Answer:
Water based fluid
Explanation:
The internal environment consists of water based fluid in which the cells of the body present. A fluid called interstitial fluid or tissue fluid bathes the cells and provides essential nutrients to the cell. The human skin has fatty layers that helps to maintain internal heat which is produced by the body when the outside environment is cold. When there is cold in the environment, people lives in warm shelters and wear warm clothes in order reduce the impact of cold environment.
When the upper water layers warm in the summer months, they become separated from deep water by a transition zone known as a thermocline. In a thermocline, the temperature decreases rapidly with small increases in depth. This phenomenon linking temperature change with depth is called temperature stratification.
It's called appendages if that is what you need
In Unicellular-reproduce organisms while Multicellular-repairs
dead or damaged cells. They both help
develop and grow. in the multicellular
this organism is made up of 2 or more cell they can be made up to trillion if
cells, it is much more complex than the unicellular. They reproduce asexually and the cells cannot
live outside the organism, they perform specialized functions an example:
nerves.
