Just like other cells, the part of the bacterium that is able to interact with its outside environment is its cell membrane. Generally, the main function of the cell membrane is for barrier and protection. This decides which molecules will be allowed to permeate or not. Hope this helps.
Answer:
B, food production
Explanation:
The plant is producing food for itself
If it is more salty it means that the water is hypertonic to the hypotonic potato and if the water is less salty then the water is hypotonic to the hypertonic potato
Answer:
B. mutualism
Explanation:
Legume plants have the ability to fix atmospheric nitrogen, due to a mutualistic symbiotic relationship with bacteria found in root nodules of these plants.
