Answer:
C.
Explanation:
Organism B and C look quite similar to each other and so it makes sense that organism B evolved from organism C
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Intrusive igneous rocks cool from magma slowly because they are buried beneath the surface, so they have large crystals.
Extrusive igneous rocks cool from lava rapidly because they form at the surface, so they have small crystals.
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Answer: Starch and cellulose are both polysaccharides, and most animals can break down starch for energy but not cellulose.
Explanation: The reason cellulose is hard to metabolize by most animals for energy is due to the beta acetal linkages of its glucose monomers. This makes these linkages inaccessible to many energy enzymes that hydrolyze glycosidic. These enzymes break down alpha linkages such as those in starch.
Answer:
The walls of the arteries are very thick. They are made up of thick elastic fibres and smooth muscles.
Arteries can be described as blood vessels which function to transport blood from the heart to other parts of the body. The blood that the heart pumps is high in pressure. Hence, the thick walls of the arteries are adapted to carry blood that has high pressure.
The other blood vessels do not have as thick vessels as the arteries.
