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okay thanks but who guessed I don't wanna fail please just tell me the truth ill do anything if your right
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Staph infections caused by the bacterium staphylococcus aureus are increasing in frequency and are more difficult to treat with antibiotics many staph infections are now caused by mrsa and methicllian resistant strain of s aureus. What explains the more widespread phenomenon of mrsa prevalence in staph infections
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Answer:
This question lacks options, options are: A) Vaccines for MRSA have become not effective because of changes to human immune systems. B) The presence of antibiotics induced the bacterial genomes to mutate and develop resistance to the drug. C) Decreased hospital sanitation practices to save money have resulted in increased presence of resistant staph infections. D) Selective pressures by excessive antibiotic use have increased the frequency of resistant strains of S. aureus over the last few decades.The correct answer is D.
Explanation:
The susceptibility of the various germs has varied greatly in recent years. Strains that had been consistently susceptible to all antimicrobial agents for decades have now developed resistance to these classic therapies, they have the ability to rapidly develop resistance to the newer antimicrobials. Methicillin Resistant Staphylococci (MRSA) is a clear example of this situation. The mechanism that confers resistance to methicillin is complex, since the bacterium has generated a genetic variation, which is encoded in the mecA gene, by which it modifies the structure of its penicillin-binding or binding protein (PBP2a), This prevents methicillin from adhering to the place where it is going to exert the action of blocking the transpeptidase enzyme (whose function in the bacterial life cycle is to synthesize the bacterial wall).Resistance to methicillin in strains of S. aureus is a growing problem worldwide, and staphylococcus gold is an agent that spreads easily and the behavior of the process is aggressive, with which this agent not only carries resistance to methicillin , but rather all ß-lactam antibiotics, including cephalosporins and carbapenem.
Answer:
D. Selective pressures by excessive antibiotic use have increased the frequency of resistant strains of S. aureus over the last few decades
Explanation:
A biologist pollinates a true-breeding yellow flower with pollen from a true-breeding red flower of the same species. All of the F1 offspring are yellow. What question can be answered with the F2 cross?
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Answer:
See the answer below
Explanation:
The question that can be answered with the F2 cross would be if the yellow flower color is dominant over the red flower color in the species. In other words, whether the inheritance of flower color follows a simple Mendelian inheritance or otherwise can be answered.
Assuming that the inheritance of the flower color follows the Mendelian pattern, the red flower trait would re-emerge among the F2 offspring and the ratio of yellow to red flower offspring would approximately be equal to 3:1. Otherwise, a more complex pattern of inheritance would be involved.
The point on earths surface where the earthquakes energy first occurs is the
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Answer:the fault
Explanation:
question 20 , please help:(
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The opossum, which is native to North America, and the kangaroo, which is native to Australia, are marsupials.
The fact that both these mammals incubate their immature offspring in a pouch provides evidence that they -
O are descended from a common ancestor
O belong to the same species
O must range great distances to eat
have very similar skeletal structures
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Answer:
Belong to the same species
Explanation:
Marsupials carry their young in "pouches", and are therefore related to other marsupials, like the kangaroo, opossum, wombats, and koala to name a few.
The opossum is a native of North America as the kangaroo is a native to Australia and both of them are mammals thus boh belong to the same specie. Thus option B is correct.
What are mammals?A mammal is an animal that is warm-blooded and has hair, vertebrates, and backbone. These creatures share human relations and produce milk for their young ones. The kangaroo is like an opossum that is marsupials carry their young in "pouches".
Find out more information about mammals.
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PLZ HELP I WILL GIVE 25 POINTS AND BRAINLIEST!
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Answer: C
Explanation:
complete mitosis in shorter time
I WILL DO ANYTHINK< PLEASE DONT IGNORE I NEED HELP
What must occur in order to make a legal free pass?
use two hands
the throw must be underhand
the pass must be lateral or backwards
the throw must be a forward pass
the ball must touch the inside of the player's foot, but only on a change of possession
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Answer:
Explanation:
the ball must touch the inside of the player's foot, but only on a change of possession
(AKS 4c, DOK 3) Which explanation below accurately describes the
relationship between photosynthesis and cellular respiration?
