<span>Model construction.....</span>
The answer is 4Fe+3O2→2Fe2O3
No quite.... Homeostasis is the maintenance of constant internal environment
For example the constant internal temperature of our body is 37 degrees Celsius or 98.6 degrees Fahrenheit. If our body increases or decreases some changes happens to your body in order to return the normal body temperature. If your freezing your blood vessels near the skin constricts so that the heat running through your blood doesnt leave your body because you are in need of heat.
Answer:
The body has two lines of natural defense to protect against infection. The first are physical barriers, such as the skin, body secretions and mucous membranes. The second line of defense is the immune system. Specialized immune cells coordinate and execute attacks to kill germs that make it past the body's physical barriers.
A single-celled prokaryotic organism that is generally free-living and of few micrometers in length is bacteria. They are very small in size that cannot be seen without a microscope.
bacteria will be present in 100 milliliters of water.
<h3>How to calculate the number of bacteria?</h3>
Given,
- 1 milliliter = 1,500,000 bacteria
- 100 milliliter = ?
Therefore, option E is correct.
Learn more about bacteria here:
brainly.com/question/2490932