Not sure if I'm correct but my best guess is the cell membrane seeing as it surrounds the cell itself and is responsible for allowing certain molecules to diffuse in or out of the cell. Good Luck! :)
For him to write down his adventures
I'm pretty sure these include light availability, oxygen levels, water movement, salinity, density and pH. These conditions often vary from habitat to habitat and will either support or limit the life processes of the marine organisms living there.
Hopefully that's right.
When there are double lines in the lanes means you can not change lanes.. only when there is breaks in the lines can you change lanes
Answer:
the answers are a&d sorry if #1 isnt correct
Explanation:
