Question # 1

Living genus of psilopsida

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Cooksonia

Psilophyton

Horneophyton

Psilotum

The specific heat of vaporization of water is.

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457 kcal/kg

574 kcl/kg

580 kcal/kg

570 kcal/kg

Parasitic fungi directly absorb nutrients from living host by

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Haustoria

Roots

Rhizoids

Gametangia

The number of species of insects are.

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22.5%

17.6 %

15.5%

53.4%

All living organisms are formed of basic units called

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Atoms and sub-atomic particles

Cells

Tissues

Organs

Many human become ill from consuming milk and milk products because they lack

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Bacteria in their intestine

Rennin

Lactase

Hydrochloric acid

African sleeping sickness is caused by

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Entamoeba

Trypanosoma

Pelomyxa

Stentor

A common mussel has two large gills covered with

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shell

Pseudopodia

flagella

Cilla

Number of air sacs in birds is

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6

7

8

9

Walls of the chest cavity are composed of

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Ribs

Intercostal muscle

Ribs and intercostal muscle

Ribs, intercostal muscle and diaphragm

The percentage of calcium in human body is.

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1%

2%

3%

4%

Among vertebrates uric acid is the chief nitrogenous waste in birds and

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Fishes

amphibians

Reptiles

Mammals

In amoeba movement takes place by means of

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Cilium

Flageilum

Pseudopodium

Myonemes

Each Okazaki fragment is synthesized by.

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RNA Polymerase

DNA polymerase

DNA polymerase I

DNA polymerase III

In man the vestigial organs are

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Ear muscles

Nictitating membrane

Coccyx

All a,b and c

The biome, which has very fertile soil, rich in organic matter with maximum water holding capacity is.

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Alpine forest

Grassiland

Desert

Temperate deciduous forest

An ordered sequence of irrversible steps with each step setting up the necessary conditions for the next step is

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Embryology

Growth

Development

None of these

Cell death due to tissue damage is called.

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Apoptosis

Metastasis

Necrosis

Suicid

A probe is a single stranded nucleotide sequence that will hybridize (pair) into a certain piece of

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DNA

RNA

Amino acid

Fatty acid

The remodeling of bone is a function of which cells?

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Chondrocytes and asteocytes

Osteoblasts and osteoclasts

Chondroblasts and osteoclasts

Chondroblasts and osteocytes

Osteomalacia includes a number of disorders in which bones receive inadequate

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Water

Oxygen

Mineral

Blood

Highly condensed portions of the chromatin are called.

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Homochromatin

Heterochromatin

Euchromatin

Achromatin

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