Answer:
Human blood contains a buffer of carbonic acid (H2CO3) and bicarbonate anion (HCO3-) in order to maintain blood pH between 7.35 and 7.45, as a value higher than 7.8 or lower than 6.8 can lead to death. In this buffer, hydronium and bicarbonate anion are in equilibrium with carbonic acid.
Answer:
Which terms and phrases describe structures or actions of the CNS?:
- Brain
- Spinal cord
- Relay neurons
Which terms and phrases describe structures or actions of the PNS?
- Cranial nerves
- Spinal nerves
- Peripheral nerves
- Sensory neurons
- Motor neurons
Which terms and phrases describe structures or actions of the CNS and PNS?
- Nerve impulses
- Dendrites
- Axon
- Synapses
Explanation:
Answer:
Heating an atom excites its electrons and they jump to higher energy levels. When the electrons return to lower energy levels, they emit energy in the form of light.
Explanation:
hope this helps plz mark brainliest
Answer:
Explanation:
The two lower, larger chambers of the heart are called _ventricles._
