The theory of fluid intelligence is based on the distinction between the fluid and crystal intelligences. The crystal intelligence is based on the knowledge that one has already and the the fluid intelligence is the intelligence to respond to future and unpredictable challenges.
I think that this distinction is very fitting and that the fluid intelligence was probably the one that drove human evolution; and perhaps is the more relevant of the intelligences.
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Answer:
Rectum is the last stage of digestion.
I think the biggest one would be 621
Answer: Increasing calories and water
Explanation: You need water to stay hydrated and for your body to handle everything and calories reduces heart diseases and weight control. So its important overall to have two of those things.
