Since each myofibril is attached at either end of the muscle fiber, when sarcomeres shorten, the muscle fiber A) lengthens. B) shortens. C) strengthens. D) weakens. E) pulls from the middle.

Related Questions

• A cat is blinded in one eye in a fight. When the cat later sexually reproduces with another cat, how will the blindness affect the offspring
• Ascidians are sac-like marine organisms. Their larvae have well-developed brains and dorsal nerve cords. This suggests that ascidians should be classified with the 
• What organisms can do lactic acid fermentation?
• Which of the following statements about the smooth endoplasmic reticulum (SER) is correct? a. Liver cells contain abundant SER. b. Testes and ovary cells possess high levels of SER. c. The SER is not the primary site for synthesizing most membrane-bound proteins.d. Cholesterol synthesis occurs in the SER. e. The luminal face of the SER is a crucial site for membrane lipid synthesis. f. Phospholipids are synthesized from water-soluble precursors in the cytosol. g. Flippases, rather than flipases, are enzymes that facilitate lipid movement across a membrane leaflet.
• In receptor-mediated endocytosis, receptor molecules initially project to the outside of the cell. Where do they end up after endocytosis?
• Having freckles is dominant (F), and not having freckles is recessive (f). A mother has Ff and a father has ff. If they have a child, which genotype will make their child not have freckles? A.fF B.Ff C.FF D.ff
• When fossil fuels are burned the release energy stored years ago true or false?
• if a hypothesis is not supported, what do you need to do next
• Eukaryotic chromosomes are composed of which macromolecules
• A nurse is developing a plan to teach a mother how to reduce her infant's risk of developing otitis media. which direction should the nurse include in the teaching plan?