Where is the youngest crust material found on Earth? A. at the tops of
mountains

B. on the continental shelf

C. under continental
centers

D. along subduction
zones

E. at mid-ocean ridges

Attached earlobes are a reccesive trait in humans. in the tree below, people with attached earlobes are shaded in. which best describes labeled x in the tree? a: a female with one recessive allele b: a female with no recessive allelesc: a male with no recessive allelesd: a male with one recessive allele