Answer:
B
Explanation:
It represents the greatest amount of cell differentiation for the newly formed organism.
Here all the organs and system get initiation and cell differentiate to form various organs.
Answer:
thats weird contact your teacher if you have anymore issues:)
Explanation:
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B. law of conservation of mass
This is why the total amount of and element before and after a chemical reaction is constant.
Answer:
In animals, oxygen combines with food in the cells to produce energy for daily activity and then gives off carbon. The carbon combines with oxygen to form carbon dioxide (CO2) and is released back into the atmosphere as a waste product when animals breathe and exhale.