3 years ago

Name any three areas of biology wch have specially progressed in the twentieth century

1 answer:

4 0

Almost all areas of Biology have developed in the twentieth century, but few areas have gained a lot of importance. Some of these are :
1. Genomics and Genetics
2. Biotechnology
3.Cell and molecular biology

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The diagram shows structures found in a seed plant. What is the function of labeled X

Alja [10]

Question is incomplete. Complete question has been attached.

Answer:

carries food produced by leaves

Explanation:

The diagram is a cross section of stem of a dicot plant, specifically Hypericum perforatum. It shows all the structures present in the stem like xylem, phloem, pith, cortex etc. The structure labelled X is phloem. It is present between xylem (stained red) and peripheral cortex. Phloem is responsible for conduction of sugars and nutrients in the plant thus it carries the food produced by leaves. Together xylem and phloem make the vascular tissue which surrounds the central pith (stained bluish-green).