A way in which models cannot be useful is: B). being a perfect representation of a situation.
<h3>What is a model?</h3>
A model can be defined as the creation of a physical object either from kits, components or other applicable materials that are acquired by the builder, so as to simulate a phenomenon or process.
This ultimately implies that, a model should be probabilistic in nature rather than being perfect, so as to effectively illustrate or describe the relationship that is existing between an independent variable and the dependent variable.
Generally, some of the ways in which models cannot be useful include the following:
- Building intuition for situations.
- Making predictions that can be verified.
In conclusion, we can infer and logically deduce that way in which models cannot be useful is being a perfect representation of a situation.
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Adults of species in the order <u>Coleoptera</u> have 2 wings and the greatest variety of mouthparts.
<h3>Order Coleoptera</h3>
The coleopterans, (order Coleoptera), consist of the beetles and weevils. It is the largest order of insects.
They have two pairs of wings:
- One of the pair is the hard-shelled outer wings known as the “elytra”. These are not used for flying, but to protect the beetle's flying set of wings and its body as it crawls through narrow passages and tunnels in a tree.
- The second set of wings is membranous and is folded under the elytra when not in use.
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The protons are pumped across the inner mitochondrial membrane from the inner matrix to the intermembrane space by the energy employed in the electron transport chain, creating a significant gradient in the hydrogen concentration. When it was discovered, this process was known as chemiosmosis.
<h3>The inner membrane is what?</h3>
The inner or cytoplasmic membrane controls the flow of nutrients, metabolites, macromolecules, and information into and out of the cytoplasm and preserves the proton motive force necessary for energy storage. It is impermeable to polar molecules.
<h3>What use does the intermembrane serve?</h3>
Proteins that are essential for mitochondrial energetics and apoptosis are found in the intermembrane region between the outer and inner membranes (process of programmed cell death). The inner membrane is significantly less permeable to ions and molecules than the outer membrane.
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Answer:
"Growers using organic soils will never concern themselves with supplying oxygen to their plants; however, hydroponic growers like me must be well versed in the science of dissolved oxygen (from here on out called DO). While most crops seem to prefer about 9 PPM DO, some crops like lettuce have demonstrated little to no difference in fresh weight or dry weight when grown in DO levels ranging …"
Explanation:
Answer:
C. 3, 2, 1
Explanation:
During a single PCR cycle, the very first step is the heat separation of the double stranded DNA. Primer binds only single stranded DNA/RNA because it has complimentary bases which match single strand of DNA/RNA that is why it is necessary to unwind both the strands of DNA by providing temperature.
As soon as the DNA strands have separated by increasing the temperature to ~ 95 °C, in the next step the primer binds the portion of DNA which is complimentary to the bases of the primer. In order for primer to bind DNA, the temperature is lowered to ~ 72 °C and the process is called as annealing.
Once primer has bound to the DNA, the next step is polymerization i.e. nucleotides which are the monomer units of DNA are added one by one with the help of enzyme named as Taq polymerase. This is how the strand extends ahead of primer and exact copies of the given DNA are produced.
Note: PCR may be considered as in vitro DNA synthesis or replication.
