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!

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.