Problem: OPTIONS:
- molecules
- nuclei
- cell membranes
- tissues
Q: Answer the following question given this paragraph: 15.2 Sponges and Cnidarians Animals included in phylum Porifera are parazoans and do not possess true tissues. These organisms show a simple organization. Sponges have multiple cell types that are geared toward executing various metabolic functions. Cnidarians have outer and inner tissue layers sandwiching a noncellular mesoglea. Cnidarians possess a well-formed digestive system and carry out extracellular digestion. The cnidocyte is a specialized cell for delivering toxins to prey and predators. Cnidarians have separate sexes. They have a life cycle that involves morphologically distinct formsmedusoid and polypoidat various stages in their life cycle. Q: Porifera are parazoans that exhibit simple organization and lack true what? A:
Answer: tissues

Problem:OPTIONS:
- red
- green
- blue
- violet

Answer the following question given this paragraph: The wavelength of visible light determines the color that the light appears. Light with the longest wavelength appears red, and light with the shortest wavelength appears violet. In between are the wavelengths of all the other colors of light. Q: Light with the shortest wavelength appears as what color? A:
****
A: violet

Answer the following question given this paragraph: As plant cells grow, they also become specialized into different cell types. Once cells become specialized, they can no longer divide. So how do plants grow after that? The key to continued growth is meristem. Meristem is a type of plant tissue consisting of undifferentiated cells that can continue to divide. Q: Once a plant cell becomes specialized, what can they no longer do? A:
OPTIONS:
- photosynthesis
- cellular respiration
- osmosis
- divide
divide

Answer the following question given this paragraph: A compound has different properties than the substances it contains. For example, hydrogen and oxygen are gases at room temperature. But when they combine chemically, they form liquid water. Another example is table salt, or sodium chloride. It contains sodium and chlorine. Sodium is a silvery solid that reacts explosively with water, and chlorine is a poisonous gas (see Figure below ). But together, sodium and chlorine form a harmless, unreactive compound that you can safely sprinkle on food. Q: In what form of matter is hydrogen at room temperature? A:
OPTIONS:
- dissolved
- liquid
- solid
- gas

Answer: gas

Question: Answer the following question given this paragraph: Catalysts may be classified as either homogeneous or heterogeneous. A homogeneous catalyst is uniformly dispersed throughout the reactant mixture to form a solution. Sulfuric acid, for example, is a homogeneous catalyst used in the synthesis of esters such as procaine (Example 13). An ester has a structure similar to that of a carboxylic acid, in which the hydrogen atom attached to oxygen has been replaced by an R group. They are responsible for the fragrances of many fruits, flowers, and perfumes. Other examples of homogeneous catalysts are the enzymes that allow our bodies to function. In contrast, a heterogeneous catalyst is in a different physical state than the reactants. For economic reasons, most industrial processes use heterogeneous catalysts in the form of solids that are added to solutions of the reactants. Because such catalysts often contain expensive precious metals such as platinum or palladium, it makes sense to formulate them as solids that can be easily separated from the liquid or gaseous reactantproduct mixture and recovered. Examples of heterogeneous catalysts are the iron oxides used in the industrial synthesis of ammonia and the catalytic converters found in virtually all modern automobiles, which contain precious metals like palladium and rhodium. Catalysis will be discussed in more detail in Chapter 14 "Chemical Kinetics" when we discuss reaction rates, but you will encounter the term frequently throughout the text. Q: What two ways may catalyst be classified? A:
OPTIONS:
- oxygenated or heterogenous
- reactive or nonreactive
- fast or slow
- homogeneous or heterogeneous
Answer: homogeneous or heterogeneous

input: OPTIONS:
- evolution
- geography
- geology
- science Now, answer this question: Answer the following question given this paragraph: Science is a way of learning about the natural world that is based on evidence and logic. Q: What subject is a way of learning about the natural world that is based on evidence and logic? A:
A:
output:
science