State the type of integral, membrane-spanning protein that allows the facilitated transport of materials in and out of the cell.

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

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?

What type of plant is good for a bioassay and where can i buy it? i only have a month.