Question

(a) Exptain any three directional movements in plants.
(b) How are brain and spinal cord protected in the humans?
(c) Name the master gland present in the brain
​

Answer 1

B) Answer:

Brain: It is protected by the bony box-cranium, also called as skull.

Also the membranes that surround the brain (meninges) are filled with cerebrospinal fluid that act as shock absorbers protecting the brain.

Spinal cord: The vertebral column, commonly called backbone, protects the spinal cord.

C)The hypothalamus is known as the master switchboard because it's the part of the brain that controls the endocrine system. The pituitary gland, which hangs by a thin stalk from the hypothalamus, is called the master gland of the body because it regulates the activity of the endocrine glands.

The hypothalamus detects the rising level of the target organ's hormones then sends either hormonal or electrical messages to the pituitary gland. In response, the pituitary gland releases hormones, which travel through the bloodstream to a target endocrine gland, instructing it to stop producing its hormones.

sorry my dear friend but i dont know the answer of ( a)

but i answered b and C

hope my answer will help u

pls mark it as brainliest