Answer:
I think the answer is Human interventions!!!
Which of the following is false concerning Salmonella and Shigella? A. Shigella are H2S + and motile, Salmonella are H2S - and nonmotile. B. Salmonella Typhi causes typhoid fever with serious systemic spread. C. Shigella cause bacillary dysentery. D. There is a capsule and an attenuated living vaccine for typhoid fever. E. Shigella dysenteriae produces the most severe form of shigellosis and may lead to HUS and kidney damage due to production of Shiga toxin.
Answer:
A. Shigella are H2S + and motile, Salmonella are H2S - and nonmotile
Explanation:
Shigella is a genus of Gram-negative (i.e., they have a cell wall composed of a thin layer of peptidoglycan), nonmotile, and facultative anaerobic bacteria; whereas Salmonella species are Gram-negative and facultative anaerobic bacteria. Moreover, Salmonella are motile bacteria, in a similar way to other human pathogenic bacteria (e.g., Vibrio cholerae, Pseudomonas aeruginosa, and E. coli). Salmonella can produce hydrogen sulfide (H2S) from thiosulfate or sulfite; whereas Shigella species are unable to produce hydrogen sulfide. Typhoid fever, also known as enteric fever, is an infection caused by S. typhi that can spread throughout the body and affect different organs (i.e., it is a multisystemic illness). Vivotif (Typhoid Vaccine Live Oral Ty21a) is a live attenuated bacterial vaccine used for oral administration only; whereas Vi capsular polysaccharide vaccine (ViCPS) is a vaccine administered by injection. Finally, shigellosis is an infection that affects the digestive system caused by Shigella bacteria. In this regard, S. dysenteriae produces a potent cytotoxin known as 'Shiga toxin' that may cause local destruction of the colonic epithelium.
Why does geographic isolation cause speciation?
A. It increases gene flow between populations.
B. It allows two populations to evolve separately.
C. It increases interbreeding between populations.
D. It causes adaptive radiation.
the life cycle of animals
Which of the following parts of a prokaryote is the part of the cell membrane that is folded in and thought to be used
for helping DNA replicate?
A. Mesosome
B. Genophore
C. Peptidoglycan
D. Cell wall
Answer:
a
Explanation:
: an organelle of bacteria that appears as an invagination of the plasma membrane and functions either in DNA replication and cell division or excretion of exoenzymes.
The following part of the cell membrane that is folded in and thought to be used for helping DNA replicate is the mesosome. The correct option is A.
What is mesosome?Mesosome is a round organelle that is present in prokaryotic organisms like bacteria. These organisms present as introversion in the plasma membrane. This organ helps in many functions of the cell like DNA replication and cell division.
DNA replication is a process of replicating DNA in other cells. It happens in the process of cell division. In bacteria cells, mesosomes help in the distribution of DNA into the daughter cells during the division.
Thus, the correct option is A. Mesosome regarding the organelle present in the bacteria helps in DNA replication.
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What kind of claim type does this statement make? Abbey Road is a much better album than Let It Bleed.
Select one:
a.
value
b.
policy
c.
fact
The kind of claim type does this statement is the value claim.
A claim of value refered to something as either good or bad, or that one thing is better than another thing. Example of value: Abbey road album is better than let it bleed.Conclusively we can therefore say that option A is the answer that best fit the statement above.
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Story Aboutt
dorbar you
have withered
Answer:
can u please write the correct name of the story
someone knows the answer would help me
Answer:
I just responded to you so therefore my response to you is the answer.
Explanation:
Have a great Day;)
Green house effect is caused by a) Green plants b) Infra red rays c) UV rays d)X-ray
 what happens when transitioning between photosynthesis and cellular respiration?
to what do you attribute the odors of anaerobic decomposition
Answer:
yessssssjshsbzvsghsha
Bert has blonde hair (b). Molly has brown hair (B), but her genotype is Bb, meaning she carries a recessive blonde allele. What is the likelihood of Bert and Molly's second child having brown hair?
