Answer the following question given this paragraph: Q: Historically, certain bacteriophages have also been used as cloning vectors for making what? Choices: - specific libraries - diverse libraries - ultraviolet libraries - genomic libraries A:
genomic libraries
Answer the following question given this paragraph: Smooth muscles and cardiac muscles are not attached to bone. Recall that these types of muscles are under involuntary control. Smooth muscle is responsible for the contractility of hollow organs, such as blood vessels, the gastrointestinal tract, the bladder, or the uterus. Like skeletal muscles, smooth muscle fibers do contract together, causing the muscle to shorten. Smooth muscles have numerous functions, including the following. Q: What kind of muscle is responsible for hollow organs contracting? Choices: - micro muscle - tough muscle - rough muscle - smooth muscle A:
smooth muscle
Q: Answer the following question given this paragraph: Q: Blood leaves the left ventricle via the what? Choices: - dorsal chamber - atrium - capillary - aorta A:
A: aorta
Question: Answer the following question given this paragraph: How water transports particles depends on their size. When water slows down, it starts depositing sediment, starting with the largest particles first. Q: When water slows down, it starts depositing sediment, starting with which particles first? Choices: - smallest - finest - lightest - largest A:
Answer: largest
*Question*
Answer the following question given this paragraph: Q: What type of air do plants take in and use? Choices: - oxygen - liquid dioxide - carbon - carbon dioxide A:
**Answer**
carbon dioxide
*Question*
Answer the following question given this paragraph: In Silver Springs, the TLTE between the first two trophic levels was approximately 14.8 percent. The low efficiency of energy transfer between trophic levels is usually the major factor that limits the length of food chains observed in a food web. The fact is, after four to six energy transfers, there is not enough energy left to support another trophic level. In the Lake Ontario example shown in Figure 46.6, only three energy transfers occurred between the primary producer, (green algae), and the apex consumer (Chinook salmon). Ecologists have many different methods of measuring energy transfers within ecosystems. Some transfers are easier or more difficult to measure depending on the complexity of the ecosystem and how much access scientists have to observe the ecosystem. In other words, some ecosystems are more difficult to study than others, and sometimes the quantification of energy transfers has to be estimated. Another main parameter that is important in characterizing energy flow within an ecosystem is the net production efficiency. Net production efficiency (NPE) allows ecologists to quantify how efficiently organisms of a particular trophic level incorporate the energy they receive into biomass; it is calculated using the following formula:. Q: Net production efficiency allows ecologists to quantify how efficiently organisms of a particular what incorporate the energy they receive into biomass? Choices: - hypothesized level - neural level - sea level - trophic level A:
**Answer**
trophic level