Answers
Answer:
Repetition
Explanation:
In science, the act of performing an experiment several times is called repetition. This involves obtaining multiple trials of an experiment in order to ensure accuracy and precision.
Multiple trials ensures that the best result which eliminates errors represents the findings.
Repetition gives a pool of important statistics to work with which can raise the confidence limit and provide more representation.
Answer:
repition
Explanation:
Related Questions
Which of the following relies on amolecule binding to the repressor to prevent the repressor from binding to the operator? a. repression b. gene expression c. an operon d. induction
Table sugar is mixed with water, and the table sugar disappears intosolution. How do you suggest we remove the table sugar out the solution?Freeze the solution.Filter out the sugar.Boil the solution.
Which of the following statements is true? Viruses do not cause communicable diseases. Vaccines are 100 percent effective in preventing disease. Communicable disease can be spread by inanimate objects, such as doorknobs. The best way to prevent catching a cold is to get yearly vaccinations.
What is the role of a solvent? It dissolves the solute in a mixture. It gets dissolved in a mixture It helps mix solids together. h It keeps the parts of a mixture separated!
B) The enzymes of glycolysis are located in the cytosol of the cell.
C) Glycolysis can operate in the complete absence of O2.
D) The end products of glycolysis are CO2 and H20.
E) Glycolysis makes ATP exclusively through substrate-level phosphorylation.
Answers
Answer:
D
Explanation:
The end product of glycolysis is pyruvate. This process occurs in the cytosol of the cell in the absence of oxygen and has a net ATP production of 2 and 2 NADH. When there is no oxygen, the pyruvate is converted to lactic acid. When there is oxygen , the pyruvate is channeled to the Krebs cycle in the mitochondria where it is used to produce more ATP. The formation of ATP in glycolysis is powered by the energy in the bonds of the molecules (substrate-level phosphorylation). This is unlike in Krebs cycle where most of ATP are formed through oxidative phosphorylation. The end products of Krebs cycle is CO₂ and H₂O.
All of the following statements about glycolysis are true except the one that states- The end products of glycolysis are CO2 and H2O. So the correct option is option D.
The glycolysis process can take place when there is oxygen present (aerobic) or when there is no oxygen present (anaerobic). Pyruvate is transformed into lactic acid in anaerobic conditions. The fact that glycolysis occurs widely in other species suggests that it is an old metabolic pathway.
Glycolysis in most cells takes place in the cellular cytosol. The process of glycolysis can be divided into two stages: the investment stage, in which ATP is initially consumed, and the yield stage, in which more ATP is eventually produced.
To learn more about glycolysis, refer to the link:
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Answers
Answer:
Clinical study report. In medicine, a clinical study report (CSR) on a clinical trial is a document, typically very long, providing much detail about the methods and results of a trial. A CSR is a scientific document addressing efficacy and safety, not a sales or marketing tool; its content is similar to that of a peer-reviewed academic paper.
Explanation:
Answers
Answer:
Explanation:
The disease sickle cell anemia is caused by homozygosity for a mutation:
- SS or Ss genotypes: normal
- ss: anemia
Albinism is a recessive trait:
- AA or Aa: normal
- aa: albinism
The genes S/s and A/a are linked and separated by 1 map unit.
Remember that 1 mu means that 1% of the gametes produced by an individual will be recombinant.
a) Albino man (Sa/Sa) X woman with sickle-cell anemia (sA/sA)
Son: Sa/sA
The gametes he can produce are:
- Parentals: Sa and sA
- Recombinant: SA and sa
Since the frequency of recombination is 1% (or 0.01), each recombinant gamete has a frequency of 0.005 (since there are two possible recombinant gametes).
The parental gametes will appear with a frequency of 0.99, each of them with a frequenct of 0.495.
b) Normal man (SA/SA) X woman with anemia and albinism (sa/sa)
Daughter: SA/sa
The gametes she can produce are:
- Parentals: SA (0.495) and sa (0.495)
- Recombinant: Sa (0.005) and sA (0.005)
c) Son (Sa/sA) X daughter (SA/sa)
In order for them to have an albino child with anemia (sa/sa), the gamete sa from each parent had to be produced and fused into the zygote. Since the production of gametes by each parent is an independent event, the probability of having sa/sa offspring can be calculated as:
Prob. sa gamete son × Prob. sa gamete daughter = 0.005 × 0.495 = 0.0025
The probability that a child of theirs will be an albino with sickle-cell anemia is 0.25%
Answers
Answer:
They have shown in numerous studies that enzyme output gradually decreases with age and may be reduced by more than 60% by the time we reach age 55. At some point in time, we must supplement our enzyme reserves in order to fight the degenerative conditions associated with aging.
Explanation:
the nervous system supplies the blood and oxygen to developing bones
B
the nervous system supplies nutrients and minerals to developing bones
C
the skeletal system controls the messages sent to the brain and spinal cord
D
the skeletal system provides protection for the brain and spinal cord
Answers
Answer:
D
Explanation:
Bones provide calcium that is essential for the proper functioning of the nervous system.
Answer:
c is the answer it sends messages
Answers
The final radii of the arteriole is reduced by the factor of 0.409 after the constriction of the arteriole.
The flow rate is defined as the amount of fluid flow through the artery in the given time period at the cross-sectional area.
Computation for the radii of constricted arterioles
The flow rate for the artery is given by:
Where, P is the pressure, r is the radius, is the viscosity, and l is the length.
The value of flow rate is reduced to 2.80 % of its natural values. The reduced flow rate is given as:
The ratio of the flow rate is given as:
The final radii of the arteriole is reduced by the factor of 0.409 after the constriction of the arteriole.
Learn more about flow rate, here:
Answer:
The main factor that causes vasoconstriction is the high concentration calcium inside muscle cells.
Explanation:
When the vessels suffer vasoconstriction, the blood supply is decreased and in this way the heat of the body is maintained. The way this happens is because the blood can no longer reach the surface and therefore decreases outward heat radiation. The main factor that causes vasoconstriction is the high concentration calcium inside muscle cells. There are several factors that cause vasoconstriction, internal or external. Environment is one of the external factors, and what happens to the penguins' feet is an example for it, since they are trying to preserve body heat to survive.