The heart works as
A. One pump
B. Two pumps

1 and 6 for apex

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.

ask your friends for what they got then copy it down if you don't have any friends which is fine than google it or pay the teacher

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'