Which two statements best describe fertilization and meiosis in the life cycle of plants? I. These processes are part of the life cycle.
II. These processes produce gametophytes.
III. Fertilization produces a zygote, and meiosis produces haploid spores.
IV. Fertilization is used only by seedless plants; meiosis is used only by seed plants.

The direction a chemical reaction occurs is represented by an arrow 

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.

It's important for a woman to know she is pregnant within the first trimester so she won't consume any alcohol or cigarettes which will harm the baby.

B. absorbs violet lightto get absorb sunlight for photosyntesis