In the cross you modeled on the previous screen, an offspring may have either purple flowers or white flowers. How does meiosis function to produce this variety of offspring?

All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time

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

The tubes transporting minerals and water upward are called ?