Question # 1

The group of animals whose excretory system is structurally associated with nutritive tract.

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Vertebrates

Earthworm

Insects

Planaria

The amount of energy left plants have met their respiratory needs is net eprimary production , which shows up as plant:

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Respiration rate

Photosynthesis

Biomass

Food reserve

The syndrome in which individual has short stature, webbed necm, without ovaries, and complete absence of germ cells is.

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Mongolism

Kline felter syndrome

Down's syndrome

Turner's syndrome

In xerosere, polytrichum and tortula represent.

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Herbaceous stage

Moss stage

Follage lichen stage

Crustose lichen stage

Selective weed killer

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2-4 D

I AA

NAA

IPA

The ultimate source of change is.

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Evolution

Mutation

Genetic drift

Migration

Adenine and guanine are called

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Purines

Pyrmidines

Both a & b

None of these

Similarity in characteristics resulting from common ancestry is known as:

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Analogy

Homology

Evolutionary relationship

Phylogeny

The autosomal non disjunction in man in which 21st pair of chromosome fail to segregate resulting in gametes with 24 chromosomes is.

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Down's syndrome

Klinfilter syndrome

Turner's syndrome

Jacob's syndrome

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

Triethylamine Oxide is produced in.

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Hag Fish

Bony fish

Marine fish

Cartilaginous fish

Urea is detoxified form of____ in the urea cycle which can be retained in the body.

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Ammonia

Nitrogen

Uric Acid

CO2

The collenchymas cells have protoplast and usually lack

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Secondary wall

Vacuole

Middle Lemelta

Primary wall

Primer for PCR contains about.

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5 bases

10-20 bases

30 bases

40 bases

The most critical phase of mitosis, which ensures equal distribution of chromatids in the daughter cells is.

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Prophase

Tele phase

Meta phase

Anaphase

The parts of body use extensivly to cope with the environment become larger & stronger, while those that are not used deteriorate was argued by:

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Charls darwin

Alfred wallace

Carolus

Lamorck

Pavlov performed experiments on dog to prove

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Conditional reflex I

Habituation

Imprinting

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

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