Final answer:
The rise in MRSA strains among S. aureus isolates is due to the overuse and misuse of antibiotics, which selects for resistant strains. MRSA, resistant to many antibiotics, poses a significant health risk both in healthcare settings and in the community.
Explanation:
The process that has led to an increase in the percentage of MRSA strains among Staphylococcus aureus isolates from 1 to 5% in 1980 to 60 to 70% now is largely due to the imprudent use of antibiotics. This misuse fosters the expansion of populations of antibiotic-resistant bacterial forms. Methicillin-resistant Staphylococcus aureus (MRSA), which is resistant to multiple commonly used antibiotics such as methicillin, amoxicillin, penicillin, and oxacillin, represents a significant health challenge in various environments. Originally prevalent in healthcare settings, MRSA strains are now also found in the community, affecting younger populations. The development of MRSA is a classic example of bacterial adaptation through the selection pressure exerted by antibiotic use, resulting in strains that are challenging to treat due to their resistance to nearly all available antibiotics.
What effect does skipping breakfast have on daily food intake patterns?
Research indicates that skipping breakfast increases food portion intake for the rest of the day. This is due to increased hunger pangs. This result to overeating in the other meals of the day, by especially craving for foods with higher energy densities. Eating breakfast is usually advisable for person tying to lose weight or avoid obesity.
The answer is resulting into the effect of overeating in different meals of the day.
Explanation:It is all because of the hunger increased pangs that will be responsible for skipping of the food meals. This will be resulting into the overeating of the meals at the high energy based densities.
The development of specialized tissues and organs in a multicellular organism's embryo occurs as a result of
The development of specialized tissues and organs in a multicellular organism's embryo occurs as a result of the differentiation process.
What is Embryo?
An unborn baby at an early stage of development in the uterus is called an embryo. It is responsible for the development of simple to complex structures in the body of multicellular organisms.
Differentiation is a process of the generation of specialized cell types and organs in multicellular organisms. During this process, a cell ceases to divide and develops specialized structural elements and distinct functional properties.
Therefore, the development of specialized tissues and organs in a multicellular organism's embryo occurs as a result of the differentiation process.
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The vavle preventing blood from re entering left ventricle is
identify the four principles of natural selection
The four principles of natural selection are variation, inheritance, high rate of population growth, and differential survival and reproduction. These principles explain the differences in traits among individuals within a species, the hereditary nature of some of these traits, overproduction of offspring, and the survival advantage of favorable traits.
Explanation:The four principles of natural selection are: Variation, Inheritance, High Rate of Population Growth, and Differential Survival and Reproduction.
The principle of Variation explains that within a population, individuals have diverse traits, these differences could be physical or behavioral. The principle of Inheritance explains that some of these traits are hereditary and can be passed on to the next generation.
The principle of a High Rate of Population Growth says that most species produce more offspring than can survive given the limited resources, and thus many offspring do not survive to reproductive age. The principle of Differential Survival and Reproduction suggests that those individuals with the most favorable traits are more likely to survive and reproduce, thereby passing on these traits to the next generation. This is often referred to as 'survival of the fittest'.
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Which statements describe the relationship between the area and the biodiversity of an ecosystem
The biodiversity of an ecosystem depends on the area of ecosystem as well as the factors that surrounds the ecosystem.
What do you mean by Ecosystem?An ecosystem may be defined as a geographic area where plants, animals, and other organisms interact together for the need of one another.
Biodiversity refers to the variety of life on Earth at all levels, from genes to ecosystems exist. The biodiversity of a large ecosystem is usually higher as compared to small ecosystem. It also depends on the factors that surrounds the ecosystem.
Therefore, it is described above.
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Dana is intending to breastfeed her baby after he is born. she has read that breast milk differs significantly from cow's milk and that cow's milk should not be introduced until the baby is at least one year old. how does breastmilk differ from cow's milk
Cow’s milk contains low quantity of some vitamins such as vitamin C, D and A than human breast milk. Also, Cow's milk contains high amount of protein, and low amount of carbohydrates. One of the proteins present in cow's milk is difficult for infants to digest and may cause an allergic response making cow’s milk unsuitable for infants.
