Question # 1

Fungi resemble plants because they

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Have cell wall

Lack centriole

Are non-motile

All of the above

The irritant substances of smoke generally cause

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Smoker's hiccough

Smoker's sneeze

Smoker's yawing

Smoker's cough

Excretory system in arthropods is composed of.

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Kidney

Nephridia

Malpighian tubules

Flame cells

Which of the following is a feature of series deuterostomia

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Cleavage of zygote is spiral and determinate

Coelom is formed due to splitting of mesoderm

Mouth arises from blastopore or anterior margin

Mesoderm is derived from wall of developing gut

Biology is short in laws because of

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exclusive nature of life

Less falsification

Large population of human

Less tentation

The open circulatory system is present in

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Periplaneta

Pheretima

Amphioxus

Rana tigrina

The causative agent of African sleeping sickness

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Tse Tse fly

Mosquito

Trypanosoma

Trichonymenas

Which one of the following statements about enzymes is not true

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They consist of proteins or without a non-proteins part

They change the rate of catalyzed reaction

They are sensitive to heat

They are non-specific in their action

Common name for Anchyclostoma duodenal is.

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Pin worm

Tape worm

Hook worm

Earth worm

pH gradient drives the formation of ATP across membrane in the process called.

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Respiration

Chemiosmosis

Conduction

Calvin cycle

Bacteria which produce vitamin K are present in

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Small intestine

Larger intestine

Stomach

Duodenum

Trial and error learning has no role in

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Operant learning

Classical conditioning

Insight

Imprinting

The total energy of the sun, trapped by the producer in an ecosystem is about.

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20%

01%

10%

30%

In the eighteenth century organisms were classified by

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Charles Darwin

Alfred Wallace

Carolus Linnaeus

J.B Lamarck

Digitigrade mammals tend to walk on their

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Soles

Digits

Tips of toes

None of these

The macronutrient in biogeochemical cycle is.

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Iron

Iodine

Zinc

Calcium

According to one of the speculations life may have begun deep in the oceans in underwater hot springs called hydrothermal

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Apertures

Gaps

Vents

Outlets

In myelinated neurons the impulse jumps from node to node (node of Ranvier) This is called

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Myelinated impulse

Jumping impulse

Saltatory impulse

None of these

Soilerosion, fire and water percolation down through the soil cause loss of.

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Sulphates

Carbonates

Phosphates

Nitrates

Between the seminiferous tubules are interstitial cells which secrete

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Cestrogen

Testosterone

Progesterone

Oxytocin

The unspecialized cells present in flatworm and Planaria are.

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Neoblast

Osteoblast

Osteoclast

Chondrocyte

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

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