Answer the following question given this paragraph: Cycloalkanes are hydrocarbons whose molecules are closed rings rather than straight or branched chains. A cyclic hydrocarbon is a hydrocarbon with a ring of carbon atoms. Q: Cycloalkanes are hydrocarbons whose molecules are closed rings rather than straight or branched chains. a cyclic hydrocarbon is a hydrocarbon with a ring of these? Choices: - oxygen atoms - hydrogen atoms - barium atoms - carbon atoms A:
carbon atoms
(Question)
Answer the following question given this paragraph: Autotrophs make their own food. Heterotrophs get food by eating other living things. Q: How do autotrophs get food? Choices: - From Water - Soak up from host cell - From Plant matter - make their own A:
(Answer)
make their own
Ques: Answer the following question given this paragraph: Ocean currents transfer heat from the Equator toward the poles. This moderates Earth's temperature. Q: Ocean currents transfer heat from the equator towards what locations? Choices: - continents - tropical zones - east and west - poles A:
Ans: poles
(Q).
Answer the following question given this paragraph: Suppose that you wanted to know how many hydrogen atoms were in a mole of water molecules. First, you would need to know the chemical formula for water, which is H 2 O. There are two atoms of hydrogen in each molecule of water. How many atoms of hydrogen would there be in two water molecules? There would be 2 2 = 4 hydrogen atoms. How about in a dozen? In that case a dozen is 12 so 12 2 = 24 hydrogen atoms in a dozen water molecules. To get the answers, (4 and 24) you had to multiply the given number of molecules by two atoms of hydrogen per molecule. So to find the number of hydrogen atoms in a mole of water molecules, the problem could be solved using conversion factors. Q: H2o is the chemical formula for what? Choices: - glass - smog - salt - water A:
(A).
water
Ques:Answer the following question given this paragraph: Watch this animation (http://openstaxcollege. org/l/sintestine) that depicts the structure of the small intestine, and, in particular, the villi. Epithelial cells continue the digestion and absorption of nutrients and transport these nutrients to the lymphatic and circulatory systems. In the small intestine, the products of food digestion are absorbed by different structures in the villi. Which structure absorbs and transports fats?. Q: Which cells continue the digestion and absorption of nutrients and transport these nutrients to the lymphatic and circulatory systems? Choices: - myocyte - blood cells - neurons - epithelial cells A:

Ans:epithelial cells
Answer the following question given this paragraph: Our solar system began about 5 billion years ago. The Sun, planets, and other solar system objects all formed at about the same time. The leading hypothesis for how they formed is called the nebular hypothesis . Q: Approximately how many billion years ago did our solar system begin? Choices: - four billion - three billion - nine billion - five billion A:
five billion