Question # 1

Zygote is formed by the fusion of.

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Two sperm cells

Two egg cells

Two somatic cells

Sperm cell andegg cell

Carbon burns in air to release energy along with the formation of.

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Carbon dioxide and hydrogen

Carbon monoxide and hydrogen

Carbon di oxide

Carbon dioixe and water

An event that occurs during interphase.

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Division of nuclesu

Duplication of chromosomes

Division of cytoplasm

Formation of cell wall

Ne belongs to

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Nitrogen family

Fluorine family

Noble gases

Alkaline earth metals

Herbieldes and pesticides are used to eliminate.

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Crop plants

Crop enemies

Crop products

Major crops

A relationship where two species live togetehr closely is called.

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Mutualism

Commensalism

Symbiosis

Hebitate

During respiration by the animals, whihc gas is released into the atmosphere.

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Nitrogen

Oxygen

Carbon Di oxide

Hydrogen

Surface temperature of the Sun is

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3000 oC

6000 oC

15000 oC

1,500,000 oC

Star's distance are measured in

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Kilometeres

Miles

Light years

Nauticalmiles

The SI unit of voltage is.

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Watt

Joule

Coulomb

Volt

Chromosomes consist of DNA and.

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Sperms

Gametes

Proteins

Eggs

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