Answer: There are genes that code for different cell receptors that detect foreign substances. And for the immune system to fight these superbugs, the genes encoding these receptors must mutate and evolve. Humans have a slow rate of evolution, slower than bacterial evolution. Then not only human genes mutate at a very slow rate, but insect genes mutate very fast and can improve their strategy to evade the immune system.
Explanation:
A mutation is a random change in the nucleotide sequence or in a gene, which produces a variation in its characteristics and which is not necessarily transmitted to the offspring. They occur spontaneously by the action of mutagens, which are physical, chemical or biological agent that changes the genetic information of an organism and thereby increases the frequency of mutations above the natural level. In multicellular organisms, mutations can only be inherited when they affect the reproductive cells, called gametes (egg and sperm) A consequence of mutations can be, for example, a genetic disease, or it can also be a favorable improvement such as being able to fight against a virus. However, even if in the short term mutations could detrimental, they are essential for our long-term existence becuase without mutations there would be no change, and without change life could not evolve.
The immune system is the body's natural defense against infections, such as bacteria and viruses. The body attacks and destroys invading infectious organisms by the coordinated action of cells and proteins. Any substance or compound produced by an organism is a potential antigen when it is recognized as foreign by the immune system of another organism, whether it is of the same or a different species. In addition, the genes code for different cell receptors that detect these foreign substances. And for the immune system to fight these superbugs, the genes encoding these receptors must mutate and evolve. But, humans have a slow rate of evolution, slower than bacterial evolution. Then not only human genes mutate at a very slow rate, but insect genes mutate very fast and can improve their strategy to evade the immune system. Therefore, the human population may not have mutations that improve the immune system to help it fight againts these superbugs.
Help this is due in 30 minutes. Could a person with Type A blood safely receive Type O blood? Explain.
Answer:
No help is received in 30 minutes. A person with A type of Blood safely received type O Blood No.
Explanation:
O blood group people in the world is only few left 100 people in blood group O
What features of mature forest species, such as oak trees, make them able to dominate and compete in the ecosystem
They require a long time to become exceptionally tall interminably. They give an overhang to conceal the others and give natural surroundings to many living with widely varied vegetation.
Notwithstanding trees, each progressive local area harbors numerous other living things, with the best variety populating the peak local area. Comparative biological zonings happen among marine widely varied vegetation, reliant upon such environmental variables as a base organization, accessibility of light, and level of saltiness.
Particular logging is a more environmentally maintainable practice than clear-cutting, which involves eliminating all trees simultaneously. The thought behind particular logging is to keep lopsided or all-matured timberland of trees fluctuating in age as well as in size and species also.
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TRNA is used during ____________in the organelle named ______________to form long ______________________chains of _________ _______ which are then sent on to be folded and formed into ______________.
Answer:
1. Translation
2. Ribosome
3. Peptide
4. Amino acids
5. Proteins
Explanation:
tRNA, known as transfer RNA, is a special type of RNA that functions majorly in the translation process where. tRNA reads the codons in the mRNA molecule using its anticodons and carries corresponding amino acids to the growing peptide chain in the ribosome. The amino acids are later used to form proteins.
Based on the above explanation, the answers to the blank spaces in the question are typed in BOLD:
- tRNA is used during TRANSLATION in the organelle named RIBOSOME to form long PEPTIDE chains of AMINO ACIDS which are then sent on to be folded and formed into PROTEINS.
A high school football player has received a hard direct blow to the abdomen. Which of the following may indicate internal bleeding?
1. Profuse bleeding from the bowels, deep slow breathing, slow pulse
2. Weak rapid pulse, tenderness, guarding, or pain in the abdomen
3. Deep slow breathing, normal pulse, warm dry skin
4. Warm dry skin, rapid pulse, nausea, deep regular breathing
When a high school football player has received a hard direct blow to the abdomen, the thing which indicates internal bleeding is weak rapid pulse, tenderness, guarding or pain in the abdomen.
Thus, the correct answer is 2.
