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World Environment day falls on 5th June/ 16th September.

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World Environment Day is celebrated on

Choose the correct alternative: Antifertilizin lies on sperm/ovum.

Choose the correct alternative: Dendrons are afferent/efferent in nature.

Choose the correct alternative. Animal''s place in the environment and its functional role in an area is called habitat/ecological niche.

Choose the correct alternative A meristem/ fruit is free of viruses.

Choose the correct alternative: Earthworm has two/four paris of lateral hearts.

Choose the correct alternative: Frog is ureotelic/uricotelic in excretion.

Choose the correct alternative A typical anther is bilobed / four lobed.