Label the photo below.

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

Locards exchange principle implies all of the following except

Color blindness is a recessive sex linked human trait. if a color blind father and a mother with normal color vision have a color blind son what must be the mothers genotype? a. xn yn b. xn xn c. xn y d. xn xn