Cows milk store bought is heavily pasteurized which the baby's stomach cannot digest. Raw cows milk is a safer chance of being a milk replacement to the baby as long as the cow does not have chemicals in her system such as antibiotics, added hormones or eats GMO grains that will be transferred to her milk.
Breast milk is only safe if the mother's diet is safe, as it is with a cows as well.
At chemical synapses, _________ primarily dictates the postsynaptic response.
the largest blood vessel in the human body is the
The largest blood vessel is the Aorta, this is located to the left of your heart. Its a important blood vessel!
hope this helps :)
What protects your skin that is made of flattened skin cells?
During the follicular phase, granulosa cells secrete ________, which stimulates secretion of ________.
During the follicular phase, granulosa cells secrete estrogen, which stimulates secretion of gonadotropin-releasing hormone (GnRH), which then increases production of luteinizing hormone (LH). The follicular phase is the phase of the menstrual cycle, during which follicles in the ovary mature and it ends with ovulation.
During the follicular phase, granulosa cells secrete estrogen which stimulates the secretion of gonadotropins such as FSH and LH.
During the follicular phase, granulosa cells secrete estrogen, which stimulates the secretion of gonadotropins by the anterior pituitary gland. Specifically, Follicle-stimulating hormone (FSH) stimulates the follicles leading to their growth and secretion of estrogens. Granulosa and theca cells, upon receiving Luteinizing hormone (LH), produce the sex steroid hormone estradiol. This increase in estrogen levels results in a negative feedback loop that regulates the secretion of GnRH, FSH, and LH to optimize the chances of one dominant follicle reaching maturation and ovulating an egg cell.
How is the moon positioned when there is a high tide?
The _____ species concept works better when classifying asexual species
Phylogenetic species concept
Phylogenetic species concept is when a member of irreducible group descended from a common ancestor and they have combination of certain trait. Also, this concept of species share a unique evolutionary history but focuses on their physiology, morphology and behaviour. However, Phylogenetic species concept works better when classifying asexual species.
What cells are abundant within the large intestine and produce large amounts of lubricating mucus to aid in the passage of feces to the end of the digestive tract?
Will an increase in water temp damage aquarium plants
What is the cause of inflammation of the respiratory bronchioles, alveolar ducts, alveolar sacs, and alveoli of the lungs?
Answer:
There is not just one type of respiratory infection, but several infections that can reach the respiratory tract, some lighter and some more severe. Some of the most common causes of respiratory infections include:
Common Cold or Flu: It is an infection caused by viruses, causing cough, runny nose, sneezing and nasal obstruction. In influenza, there is infection with influenza viruses, which cause more intense symptoms such as body pain and fever.Sinusitis: is the infection caused in the bones of the face and can cause headache, facial pain, nasal discharge, cough and fever, caused by viruses, bacteria or fungi;Pharyngitis: There is infection of the throat region, causing local inflammation, as well as runny nose and cough, most often caused by viruses;Tonsillitis: pharyngitis may be accompanied by tonsil infections, causing intense inflammation, being more intense when there is infection by bacteria, which can produce pus in the region;Bronchitis: is the inflammation of the bronchi, already considered a low respiratory infection, since it already reaches the lungs. It causes coughing and shortness of breath and may have both allergic and infectious causes from viruses or bacteria.Pneumonia: It is the infection of the lungs and pulmonary alveoli, which can cause intense secretion, cough, shortness of breath and fever. It is usually caused by bacteria, it can also be caused by viruses or fungi;Tuberculosis: This is a type of lung infection caused by the bacterium of Koch bacillus, which causes chronic, gradual inflammation with cough, fever, weight loss and weakness, which can become severe if treatment is not done promptly.These infections can be classified as acute when they appear suddenly and rapidly worsen, or as chronic when they have a long lasting, sluggish course and difficult to treat, which often happens in certain cases of sinusitis, bronchitis or tuberculosis. , for example.
Why do you think it is so difficult for some people to accept the idea of continental drift?
What is the type of sand Sue McGrew prefers to use for her sculptures?
