Answer:
guard cells
Explanation:
they control the opening and closing of the stomata
Answer:
The structure labeled X in the diagram is a membrane protein.
Explanation:
Membrane proteins are integral parts of the cell membrane that enable the transfer of ions like sodium, potassium and chlorine and small molecules like glucose through the lipid bilayer. They differ from other types of cell proteins by their structure. As you can see on the diagram, hey form channels that enable specific ions or molecules to pass to the other side of the membrane.
Answer:
Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when organisms from one trophic level are consumed by organisms of the next level. More specifically, 90% of metabolic energy is used, so only 10% will be passed down to the next level.
Answer:
The answer is A ( No, the water looks clear but it may contain harmful bacteria or high levels of harmful chemicals in the water.)
Answer: B. The movement of air between two objects that are in contact.
Explanation: non, but I am 100% sure
