bulbs?

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Garlic

Ginger

Terns

Tulips

In a nucleosome , DNA is wrapped around protein named:

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Insulin

Interferon

Histone

haemoglobin

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