What is the pigment that provides skin coloration? * 1 point
hypodermis
follicles
melanin
keratin

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?

The polio virus can cause skeletal muscle paralysis by destroying neuron cell bodies. what area of the spinal cord is destroyed

The (blank) states that all loving things are made of cells.