Photosynthesis uses water and carbon dioxide in the presence of light to create
sugars with a by-product of oxygen. These sugars are used by the organism in the
presence of oxygen to make energy (frequently ATP) that can be used in cellular
processes with a by-product of water and carbon dioxide.
O
Cellular respiration uses oxygen and water in the presence of light to create sugars
with a by-product of carbon dioxide. These sugars are used by the organism in the
presence of carbon dioxide to make energy (frequently ATP) that can be used in
cellular processes with a by-product of water and oxygen.
Photosynthesis uses oxygen and water in the presence of light to create sugars with a
by-product of carbon dioxide. These sugars are used by the organism in the presence
of carbon dioxide to make energy (frequently ATP) that can be used in cellular
processes with a by-product of water and oxygen.
Cellular respiration uses water and carbon dioxide in the presence of light to create
sugars with a by-product of oxygen. These ars are used the organism in the
presence of oxygen to make energy (frequently ATP) that can be used in cellular
processes with a by-product of water and carbon dioxide.
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Answer:
Photosynthesis uses water and carbon dioxide in the presence of light to create
sugars with a by-product of oxygen. These sugars are used by the organism in the
presence of oxygen to make energy (frequently ATP) that can be used in cellular
processes with a by-product of water and carbon dioxide.
Explanation:
photosynthesis= water+CO2+light energy --> sugar + oxygen
cellular respiration is the exact opposite equation except you use ATP energy in place of light energy
The relationship between photosynthesis and cellular respiration is that Photosynthesis uses water and carbon dioxide in the presence of light to create sugars with a by-product of oxygen. These sugars are used by the organism in the presence of oxygen to make energy (frequently ATP) that can be used in cellular and processes with a by-product of water and carbon dioxide.
What is photosynthesis?Photosynthesis is known as the process in which the green plants prepare their own food in the presence of sunlight and heat energy converted into chemical energy in the process of photosynthesis and green plants prepare their own food so they are known as the autotrophs.
The relationship between photosynthesis and cellular respiration is that Photosynthesis uses water and carbon dioxide in the presence of light to create sugars with a by-product of oxygen. These sugars are used by the organism in the presence of oxygen to make energy (frequently ATP) that can be used in cellular and processes with a by-product of water and carbon dioxide.
Therefore, These sugars are used by the organism in the presence of oxygen to make energy (frequently ATP) that can be used in cellular and processes with a by-product of water and carbon dioxide.
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What Process is shown in this image?
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Answer:
Pretty sure it's Respiration, but not totally sure
HELP I NEED FAST PLZZZ Belinda wrote the following phrase to describe the movement of particles in a state of matter.
"Marbles glide past one another."
Which state of matter did Belinda most likely describe?
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Answer:
Liquid
Explanation:
Its liquid!!!
What is the proper way to write a scientific name of an organism?
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Explanation:
The correct way to write a scientific name is by using the genus and species of the organism.
hope it helps!
A mutation that could be inherited by offspring would result from-?
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Answer: Along with substitutions, mutations can also be caused by insertions, deletions, or duplications of DNA sequences. Some mutations are hereditary because they are passed down to an offspring from a parent carrying a mutation through the germ line, meaning through an egg or sperm cell carrying the mutation.
Explanation:
A mutation that could be inherited by offspring would leads from a base substitution in gametes during meiosis. The correct option is D.
What is mutation?Any alteration to a cell's DNA sequence. Alterations in cell division can result in specific mutations.
As can exposure to environmental DNA-damaging substances. Mutations may be negative, positive, or ineffective.
Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.
Somatic mutations (which happen in body cells) cannot be passed on to offspring, whereas germline mutations (which happen in eggs and sperm) can.
A base substitution in gametes during meiosis would result in a mutation that might be passed on to progeny.
Thus, the correct option is D.
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Your question seems incomplete, the probable complete question is:
A mutation that could be inherited by offspring would result from-?