Internаl аbdominаl injuries from blunt trаumа аre serious injuries thаt occur when the body hits or collides with а lаrge object. These types of injuries аre most common in contаct sports like footbаll, ice hockey, soccer, аnd lаcrosse. The most common Internаl аbdominаl injuries include kidney injury, spleen injury, liver injury, аnd аbdominаl injury. Аbdominаl injury cаn result in injury to the pаncreаs, diаphrаgm, stomаch, gаllblаdder, blаdder, or intestines.
Аn internаl аbdominаl injury cаn cаuse rаpid blood loss. Eаrly indicаtions of аbdominаl trаumа include nаuseа, vomiting, blood in the urine, аnd fever. The injury mаy present with аbdominаl pаin, tenderness, distension, or rigidity to the touch, аnd bowel sounds mаy be diminished or аbsent.
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The Lygaeus mode of sex determination is the ________. A. XY/XX scheme B. hermaphroditic scheme C. XX/XO scheme D. scheme based on single translocations in the X chromosome E. XO/YY scheme
The Lygaeus mode of sex determination is the A. XY/XX scheme that is determined by the scheme.
The common mode of sex determination: XX/XY. Although the X chromosome is bigger than the Y chromosome and incorporates over 1300 genes, there have to be the presence of a Y chromosome so as for the male phenotype to be expressed. X chromatin in its inactivated shape is gift as a mass towards the nuclear membrane in girls is referred to as Barr frame because it became first named via way of means of Barr and Bertem (1949). These Barr our bodies are found in 40% of girls who're taken into consideration as chromatin wonderful and absent in men who're taken into consideration as chromatin negative.
Thus, the correct option is A.
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What gene determines fur color?
A co-dominant red gene (O/o) found on the X chromosome determines whether there is a red variation in cat's coat color. This gene encodes pheomelanin. The dominant O allele encodes an orange tone, while the recessive O allele encodes non-orange pigmentation (black or brown).
A cat with a dominant color (black, red, calico, etc.) needs a parent to indicate the dominant color. Her two parents with recessive colors (cream, blue, etc.) cannot produce offspring with dominant colors (black, red, etc.).
Cats inherit half of their genetic makeup from their mothers and half from their fathers. There are 19 chromosomes each, 38 total, the X and Y chromosomes determine sex.
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Can someone help me
how do palientologists classify fossils how does this compare to the way that biologists classify living animals
Scientists may be able to predict which species will become extinct by studying fossils. Fossils can be utilized to reconstruct pedigrees and identify family traits.
Scientists can use fossils to determine the time scale over which traits evolved. Scientists can utilize fossils to learn about the traits of ancient animals. Paleontologists compare the properties of species from different historical eras.
They use this information to try to understand how creatures evolved over millions of years Paleontologists classify fossils using physical characteristics that correspond to the Linnaeus system, and the organism then names the genus and species in Latin. A paleontologist collects as many fossils as possible from a rock or silt.
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Use this sentence: A fault cuts across several layers of rock. Which conclusion can be made?
A. The fault is younger than the layers of rock based on the law of inclusion.
B. The fault is younger than the layers of rock based on the law of crosscutting. C. The fault is older than the layers of rock based on the law of inclusion.
D. The fault is older than the layers of rock based on the law of crosscutting.
Answer:
I think its B
Explanation:
I DK if I'm right bc I'm stuck on the same question
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Answer these questions for $15 *if I delete your answer it’s wrong*
1. Using what you know about protein synthesis l, explain the cause of sickle cell anemia.
2. What evidence supports your explanation?
3. What is the relationship between the structure of the red blood cell and it’s function?
4. How does the shape of the red blood cell affect its function in the case of sickle cell anemia?
Answer:
Due to mutation of the HBB gene.
Explanation:
This causes a change in amino acids which are the building blocks of proteins. Therefore the proteins stick together and form a fiber that changes the shape of the red blood cell making them more fragile.
Evidence that supports my explanation
People with Sickle cell anemia cannot contract malaria since they have low surface area for hemoglobin retention.
Relationship between the structure of the red blood cell and it’s function
It has a biconcave shape with a large surface area to increase space for parking hemoglobin.
