Answer the following question given this paragraph: Q: What are the newest, outer layers of secondary xylem called? Choices: - bark - fibrous - vascular - sapwood A:
sapwood
(Question)
Answer the following question given this paragraph: Angiosperms have vascular tissue, seeds, and flowers. Q: Which plant group has vascular tissue, seeds, and flowers? Choices: - microbes - fungi - spores - angiosperms A:
(Answer)
angiosperms
Ques: Answer the following question given this paragraph: To balance a nuclear reaction. The two general kinds of nuclear reactions are nuclear decay reactions and nuclear transmutation reactions. In a nuclear decay reaction, also called radioactive decay, an unstable nucleus emits radiation and is transformed into the nucleus of one or more other elements. The resulting daughter nuclei have a lower mass and are lower in energy (more stable) than the parent nucleus that decayed. In contrast, in anuclear transmutation reaction, a nucleus reacts with a subatomic particle or another nucleus to form a product nucleus that is more massive than the. Q: When an unstable nucleus emits radiation and is transformed into the nucleus of other elements this is called? Choices: - naturally decay - explosive decay - fusion decay - radioactive decay A:
Ans: radioactive decay
(Q).
Answer the following question given this paragraph: Evolution is a change in the characteristics of living things over time. Evolution occurs by a process called natural selection. In natural selection , some living things produce more offspring than others, so they pass more genes to the next generation than others do. Over many generations, this can lead to major changes in the characteristics of living things. Evolution explains how living things are changing today and how modern living things have descended from ancient life forms that no longer exist on Earth. Q: What is the change of characteristics of living things over time? Choices: - spontaneous mutation - adaptation - generation - evolution A:
(A).
evolution
Ques:Answer the following question given this paragraph: Recall that the four different sublevels (s, p, d, and f) each consist of a different number of orbitals. The s sublevel has one orbital, the p sublevel has three orbitals, the d sublevel has five orbitals, and the f sublevel has seven orbitals. In the first period, only the 1s sublevel is being filled. Since all orbitals can hold two electrons, the entire first period consists of just two elements. In the second period, the 2s sublevel, with two electrons, and the 2p sublevel, with six electrons, are being filled. Consequently, the second period contains eight elements. The third period is similar to the second, except the 3s and 3p sublevels are being filled. Because the 3d sublevel does not fill until after the 4s sublevel, the fourth period contains 18 elements, due to the 10 additional electrons that can be accommodated by the 3d orbitals. The fifth period is similar to the fourth. After the 6s sublevel fills, the 4f sublevel is populated with up to 14 electrons. This is followed by the 5d and the 6p sublevels. The total number of elements in the sixth period is 32. The seventh period also contains 32 elements, most of which are too unstable to be found in nature. All 32 have been detected or synthesized, although for some of the later elements in this period, only a handful of atoms have ever been made. Q: All members of a species living together form a what? Choices: - family - group - organization - population A:

Ans:population
Answer the following question given this paragraph: Many biochemical processes occur through sequences of reactions called pathways. The total energy released by many of these pathways is much more than the energy a cell could handle if it were all released in a single step. For example, the combustion of glucose in a single step would release enough energy to kill a cell. By using a series of smaller steps that release less energy per reaction, however, the cell can extract the maximum energy from glucose without being destroyed. Referring to Equation 5.30, calculate how many grams of glucose would need to be metabolized to raise the temperature of a liver cell from an average body 3. Q: Some biochemical processes happen via sequences of reactions which are called what? Choices: - synthesis - mutations - metabolism - pathways A:
pathways