Which describes step three of a muscle contraction? The sarcomere lengthens.
The space between sarcomeres increases.
Actin and myosin are partially overlapped.
Actin and myosin are completely overlapped.

The  central dogma  of molecular biology is centered upon the process of protein synthesis, in which the information from dna is transcribed and translated, resulting in multiple amino acids being joined to form a)lipidsb)proteinsc)carbohydratesd)nucleic acids

Compare and contrast the adaptations of free-living flatworms and parasitic flatworms

Isotopes of the same element have differ in their