Question # 1

Organism in ecologicla communits interact with one anothe rin....... major ways.

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Two

three

Four

Five

The unit of electric power is

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Ampere

Joule

Volt

Watt

Sodium carbonate is an importnatsalt used for many purposes in indusies. Which acid is reacted with sodium hydroxide to get it.

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Oxalic acid

Citric acid

Acetic Acid

Carbonic acid

The central nervous system is made of

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Spinal cord

Brain

All parts of body

Brain and spinal cord

Chromosoems are made of.

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DNA only

DNA, Proteins and fats

Proteins only

DNA, and proteins

An element of group 17 of the Periodic Table.

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Cl

Ar

S

Si

........ are the functional units of the kidneys.

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Renal cortex

Nephrons

Renal medulla

Renal pyramids

Star's distance are measured in

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Kilometeres

Miles

Light years

Nauticalmiles

Th graphical epresentation of tropihic relationship oforaganisms in an ecosystem is called.

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Food Chian

Ecological pyramid

Trophic level

Predation

Which factor is responsible for ecological imbalance.

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Over hunting

Change in water supply

Migration

All these

How do genetic engineers get insuline for diabetic patients.

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Isolate from huma pancreas

Isolate from pancreas of othe ranimals

Insuline gene inserted in humna pancreas

Insulin gene inserted in bacteria

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