What is the source of all energy in the pyramid?

Sunlight is your answer.

The whole pyramid must be sustained by the base. Without the base, the whole pyramid would not exist. The same is for the food pyramid. The producers must be present for consumers to be able to survive. Without it, the whole pyramid would collapse. Without sunlight, the plants would die. Without plants, the herbivores would die. Without herbivores, the carnivores would die, etc. etc.

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i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus