The atmosphere has 4 layers: the troposphere that we live in near the surface of the earth; the stratosphere that houses the ozone layer; the mesosphere, a colder and lower density layer with about 0.1% of the atmosphere; and the thermosphere, the top layer, where the air is hot but very thin.
Even though conditions in the external environment may vary widely, most organisms must keep internal conditions such as temperature and water content fairly constant to survive.
<h3>What is homeostasis?</h3>
The tendency to maintain a stable, relatively constant internal environment is called homeostasis. The body maintains homeostasis for many factors in addition to temperature. For instance, the concentration of various ions in your blood must be kept steady, along with pH and the concentration of glucose. If these values get too high or low, you can end up getting very sick.
<h3>Homeostasis features:</h3>
- Homeostasis is the tendency to resist change in order to maintain a stable, relatively constant internal environment.
- Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points.
- In contrast to negative feedback loops, positive feedback loops amplify their initiating stimuli, in other words, they move the system away from its starting state.
Learn what best describes homeostasis?
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Plants give off oxygen (that we breathe)and breathe in our carbon dioxide that we exhale
Answer:
spores have special chemicals that prevent ot from
