The answer is R horizon.
The soil is made up of layers, called horizons, which are parallel to soil crust. These horizons are from top to bottom:
O - contains organic matter.
A - contains organic matter mixed mineral matter.
B - contains accumulated mineral or organic compounds.
<u>C</u> - consists of parental material.
<u>R</u> - consists of bedrock, masses of hard rock.
Thus, R horizon is below the C horizon.
If you study biology, you should know that its goal is the study of life. So the answer is D.Measuring the rate of squirrel births in a woodland habitat
Answer:
Dissolved substance...
Explanation:
It is because when something dissolves it takes the place of a molecule because energy and not be created nor destroyed, including the energy in the substance that is now in a different form, therefore the more it dissolves the less water molecules there are gonna be
To solve this, you would need to identify the number of amino acids (20) you are dealing with and the number of positions (8) that are available in your polypeptide. so that would come out to 20 x 20 x 20 x 20 x 20 x 20 x 20 x 20 = 20^8
Answer: shingles, varicella-zoster virus
Explanation:
It should be noted that shingles usually occur with old people and it causes a painful rash when the chicken pox virus is reactivated in the body.
Since the man is old and has painful fluid-filled vesicles that have begun crusting over in a wide band across the left side of his lumbar area and also has a history of chickenpox, it's very likely it is shingles.