The answer is B
Synthetic, oil
Harriet Beecher Stowe's novel Uncle Tom's Cabin was a book that worked to expose northerners to the evils of slavery. Harriet Beecher Stowe sought to write a book that would expose the horrors of slavery and to expose the injustices that were taking place in the American South that Northerners might not have been fully informed about at the time. The book was certainly not hailed as a marvelous work in the South and was instead decried and bashed because it sought to expose the practices employed in the South's use of slave labor.
One is climate change I think
Answer:
by the sarcoplasmic reticulum's calcium ion pumps
Explanation:
Rigor mortis or postmortem rigidity, is a state caused by chemical changes in the muscles that occur post mortem and cause the limbs of the corpse to stiffen.
This occurs because after death, there is no cellular respiration and consequently, no oxygen nor ATP (ATP is required for the muscle relaxation).
Calcium enters the cytosol after death because it is released due to the deterioration of the sarcoplasmic reticulum and due to the breakdown of the sarcolemma. Ca2+ ions activate the formation of actin-myosin cross-bridging necessary for the contraction. Muscles are unable to relax, because myosin heads continue to bind with the active sites of actin and there is no ATP to destabilize the myosin-actin bond.
