800,000 to 1.5 million nephrons on average per kidney
Answer:
D. Temperature increases and pressure decreases.
Explanation:
As you head toward the center of the Earth, temperatures increase exponentially. The Earth's core is a sphere of molten nickel and iron. As you move further and further away from the core, the crust cools to much colder temperatures all the way up to the surface. The Earth gets hotter as you move towards to center.
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Brainiest Please : )
Answer:
Oxygen
Explanation:
During aerobic respiration, oxygen combines with hydrogen ions to form water that is released as a by-product. The hydrogen ions are oxidized and oxygen reduced to form water. The glucose molecule is broken down into carbon dioxide, water and ATP energy the is used by cells. The carbon dioxide diffuses into the environment and is used during photosynthesis.
Answer:
Organ
Explanation:
The heart is an organ. It is made up of a few different tissues - cardiac muscle, conductive tissue, valves, vessels and connective tissue. These tissues are composed of different cells, but they work together to form a common function.
The heart is part of the cardiovascular system which pumps blood throughout the body. It includes the heart, blood vessels and the blood