Q: Animals produce most of what chemicals, which are needed to synthesize the fatty acids they need? Read this paragraph and choose the correct option from the provided answers: Choices: - carbohydrates - solvents - hormones - enzymes A:
enzymes

Q: What bond is a force of attraction between ions and atoms? Read this paragraph and choose the correct option from the provided answers: A chemical bond is a force of attraction between atoms or ions. Bonds form when atoms share or transfer valence electrons. Choices: - carbon bond - Ionic bond - radiation bond - chemical bond A:
chemical bond

Q: Q: What does the stomach produce to help digest food? Read this paragraph and choose the correct option from the provided answers: Neural Responses to Food In reaction to the smell, sight, or thought of food, like that shown in Figure 34.20, the first response is that of salivation. The salivary glands secrete more saliva in response to stimulation by the autonomic nervous system triggered by food in preparation for digestion. Simultaneously, the stomach begins to produce hydrochloric acid to digest the food. Recall that the peristaltic movements of the esophagus and other organs of the digestive tract are under the control of the brain. The brain prepares these muscles for movement as well. When the stomach is full, the part of the brain that detects satiety signals fullness. There are three overlapping phases of gastric controlthe cephalic phase, the gastric phase, and the intestinal phaseeach requires many enzymes and is under neural control as well. Choices: - acetic acid - lactic acid - amino acid - hydrochloric acid A:
A: hydrochloric acid

Question: Q: What advantage equals the distance of effort divided by the distance the object moves and is also equal to the output force divided by the input force? Read this paragraph and choose the correct option from the provided answers: Mechanical advantage equals the distance of effort divided by the distance the object moves. It is also equal to the output force divided by the input force. Choices: - potential - atomic - constant - mechanical A:
Answer: mechanical

*Question*
Q: When did we learn there was a hole in the ozone layer? Read this paragraph and choose the correct option from the provided answers: Ozone near the ground harms human health. Ground-level ozone is a pollutant. But the ozone layer in the stratosphere protects us from harmful solar rays. That's why people were alarmed in the 1980s to learn that there was a hole in the ozone layer. Choices: - 1950s - 1970s - 1990's - 1980s A:
**Answer**
1980s

(Q).
Q: When magma cools slowly, what texture does it have? Read this paragraph and choose the correct option from the provided answers: Texture indicates how the magma cooled. Magma that cools rapidly has small or no visible crystals. Magma that cools slowly has large crystals; reference the Table above for the type of rock, the amount of silica it has, and examples. Choices: - large squares - large gases - small circles - large crystals A:
(A).
large crystals