Artificial selection has produced a wide variety of crop plants, livestock, and pets. Which characteristic of artificial selection makes it different from natural selection
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Answer:
Genetic Problems
Explanation:
When people genetically modify animals, they can mess up a lot of their natural abilities. For example in some cases scientist have made cows who produce more milk, but couldn't reproduce anymore because of it. Sometimes it even hurts the animal. People have bred dogs in certain ways that makes it hard for them to breathe, like Bull dogs who has respiratory issues. This makes decreases their life span and continuing to bred them will only make it worse. When scientist have a certain trait they want they also make animals breed with their own families. Incest creates a lot of genetic problems.
I hope this helped.
What is the function of RNA polymerase in the process of transcription?
A. It turns RNA into a polymer (long chain of repeating molecules)
B. It turns DNA into a polymer (long chain of repeating monomers)
C. It unzips RNA
D. it unzips DNA
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Which point shows the prevailing westerlies?
O1
O 2
O3
O4
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Answer:
1
Explanation:
Prevailing Westerlies are the winds in the middle latitudes between 35 and 65 degrees latitude. They tend to blow from the high pressure area in the horse latitudes towards the poles. These prevailing winds blow from the west to the east steering extra-tropical cyclones in this general manner.
what would be observed when a growing seedling is placed horizontally
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Answer:
it will slowey become less horizontal as time flies by
Explanation:
Write this!
If you were to place a seed down horizontally, the roots and the shoot will be grown horizontally, but when the plant grows, it will slowey become less horizontal as time flies by and shape back into a straight manner towards the sunlight, this would be a example of a term known as geotropism (the response of plants from gravity).
How does a plant cell differ from an animal cell? Group of answer choices A plant cell can make its own glucose; an animal cell cannot A plant cell cannot synthesize proteins an animal cell can. A plat cell cannot perform cellular respiration; an animal cell can.
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Answer:
plant cell can make its own glucose; an animal cell cannot
Explanation:
Chloroplasts are found in plant cells, but not in animal cells. The purpose of the chloroplast is to make glucose that feed the cell's machinery. Photosynthesis is the process of a plant taking energy from the Sun and creating glucose.
I THOUGHT MATH SUCK BUT MAN, I HATE BIOLOGY!!!!!! CAN SOMEBODY JUST TRY AND HELP ME WITH THESE PLS!!!!!!!!!!!! BRAINLIEST
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Answer:
C: Met, Pro, Leu, Thr
Explanation:
AUG is met
CCA is Pro
UUG is Leu
ACG is Thr
The first letter is on the left side
Once you have that row, the second letter is on top
Then look for last the three letters in that box
Question 29: nucleus A, contains dna(chromosomes) and is the control center
Question 30: plant cell, has a mitochondria, ribosomes, the wall, and nuclei
Which of the following shows the sequence of levels of organization that are shown in the illustration above?
A.tissue, cell, organ system, organ
B.cell, tissue, organ, organ system
C.cell, organ, organ system, tissue
D.tissue, organ, cell, organ system
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Answer:
B.cell, tissue, organ, organ system
Explanation:
Because the cell make up the tissue the tissue makes up an organ and an organ makes up an organ system
Please help I'm timed!!!
Which of the following statements best describes chromosomes?
A.
Humans have more than 460 chromosomes in every cell of the body.
B.
Chromosomes are threadlike structures that carry genetic information.
C.
Humans receive the majority of their chromosomes from their mother.
D.
Chromosomes are arranged in 20 distinct pairs in the human body.
Please select the best answer from the choices provided
A
B
C
D
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Answer:
B. Chromosomes are threadlike structures that carry genetic information
Explanation:
Normally developed humans carry about 46 chromosomes in each cell, so A is false.
The numver of chromosomes is equal from the mother and the father, so C is false.
Chromosomes are arranged in 23 distinct pairs, so D is false.
The statement that best describes chromosomes is: Chromosomes are the threadlike structures that carry the genetic information.
What is a chromosome?It is a structure that is present in both prokaryotes and eukaryotes and is composed of nucleic acid (DNA) and proteins. It is responsible for genetic information.
