The difference that exists between the inner and outer planets is - D. None of the inner planets have rings, whereas all the outer planets have rings.
Planets in the solar system are divided into two groups on the basis of distance from the sun are Inner planets and outer planets. The inner planets are closer to the sun compared to the outer planets.
Inner planets:
- include four planets - Mercury, Venus, Earth, and Mars.
- Also called terrestrial planets
- small and rockier
- very less or no natural satellites
- No rings around them
Outer planets:
- include Jupiter, Saturn, Uranus, and Neptune
- called gaseous planets
- larger and gaseous (hydrogen or helium)
- numerous satellites
- found rings around them.
Thus, the correct option: D. None of the inner planets have rings, whereas all the outer planets have rings.
Learn more about planet ring systems:
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The best option would be the letter A. They supply freshwater to support life on Earth.
Freshwater is the ultimate source of water in the terrestrial biome. It is not only important in the terrestrial biome but also in the aquatic ecosystem as it helps in transporting nutrients (ex. river is connected to the ocean).
I think your answer is mitosis
Answer: Option (c) is the correct answer.
Explanation:
A long hydrocarbon chain that consists a terminal carboxylic group is known as a fatty acid.
An unsaturated fatty acid consists a double bond within the fatty acid chain. If a fatty acid contains more than one double bond then it is known as polyunsaturated fatty acid.
For example, oelic acid has chemical formula 
is an unsaturated fatty acid.
Therefore, we can conclude that option (c) represents an unsaturated fatty acid.
