Characteristic feature of halophytes are

Characteristic feature of halophytes are

Options

(a) velamen (b) hydathode (c) pneumatophore (d) lenticel

Correct Answer:

pneumatophore

Explanation:

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Excessive aerenchyma is the characteristic of

Excessive aerenchyma is the characteristic of

Options

(a) heliophytes (b) mesophytes (c) xerophytes (d) hydrophytes

Correct Answer:

hydrophytes

Explanation:

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ABA is involved in

ABA is involved in

Options

(a) dormancy of seeds (b) shoot elongation (c) increased cell division (d) root elongation

Correct Answer:

dormancy of seeds

Explanation:

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Bud dormancy is induced by

Bud dormancy is induced by

Options

(a) ABA (b) ethylene (c) IAA (d) gibberellic acid

Correct Answer:

ABA

Explanation:

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Excessive elongation of plant stem is due to

Excessive elongation of plant stem is due to

Options

(a) IAA (b) cytokinin (c) auxin (d) gibberellin

Correct Answer:

gibberellin

Explanation:

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In gymnosperm, the endosperm is formed by

In gymnosperm, the endosperm is formed by

Options

(a) fusion of two polar nuclei (b) fertilized egg (c) fusion of one polar nuceus (d) germination of one megaspore

Correct Answer:

germination of one […]

Piercing and sucking mouth parts are found in

Piercing and sucking mouth parts are found in

Options

(a) mosquitoes (b) butterfly (c) house fly (d) ticks

Correct Answer:

mosquitoes

Explanation:

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