Answer the following question given this paragraph: Q: What is the process by which plants make their own food? Choices: - ATP cycle - respiration - mitochondrial process - photosynthesis A:
photosynthesis
(Question)
Answer the following question given this paragraph: Ice wedging and abrasion are two important processes of mechanical weathering. Q: Abrasion is a process of what type of weathering? Choices: - geological - molecular - environmental - mechanical A:
(Answer)
mechanical
Ques: Answer the following question given this paragraph: B cells respond to pathogens and other cells from outside the body in the blood and lymph. Most B cells fight infections by making antibodies. An antibody is a large, Y-shaped protein that binds to an antigen , a protein that is recognized as foreign. Antigens are found on the outside of bacteria, viruses and other foreign microorganisms. Each antibody can bind with just one specific type of antigen ( Figure below ). They fit together like a lock and key. Once an antigen and antibody bind together, they signal for a phagocyte to destroy them. Phagocytes are white blood cells that engulf targeted antigens by phagocytosis. As the antigen is on the outside of a pathogen, the pathogen is destroyed by this process. Q: Each antibody can bind with just one specific type of what, resulting in a signal for a phagocyte to destroy them? Choices: - pathogen - adhesion - immunogen - antigen A:
Ans: antigen
(Q).
Answer the following question given this paragraph: Depending on the surrounding conditions, normal matter usually exists as one of three phases: solid, liquid, or gas. A phase change is a physical process in which a substance goes from one phase to another. Usually the change occurs when adding or removing heat at a particular temperature, known as the melting point or the boiling point of the substance. The melting point is the temperature at which the substance goes from a solid to a liquid (or from a liquid to a solid). The boiling point is the temperature at which a substance goes from a liquid to a gas (or from a gas to a liquid). The nature of the phase change depends on the direction of the heat transfer. Heat going into a substance changes it from a solid to a liquid or a liquid to a gas. Removing heat from a substance changes a gas to a liquid or a liquid to a solid. Two key points are worth emphasizing. First, at a substance's melting point or boiling point, two phases can exist simultaneously. Take water (H2O) as an example. On the Saylor URL: http://www. saylor. org/books. Q: Depending on the surrounding conditions, normal matter usually exists as one of three phases: solid, liquid, or this? Choices: - fluid - crystal - ice - gas A:
(A).
gas
Ques:Answer the following question given this paragraph: Millions of fossils have been found since Darwin's time. They show that evolution may occur in fits and starts. Long period of little or gradual change may be interrupted by bursts of rapid change. The rate of evolution is influenced by how the environment is changing. Today, Earth's climate is changing rapidly. How do you think this might affect the rate of evolution?. Q: Fossil records show that what process may occur in "fits and starts"? Choices: - generation - isolation - variation - evolution A:

Ans:evolution
Ques:Answer the following question given this paragraph: Average velocity is displacement divided by time. Q: Displacement divided by time is equal to the average what? Choices: - force - speed - acceleration - velocity A:

Ans:
velocity