Answer:
D
Explanation:
Photosynthesis by tiny marine plants (phytoplankton) in the sunlit surface waters turns the carbon into organic matter. Many organisms use carbon to make calcium carbonate, a building material of shells and skeletons
Answer:
The septum
Explanation:
The septum is a thick wall of muscle that divides the heart. It separates the left and right sides of the heart.
Answer:
Going from a gas to a liquid is called condensation - <u>TRUE</u><u>.</u>
Answer:
The number of protons equals the atomic number
Explanation:
the atomic number is the same number of neutrons and electrons. Neutrons would be considered mass number
Passive needs no energy cause it going high to low and active needs energy cause it’s going low to high.
