Which statement best describes the step in muscle contraction when the sarcomere is the shortest? The sarcomere is contracted, and the actin and myosin filaments are partially overlapped.
The sarcomere is relaxed, and the actin and myosin filaments are partially overlapped.
The sarcomere is contracted, and the actin and myosin filaments are completely overlapped.
The sarcomere is relaxed, and the actin and myosin filaments are completely overlapped.

What is the mrna strand that would be copied from this dna strand

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water