What is Thyroid gland ?
This is the largest gland of the endocrine system. It is bilobed gland located in the neck at the junction of the trachea and larynx.
ICSE
What is Pituitary gland ?
It is about the size of a corn and is situated at the base of the brain . It is often referred to as the “Master gland” as it releases many hormones that control other endocrine glands.
What are the main endocrine glands that have a greater role in human body ?
The main endocrine glands that have a greater role in human body are :- Pineal gland Pituitary gland Thyroid gland Parathyroid gland Thymus Pancrease Adrenal gland Ovaries Testes
What are the characteristics of hormones ?
The characteristics of hormones are :- Hormones are specific chemical messenger. Hormones are secrated in small amounts by endocrine glands Hormones are poured directly into the blood and carried by blood circulation. Hormones act on specific tissue or organ called target organ. Hormones are mostly proteinaceous in nature or are the steroids. Hormones immediately disappear …
Define Hormones.
These are chemical substances which are secreted from endocrine glands.
What is Exocrine glands .
The glands which have ducts that carry their secretion to specific places in the body.
What are Endocrine glands .
These are ductless glands which pour their secretion directly into blood .
Name two main components of Ecosystem ?
Two main components are :- BIOTIC ABIOTIC
Define Food web ?
A network of food chains in a community is reffered to as a food web.
Define Food chain ?
The transfer of materials and energy from their ultimate source in plants as producers through series of organisms each of which eats the smaller preceding one and is eaten by larger succeeding one is called Food chain.