Most erosion is caused by winds breaking up rock
Answer:
They are bilaterally symmetrical and have a soft body sometimes covered with a shell.
Explanation:
Mollusks are bilaterally symmetrical organisms which means only two planes can divide their bodies into two identical halves. They are triploblastic organisms with organ system level of body organization. Mollusks have a soft body that is usually covered by a dorsal shell composed mainly of calcium carbonate. The foot is a broad, flat and muscular structure located ventrally. Foot serves these organisms in locomotion. The various body organs are present as visceral mass located above the foot. The visceral mass is covered by a thin sheet of tissue called mantle. Example: clams, snails, and squids.
So In biology, a mutation is an alteration in the nucleotide sequence of the genome of an organism. So what would you look up that interests you
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