3. Describe the structure of the cell membrane
Recognize the structures in
the diagram.

4. Describe equilibrium.
- Do molecules still move?
Explain why or why not.

5. What is diffusion? Why
does diffusion occur?
- What?
- Why?

6. What is osmosis?

7. Define semipermeable.
- Define:

8. What is Passive Transport?
- List and describe the 3 types.
1)
2)
3)

9. What is Active Transport?
List and describe the 3 types.
1)

b is the best answer for this question.

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this

straight probes are used primarily for measuring flow as it is approaching the test area. its geometry allows the probe to be mounted so that it is in the direct line of airflow.

answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.