Polyploidy is the term that describes the chromosomal abnormality of having extra chromosomes.
Answer:
a
Explanation:
the kidney secretes an enzyme called rennin that helps to control blood pressure is not true the kidney does not secret rennin
Definition-change in a population or species over time.
Buying a heater, then your body will stay warm
Dew-point: <span>the temperature to which air must be cooled, at a given pressure and water-vapor content, for it to reach saturation; the temperature at which dew begins to form.</span>
