Receptors detect changes in the environment. For a stimulus to elicit a response, certain cells must have an appropriate receptor. Stimulation of the receptor initiates a specific signal pathway.
There are some organelles which are found in plant cells but which are not found in the animal cells, these structures will provide a positive identification of a plant cell under a microscope.
The structures which would provide a positive identification of a plant cell under a microscope are CENTRAL VACUOLE, CHLOROPLAST [PLASTIDS] AND CELL WALL. These structures are only present in plant cells.
Answer:
DNA
Explanation:
RNA is not a double helix
Uracil is on the RNA, this is a picture or DNA. Uracil is just one of the nucleic bases
This is not a monomer; it's actually a polymer
It is DNA because it is a double helix structure held together by the four nucleic bases.
was thinking it's community. hope this is right and helps out
