input: OPTIONS:
- amino acids
- metabolic acids
- nucleic acids
- fatty acids Now, answer this question: Answer the following question given this paragraph: Lipids consist only or mainly of carbon, hydrogen, and oxygen. Both fats and oils are made up of long chains of carbon atoms that are bonded together. These chains are called fatty acids. Fatty acids may be saturated or unsaturated. In the Figure below you can see structural formulas for two small fatty acids, one saturated and one unsaturated. Q: Both fats and oils are made up of long chains of carbon atoms that are bonded together. what are these chains called? A:
A:
output: fatty acids

Answer the following question given this paragraph: Telescopes that use lenses to bend light are called refracting telescopes , or refractors ( Figure below ). The earliest telescopes were all refractors. Many amateur astronomers still use refractors today. Refractors are good for viewing details within our solar system. Craters on the surface of Earth's Moon or the rings around Saturn are two such details. Q: What are telescopes that use lenses to bend light called? A:

OPTIONS:
- reflecting telescopes
- sliding telescopes
- layering telescopes
- refracting telescopes

Answer: refracting telescopes

Problem: OPTIONS:
- size
- cost
- length
- charge
Q: Answer the following question given this paragraph: Monatomic ions have an oxidation number equal to their charge. Li + has an oxidation state of +1, Ba 2+ has an oxidation state of +2, I - has an oxidation state of -1, and so on. Q: Monatomic ions have an oxidation number equal to their what? A:
Answer: charge

Problem:OPTIONS:
- microbes
- parasites
- radiation
- mutations

Answer the following question given this paragraph: Mutations are the key to species evolving. Lets say an organism "mutates" due to a new allele for a gene that determines coat color. There are, theoretically, only three outcomes of that mutation:. Q: What are the key to species evolving? A:
****
A: mutations

Answer the following question given this paragraph: CHAPTER REVIEW 20.1 Structure and Function of Blood Vessels Blood pumped by the heart flows through a series of vessels known as arteries, arterioles, capillaries, venules, and veins before returning to the heart. Arteries transport blood away from the heart and branch into smaller vessels, forming arterioles. Arterioles distribute blood to capillary beds, the sites of exchange with the body tissues. Capillaries lead back to small vessels known as venules that flow into the larger veins and eventually back to the heart. The arterial system is a relatively high-pressure system, so arteries have thick walls that appear round in cross section. The venous system is a lower-pressure system, containing veins that have larger lumens and thinner walls. They often appear flattened. Arteries, arterioles, venules, and veins are composed of three tunics known as the tunica intima, tunica media, and tunica externa. Capillaries have only a tunica intima layer. The tunica intima is a thin layer composed of a simple squamous epithelium known as endothelium and a small amount of connective tissue. The tunica media is a thicker area composed of variable amounts of smooth muscle and connective tissue. It is the thickest layer in all but the largest arteries. The tunica externa is primarily a layer of connective tissue, although in veins, it also contains some smooth muscle. Blood flow through vessels can be dramatically influenced by vasoconstriction and vasodilation in their walls. Q: Blood vessels blood pumped by the heart flows through a series of vessels known as arteries, arterioles, capillaries, venules, and veins before returning to this? A:
OPTIONS:
- lungs
- feet
- brain
- heart
heart

Answer the following question given this paragraph: We can see rainbows because they are formed by visible light. Visible light includes all the wavelengths of light that the human eye can detect. It allows us to see objects in the world around us. Without visible light, we would only be able to sense most objects by sound or touch, and we would never see rainbows. Like humans, most other organisms also depend on visible light, either directly or indirectly. Many animals use it to see. All plants use it to make food in the process of photosynthesis. Without the food made by plants, most other organisms could not survive. Q: What helps us see rainbows in the sky? A:
OPTIONS:
- spectral light
- myopia
- prism
- visible light

Answer:
visible light