Exocytosis is basically when your vesicles transport materials out of a cell.
Once the neurotransmitters are synthesised and packaged into vesicles, they are transported until the vesicles reach the cell membrane. Then the 2 bilayers rearrange themselves so that the vesicles are able to fuse with the membrane . Once that occurs, the neurotransmitters will spill out whatever it was carrying.
Two examples of exocytosis are
1) your nerve cells releasing transmitters (explained in the description above)
2)your T cells sending vesicles filled with enzymes to viral infected cells
Answer:
c) Climate change, overuse of groundwater, and water pollution
Climate change: Increase in temperature leads to and increase in water evaporation and also affect the amosphere's ability to keep water in
Overuse of water: Many people living in more priviledged countries consume excess water than needed (eg: some people leave the tap running while brushing their teeth)
Water pollution: I don't think I need to explain this one
Nitrogen-fixing bacteria are microorganisms present in the soil Or in plant roots that change nitrogen gases from the atmosphere into the solid nitrogen compounds that plants can in the soil
There's a malfunction in the tiny capsule-shaped structures—called mitochondria—that power his cells. These abnormal mitochondria cause extreme fatigue and weakness in his legs, trouble breathing and a host of other problems.
