Striations are produced by the uniform arrangement of: a. muscle fibers b. sarcomeres c. fascicles d. all of the above

The correct answer is option B, that is, sarcomeres.  

Striated muscle tissue refers to a muscle tissue, which demonstrates repeating units known as sarcomeres, in comparison to the smooth muscle tissue that does not exhibit sarcomeres.  

The existence of sarcomeres manifests as an array of bands noticeable along the fibers of muscles and is accountable for the striated look witnessed in the microscopic images of the tissue. The striations in muscles are one of the essential characteristics of skeletal muscles.  

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.