Question # 1

The addrenaline cortex produces ______________

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Adrenaline

Calcitonin

Epinephrine

Aldosterone

Clear cytoplasm produces

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Larval epidermis

Muscle cells

Gut

Neural tube

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

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Blastulation

None of these

Neurulation

Gastrulation

The discoidal cap of cells above the blastocoel is called.

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Ectoderm

Endoderm

Mesoderm

Blastoderm

In humans ,MSH(melanocyte-stimulating hormone) ___________

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Regulates primary skin color

Causes the thyroid to produce thyroxin

Governs the rate of tarming

Concentration is very low.

The individuals who born with abnormal organs or body parts is called.

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Malformed

Malignant

Malfunction

Oxytocin is secreted by the endocrine gland named:

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Pituitary gland

Thyroid gland

Parathyroid gland

Adrenal gland

_______ regulates the kidney's retention of water.

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Prolactin

Oxytocin

Thyroxin

Vasopressin (ADN)

Unspecialized cells, neoblast are always present in body of.

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Salamander

Planaria

Lizard

Newt

In chordates the healing of fracture and repair of a skin wound are some other examples of

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Reformation

Regeneration

Rejuvenation

Renaissance

The mesodermal cells do not invaginate but migrate medially and caudally from both sides and create a midline thickening called.

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Hensen's node

Primitive streak

Hypoblast

epiblast

The negative physiological changes in our body are said to be

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Maturation

Childhood

Agning

Displacement

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

Which light enhance cell division and retards cell enlargment.

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Red

Green

Blue

Violet

For maximum growth the optimum temperature is 25 - 30^oC and it least at

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1 - 3^oC

5 - 10^oC

4 - 8^oC

6 - 12^oC

Clear cytoplasm produces.

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Muscle cells

Gut

Larval epidermis

Notochord

In which developmental stage, germ layers are formed.

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Cleavage

Blastula

Gastrula

Organogenesis

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

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