B, the others are not testable under lab conditions.
I think that they both measure energy
Because most waste produced in the cell is toxic when it accumulates.
Hope this helps!
Answer:
The answer is b. Both of them are characterized by selective permeability.
Explanation:
- Option a. states that both, the nuclear and the cell membrane have two layers. This is only true for the nuclear membrane that consists of two lipid bilayers whereas the plasma membrane only contains one layer.
- c. Only the nuclear membrane has nuclear pores that connect the two bilayers. The pores act as protein channels or passages that allow transport of materials. The cell membrane does contain channel proteins or transmembrane proteins but not protein channels.
- d. The nuclear membrane separates nuclear contents from the cytoplasm whereas the cell membrane separates cellular contents from the extracellular environment.
1) The bean plant gets energy directly from the sun to make its food by photosynthesis
2) The squirrel's digestive system breaks down food for energy
Hope this helped. :)
