Question

which of the following is correct grouping? 1)Ectoderm- retina, epidermis, nervous system 2) mesoderm- ovary, urinary bladder, kidney 3) mesoderm,- lungs, connective tissue, testis 4) endoderm- thyroid, pineal gland, thymus

Answer 1

4 th one is correct soory 3rd one

Answer 2

Answer:

Ectoderm- retina, epidermis, nervous system

Explanation:

• Ectoderm means it is a cell that is present in a primary layers of cells. It related and connected to skin area and nervous system.

• Retina is seen to be present inside the eye ball at the end. Through, retina we can see all the objects through the light.

• Epidermis is present in the outer layer of the skin. It protects the body form all kinds of germs and contains melanin.

• Nervous system helps in controlling of the activities in our different parts of the body. The neurons in our brain controls all our day to day activities such as walking, eating, sleeping.

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