Which of the following characterizes a symbiotic relationship? A. a close interrelationship where both species benefit B. a close interrelationship where one species benefits and the other is not affected C. a close interrelationship where one species benefits and the other is adversely affected D. an intimate relationship between members of two or more species E. All of these choices are correct

All of these choices are correct. (E)

Explanation:

A symbiotic relationship is defined as the close interrelationship between two or more species. This relationship is important for ecosystems and, many organisms and provides balance to the environment.

There are 3 types of symbiotic relationship:

1) Mutualism: In this relationship both get benefits.

2) Parasitism: In this relationship, one species gains and other species suffer.

3) Commensalism: In this relationship one species benefits, and the other is not affected.

tissue

explanation:

it is actually formed by geoup of cells which is tissue

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.