Answer:
In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells
Explanation:
The answer of the first question is double fertilization !!! I don't get the second question so.... comment if you have that question !!!
Answer:
what type of qustion is this
Explanation:
Humans, when exhaling release carbon which helps them to make sugar, and as a biproduct plants release oxegen which humans inhale.