Question # 1

Parathyroid hormone acts to ensure that

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Calcium levels in the blood never drop too low

Sodium levels in urine are constant

Potassium levels in the blood do not escalate

The concentration of water in the blood is sufficient

in plants regeneration is the basis of plant

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Fishes

Amphibian

Reptiles

Birds

In addition to auxin which hormone also play important role in apical domince

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Abcesic acid

Gibberellins

2,4-D

Cytokinins

The negative physiological changes in our body are said to be

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Maturation

Childhood

Agning

Displacement

Which light enhance cell division and retards cell enlargment.

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Red

Green

Blue

Violet

Hatching period of chick is.

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15 days

18 days

21 days

28 days

In the chick the mesodermal cells migrate and caudally from both sides and create a mid line thickening called

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Primitive streak

Excretion

Ultra-streak

Blastoderm

Study of aging is called

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Teratology

Gerontology

Cell biology

Paleontology

Secondary growth leads to an increase in the diameter if the.

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Leaf

Root

Stem

Stem and root

The functions of oxytocin islare to ___________

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Cause the uterus to contract

Induce labor

Stimulate the release of milk from the mother's mammary glands when her baby is nursing

All of the above

The shell, over chick egg is secreted as it passes through.

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Ovary

Oviduct

Uterus

Cloaca

Primary tissue is added by the

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Lateral meristem

Underground meristem

Apical meristem

Vertical meristem

Young tissues retaining the potential to divide.

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Meristem

Xylem

Phloem

Cork

Acetabularia is a

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Epiphyte

Alga

fungus

Angiosperm

In incubating eggs artificially the incubators are usually regulated at temperature between

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20 - 22^oC

27 - 29^oC

30 - 32^oC

36 - 38^oC

In which developmental stage, germ layers are formed.

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Cleavage

Blastula

Gastrula

Organogenesis

Gray vegetal cytoplasm gives rise to.

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Gut

Muscle cells

Notochord

Larval epidermis

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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