Question # 1

The urine leaves the body during urination from bladder through a tube called.

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Pelvis

Urethra

Ureter

Medulla

An association between two organisms by which both are benefited is called.

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Parasitism

commensalism

Mutualism

Predation

Which statement defines the net primary production in an ecosystem over a given time period?

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The total amount of organic matter in the plants in excess of that used in respiration

The total amount of organic matter used in respiration by all the organisms present

The total amount of photosynthesis product from all plants

The total amount of organic matter in all organisms present

Young tissues retaining the potential to divide.

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Meristem

Xylem

Phloem

Cork

Pressure filtration is kidney specifically occurs at

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Vasa recta

Bowmann's capsule

Urine collecting

Loop of henle

Antibody used for the treatment of genital hedges is obtained from

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Corn

Soya bean

Rice

Wheat

Resting membrane potential of a neuron is

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50 mv

-70 mv

-60 mv

-80 mv

The form of appearance of the trait is called.

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Genotype

Phenotype

Wild type

dominance

The most concentrated external environment is termed as.

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Hypotonic

Hypertonic

Osmotic

Isotonic

MN blood group is example of

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Complete dominance

Co- dominance

Over dominance

Incomplete dominance

Labour pains are induced by a hormone.

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ACTH

Oxytocin

Progesterone

Corticosteroid

A woman can be bald only when she is

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Homozygous domunant

Heterozygous

Homozygous recessive

Maleness

The enzyme which joins the two pieces of DNA is

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DNA polymerase -I

DNA ligase

Restriction endonuclease

DNA polymerase -I

Which sequence of organs is correct in air passage way of man?

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Nasal cavities larynx phaynx trachia bronchi

Nasal cavities phaynx trachia larynxbronchi

Nasal cavities phaynx larynxbronchitrachia

Nasal cavities phaynx larynxtrachia bronchi

The animals that lay shelled eggs to protect the developing embryo are called.

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Oviparous

Ovovlviparous

Viviparous

Egg laying mammals

Why is there no glucose present in the filterate in the distal tubule of a nephron?

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Its molecules are two large to pass across the base ment membrane

It is removed by osmosis from the tubule

It is positively absorp by the cells lining the descending loop of henie

He is actively absorb by hte proximal tubule cells

Hemophilia is

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X linked dominant trait

X linked recessive trait

Sex influenced trait

Sex limited trait

The type of Nastic movement ,which occurs in response to contact is called.

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Hyponastic

Photonasty

Nyctinasty

Thermonasty

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