Answer the following question given this paragraph: Osteoporosis is a disease in which bones lose mass and become more fragile than they should be. Osteoporosis also makes bones more likely to break. Two of the easiest ways to prevent osteoporosis are eating a healthy diet that has the right amount of calcium and vitamin D and to do some sort of weight-bearing exercise every day. Foods that are a good source of calcium include milk, yogurt, and cheese. Non-dairy sources of calcium include Chinese cabbage, kale, and broccoli. Many fruit juices, fruit drinks, tofu, and cereals have calcium added to them. It is recommended that teenagers get 1300 mg of calcium every day. For example, one cup (8 fl. oz. ) of milk provides about 300 mg of calcium, or about 30% of the daily requirement. Q: What is the disease in which bones lose mass and become more fragile and likely to break? Choices: - arthritis - tuberculosis - fibrosis - osteoporosis A:
osteoporosis
Answer the following question given this paragraph: A: During a chemical reaction, chemical changes take place. Some chemical bonds break and new chemical bonds form. Q: During a what type of reaction do chemical changes take place? Choices: - toxic - biological - nuclear - chemical A:
chemical
Q: Answer the following question given this paragraph: The mRNA is divided into three-base segments called codons. A codon is the segment of nucleotides that codes for an amino acid, or for a start or stop signal. There are 64 codons. Q: What is the total number of codons? Choices: - 45 - 51 - 68 - 64 A:
A: 64
Question: Answer the following question given this paragraph: Larger cycloalkanes also exist, but are less common. Cyclic hydrocarbons may also be unsaturated. A cycloalkene is a cyclic hydrocarbon with at least one carbon-carbon double bond. A cycloalkyne is a cyclic hydrocarbon with at least one carbon-carbon triple bond. Shown below are the simplified structural formulas for cyclohexene and cyclooctyne. Q: What's the term for a cyclic hydrocarbon with a carbon-carbon triple bond? Choices: - bialkyne - tricycloalkyne - bicycloalykne - cycloalkyne A:
Answer: cycloalkyne
*Question*
Answer the following question given this paragraph: A polyatomic ion is an ion composed of more than one atom. For example, the ammonium ion consists of one nitrogen atom and four hydrogen atoms. Together, they comprise a single ion with a 1+ charge and a formula of NH 4 + . The carbonate ion consists of one carbon atom and three oxygen atoms, and it carries an overall charge of 2. The formula of the carbonate ion is CO 3 2- . The atoms of a polyatomic ion are tightly bonded together, so the entire ion behaves as a single unit. Figure below shows several models, and Table below lists many of the most common polyatomic ions. Q: A polyatomic ion is an ion composed of more than one what? Choices: - pair bond - neutron - nucleus - atom A:
**Answer**
atom
Q: Answer the following question given this paragraph: This bottle of water models the semicircular canals in your ears. When you tip the bottle, the water moves up or down the sides of the bottle; when you tip your head, the liquid inside the semicircular canals moves up and down the sides of the canals. Tiny hair cells lining the canals sense the movement of liquid and send messages to the brain. Q: What senses the movement of liquid in ear canals? Choices: - Ear Drum - Brain Cells - muscle cells - hair cells A:
A: hair cells