The region of the human alimentary tract that has both the largest population of bacteria and the greatest species diversity is the the colon.
<h3>The normal flora of the alimentary tract</h3>
Normal flora are those microorganisms that resides in a living organism without causing it harm or diseases.
These normal flora become established in different parts of the body from birth such that the normal flora found in the mouth is not the same as the one found in the colon of the alimentary tract.
From research works, the large intestine (colon) is known to contain 100 billion per milliliter of fluid culture.
The massive numbers of bacteria in the large intestine (colon) creates a great special variation in the flora. The streptococci and lactobacilli found in the colon often adhere to cells by means of capsules surrounding the bacteria.
Therefore, the region of the human alimentary tract that has both the largest population of bacteria and the greatest species diversity is the the colon.
Learn more about normal flora here:
brainly.com/question/10641594?source=archive
Answer:
Four great mass extinctions.
Explanation:
Phanerozoic era is a period of time that occured in over 542 millon years. It is an era in geological history that can be divided into 3 eras.
a. Paleozic era: This era occured between 542 to 251 million years ago
b. Mesozoic era: This era occured between 251 to 65 million years ago
c. Cenozoic era:This era pictures between 65 millon years ago till this present day.
There has been been four great mass extinctions over the past 500 million years that claimed 40 percent or more of these genera during the Phanerozoic era and they are:
a. Ordovician Mass Extinction
b. Devonian Mass Extinction
c. Permian Mass Extinction.
d. Cretaceous-Tertiary (or the K-T) Mass Extinction.
20% clay, 40% silt, and 40% sand
1.Hydrogen Family
2. Nonmetal
3.Carbon Family
4. Nonmetal
5 Halogen
6. Metalliod
7. it is located on the far right side of the periodical table.
8. Diatomic Molecule
9.Halogens
10. Metallods
11.noble gases
12. Non metals
13.semi conductor