1. The heart muscle cells need plenty of oxygen and nutrients so it needs its own blood supply.
2. The heart needs to have a blood supply to get ride of wastes.
Hope that helps. -UF aka Nadia
Answer:
D
Explanation:
Insulin helps the body maintain a healthy blood sugar level. If left untreated, diabetes causes blood sugar levels to rise to dangerous levels.
The chemical equation of cellular respiration is C6H12O6 + 6 O2 + 6 H20 -------> 6 C02 + 12 H20. Meaning glucose, oxygen, and water go into the process with carbon dioxide and water being produced by cellular respiration.
Hope this help
Answer:
The atomic number = number of protons = number of electrons.
The atomic mass - the atomic number = number of neutrons.
Protons - 7
Electrons - 7
Neutrons - 9
Element - Nitrogen
Explanation:
Answer:
C. A law describes the observation, while the theory explains the how or why.
Explanation:
So in general science, an observed phenomenon is the description of the scientific law. However the explanation of the phenomenon is called a scientific theory. Which would make this answer: c. A law describes the observation, while the theory explains the how or why.
Hope this helps!
