Answer the following question given this paragraph: Consider the example of water forming from hydrogen and oxygen. Both hydrogen and oxygen gases exist as diatomic ("two-atom") molecules. These molecules are the reactants in the reaction. The Figure below shows that bonds must break to separate the atoms in the hydrogen and oxygen molecules. Then new bonds must form between hydrogen and oxygen atoms to form water molecules. The water molecules are the products of the reaction. Q: What is the name for a molecule with two atoms? Choices: - hydrostatic - ionized - covalent - diatomic A:
diatomic
(Question)
Answer the following question given this paragraph: Chadwick's work resulted in a new understanding of the nucleus of the atom; it is comprised of both protons and neutrons. Because the masses of subatomic particles are so small, a new unit, called an atomic mass unit (amu), was defined. Protons and neutrons each have a mass of approximately one amu. The Table below describes the characteristics of the three subatomic particles we have discussed. Q: Because the masses of subatomic particles are so small, a new unit, called what, was defined? Choices: - atomic volume unit - particle mass unit - nuclear mass unit - atomic mass unit A:
(Answer)
atomic mass unit
Ques: Answer the following question given this paragraph: Bathymetric maps are made from depth soundings or sonar data. They help oceanographers understand the shape of bottoms of lakes, bays, and the ocean. This information also helps boaters navigate safely. Q: Besides depth soundings, what else are bathymetric maps made of? Choices: - intensity data - solar data - density measures - sonar data A:
Ans: sonar data
(Q).
Answer the following question given this paragraph: Tight junctions are common at epithelia, which are sheets of cells that form a boundary between a mass of cells and a cavity or space (a lumen ). The membranes of these cells join together, forming a virtually impermeable barrier to fluid. Tight junctions essentially seal adjacent epithelial cells in a narrow layer just beneath their apical surface, which is the portion of the cell exposed to the lumen. The rest of the cell surface is known as the basolateral surface. Tight junctions prevent integral membrane proteins from moving between the apical and basolateral surface, maintaining the properties of those distinct surfaces. For example, receptor-mediated endocytosis occurs at the apical surface and exocytosis at the basolateral surface. Q: What is the term for sheets of cells that form a boundary between a mass of cells and a cavity or space? Choices: - mucus - myelin - ganglion - epithelia A:
(A).
epithelia
Ques:Answer the following question given this paragraph: Skeletal muscle is attached to the bones of the skeleton. It is striated like cardiac muscle because its muscle fibers are arranged in bundles. Contractions of skeletal muscle are voluntary. This means that they are under conscious control. Whether you are doing pushups or pushing a pencil, you are using skeletal muscles. Skeletal muscles are the most common type of muscles in the body. You can read more about them below. Q: Which type of muscle is most common in the human body? Choices: - digestive - smooth - hormonal - skeletal A:

Ans:skeletal
Answer the following question given this paragraph: Nervous tissue is made up of nerve cells that sense stimuli and transmit signals. Nervous tissue is found in nerves, the spinal cord, and the brain. Q: What is made up of nerve cells that sense stimuli and transmit signals? Choices: - muscle tissues - blood tissue - dependent tissue - nervous tissue A:
nervous tissue