Their location, or layer
The cells produce three germ layers:
endoderm- becomes the gut
mesoderm- becomes muscle, skeletal system, some organs, and connective tissure
ectoderm- becomes skin and nervous system
includes the brain and spinal cord
Weaker gel concentration could make the lines on the graphs closer together
False. They form a V formation so that it will lower their heart rate and make it easier to go longer distances. And when they are in a V formation, it results in wind resistance.