Which of the following is TRUE? A. Skeletal muscle fibers contain sarcomeres; smooth muscle fibers do not. B. Skeletal muscle cells have one nucleus, but smooth muscle cells are multinucleated. C. Skeletal muscle lacks the coarse connective tissue sheaths that are found in smooth muscle. D. Skeletal muscle fibers tend to be shorter than smooth muscle fibers.

What effect does plate tectonics have an organic evolution

As molecules are formed from metabolism, entropy __ and the universe becomes less disordered. a. is decreased b. is increased c. moves closer to equilibrium d. is unchanged

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?