The cell is protected from the outside environment by the

cell membrane
cytoplasm
shell
vacuole

question 9 (multiple choice worth 2 points)

which organelle is responsible for controlling the cell's activities?

mitochondria
ribosome
nucleus
endoplasmic reticulum

question 10 (multiple choice worth 2 points)

the ribosomes are responsible for what?

digestion
storage
manufacturing proteins
transportation within the cell

8) A) cell membrane

9) C) Nucleus

10) C) Manufacturing proteins

Hope this helps!

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.