Answer the following question given this paragraph: Reactivity is the ability of matter to combine chemically with other substances. Some kinds of matter are extremely reactive; others are extremely unreactive. For example, potassium is very reactive, even with water. When a pea-sized piece of potassium is added to a small amount of water, it reacts explosively. You can observe this reaction in the video at the URL below. ( Caution: Don't try this at home!) In contrast, noble gases such as helium almost never react with any other substances. Q: The ability of matter to combine chemically with other substances is known as? A:

OPTIONS:
- turbidity
- solubility
- permeability
- reactivity

Answer: reactivity

Problem: OPTIONS:
- estrogen
- cortisol
- adrenaline
- insulin
Q: Answer the following question given this paragraph: Endocrine system: A high concentration of sugar in the blood triggers secretion of insulin by an endocrine gland called the pancreas. Insulin is a hormone that helps cells absorb sugar from the blood. Q: Which hormone helps cells absorb sugar from the blood? A:
Answer: insulin

Problem:OPTIONS:
- heart rate
- cells
- calcium
- metabolism

Answer the following question given this paragraph: 20.8 End-of-Chapter Material Chapter Summary To ensure that you understand the material in this chapter, you should review the meanings of the bold terms in the following summary and ask yourself how they relate to the topics in the chapter. Metabolism is the general term for all chemical reactions in living organisms. The two types of metabolism are catabolismthose reactions in which complex molecules (carbohydrates, lipids, and proteins) are broken down to simpler ones with the concomitant release of energyand anabolismthose reactions that consume energy to build complex molecules. Metabolism is studied by looking at individual metabolic pathways, which are a series of biochemical reactions in which a given reactant is converted to a desired end product. The oxidation of fuel molecules (primarily carbohydrates and lipids), a process called respiration, is the source of energy used by cells. Catabolic reactions release energy from food molecules and use some of that energy for the synthesis of adenosine triphosphate (ATP); anabolic reactions use the energy in ATP to create new compounds. Catabolism can be divided into three stages. In stage I, carbohydrates, lipids, and proteins are broken down into their individual monomer unitssimple sugars, fatty acids, and amino acids, respectively. In stage II, these monomer units are broken down by specific metabolic pathways to form a common end product acetyl-coenzyme A (CoA). In stage III, acetyl-CoA is completely oxidized to form carbon dioxide and water, and ATP is produced. Saylor URL: http://www. saylor. org/books. Q: Catabolism and anabolism are the two types of what? A:
****
A: metabolism

Answer the following question given this paragraph: Flickr:EvelynGiggles. Antifreeze lowers the freezing temperature of the water in car radiators . CC BY 2.0. Q: What does antifreeze do to the freezing temperature of the water in car radiators? A:
OPTIONS:
- raises it
- keeps it constant
- foresees it
- lowers it
lowers it

Answer the following question given this paragraph: The speed of a wave is a product of its wavelength and frequency. Because the speed of electromagnetic waves through space is constant, the wavelength or frequency of an electromagnetic wave can be calculated if the other value is known. Q: The speed of a wave is a product of its wavelength and what else? A:
OPTIONS:
- voltage
- density
- magnitude
- frequency

Answer: frequency

input with options: Answer the following question given this paragraph: Dura Mater Like a thick cap covering the brain, the dura mater is a tough outer covering. The name comes from the Latin for "tough mother" to represent its physically protective role. It encloses the entire CNS and the major blood vessels that enter the cranium and vertebral cavity. It is directly attached to the inner surface of the bones of the cranium and to the very end of the vertebral cavity. There are infoldings of the dura that fit into large crevasses of the brain. Two infoldings go through the midline separations of the cerebrum and cerebellum; one forms a shelf-like tent between the occipital lobes of the cerebrum and the cerebellum, and the other surrounds the pituitary gland. The dura also surrounds and supports the venous sinuses. Q: Like a thick cap covering the brain, the dura mater is a tough outer covering. the name comes from the latin for? A:
OPTIONS:
- back mother
- protecting mother
- difficult mother
- tough mother
output:
tough mother