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.
Eccentric and Concentric are two words that are often confused in terms of their meanings and connotations. The two words are related to the contractions of the muscle. They are both types of isotonic contraction. When the muscle shortens to move a load then the muscle undergoes concentric contraction. A bicep curl is one of the best examples of a concentric contraction. While holding a weight too, a man has to bend his elbow thereby, resulting in what is called concentric contraction.