The answer is D
Remember onion cells are plant cells
Cheek cells are human cells
Both of them are eukaryotes
The difference between plants and animal cells:
Plant cells
Have a cell wall, central vacuole, dna floating in cytoplasm, no membrane bound organelles
Animal cells
cell membrane no cell wall, nucleus, membrane bound organism
Alveoli is the answer.
<span>In humans, once carbon dioxide reaches the capillaries in the lungs, it is diffused into the Alveoli.
Hope this helps! :) </span>
Answer:
Both (b) and (c)
Explanation:
Fats, steroids and waxes are some of the most common types of lipids. Lipids are non-polar hydrocarbons because of the presence of non-polar carbon-carbon and carbon-hydrogen bonds in there structure.
Generally, polar molecules are soluble in water while non-polar molecules are insoluble in water, hence, lipids do not dissolve in water. There non-polarity also makes them a suitable component in the selectively permeable biological cell membrane.
