Question # 1

Chloroplast helps in _______________

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Photosynthesis

Respiration

Brething

Digestion

Which of these are responsible for blood clotting?

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Platelets

Erythrocytes

Neutrophils

Baseophils

Important cause of species extinctions is:

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Habitat loss

Deforestaion

Over population

Both a and b

............ is loose, watery stools.

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Constipation

Diarrhea

Both

None

Deforestation results in:

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Soil erosions

Increased water storage capacity dams

More humidity

MOre clouds

Which of the following process use energy to occur?

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Active transport

passive transport

Osmosis

All of these

Mitochondria are found in:

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Eukaryotic cells

Prokaryotic cells

Both

None

In plants, _______________ conduct water.

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Xylem

Phloem

Both

None

Felis Tigris is scientific name of ____________

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Cat

Lion

Tiger

Deer

When we add more substrate to an already occuring enzymatic reaction and there is no increase in the rate of reaction, what would you predict?

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All actives sites have been occupied by substrate molecules

The enzyme molecule have denatured

More substrate acted as inhibitor

More substrate has disturbed has disturbed the pH of the medium

Phyla are grouped into ____________

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Classes

Family

Kingdom

Order

The male reproductive part if flower is:

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Stigma

Stamen

Ovary

Carpel

Which of the following is not an example of green house gas?

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CO₂

Methane

Oxygen

Nitrous oxide

Which one of the following have exoskeleton?

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Arthpods

Birds

Mammals

Reptiles

Body balance of water, salts, temperature and glucose is termed as:

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Excretion

Tubular

Homeostasis

Re-absorption

Allows movement in all directions :

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Hinge joints

Ball and socket joints

Joints among skull bones

Slightly moveable joints

Ovule after ripening make :

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Fruit

Seed

Root

Egg

Where does the gaseous exchange occur in humans?

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Pharynx

Trachea

Bronchi

Alveoli

What type of blood vessels surrounds the alveoli?

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Artery

Arteriole

Capillary

Vein

Which is not an advantage of grafting?

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The graft is identical to the parent plant.

Grafting allows the propagation of seedless fruits.

The graft combines the characteristics of two plants.

Grafting may allow for the faster production of desirable fruits.

Pollination is the transfer of pollens from:

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Anther to sigma

Stigma to anther

Sepal to petal

Petal to sepal

An example of hardest connection tissue in the body is:

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Cartillage

Bone

Blood

fats

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