Answer:
Veins are blood vessels in humans, and most other animals that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. In contrast to veins, arteries carry blood away from the heart.
Explanation:
Answer:
D: kinetic
Explanation:
Kinetic energy is the energy of motion. This can be the motion of large objects (macroscopic kinetic energy), or the movement of small atoms and molecules (microscopic kinetic energy).
Answer:
the atomic number or the number of protons in the atom
Explanation:
Neurotransmitters are released. hope this helps ;)))
answer
Fossil evidence clearly shows that life is old and has changed over time. The study of anatomical features of animals of different species. The process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth
