Scientists use only certain parts of a person's DNA to make DNA fingerprints
because those parts
O
A. code for all of the human proteins
are unique to the person
c. are taken only from skin cells
D. contain only certain bases
SU

answer; blank(1); cervical; blank(2); lumbosacral;

answer: d. load

a river's load refers to the natural phenomena in which the sediments, rocks   stones, boulders and other deposits are removed and picked from the bottom bed of the river due to the abrasion resulted by the high speed water current.