Molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers.
The answer is A I just did this problem
High level items in a wbs are broken down or decompose into smaller tasks.
Work breakdown structure (WBS) is a chart that describes everything a project needs to achieve. Work breakdown structure is easy to understand as it organizes and breaks down complex activities into smaller levels. Each level of the work breakdown structure provides additional definition and information about the project.
Tilt of the axis and possibly directnes of the sun's rays
Answer:
The cell membrane is what lets things in and out of a cell.
Explanation:
