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Biology Plant Anatomy And Physiology Difficulty: Medium

Which of the following elements is not essential for plant growth?

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Food wrapped in news paper is likely to get contaminated by HIV often changes its shape due to the presence of an enzyme is called The unique feature of bryophytes compared to other green plants groups is that In the microspore, the outer variously sculptured layer, sexine remains attached to the nexine by means of Consider the following animals. 1. Sea cow 2. Sea horse 3. Sea lion Which of the above is/are mammal/mammals?