Answer:
The plasma membrane is selectively permeable
Explanation:
hydrophobic molecules and small polar molecules can diffuse through the lipid layer, but ions and large polar molecules cannot. Integral membrane proteins enable ions and large polar molecules to pass through the membrane by passive or active transport.
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Exchange of gases in fish is very efficient because of: the large surface area of the gills. the large surface area of the blood capillaries in each gill filament. the short distance required for diffusion – the outer layer of the gill filaments and the capillary walls are just one cell thick.
Carbon fixation!!! it is the process speeded up by ( rubisco) ... and this type of light energy, interacts with photosynthesis!
Answer:
Purpose means is defined as to plan or intend to do something.
Explanation:
Example is An example of purpose is people meeting to discuss how to cut costs within a company.