How the shape of the red blood cell affect its function in the case of sickle cell anemia
In the case of sickle cell anemia, the shape of the red blood cell becomes sickle like thus reducing the surface area for packing of hemoglobin.
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What are zRGFD the three main driving forces of deforestation?
Answer: Among the detailed categories of proximate causes for all regions, the extension of overland transport infrastructure, followed by commercial wood extraction, permanent cultivation, and cattle ranching, is the leading proximate cause of deforestation.
Image of grassland biome
Answer: here you go
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Answer:
A
Explanation:
Answer: the first one.
Explanation:
It's generally long lived and harmful to living things.
Hope I helped
A plant is an example of a heterotroph.
Explanation:
A heterotroph is an organism that eats other plants or animals for energy and nutrients. The term stems from the Greek words hetero for “other” and trophe for “nourishment.” ... Examples include plants, algae, and some types of bacteria. Heterotrophs are known as consumers because they consume producers or other consumers.
Answer:
true
Explanation:
How do the respiratory and circulatory systems work together essay?
To supply oxygen and remove carbon dioxide, the circulatory and respiratory system works together.
The respiratory system is what aids in breathing in oxygen and breathing out carbon dioxide. The circulatory system is the system that assists in supplying tissues with oxygen from the lungs and in removing carbon dioxide from the tissues by way of the lungs. In this way, both of these processes assist in the supply of oxygen and the removal of carbon dioxide as waste.
The blood that carries waste (CO₂) from the tissue via the heart will first carry the oxygen inhaled to the lungs, where it will be exchanged with the blood. The oxygen will then be sent to the heart, where it will be used to pump oxygen-rich blood to the tissues. Additionally, blood that has lost oxygen will transport waste from the tissue.
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solar energy is increasingly being used to replace fossil fuels to generate electricity.
describe the disadvantages of continuing to use fossil fuels to generate electricity
Answer:
Fossil fuels pollute the environment. Fossil fuels are non-renewable and unsustainable.
Answer:
disadvantages of fossil fuels to generate electricity
1. Fossil fuels are not renewable energy sources
2. Fossil fuels pollute the environment
3. In the case of irresponsible use, they can be dangerous
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What molecule provides the energy needed for
movement from low to high concentration?
Answer:
During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP).
Explanation:
What is a contrast to natural selection?
Artificial selection is a contrast to natural selection.
Natural selection is the process by which populations of organisms adapt and change. Individuals within a population are inherently variable. In other words, all individuals are different in some way. This variation means that some individuals have traits that adapt better to their environment than others.
Natural selection is the selection process that occurs as a result of an organism's ability to adapt to its environment. Artificial selection, on the other hand, is selective breeding imposed by an external entity, usually a human, to increase the abundance of desirable traits.
Examples of natural selection include : Selection of long-necked giraffes.
Examples of artificial selection include : Breeding different breeds of dogs and cows to produce the desired breed.
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State one way the two molecules could differ that would explain the difference in their ability to pass through the artificial plant cell membrane.
The two molecules could differ which would explain the difference in their ability to pass through the artificial plant cell membrane because molecule A is smaller than molecule B.
There аre multiple fаcts thаt cаn justify thаt two molecules show the difference in their аbility to pаss through а membrаne:
Size аnd moleculаr weight Receptors on the membrаne аnd the moleculesStructure of the membrаneMembrаne аffinityDifferent molecules hаve different solubility depending upon the type of molecule аnd membrаne. So, the two molecules could differ which would explain the difference in their ability to pass through the artificial plant cell membrane because of the size of the molecules.
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Answer:They can take less baths or do the dishes by hand easy ways to reduce water usage
Explanation:
Some objects are visible because they reflect light. Which of the following is visible because light reflects off of it?
a
b
a campfire
the Sun
a light bulb
the wall
d
Answer:
d) the wall
Explanation:
a,b, and c are sources of light and the wall is a object
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Answer:
4x10^-5
Explanation:
divide 80 by 2 million
The illustration shows Galápagos tortoises from Albemarle and Abingdon islands. The variations in the features of the tortoise populations on Albemarle and Abingdon islands are examples of __________.
