Answer:
1. Signaling molecule
2. Signaling receptors
Explanation:
Hormones, growth factors, neurotransmitters, etc. serve the function of signaling molecules for cells. These molecules are released by one cell and bind to the receptors present on/in the target cells to elicit the desired response. Thereby, the signaling molecules serve in cell-cell communication.
For example, insulin hormone synthesized and released from beta cells of pancreas binds to its cell surface receptors present on the surfaces of liver cells and muscle cells to stimulate the uptake of the glucose from the blood.
Likewise, neurotransmitters released from the presynaptic neuron bind to receptors present on the membrane of postsynaptic neuron and serve to carry the nerve impulse to the postsynaptic neuron.
It's G, since plants need carbon dioxide to perform photosynthesis
The cell starts to collapse without support, the nucleus can't contain the army so it Bursts
I would ask the patient if he/she thinks about harming his/her self and how severe the depression is ie mild moderate or severe and how does it manifest itself to the person ie loss of initiative difficulty making decisions being negative about oneself, how long they have been depressed for, and also who are the significant people in their lives ie do they live with loved ones, have children, grandchildren etc ie important people to live for.
