How does the nervous system affect the excretory system? A the kidneys are controlled by signals from the brain
B the excretory system removes waste from nerve cell
C action potentials remove waste from blood
D nerves connect the kidneys to the bladder

b) the inside picture would look at a very high temperature in a very low ph

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.