URGENT Which of the following best explains why there are seldom more than five trophic levels in a food chain? O The ecosystem contains too much biomass living mass)

O Most carnivores function at more than one trophic level
Top cami vores are too few in number to prey effectively

O Energy is lost from each trophic level

Imagine a person stepping on a pin and pulling his or her foot away. look at the reflex arc of this scenario below. which statement best describes the image? a)the sensory nerve carries the signal from the effector to the interneuron, and the motor neuron carries the signal to the receptor. b)the motor nerve carries the signal from the receptor to the interneuron, and the sensory neuron carries the signal to the effector. c)the sensory nerve carries the signal from the receptor to the interneuron, and the motor neuron carries the signal to the effector. d)the sensory nerve carries the signal from the receptor to the motor neuron, and the interneuron carries the signal to the effector.