Explanation:
water moves through the hydrosphere in a cycle. Water collects in clouds, then falls to Earth in the form of rain or snow. This water collects in rivers, lakes and oceans. Then it evaporates into the atmosphere to start the cycle all over again
Toxins are microbial proteins with a strong specificity for a target cell that exert extremely powerful and toxic effects on that cell.
<h3>What are toxins?</h3>
Toxins are molecules that are produced by certain organisms which are deadly to other organisms when these organisms come in contact with them.
Toxins are produces mostly by microorganisms as well as some plants and animals such as fishes.
Toxins are mostly proteins products are usually specific for their targets cells.
Therefore, microbial proteins with a strong specificity for a target cell that exert extremely powerful, and sometimes deadly, effects on that cell are called toxins.
Learn more about toxins at: brainly.com/question/1235358
Accounting unit of ecological protection
Answer:
The correct option is : c. in the Mississippi river valley
Explanation:
Histoplasmosis is a fungal infection caused by the Histoplasma capsulatum fungus. This disease mainly affects the lungs of an individual. The acute <u>histoplasmosis</u> is generally characterized by cough or influenza. Whereas, the symptoms of chronic histoplasmosis resemble tuberculosis.
In the United States of America, about sixty to ninety percent of the total population in Mississippi River valleys and Ohio have suffered from Histoplasmosis.
<u>Therefore, in the United States of America, the highest number of histoplasmosis cases occur in the </u><u>Mississippi River valleys </u><u>and</u><u> Ohio.</u>
