Yes. Penguins do have knees.
A penguin's leg is composed of a short femur, knees, tibia, and fibula.
It may seem that penguin's don't have knees when they waddle. This is because the upper leg bones of penguins are covered by its feathers, making it appear as though they have very short legs.
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Answer:
Diffusion
Explanation:
Oxygen molecules can travel through the phospholipid bilayer using diffusion. Diffusion is when molecules travel from a higher concentration to a lower concentration.
Answer: Over time, the amount of precipitation decreases by 20 percent. It will affect the habitat because those species adapted to drier environments will replace species less suited to the new climate.
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Answer:
Monosaccharides are the monomers of carbohydrates, amino acids are the monomers of proteins, glycerol/fatty acids are the monomers of lipids, and nucleotides are the monomers of DNA.
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