GENERAL HISTOLOGY

CONNECTIVE TISSUE GLAND

ENDOCRINE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In order to maintain balance within their environment, organisms must:
A
constantly respond to internal and external stimuli
B
eat every day
C
avoid competition with other organisms
D
move around as little as possible
Explanation: 

Detailed explanation-1: -Homeostasis refers to the relatively stable state inside the body of an animal. Animal organs and organ systems constantly adjust to internal and external changes in order to maintain this steady state.

Detailed explanation-2: -Through its receptors, the nervous system keeps us in touch with our environment, both external and internal. Like other systems in the body, the nervous system is composed of organs, principally the brain, spinal cord, nerves, and ganglia.

Detailed explanation-3: -A stimulus can be external, meaning it occurs outside the organism, like the sound of thunder and the flash of lightning. A stimulus can also be internal, or from within the organism itself, like thirst or hunger. Both external and internal stimuli can cause a response, or reaction, from an organism.

There is 1 question to complete.