In invertebrate chordates, the notochord is eventually replaced by bone or cartilage.
a. true
b. false

By water evaporation from the leaves is created a negative pressure at the top of the tree that promotes the ascension  of the water through channels that are called xylem. there are also two molecule forces that are involved: the intra-water molecules cohesion (water molecules stick to each other) and the adhesion when the water molecules stick to the channels they are running in. this is what enables water to go from the roots to the top of a tall tree.

Well you see i am mr murphy from palm harbor university high florida and i am telling u that the answer is . a bird said that the new car. its ali alien aligator aligators alive alkabee all the way to raise ur gpa guys galaxy george and everyone they can beat ur black