Answer the following question given this paragraph: Flammability is the ability of matter to burn. When matter burns, it combines with oxygen and changes to different substances. Wood is an example of flammable matter, as seen in Figure below . Q: What term is used to describe the ability of matter to burn? Choices: - permeability - reactivity - volatility - flammability A:
flammability
Answer the following question given this paragraph: Sponges are characterized by a feeding system unique among animals. As sponges don't have mouths, they must feed by some other method. Sponges have tiny pores in their outer walls through which water is drawn. Cells in the sponge walls filter food from the water as the water is pumped through the body and out other larger openings. The flow of water through the sponge is unidirectional, driven by the beating of flagella, which line the surface of chambers connected by a series of canals. Q: The flow of water through the sponge is unidirectional, driven by the beating of what? Choices: - antennae - cilia - fin - flagella A:
flagella
Q: Answer the following question given this paragraph: Arteries carry blood away from the heart, while veins return blood to the heart. Q: What carries blood away from the heart? Choices: - veins - pores - capillaries - arteries A:
A: arteries
Question: Answer the following question given this paragraph: Enzymes are extremely efficient in speeding up reactions. They can catalyze up to several million reactions per second. As a result, the difference in rates of biochemical reactions with and without enzymes may be enormous. A typical biochemical reaction might take hours or even days to occur under normal cellular conditions without an enzyme, but less than a second with an enzyme. Q: Enzymes in cellular reactions work to do what to the reaction? Choices: - increase yield - decrease heat - slow it down - speed it up A:
Answer: speed it up
*Question*
Answer the following question given this paragraph: The alkaline Earth metals include all the elements in group 2 (see Figure below ). These metals have just two valence electrons, so they are very reactive, although not quite as reactive as the alkali metals. In nature, they are always found combined with other elements. Alkaline Earth metals are silvery grey in color. They are harder and denser than the alkali metals. All are solids at room temperature. Q: Alkaline earth metals are what color? Choices: - white - black - reddish orange - silvery grey A:
**Answer**
silvery grey
(Question)
Answer the following question given this paragraph: In grazing , the predator eats part of the prey but does not usually kill it. You may have seen cows grazing on grass. The grass they eat grows back, so there is no real effect on the population. In the ocean, kelp (a type of seaweed) can regrow after being eaten by fish. Q: In grazing, a predator partially eats but does not kill what? Choices: - time - pack - predators - prey A:
(Answer)
prey