Question

Which of the following tissues provide control and coordination in animals?
A. Nervous and skeletal
B. Muscular and skeletal
C. Muscular and transport
D. Nervous and endocrine

Answer 1

Hint: In animals, the nervous system plays a vital role by providing control and coordination mechanisms. Control and coordination help organisms to receive information from the surroundings and respond appropriately.

Complete answer:
Control refers to the power of regulation and restraining through which something can be started, slowed, or stopped. Whereas coordination refers to the working together of various organs of the body to respond properly to the external stimulus.
For control and coordination in humans, two main systems are responsible i.e. Nervous system and Endocrine system. Both systems work in a synchronized manner.

1. Nervous system: It is a collection of specialized cells known as neurons and nerves which receives and transmits various signals from one part of the body to another.
It is differentiated into two different parts:
 A. The central nervous system (CNS) is further divided into the spinal cord, and the brain,
 B. The Peripheral nervous system (PNS) is made up of nerves which further extends between CNS and body parts. It helps in controlling the voluntary actions of the body.
Neurons- These are the basic units of the nervous system that make up the nervous system and consist of three main parts- cell body, dendrites, and axons. Neurons transmit the signals to other cells through axons, which cause chemicals i.e known as a neurotransmitter.
The nervous system coordinates all the systems of the body. It controls all the activities such as thinking, behavior, and actions.

2. Endocrine system: It is composed of a series of glands that secrete various chemical substances referred to as hormones that regulate body functions. They comprise ductless glands that evoke certain responses in the body. These glands secrete their secretions directly into the bloodstreams.
The endocrine system is responsible for chemical coordination and integration for regulating various body functions.

Hence, the correct answer is option (D).

Note: Nervous and endocrine system works together for the initiation and control of movement and all physiological movement. Hormones maintain homeostasis and even control their emotions. Whereas the nervous system involves memory, intelligence, etc.