1. Behavioral
2. Structural.
3. Structural.
4. Behavioral.
5. behavioral.
6. Functional
I did my best on these, hope it helps!
It would be B. i hope i helped you out, have a nice day
When cells communicate by the signaling process, one cell produces a signaling molecule that must be received by the signal receptor on or in the responding cell. Signaling molecules are often called ligands, a general term for molecules that bind specifically to other molecules (such as receptors).
Most of the infrared radiation to the Earth is absorbed and transmitted towards the Earth's surface.