Answer the following question given this paragraph: Chemical elements and water are recycled through biogeochemical cycles. The cycles include both biotic and abiotic parts of ecosystems. Q: Chemical elements and water are recycled through what cycle? Choices: - biogenic - evaporation - dynamical - biogeochemical A:
biogeochemical
Answer the following question given this paragraph: Acids can dissolve many metals; a spilled acid can lead to contamination. Q: What corrosive substances capable of dissolving many metals can cause contamination if spilled? Choices: - salts - bases - ions - acids A:
acids
Q: Answer the following question given this paragraph: When waves of two different frequencies interfere, a phenomenon known as beating occurs. The frequency of a beat is the difference of the two frequencies. Q: When waves of two different frequencies interfere, what phenomenon occurs? Choices: - making - opening - soaking - beating A:
A: beating
Question: Answer the following question given this paragraph: Q: When skunks are in danger what do they give off? Choices: - warning howls - ejected quills - sweet odor - foul smell A:
Answer: foul smell
*Question*
Answer the following question given this paragraph: Chapter 9 1 Figure 9.10 Ligase, as this enzyme joins together Okazaki fragments. 2 A 4 B 6 A 8 C 10 D 12 The DNA is wound around proteins called histones. The histones then stack together in a compact form that creates a fiber that is 30-nm thick. The fiber is further coiled for greater compactness. During metaphase of mitosis, the chromosome is at its most compact to facilitate chromosome movement. During interphase, there are denser areas of chromatin, called heterochromatin, that contain DNA that is not expressed, and less dense euchromatin that contains DNA that is expressed. 14 Telomerase has an inbuilt RNA template. Q: The dna is wound around proteins called what? Choices: - leptons - nucleotides - pepsins - histones A:
**Answer**
histones
Answer the following question given this paragraph: All chemical reactions involve energy. Some chemical reactions consume energy, whereas other chemical reactions release energy. Chemical reactions can be either spontaneous, which do not require an input of energy, or non-spontaneous, which does require an input of some type of energy. Energy may be in the form of heat, light or electricity. Each of the energy changes that occur during a reaction are graphed in Figure below . In the reaction on the left, energy is released. In the reaction on the right, energy is consumed. Q: What types of energy is released during a chemical reaction? Choices: - human, magnetic, electrical - temperature , electricity , light - magnetism, electricity, light - heat, electricity, light A:
heat, electricity, light