Question # 1

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

Biogeography is the geographical distribution of.

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Phylum

species

Genera

Classes

Cambium is formed in stage.

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One

Two

Three

Four

Cell cycle involves.

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Growth of cell

Replication of DNA

Cell division

None of these

The disease caused by low calcium in blood is called.

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Tetanus

Cramp

sciatica

Tetany

Young tissues retaining the potential to divide.

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Meristem

Xylem

Phloem

Cork

Fresh water ecosystem covers less than

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7%

5%

3%

1%

Pinus wallichiana pinus roxbugil Abies pindrow picea smithiana Cederous deodara are plants of

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Coniferous alpine and boreal forests

Temperate deciduous forests

Tropical rain forests

Grassland ecosystem

The Macacamulatta isbiological name for

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Black bear

Cat

Rhesus monkey

Deer

Every gene starts with initiation codon AUG which encodes for the amino acid.

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Lysine

Serine

Proline

Methionine

The negative physiological changes in our body are said to be

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Maturation

Childhood

Agning

Displacement

Muscle present in the gut wall are

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Smooth

Skeletal

Cardiac

Voluntry

In amoeba movement takes place by means of

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Cilium

Flageilum

Pseudopodium

Myonemes

Which prosess is characterized by movement and rearrangement of cells in the embryo

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Blastulation

None of these

Neurulation

Gastrulation

Mountain of Karakoram are located in major terrestrial ecosystem in Pakistan.

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Grass land

tundra

Coniferous alpine forest

Temperate deciduous forest

The rate of heat production is increased by increasing muscle contraction by movement is called.

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Thermoregulation

Shilvering thermogenesis

Non shievering

Thermostat thermogenesis

Tissue culture and cloning seek help through.

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Mitosis

Meiosis

endomitosis

Karyokinesis

The parts of the body used extensively to cope with the environment become larger and stronger while those that are not used deteriorate was argued by

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Charles Drawin

Alfred Wallace

Carolus Linnaeus

J.B Lamarck

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