<span>Genetic material is passed down from parents to offspring by DNA. The DNA copies itself and the number of chromosomes is split in the half from 46 to 23 chromosomes.</span>
Answer:
The concept of showing emotions towards one in reaction to something said, generally a negative statement causes attitude.
Explanation:
Answer:
More oxygen is needed to produce more energy, and more carbon dioxide waste must be removed from the body.
Explanation:
The skeletal system supports body structures; muscular system carries out the nerve commands to produce movement.
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