Question # 1

It is a group of related classes:

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Phylum

Class

Species

Family

Which is composed of only protein?

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Viruses

Prions

Viroids

B and C

According to pressure flow mechanism which is the actual force behind the movement of food in phloem?

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Drop in the pressure at the sink end

Gain of water at the sink end

Osmotic pressure

All of these

Vitamin which acts as co-enzyme is:

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Vitamin A

Vitamin K

Riboflavin

All of these

Arteries can be divided into ........... types.

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Two

Three

Four

Five

Scientific name of pea plant is.

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Dilbergia Sisso

Pisum indicum

Homosaplens

pisum Sativum

Which of the tissues make the glandular tissue in animals.

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Epithelial

Connective

Muscular

Nervous

Light reaction takes place in the ...... of chloroplast.

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Granum

Strome

Intergrana

All

................. is an important port of ulcer formation.

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Cigarette smoking

Over eating

Spicy food

All

The elements that makes 03% of the totla mass of living organisms is.

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Hydrogen

Carbon

Oxygen

Nitrogen

In which compound of the leaf cells, chlorophyll is present?

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Stroma

Thylakoids

Plasma membrane

Cytoplasm

The thin extensions of the inner mitochondrial membrane are known as __________

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Cristae

Matrix

Thylakoids

Stroma

Which of the following distinguishes meiosis from mitosis?

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The chromosome number is reduced

Chromosomes undergo crossing over

The daughter cells are genetically different from the parent cell.

All of the above

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