I think it’s “a Protein molecule”
I can’t see the picture but it would be gravity going down
The correct answers are: groundwater, wetlands, rivers, ponds .
Fresh water includes all water excluding seawater and brackish water. Fresh water is not the same as drinking water.
It is important for many organisms as habitat and living resource, plants and most mammals requires fresh water to live.
Answer:
mate together successfully in nature.
Explanation:
mark me brainliest please
Receptor proteins are molecules inside a cell or on its surface on which ligands bind. A ligand is any substance (e.g. a hormone, drug, functional group) that binds specifically and reversibly to another chemical entity to form a large complex.
Receptor proteins found inside a cell are called internal receptors or intracellular receptors or cytoplasmic receptors.
They act as regulators of mRNA synthesis to mediate gene expression.
When a ligand binds to an internal receptor, the receptor changes in conformation and exposes on itself a site that can bind to DNA.
The receptor joined to the ligand moves into the nucleus where it binds to a specific site on the cell DNA. Once bound, it promotes the process of transcription where information is copied from DNA to mRNA
