The arthropod which is known as living fossil is

The arthropod, which is known as living fossil is

Options

(a) Bombyx(silkworm) (b) Locusta(locust) (c) Limulus(king crab) (d) Annelida

Correct Answer:

Limulus(king crab)

Explanation:

Limulus is a living fossil animal. The living fossil […]

Sweet potato is a modified

Sweet potato is a modified

Options

(a) Rhizome (b) Tap root (c) Adventitious root (d) Stem

Correct Answer:

Adventitious root

Explanation:

Sweet potato is a modified adventitious root for storage of food. Rhizomes […]

Secondary growth do not occur in

Secondary growth do not occur in

Options

(a) Riccia (b) Funaria (c) selaginella (d) none of these

Correct Answer:

none of these

Explanation:

Riccia, Funaria, Selaginella shows secondary growth

Pneumatophores occur in

Pneumatophores occur in

Options

(a) Submerged hydrophytes (b) Carnivorous plants (c) Free-floating hydrophytes (d) Halophytes

Correct Answer:

Halophytes

Explanation:

Halophytes like mangrooves have pneumatophores.Apogeotropic (–vely geotropic) roots having lenticels called pneumathodes to uptake […]

Plants having little or no secondary growth are

Plants having little or no secondary growth are

Options

(a) Cycads (b) Conifers (c) Deciduous angiosperms (d) Grasses

Correct Answer:

Grasses

Explanation:

Grasses are monocots and monocots usually do not have secondary growth.Palm […]

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