The sarcoplasmic reticulum stores a)acetylcholine, which triggers muscle contraction b)calcium, which triggers muscle contractionsc)tropomyosin, which prevents myosin from detaching from actin

Most of the world's booming population growth is occurring in countries that arenot highly industrialized. the high birthrates in these countries often result inlower standards of living. which of the following would be the best solution tothis global economic problem? o a. encouraging developing countries to participate in global tradeob. creating an international seed bank to protect biodiversityoc. forming strict regulations on greenhouse gas emissionso d. establishing international agreements to prevent overfishingis it a b c d

Are chemicals that are essential to all cellular activity, the body convertcarbohydrates and fats into energy.

Which of the following activities can someone who is grieving? walking in the woods reading a book watching a movie cooking a meal