Question # 1

The fishes which drink large amount of sea water and excrete concentrated urine are.

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Cartilaginous fishes

Bony fishes

Lung fishes

Jawless fishes

Neural plate is formed from

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Ectoderm

Endoderm

Mesoderm

Notochord

The remoras benefit from this relationship the shark is not affected at all.

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symbiosis

Mycorrhiza

Mutualism

Commercialism

Fertilizations is the process which leads to the union of.

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Individuals

Gametes

Eggs

Sperms

When haemoglobin of the blood is fully saturated with oxygen, the 100cc of blood comains

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15cc of oxygen

20cc of oxygen

25cc of oxygen

10cc of oxygen

Glomerular filtrate are reabsorbed in.

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Promimal tubule

Loop of Henle

Distal tubule

Bowman's capsule

The producers in limnetic zone are

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Amoebae

Cyanobacteria

Crustaceans

Hydrilla

Each nuclear power station only can last for about

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10 years

20 years

30 years

40 years

What will occur if a drug at the neuromuscular junction blocks the receptors sites on the post-synaptic membrane?

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Inhibition of Acetylchlorine release

Muscle contraction

Muscle paralysis

Release of calcium ions

The unspecialized cells present in flatworm and Planaria are.

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Neoblast

Osteoblast

Osteoclast

Chondrocyte

Activation of sweat glands to produce sweat from evaporative cooling is a type of adaptation.

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Structural

Physiological

Behavioural

None of these

High degree of renal failure is also called as.

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uremia

Leukemia

Anemia

Lithotripsy

A respiratory protein which is present i all aerobic organism is.

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Haemoglobin

Cytochrome

Myoglobin

Cytochrone c

Darwin's origin of species was published in.

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1840

1859

1865

1890

An example of long day plant is

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Tomato

Cabbage

Corn

Soyabean

Cambium is formed in stage.

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One

Two

Three

Four

Post mitotic cells can exist the cell cycle during.

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G1 Phase

G0 phase

G3 phase

S phase

In ascidian fertilized egg, yellow cytoplasm gives rise to

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Larval epidermis

Muscle cells

Notochord

Gut

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