Answer:
Early prophase: the DNA and centrioles duplicate and the centioles move and form the mitotic spindle. Middle prophase: microtubles from the spindle attach to the chromosomes. Late prophase: the chromosomes move to the equatorial plane.
Explanation:
Sodium, potassium, chloride and calcium ions are important for establishing the resting potential of the cell. The sodium-potassium gradient is maintained by a pump which transports 2 potassium inside the cell and 3 sodium ions outside the cell.
Answer:
C) cytoplasmic determinants
Explanation:
Cytoplasmic determinants are special molecules which play a very important role during oocyte maturation, in the female's ovary.
C
The respiratory system removes the waste carbon dioxide produced from aerobic respiration in the body.
If two populations of birds stop interbreeding because of a difference in song patterns this would be described as behavioral isolation.
