Because all those energy sources are natural and will always be there, when ever there is a need for extra energy.
Answer:
Glucose, for your regular cellular respiration
Explanation:
The start of celllular respiration is glycolysis breaking down glucose. It usually is glucose, but lipids, carbohydrates, and proteins can be used too.
Answer:
The number of offspring produced is often related to the amount of parental care. Typically, the higher fecundity, the lower the amount of time parents devote to caring for the offspring.
Answer: nervous system
Explanation:
The nerves send impulses either from the brain or spinal chord for the body organs to coordinate