Facts about chromosomes:Humans have 46 chromosomes in all somatic cells, and the reproductive cells except in the sperm and ova, which are haploid with 23 chromosomes only. Humans receive one set of 23 chromosomes from their mother and the other set from their father.Chromosomes are arranged in 23 distinct pairs in the human body.Hence, option b) is the correct option.
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What do we call the “X” chromosome that condenses and is “shut off?”
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Answer:
One of the two X chromosomes is randomly and permanently inactivated in cells other than egg cells, this is called X-inactivation or lyonization
Explanation: This is all I could find, sorry if it's not what you need.
CDC recommendations on antibiotic use include...
•stop taking the antibiotic after you start feeling better
•take all of your prescribed antibiotic regardless of how you are feeling
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Explanation:
the second choice. even if you are feeling better the bacteria may still be there. if you stop taking the antibiotics the bacteria will mutate and become stronger and more immune to the original antibiotics. this could end up deadly
Type 1 diabetes is caused by destruction of beta cells in the pancreas that produce insulin. Which of the following best explains how insulin injections affect signal transduction in an individual with type 1 diabetes?
They allow alternate signaling transduction pathways to control glucose levels.
They open channels to allow signaling molecules to enter pancreatic cells.
They provide a signaling molecule to begin the signal transduction pathway.
They serve as second messengers to regulate glucose uptake by cells.
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Answer:
They provide a signaling molecule to begin the signal transduction pathway.
Explanation:
Just took the quiz and got it right.
Access 2021
AP Biology
Insulin injections affect signal transduction in an individual with type 1 diabetes. They provide a signaling molecule to begin the signal transduction pathway.
What are the function of insulin injections?
They allow alternate signaling transduction pathways to control glucose levels. They open channels to allow signaling molecules to enter pancreatic cells. They provide a signaling molecule to begin the signal transduction pathway. They serve as second messengers to regulate glucose uptake by cells.
Type 1 diabetes is caused by destruction of beta cells in the pancreas that produce insulin. They open channels to allow signaling molecules to enter pancreatic cells. They provide a signaling molecule to begin the signal transduction pathway.
Therefore, Insulin injections affect signal transduction in an individual with type 1 diabetes. They provide a signaling molecule to begin the signal transduction pathway.
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Name the parts of the atoms. Include the charge, mass, and location of each.
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the charge to proton is large with positive charge.
the charge to neutron is large with no charge
the charge to electron is small with negative charge
Use the following strand of mRNA and translate it into amino acids
mRNA: AUGCCGU AU
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aug-start or methionine
CCG-proline
UAU-Tyrosine
Question 3
Which of the following would a cell from heart muscle most likely have an unusually high proportion of?
A lysosomes
B-mitochondria
C-Golgi bodies
D-mRNA
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Answer:
a
Explanation:
Answer: Mitochondria
4. When a student cats a hamburger and then uses the energy from the
hamburger to play basketball, the student's body converts-
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Answer:
Chemical energy into mechanical energy.
hope this helps.
In ____ ecosystem decomposers breakdown dead or decaying organisms, returning nutrients to the soil to be used by plants.
a. An unstable
b. A balanced
c. A defective
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What are the four cell types in in Trichoplax Adhaerens? Explain their locations within the animal.
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Trichoplax contains at least six somatic cell types: dorsal and ventral epithelial cells, lipophils, fiber cells, gland cells and crystal cells.
Trichoplax contains at least six somatic cell types: dorsal and ventral epithelial cells, lipophils, fiber cells, gland cells and crystal cells.
what is somatic cell ?Somatic cells are involve in the growth and development of an organism required for repair and regeneration
Somatic cells participate in mitosis and contain the same set of chromosomes, these cells have a diploid set of chromosomes as compared to gametes produced by meiosis and have a haploid set of chromosomes
Somatic cells undergo mutation frequently as compared to germ cells, used for cloning by which an identical clone of an individual is produced
Somatic cell nuclear transfer is one such process where the nucleus of a somatic cell is transferred to an ovum cell. Somatic cells are used to conserve genetic information of animals.
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