Question

Multicellular organisms such as humans have ___________ system to control various activities of the body.

• A. One
• B. Two
• C. Three
• D. Four

Answer 1

The correct option is B

Two

The correct option is B.

Explanation of correct option:

Multicellular organisms such as humans have 2 systems to control various activities of the body. These systems are:

1. Neural Co-ordination - It involves the network of neurons which helps in the fast and short-lived transmission of signals. Example - drinking water.
2. Endocrine Co-ordination - It involves the secretion of hormones that helps in the slow and long-term transmission of signals. Example - growth of the body.

Humans have two systems to control various activities of the body.