Video shows what sporophyte means. A plant (or the diploid phase in its life cycle) which produces spores by meiosis in order to produce gametophytes.. Sporo...
Concentric contraction involves a shortening of the muscles under loading and is used to accelerate the body or move an object, as when you suddenly move in the opposite direction to hit the baseball.
Other Types of Muscle Contraction. A concentric muscle contraction is one of the three types of muscle contractions, which are also known as muscle fiber activations. The method by which muscles increase in strength and size is a complex physiologic process that requires both muscle activation and rest.