Answer the following question given this paragraph: Q: Where does oxygen enter the blood? Choices: - in the heart - in the veins - in the liver - in the lungs A:
in the lungs
(Question)
Answer the following question given this paragraph: Saturated hydrocarbons contain only single bonds between carbon atoms. They are also called alkanes. They may form straight-chain, branched-chain, or cyclic molecules. Compounds with the same number of atoms but different shapes are called isomers. Q: What is another word for saturated hydrocarbons? Choices: - catalysts - enzymes - aldehydes - alkanes A:
(Answer)
alkanes
Ques: Answer the following question given this paragraph: Convection in the mantle drives the movement of the plates of lithosphere over the Earth's surface. New oceanic crust forms at the ridge and pushes the older seafloor away from the ridge horizontally. Q: Convection in which part of the earth drives the movement of the plates of lithosphere over the earth's surface? Choices: - atmosphere - ocean - upper crust - mantle A:
Ans: mantle
(Q).
Answer the following question given this paragraph: This equation is based on the conservation of energy and conservation of charge. Electrical potential energy can be described by the equation PE = qV , where q is the electric charge and V is the voltage. Thus the energy supplied by the source is qV , while that dissipated by the resistors is. Q: Electrical potential energy can be described by the equation pe = qv, where q is the electric charge and v is what? Choices: - amplitude - wavelength density - frequency - voltage A:
(A).
voltage
Ques:Answer the following question given this paragraph: Knowledge gained by this basic research on yeast cells has been applied to practical problems. Scientists have developed drugs to treat cancer based on knowledge of the cell cycle. Cancer is a disease in which cells divide out of control. The new drugs interfere with the cell cycle of cancer cells, so the cells stop dividing. This is an example of applied science. The aim of applied science is to find solutions to practical problems. Applied science generally rests on knowledge gained by basic science. Q: What is the name for the disease in which cells divide out of control? Choices: - diabetes - mutation - angina - cancer A:

Ans:cancer
Ques:Answer the following question given this paragraph: The various emissions will differ considerably in their ability to go through matter, known as their penetrating ability . The -particle has the least penetrating power since it is the largest and slowest emission. It can be blocked by a sheet of paper or a human hand. Beta particles are more penetrating than alpha particles, but can be stopped by a thin sheet of aluminum. Of the three basic types of emissions, gamma particle are the most penetrating. A thick lead shield is required to stop gamma emissions. Positrons represent a special case in that they annihilate when they come in contact with electrons. The collision of a positron and an electron results in the formation of two gamma emissions that go 180 degrees away from each other. Q: Of the three basic types of radioactive emissions, what particle is the most penetrating? Choices: - neutron - alpha - beta - gamma A:

Ans:
gamma