When a neuron is not transmitting a signal the charge is: a. No charge b. negative to the external environment c. Neutral to the external environment d. positive to the external environment

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

Why is it important to study each branch of earth science?