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RNA in cells differs from DNA in that it is single-stranded and can fold up into a variety of structures.
RNA is the abbreviation for RiboNucleic Acid. It is a biological molecule that fulfills an important role by copying the information stored in the DNA (DeoxyriboNucleic Acid) and transporting it to the different proteins by folding into different shapes. Its name come from a Ribose molecule that is present in this single-stranded molecule.
Viruses don't have DNA, only RNA. They only replicate in the host's cells by copying their own RNA information.
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Answer:
The correct answer is "USDA Appendix B".
Explanation:
The United States Department of Agriculture (USDA) have a series of Guidance Documentation that clarify the obligations that people must follow in order to properly handle agricultural products. The USDA Appendix B entitled "Compliance Guidelines for Cooling Heat-Treated Meat and Poultry Products (Stabilization)", states the procedure that must be followed to chill a product to reduce the growth of foodborne pathogens.
The two jet streams that affect our weather in the continental US are the polar jets and the subtropical<span> jets. They are responsible for transporting weather systems that affect us. The polar front is the boundary between the cold North Pole air and the warm equatorial air</span>
Answer:
C. Point B
Explanation:
The exposed curve represents a logistic growth model. Population growth depends on density. Natality and mortality depend on the population size, meaning that there is no independence between population growth and population density.
When a population grows in a limited space, density rises gradually and eventually affects the multiplication rate. The population per capita growth rate decreases as population size increases. The population reaches a maximum point delimited by available resources, such as food or space. This point is known as the carrying capacity, K.
K is a constant that equals population size at the equilibrium point, in which the natality and the mortality rate get qual to each other.
Referring to population size as N, when
- N<K, the population can still grow.
- N approximates to K, the population´s growth speed decreases.
- N=K the population reaches equilibrium,
- N>K, the population must decrease in size because there are not enough resources to maintain that size.
The sigmoid curve represents the logistic growth model.
- Point A: During this period, the population size is relatively stable. Little growth is expressed.
- Point B: At the beginning of this period, population growth increases softly. The more individuals are in the population, the more that reaches sexual maturity and get to reproduce, leaving fertile offspring. This fertile offspring also get to reproduce and leave more fertile individuals. At the end of the period, the curve shows a sharp slope, reflecting the significant increase in the population reproductive rate.
- Point C: At the beginning of this period, the population keeps on growing exponentially. But at the end of the period, the curve tends to stabilize, meaning that the population stops growing in size so fast. The population slow and gradually reaches the equilibrium point, K.
- Point D: The population got to stabilize.
This can provide a direction to give the appropriate and best management to the patient. THis can enhance the quality of healthcare and reduced the erroneous work which can be dangerous or fatal to the patients. Provide access to care and contain the cost of health services. This can be achieve with the use of intuitive thinking, leadership and learning from previous experiences. This can be combined for an effective approach.
