Help me with bio please

Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256

Match the following items 1. rr 2. rr 3. identical alleles 4. unlike alleles 5. rr ()homozygous, recessive ()homozygous definition ()heterozygous, dominant cell ()heterozygous definition () homozygous, dominant cell

Which number represents a basic ph, 4 or 9? numerical answers expected! answer for blank 1: i'll give