Answer:
Messanger RNA
Explanation:
Messenger RNA carries instructions from the nucleus to the cytoplasm. The other two forms of RNA, ribosomal RNA and transfer RNA are involved in the process of ordering the amino acids to make proteins. RNA is a nucleic acid, like DNA, but differs slightly in its structure.
Circle is phosphate group
Square is Sugar
And the hexagon shape is nitrogenous base
All of the above is the answer
Answer:
The tiny muscles that make up the iris, known as the circular and radial muscles, relax and contract to maintain a fairly constant level of light entering the eye. In bright light, the circular muscles contract whilst the radial muscles relax. This causes the pupil to constrict and less light enters the eye.
Explanation:
