5) Jets and airplanes are made of composite materials like fiberglass, but these materials, though lightweight, can be cracked and
punctured. Airplane manufacturers still rely on materials like aluminum because it is so
A)
dense.
B)
ductile.
0
malleable.
D)
soluble.

People who exercise for an hour may have lower cholesterol levels. is that a statement? a law? or a hypothesis?

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

Ayoung boy has been found and police are trying to locate his family they take a dna sample from him and begin collec dna samples from families who have missing children if police use dna samples only from the fathers, which type of dn technology can they use to identify the boy's parent? y-chromosome analysis omtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) o pcr (polymerase chain reaction) analysis