Answer:
50%
Explanation:
Iif you do a punnet square you get Bb, Bb, bb, and bb
since blond is represneted by the recessive bb it's a 50% the child will have blond hair
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Answer:
3iy52oiul3yht
Explanation:
twehnemd
Biomagnification results in higher amounts of toxic substances for organisms on the food chain
True
False
Answer:
Biomagnification results is higher in amount of toxin substances so the answer is true
Explanation:
A tall plant is crossed with a short plant, and the progeny are all intermediate in size between the two parental plants. If the intermediate F1 progeny were allowed to self-pollinate, and the F2 progeny were also intermediate in size, but following a normal distribution, this would suggest
Answer:
A tall plant is crossed with a short plant, and the progeny are all intermediate in size between the two parental plants. If the intermediate F1 progeny were allowed to self-pollinate, and the F2 progeny were also intermediate in size, but following a normal distribution, this would suggest polygenic inheritance.
Explanation:
Two or more genes contribute to the determination of a certain trait in polygenic inheritance.
What is polygenic inheritance?When a tall plant and a short plant are crossed, all the offspring fall between the two parents plants in terms of height.
It would indicate polygenic inheritance if the intermediate F1 progeny were permitted to self-pollinate and the F2 progeny had intermediate sizes and followed a normal distribution.
Consequently, one personality trait is managed through is controlled by at least two other genes, at least two additional genes.
Therefore, If the intermediate F1 progeny were allowed to self-pollinate, and the F2 progeny were also intermediate in size, but following a normal distribution, indicate polygenic inheritance.
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What did each of the bottles represent? What does the water represent?
Answer:
The bottles represent the left and right sides of the heart. The water represents blood that flows through the circulatory system.
Explanation:
Which answer option below describes the best way to increase the accuracy of a
confidence interval calculation?
The accuracy of a confidence interval calculation can be increased from 95% to 99%.
Thus, option C is correct.
What is confidence interval?A confidence interval contain a population parameter in a specified proportion of the time, which can be computed using the given confidence level from a limitless level of individual sample.
The proportion of the range consists of the true value of the factor that will be identical to the confidence level.
In most of the confidence interval examples, the confidence level chosen is 95%. and it can be raise up to 99%.
It cannot estimate the plausible values of the unknown parameter of the population.
Two types of confidence interval observed such as accuracy which is defined based on whether the confidence interval contains the true population parameter or not.
Secondly, the precision defined in terms of the width of a confidence interval.
Hence, option C is correct.
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Which of the following organelles can be found in plants AND animals?
A. Mitochondria
B. Chloroplasts
C. Vacuole
D. Cell wall
Answer:
Mitochondria can be found in plants and animals
From large to small:
RBC, WBC, platelets
RBC, platelets, WBC
WBC, platelets, RBC
WBC, RBC, platelets
Answer:
WBC, RBC, platelets
Explanation:
Took a medical class
how does Fibrocartilage receive it's nutrients?
Answer:
There are no blood vessels in cartilage. As a result, the nourishment of cells inside the cartilage matrix is reliant on nutrients diffused through the matrix from blood capillaries in the perchondrium and/or surrounding tissues.
OAmalOHopeO
In most cases of multiple myeloma, the excess antibodies found in the blood all share an identical protein sequence (thus they have the same structure). Consider such a case where all of the antibodies are identical and think about the cell(s) of origin. How many different B cell clones gave rise to this immune cancer?
Answer: One single B cell clone gave rise to this immune cancer.
Explanation:
The body's cells divide and grow in a completely regulated manner, following an orderly cell cycle that indicates when a cell should die by apoptosis. With this regulation, it is controlled that there are no aging or mutated cells that grow and affect the organism. Cancer is a genetic disease caused by changes in these genes that control how our cells function. These changes, genetic mutations, can occur randomly in the body or can be inherited from parents. When a cell has its functions altered, they begin to grow out of control and in doing so, form masses called tumors that consume the body's resources and energy and crowd out normal cells, preventing them from fulfilling the biological functions necessary for life. Practically, any cell can become a cancer cell and migrate to other areas of the body.
Multiple myeloma is a type of plasma cell cancer. These cells are found in the bone marrow (tissue inside the bones) and are an important component of the immune system, which is made up of several types of cells that work together to fight pathogens and disease. Some cell types are B and T lymphocytes, and myeloid cells such as macrophages, dendritic cells, etc. When B cells respond to an infection with the participation of T cells that present pathogen-derived antigens to them, they mature into plasma cells. Plasma cells produce antibodies that help the body attack and destroy pathogens as well as cancer cells. These antibodies are proteins that bind to antigens that are also proteins found on the surface of the pathogens or cells to be attacked and "mark" them for destruction by other types of immune cells, such as macrophages or neutrophils.
