It is C as to have freckles you have to have a dominant and recessive gene (can be worked out using a punnett square) as the child has 50% of not having freckles like his dad or 50% having freckles like his mom.
male genes(homozygous recessive)
f f
female F Ff Ff
genes
f ff ff
so ff is not having freckles and being homozygous recessive, or Ff having freckles and being heterozygous.
So the child is heterozygous so C
Answer:
D) a scientific journal about chemistry and a biography of a famous chemist
D.) Both are circumstantial evidence....
Answer:
Water evaporates and ends up in clouds high up in the atmosphere. Since it is colder in the upper atmosphere, the clouds condense.