Compare and contrast dystrophin in dmd , bud and healthy muscle

Which description shows competition in an environment? an organism that feeds on some food an organism that finds a place to sleep three organisms of the same species living in an area three organisms battling over limited resources

These are the components of the reservoirs of carbon that are exchanged in our environment.

In the image layer a is the topmost layer layer c contains fossils from the precambrian era larrabee contains dinosaur fossils and layer a contains fossils of mammals which two statements are supported by this evidence