There are three sources of genetic variation: mutation, gene flow, and sexual reproduction. A mutation is simply a change in the DNA.
My suggestion is to take plenty of notes and write definitions
Answer:
mass
Explanation:
the chemical formula for water is H20 which means every molecule of water has 2 atoms of hydrogen and one atom of oxygen. Here comes the key part. from the periodic table of elements one sees that one mole of hydrogen atoms weight 1 gram while one mole of oxygen weights 16 grams.
<span>a. Acoelomates. Flatworm is a type of acoelomate animal; they have no body cavity or ceolom but they have </span>mesenchyme in their body cavity that surrounds the gut and organs in one solid body.
Hey!!
Answer is......
c.ATP
energy is stored in tge form of ATP molecules unless it is oxidised by cells to liberate energy ....
HOPE IT HELPS YOU '_'
