Answer the following question given this paragraph: Geothermal energy uses heat from magma within the Earth to heat homes or produce steam that turns turbines. Q: What kind of energy used heat from magma within the earth to heat homes or produce steam that turns turbines? Choices: - thermal energy - robust energy - renewable energy - geothermal energy A:
geothermal energy
(Question)
Answer the following question given this paragraph: Sliding friction is friction that acts on objects when they are sliding over a surface. Sliding friction is weaker than static friction. That's why it's easier to slide a piece of furniture over the floor after you start it moving than it is to get it moving in the first place. Sliding friction can be useful. For example, you use sliding friction when you write with a pencil. The pencil "lead" slides easily over the paper, but there's just enough friction between the pencil and paper to leave a mark. Q: What type of friction is friction that acts on objects when they are sliding over a surface? Choices: - spreading friction - static friction - rolling friction - sliding friction A:
(Answer)
sliding friction
Ques: Answer the following question given this paragraph: Q: E. coli uses how many enzymes to take up and metabolize lactose? Choices: - 4 - 11 - 2 - 3 A:
Ans: 3
(Q).
Answer the following question given this paragraph: Nuclear fission is the splitting of the nucleus of an atom into two smaller nuclei. This type of reaction releases a great deal of energy from a very small amount of matter. For example, nuclear fission of a tiny pellet of uranium-235, like the one pictured in Figure below , can release as much energy as burning 1,000 kilograms of coal!. Q: What do you call the splitting of the nucleus of an atom into two smaller nuclei? Choices: - critical fission - nuclear fusion - cell division - nuclear fission A:
(A).
nuclear fission
Ques:Answer the following question given this paragraph: Watch this animation (http://openstaxcollege. org/l/p53_cancer) to learn more about the use of p53 in fighting cancer. Proto-oncogenes are positive cell-cycle regulators. When mutated, proto-oncogenes can become oncogenes and cause cancer. Overexpression of the oncogene can lead to uncontrolled cell growth. This is because oncogenes can alter transcriptional activity, stability, or protein translation of another gene that directly or indirectly controls cell growth. An example of an oncogene involved in cancer is a protein called myc. Myc is a transcription factor that is aberrantly activated in Burkett's Lymphoma, a cancer of the lymph system. Overexpression of myc transforms normal B cells into cancerous cells that continue to grow uncontrollably. High B-cell numbers can result in tumors that can interfere with normal bodily function. Patients with Burkett's lymphoma can develop tumors on their jaw or in their mouth that interfere with the ability to eat. Q: Proto-oncogenes are positive cell-cycle regulators but when mutated, they can become what? Choices: - microbes and cause cancer - bacteria and cause cancer - cultigens and cause cancer - oncogenes and cause cancer A:

Ans:oncogenes and cause cancer
Question: Answer the following question given this paragraph: The landscape of the Moon - its surface features - is very different from Earth. The lunar landscape is covered by craters caused by asteroid impacts ( Figure below ). The craters are bowl-shaped basins on the Moon's surface. Because the Moon has no water, wind, or weather, the craters remain unchanged. Q: The lunar landscape is covered by craters caused by what? Choices: - earth impacts - volcanoes - water - asteroid impacts A:
Answer:
asteroid impacts