A. adaptations
B. vestigial structures
C. analogous structures
D. molecular similarities
Answer:
A
Explanation:
What are the similarities and differences between artificial and natural selection?
Natural selection is influenced by environmental factors that limit survival and reproduction, such as hard habitats or mate competition. Selective breeding is referred to as "artificial selection."
Breeding is a natural process of mating between two species, but selective breeding is an artificial process where people intervene and choose specific organisms to mate.
There are three differences between natural selection and selective breeding:
Artificial selection is influenced by human intervention. Natural selection is governed by the selective pressure of the environment.Artificial selection is the responsibility of breeders. Natural selection has considerably expanded biological variety on Earth.Artificial selection, on the other hand, makes it simpler for the breeder to pass on desired features.Learn more about natural selection Visit: brainly.com/question/23929271
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Raised and broken sections of sidewalk along tree-lined streets is an example of _______________ weathering
Answer:
chemical
Explanation:
Answer:
biological
Explanation:
Please answer I really need help
Answer:
Carbohydrates - monosaccharides
Proteins - amino acids
Nucleic acids - nucleotides
Lipids - fatty acids (hydrocarbon chains)
Explanation:
There are four major biological molecules called biomolecules in nature namely; carbohydrates, proteins, nucleic acids and lipids. These four molecules form the bedrock upon which life is built. The biomolecules mentioned above are POLYMERS formed as a result of the combination of two or more simpler molecules called MONOMERS in a process called CONDENSATION.
The monomer of each polymeric biomolecule is as follows;
Carbohydrates - monosaccharides
Proteins - amino acids
Nucleic acids - nucleotides
Lipids - fatty acids (hydrocarbon chains)
What is the specific heat of aluminum if the temperature of a 28.4 g sample of aluminum is increased by 8.1oC when 207 J of heat is added? 0.900 Jg℃
Answer:
0.900 Jg^-1℃^-1
Explanation:
Given that;
H = mcθ
H = heat added
m = mass of aluminium
c = specific heat of aluminum
θ = increase in temperature
Making c the subject of the formula;
c = H/mθ
c = 207 J/28.4 g * 8.1oC
c = 0.900 Jg^-1℃^-1
E) Un nucleótido se forma por la unión de una base ___________________, un azúcar llamada __________________________ y un grupo _______________
Answer:
Un nucleótido se forma por la unión de una base ___nitrogenada___, un azúcar llamada _____ribosa (en ARN) y desoxirribosa (en ADN)____ y un grupo __fosfato__.
Explanation:
La información genética utilizada durante la sintesis proteica es almacenada en secuencias cortas de tres nucleotidos llamadas codones de mARN. Cada codon representa uno de los 20 amino ácidos utilizados para construir las proteinas.
Los nucleóticos son subunidades o monómeros compuestos por una molécula de azucar llamada ribosa (ARN) o desoxirribosa ADN), la que se encuentra unida a un grupo fosfato y a una base nitrogenada. La secuencia de nucleóticos en cadena se denomina polímero (compuesto por mas de dos monómeros). Diferentes nucleotidos unidos por sus extremos componen las cadenas de ADN y ARN.
Las bases nitrogenadas que se utilizan para la sintesis de ADN y ARN pueden ser agrupadas en purinas o pirimidinas.
ADN → Formado por bases → Adenina y Guanina → Purinas
→ Timina y Citosina → Pirimidinas
Adenina siempre se empareja con Timina, mientras que Guanina se empareja con Citosina.
ARN → Formado por bases → Adenina y Guanina → Purinas
→ Uracilo y Citosina → Pirimidinas
Adenina siempre se empareja con Uracilo, mientras que Guanina se empareja con Citosina.
Help me please!
Where does a plant store glucose to make it through the winter?
Answer:
glucose (energy) from the sun they store some of it as a starch. I hope this helps you!
Explanation:
What does a plant life cycle start with?
its a plant dawg think smarter not harder ✊