Sun is the primary source of energy. There exists some loss of energy when the energy transfers through successive trophic levels. ... So the energy would be always decreasing as we go to higher trophic levels, it can never d ecrease. Therefore, we cannot have an inverted pyramid of energy.
Answer:
A nerve impulse
Explanation:
It's important to note that these signals not only connect the brain and spinal cord, but they also send signals to muscles and glands. People talk about nerve impulses when they talk about the electrical signal that goes down an axon.
Answer:
People's homes might have not been built with electricity.
Explanation:
Nikola Tesla is the inventor that made electricity efficient and practical. Before his invention of alternating current, we relied on Edison's direct current, which was both dangerous and ineffective. (Important fact: Edison did not invent the light bulb!)
