Scientific investigation questions please help!

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

Pink fur (p) is dominant to purple fur (p) in hamsters. two heterozygous pink hamsters are crossed. what is the probability that these two parents will have an offspring with purple fur? 2/4, 1/2 or 50% 1/4 or 25% 3/4 or 75% 4/4 or 100% there is no chance for this type of offspring

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?