C) To gather info about the natural world, to explain natural phenomena, and allow reasonable predictions of future events
Answer:
1.Ions
2. Neurotransmitter
Explanation:
The neurons transmit the signals in the form of the electrical form and the chemical form.
The electrical signals are generated in the neurons as a result of the flow of ions or electrically charged species to maintain the equilibrium.
The signal from one neuron to another neuron takes place in the form of the chemical signal that is the chemical stored in the terminal of the axon called neurotransmitters.
Thus, ions and neurotransmitters are correct.
The respiratory system brings oxygen into the lungs when you breathe. The digestive system breaks food down into nutrients such as glucose. Now the circulatory system enters the picture. ... The circulatory system also transports carbon dioxide waste from the cells to the lungs of the respiratory system
Answer:
They would freeze and it would be hard to find food because they are not accustomed to the different climate. They would also be easy prey because of the environment change they are not equipped for.
It's water vapor, which is gas that is lighter than nitrogen or oxygen.
