Question # 1

The male gametophyte of an angiosperm is the

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Anther

Embroyo sac

Microspore

Germinated pollen grain

Nephridia are excretory structures of.

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Sponges

Annelids

Arthropods

None of these

The exchange of gases between the organism and its environment is called.

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Respiration

External respiration

Cellular respiration

Anaerobic respiration

Living genus of psilopsida

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Cooksonia

Psilophyton

Horneophyton

Psilotum

What is the true sequence of bones in the mammalianear.

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Malleus, incuse and stapes

Incus and stapes

Malleus and stapes

Stapes and malleus

Pseudo coelom is characteristic.

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Nematoda

Mollusca

Annelida

Echinodermata

Cardiac muscles can be distinguished from other muscle fibers because cardiac muscles

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Contain only actin

Voluntary in action

Lacks regular arrangement of sarcomeres

Have intercalated disc

Thylakoid membrane are involved is ATP synthesis by a process known as.

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Photolysis

Chemiosmosis

Redox process

Glycolysis

Amoebic dysentery in.

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Amoeba

Entamoeba histolytica

Trypanosoma

Plasmodium

Conjugation in bacteria is promoted by

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Flagella

Pilli

Cilla

Gamets

Eukaryotes have pores per nucleus.

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3000

30,000

6 or 8

3 or 4

Rapid movement of leaves of mimosa on touching is a example of.

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Turgor movement

Tropic movement

Nastic movement

Growth movement

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

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

Poly hydroxy butyrate is called.

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Antithrombin III

Nutra Sweet

Biodegradable plastic

Luciferin

Anti codes present on

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mRNA

tRNA

rRNA

DNA

Shape of the plant cell does not change greatly compared with an animal cell because it is surrounded by a rigid

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Cell membrane

Capsule

Sheath

Cell wall

The chief nitrogenous waste in birds and reptiles is

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NH3

Urea

Uric Acid

Creatirine

Which one is not a vestigial organ of human being.

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Appendix

coccyx

eye lid

Nictitating membranes

For evaporative cooling bats use

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Saliva

Urine

Sweat

All a,b,andc

CNS is composed of

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Sensory neuron

Associative neuron

Dendrites

Motor neuron

Which of the following hormones is not released by the anterior pituitary?

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Melanocyte - releasing hormone

Gonadotropin-releasing harmone

Thyroid- stimulating hormone

Growth hormone

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