(5 letters)
Sue McGrew is a professional sand sculptor from Seattle. She makes amazing sand sculptures that last for few weeks or can vanish in one day. She creates sculpture using beach sand, water and same hand tools. Sue McGrew started making sculpture as hobby and then it became passion for her. She expresses her thought in sand.
The special type of cell division required to produce gametes is: fertilization meiosis capacitation mitosis
The variation associated with meiosis is the result of select one:
a. crossing over
b. chromosome condensation in prophase i
c. b and c
d. fertilization
e. random chromosome arrangement at metaphase i
Oxytocin and antidiuretic hormone (adh) are synthesized in the ________ but released from the ________.
The complete statement is "Oxytocin and antidiuretic hormone (adh) are synthesized in the Hypothalamus but released from the posterior pituitary"
What are Oxytocin and antidiuretic hormone?Generally, Pituitary neuropeptides oxytocin and vasopressin have been shown to influence social behavior in mammals.
In conclusion, Hypothalamus synthesizes the Oxytocin and antidiuretic hormone and is released from the posterior pituitary
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Describe one other type of organism that lives in the ocean that might suffer from intentional human contact. explain one negative affect the contact may have on the organism. provide one reason why the organism you chose may be impacted by human contact.
A group of cells living together, where all cells can carry out all necessary functions of life.
What is the name of the spincter that controls how food enters the stomach?
A codon is a particular combination of three nucleotides. therefore, there are __________ possible combinations of the nucleotides a, c, g, and t. 64 32 12 16 4
The binding of epinephrine to its receptor activates ________ which in turn activates ________. protein kinase a ; adenylyl cyclase protein kinase a ; g protein adenylyl cyclase ; g-protein g-protein ; protein kinase a g-protein ; adenylyl cyclase
The binding of epinephrine to its receptor activates g-protein which in turn activates adenylyl cyclase.
When epinephrine binds to its receptor, it triggers a cascade of events leading to the conversion of ATP to CAMP by adenylyl cyclase. This signaling pathway plays a crucial role in mediating cell-specific responses.
He human eye is poorly suited to night vision, suffering impairments in __________.
The human eye is grief in damage of in-depth perception, color recognition, and peripheral vision. Judging speed and distance based on visual evidence is also more difficult in the dark. In addition, the darkness of night, and even the dimness of dusk and dawn.
Answer:
He human eye is poorly suited to night vision, suffering impairments in seeing the environment in low light situations.
Explanation:
In the eyes are the rods, the neurons responsible for the night vision. In total darkness, there is a need for at least 45 minutes to get the best vision, because the human eye is poorly adapted to night vision and is deficient in seeing in the dark. In the retina of the human eye there are two distinct regions, one responds by the central vision, the macula, and another peripheral vision.
Inside the macula, a region called fovea consists only of cones, which are neurons responsible for maximum vision. The cones do not work in low light conditions. However, around the fovea, there is a mixture of conese rods. This blend allows an intermediate view, which guarantees the ability to see in the penumbra.
The chemical equation below shows the photosynthesis reaction.
6CO2 + 6H2O mc010-1.jpg C6H12O6 + 6O2
The molar mass of carbon dioxide (CO2) is 44.01 g/mol. The molar mass of water (H2O) is 18.01 g/mol. A reaction uses 528 g of CO2. How many moles of water are used in this reaction?
Roosting areas in buildings of any height are the fundamental niche of species 1. 2. interspecific competition between the two bat species occurs because both species prefer the same roosting areas. 3. in parts of the city with only tall buildings (over two stories), competitive exclusion of species 1 may occur. 4. roosting areas in buildings that are one to two stories tall are the realized niche of species 1 when species 2 is present. 5. the change in the roosting habits of species 1 after species 2 became established in the city is an example of resource partitioning. 6. the competition between the species for roosting areas is an example of a intraspecific competition interaction. 7. the changes in the eyes of species 1 are examples of character displacement.
Liquids that do not mix form into layers when they have __________ densities.
Answer:
different
Explanation:
one of the characteristics of retrotransposons is that