Protective tissues includes epidermis & cork. Epidermis is basically a simple permanent tissue, protective in function. It forms one-cell-thick covering over all the parts of plant.
<h3>⇝ <u>Characteristics of Epidermis</u> : </h3>
Epidermis is formed of living cells, arranged in a single layer.
In aerial parts, epidermis is covered with a waterproof and noncellular waxy covering called cuticle.
Cells form a continuous layer, but in leaves epidermis has small openings called stomata.
Each stoma is guarded by a pair of bean-shaped guard cells which govern opening & closing of stomatal aperture.
<h3>⇝ <u>Functions of Epidermis</u> :</h3>
Epidermis protects the underlying tissues from mechanical injury, chemicals & infection.
Cuticle of epidermis protects against water loss & desiccation. It checks the rate of transpiration & evaporation and prevents wilting.
Stomata in the epidermis of leaves help in gaseous exchange during respiration & photosynthesis.
<span>Is an example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor</span>
The inter-tropical convergence zone because it is a shifting zone between the tropics of cancer and capricorn were surface wind converge.
The inter tropical convergence zone is a belt of low pressure which circle the earth generally near the equator. The trade winds of the northern and southern hemisphere come together at this zone of inter tropical convergence.
