Answer:
While protozoans evolved early and have survived to the present day as unicellular organisms, they have undoubtedly undergone considerable evolutionary change. So the role they have is rather big because they where here from early days. Animals could of adopted and learned from them
Explanation:
If a molecule is too big or has a charge it will not diffuse through the membrane by passive transport.
The Humerus belongs to the arm bone
Answer:
False
Explanation:
Buoyant forces act on objects that are submerged in fluids. This includes gases and liquids.
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