Describe how glycoproteins and glycolipids on the surface of a red blood cell determine blood type

Is it considered muscle s ennervation if sympathetic fibers innervate the vessels within the muscle?

4. multiple crosses were made between true-breeding lines of black and yellow labrador retrievers. all the f1 progeny were black. when these progeny were intercrossed, they produced an f2 consisting of 91 black, 39 yellow and 30 chocolate. a. propose an explanation for the inheritance of coat color in labradors. b. propose a biochemical pathway for coat color determination and indicate how the relevant genes control coat coloration.

Which of your fossils are most likely heterotrophs? which of them are autotrophs? how do you know?