During what phase of the female’s uterine cycle is the uterine lining shed?

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

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

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of