The study of the structure and function of various organs or parts making up a particular organ system it is a fill in the blank anatomy and physiology question

Anita thinks that she has heterozygous alleles for red hair.if she is correct, which of these diagrams best illustrates anitas alleles pf red hair

The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction

Are the layers of rock above and below the coal older or younger?