Answer:
50
Explanation:
egg cells and sperm cells contain half of the chromosomes of a regular cell in an organism, so the number of chromosomes in a heart cell must be double of the chromosomes in a egg cell.
Dehydration synthesis :) it means that monomers (like glucose or lactose) when bonded together release water molecules
Answer:
air masses
Explanation:
a front forms where two air masses of different temperatures meet each other
Hope that help