Question

Answer the following.
a. Explain chemical co-ordination in
humans and give the names and
functions of some hormones.
b. Explain the difference between the
excretory system of humans and
plants.
c. Explain co-ordination in plants
with the help of suitable examples.​

Answer 1

Answer:

1.Chemical coordination is centered in system of glands known as endocrine glands . The glands secerte hormones , a series of chemical substances composed of protein or sterol lipids.Hormones bring about changes that help coordinate body systems .

Thyroxine hormone is secreted by thyroid gland that regulates overall body metabolism.

Pancreas secrte insulin which facilitates passage of glucose into all body cells for use in energy metabolism.

2. Urine is passed out of the body through a muscular tube-like structure called the urethra. plants do not have any excretory system. Plants use a variety of techniques to remove waste materials. Oxygen, a by-product of photosynthesis is removed through stomata.

3.plants have neither nervous system nor muscles that bring about Movement in animals it. ... hormones in plants are called plant hormones or growth regulator this helped in coordination of the plant. incremental triggers such that light water Gravity Chemicals that help in a coordination of the plant.

Answer 2

Answer:

in vertebrate chemical coordination is brought about by endocrine glands

nice ans s1201...