Question # 1

Primary growth in plants is caused by.

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Apical meristem

Intercalary meristem

Lateral meristem

Rib meristem

The negative physiological changes in our body are said to be

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Maturation

Childhood

Agning

Displacement

The unspecialized cells present in flatworm and Planaria are.

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Neoblast

Osteoblast

Osteoclast

Chondrocyte

A plant has a growth pattern called

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Open growth

Closed growth

Round growth

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

Deficiency of vasopressin or ADH by the pituitary gland leads to a disorder in which the patients kidney have lessoned ability to absorb water is:

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Diabetes mellitus

Diabetes insipidus

Goiter

Exophthalmic goiter

Neural plate is formed from

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Ectoderm

Endoderm

Mesoderm

Notochord

Clear cytoplasm produces.

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Muscle cells

Gut

Larval epidermis

Notochord

On the basis of structure and shape of the cap,two species of Acetabularia have been identified

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Acetabularia mediterrance & A.crenulata

A.typhi & A.mediterranea

A.crenulate & A.sisso

A.crenulata & A.arabica

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

The addrenaline cortex produces ______________

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Adrenaline

Calcitonin

Epinephrine

Aldosterone

In which developmental stage, germ layers are formed.

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Cleavage

Blastula

Gastrula

Organogenesis

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

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Leaf

Root

Stem

Stem and root

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

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Abcesic acid

Gibberellins

2,4-D

Cytokinins

Clear cytoplasm, in an ascidian zygote produces.

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Muscle

Gut

Notochord and neural tube

Larval epidermis

A plant has a growth pattern called.

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Open growth

Meristem

Growing point

Apical

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

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Blastulation

None of these

Neurulation

Gastrulation

Immediately after fertilization, the egg undergoes a series

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Morulla

Gastrulation

Cleavage

Blastula

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