When the plasma cells become cancerous and grow out of control, this is called multiple myeloma, and the mutated plasma cells produce abnormal antibodies. The overgrowth of plasma cells in the bone marrow can crowd out normal blood cell-producing cells, causing low blood cell counts. This can cause anemia which is characterized by a shortage of red blood cells, and thrombocytopenia which means a low level of platelets in the blood causing increased bleeding and bruising. Another condition that can occur is leukopenia (a shortage of normal white blood cells), which can cause problems fighting infections.
Then, the abnormal antibodies produced by the cancerous plasma cells will have the same amino acid sequence and therefore the same structure. Remember that an antibody is a protein, and proteins are a polymer of amino acids. This amino acid sequence is determined by the genes since each gene consists of a sequence of nitrogenous bases and every three bases read by the ribosomal apparatus (the one that synthesizes proteins), an amino acid is synthesized. Therefore, if we consider that cancer originates from a single cell that suffered a mutation in its genes and began to divide in an uncontrolled manner, the daughter cells (which are genetically identical to the mother cell) derived from this mutated cell will have the same genes (in this case, altered because they divide and grow in an uncontrolled and deregulated manner). This tells us that a single mutated B cell gave rise to this cancer.
What will be produced if their DNA molecule is replicated?
Answer:
the dna would be the same.
In transcription, the DNA sequence of a gene is transcribed (copied out) to make an RNA molecule. Transcription is the first step in gene expression. It involves copying a gene's DNA sequence to make an RNA molecule.
Explanation:
What is the answer with explaining
Answer:
EeWw
Explanation:
This question involves two genes; one coding for earlobes and the other for hairline. According to the question, one parent is homzygous recessive for earlobe but homzygous dominant for hairline i.e. (eeWW) while the other parent is homzygous dominant for unattached earlobes but homzygous recessive for hairline i.e. (EEww).
The cross between the two parents is as follows: eeWW × EEww. The following gamete combination will be produced by each parent:
eeWW - eW, eW, eW, eW
EEww - Ew, Ew, Ew, Ew
Using these gametes in a punnet square, the following proportions of offsprings will likely be produced:
All EeWw offsprings
The layer of soil that contains the most organic material is called the
a. A
C C
b. B
d D
Answer:
That layer is called the a horizon, so the answer is A.
Explanation:
8.Explain how is small intestine designed to absorb digested food.
9. Write two differences between the nutrition in amoeba and human beings.
10. Fungus can be harmful and useful. Give an example showing both of these traits of fungus.
Answer:
10. Fungus are useful as they act as decomposers and decompose the dead things. Fungus are harmful as they can decompose fruits, grains and plants etc.
• Describe genetic______ and gene_________ as mechanisms of evolution.
Answer:
genetic is branch of science deal with study of heredity and genes
genes is segment of DNA which transfer parental character from one generation to another
Compared to ocean crust near deep-sea trenches, crust near ocean ridges is ____.
Select one:
a.
younger
b.
the same age
c.
older
d.
magnetically reversed
Answer:
a. younger
Explanation:
HI friends good morning
Which of the following is not typical of a capillary?
Group of answer choices
Virutally all fluids pushed out at a capillary bed are taken up again
The exchange of substances between the blood and interstitial fluid takes place across the thin endothelial walls of the capillaries
Osmosis from blood proteins tend to pull fluid back in
Blood pressure tends to drive fluid out of capillaries
Answer:
its it the first options
Explanation:
I really don't know
Analyze the property of water you investigated and provide some real-world applications of the importance of this property of water. I did Surface Tension. Please Help!
Answer:
Water (H
2O) is a polar inorganic compound that is at room temperature a tasteless and odorless liquid, which is nearly colorless apart from an inherent hint of blue. It is by far the most studied chemical compound[18] and is described as the "universal solvent"[19] and the "solvent of life."[20] It is the most abundant substance on the surface of Earth[21] and the only common substance to exist as a solid, liquid, and gas on Earth's surface.[22] It is also the third most abundant molecule in the universe (behind molecular hydrogen and carbon monoxide).[21]
how does replication ensure each cell has a complete set of DNA
Answer:
During replication a new strand of DNA is synthesized when the other strand is a template to guide the process. Every time the order of the bases in preserved so that DNA can be accurately replicated over and over with identical genetic information.
What was the stimulus in this action?
