Answer the following question given this paragraph: Fats are solid lipids that animals use to store energy. Q: What are solid lipids that animals use to store energy called? Choices: - steroids - cholesterol - hydrocortisol - fats A:
fats
Answer the following question given this paragraph: Life is complex, and there are millions of species alive today. Many millions more lived in the past and then went extinct. Organisms include microscopic, single-celled organisms. They also include complex, multicellular animals such as you. Clearly, life science is a huge science. That's why a life scientist usually specializes in just one field within life science. Dr. Smith, for example, specializes in ecology. You can see the focus of ecology and several other life science fields in Table below . Click on the links provided if you want to learn about careers in these fields. Q: What do you call a species that has died out in the past? Choices: - endangered - inhabit - remnant - extinct A:
extinct
Q: Answer the following question given this paragraph: Group selection A proposed alternative to inclusive fitness (sometimes known as kin selection) is the concept of group selection. In this type of evolutionary scenario, small groups of organisms of the same species are effectively acting as single (perhaps colonial) organisms. It is the reproductive success of the group (rather than individuals within the group), compared to other groups of the organism that is the basis of selection. Groups that display cooperative and altruistic traits have a selective advantage over groups that do not. Again, the mathematical analysis is similar (and it has been claimed that mathematically group and kin selection are equivalent).169 The costs of a trait must be offset by the benefits, but now the key factor is membership in a particular group (and typically, members of a group tend to be related to one another). The life cycle of the bacterium Myxococcus xanthus provides an example of this type of behavior. When environmental conditions are harsh, the cells aggregate into dense, 100 m diameter, "fruiting bodies", each containing ~100,000 stress resistant spores. When the environment improves, and prey becomes available, the spores are released en mass and return to active life. They move and feed in a cooperative manner through the release of digestive enzymes, which because they are acting in a quorum mode, can reach high levels.170 A well-coordinated group is expected to have a significant reproductive advantage over more anarchic collection of individuals. Q: An alternative to inclusive fitness is group selection, a type of what scenario where small groups of organisms of the same species are effectively acting as single (perhaps colonial) organisms? Choices: - introductory - combination - molecular - evolutionary A:
A: evolutionary
Question: Answer the following question given this paragraph: Glucose is an example of a biochemical compound. The prefix bio- comes from the Greek word that means "life. " A biochemical compound is any carbon-based compound that is found in living things. Biochemical compounds make up the cells and tissues of living things. They are also involved in all life processes, including making and using food for energy. Given their diversity of functions, it's not surprising that there are millions of different biochemical compounds. Q: What is a carbon-based compound that is found in living things called? Choices: - organic compound - biological compound - genetic compound - biochemical compound A:
Answer: biochemical compound
*Question*
Answer the following question given this paragraph: Enzymes are involved in most biochemical reactions, and they do their job extremely well. A typical biochemical reaction could take several days to occur without an enzyme. With the proper enzyme, the same reaction can occur in just a split second! Without enzymes to speed up biochemical reactions, most organisms could not survive. The activities of enzymes depend on the temperature, ionic conditions, and the pH of the surroundings. Some enzymes work best at acidic pHs, while others work best in neutral environments. Q: Most organisms could not survive without what being present to speed up biochemical reactions? Choices: - vitamins - lipids - hormones - enzymes A:
**Answer**
enzymes
Q: Answer the following question given this paragraph: Biofuels are useful because they are liquid. Biofuels can go into a gas tank unlike many other types of alternative energy. Q: What form do biofuels take that makes them very useful? Choices: - crystals - solid - chemical - liquid A:
A: liquid