Muscle tissue is made up of cells that contract and release to produce movement. Which process provides the energy that the cells need to contract?

a. respiration

b. meiosis

c. photosynthesis

d. mitosis

Biology and physics are so closely related that sometimes the fields overlap. Which of the following experiments might both biologists and physicists do? A. Study how the body's nerve cells react to an electrical shock B.

Once the system reaches equilibrium at 675°C additionally H2 is added in the temperature is held constant which statement best describes how this affects the value of K

Organisms have different ways of obtaining water. Bacteria obtain his water by allowing individual water molecules to enter through the

The solubility of a salt in a given volume of water depends primarily on the

The stopcock connecting a 1.88 L bulb containing xenon gas at a pressure of 8.40 atm, and a 9.20 L bulb containing oxygen gas at a pressure of 3.99 atm, is opened and the gases are allowed to mix.

How many moles of nitrogen gas are in a 10.0 L container at STP? a. 0.45 moles b. 22.4 moles c. 10.0 moles d. 6.02 x 1023 moles

In your own words, explain John Martin s theory about iron dumping.

List four common signs that a chemical reaction has occurred.

How does water evaporate from: (different things)

The molar mass of NH3 is 17.03 g/mol. The molar mass of H2 is 2.0158 g/mol. In a particular reaction, 0.575 g of NH3 forms. What is the mass, in grams, of H2 that must have reacted, to the correct number of significant figures?