The kidneys can regulate water levels in the body; they conserve water if you are dehydrated, and they can make urine more dilute to expel excess water if necessary.
C maybe I don’t know which ones the male or female !
Answer: 320 phosphate groups.
<u>Each nucleotide of DNA contains one phosphate group attached to it</u>.Therefore if there <u>were 160 nucleotides in a strand;,definitely each nucleotide of the strand must contain one phosphate group, therefore 160 phosphate groups. must be present.</u>
However, a DNA molecule must contain double strands, therefore 160 multiplied by 2 should give 320 phosphate groups in the alien DNA.
Explanation:
