Predict the next digestive system organ in the following sequence:

mouth, pharynx, esophagus, stomach,

a)
liver

b)
kidneys

c)
small intestine

d)
large intestine

Why do we perceive objects as retaining their brightness under different lighting levels?

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?

1. fold your hands together so your thumbs cross over ,and look at your thumbs. which thumb feels most "comfortable" on top is actually controlled by a gene. the left thumb folding over the right thumb is a domi