One way in which organisms maintain homeostasis is by detecting foreign cells and particles like pathogens and cancer cells. once the pathogen is detected and identified, other systems in the organism's body can attack the invader, thus keeping the organism healthier. cells of the human immune system are finely tuned to recognize and respond quickly to disease-causing organisms.
Complete question:
One way in which organisms maintain homeostasis is by detecting foreign cells and particles like pathogens and cancer cells. once the pathogen is detected and identified, other systems in the organism's body can attack the invader, thus keeping the organism healthier. cells of the human immune system are finely tuned to recognize and respond quickly to disease-causing organisms. (Note: you will find model 1 in the attached files)
A pathogen has entered the bloodstream of an individual. Draw the symbol that represents the pathogen.One response of human immune system is endocytosys of the pathogen by a phagocyte (a type of white blood cell). Refer to model 1. Which diagram in the cell mediated response illustration shows this porcess?Draw the symbol that represents phagocytesAnother type of white cell that is involved in the cell mediated response is a helper T-cellDraw the symbol that represents the helper T-cell in model 1Circle the speciealized surface proteins on a helper T-cellAccordign to model 1, are all the helper T-cell the same? Justify your answer with specific evidence from model 1The following statement are labeled for the cell mediated process in model 1--- a piece of pahtogen is presented on the surface of the phagocyte
--- the helper T-cell disperses a chemical signal to activate other immune response systems
--- the helper T-cell binds to the piece of pathogen presented on the phagocyte
--- Pathogen is broken appart by chemicals in the phagocyte
Determine the order of statements by referring to model 1Decide where each statement belongs in the diagram and label model 1 appropriately. More than one statement might match a diagram, and some diagrams may not match any statement.According to model 1, do helper T-cell interact with a free pathogen in the blood?Answer
The pathogen in the model is represented with a star.The first diagram in the model represents the phagocytosis process. And the phagocyte cell is represented by the bigger irregular cell. In model 1, T cells are the perfectly circular-shaped cells with the Th inside. And the surface proteins in the T-cell are those sticks attached to their membranes. If you look at the model carefully, you will see that these proteins are different in each T-cell. The union site with the antigen changes from cell to cell, making each T-cell specific. One cell has squared binding sites, the other one has semicircular binding sites, while the last one has triangular binding sites. Order of statements: Pathogen is broken appart by chemicals in the phagocyte (Diagram 1 - 3th cell) A piece of pahtogen is presented on the surface of the phagocyte (Diagram 1 - 4th cell) The helper T-cell binds to the piece of pathogen presented on the phagocyte (Diagram 3)The helper T-cell disperses a chemical signal to activate other immune response systems (Diagram 4)T-Cells do NOT interact with free pathogens. They interact with the antigens on the phagocyte cells.Explanation:
You will find the complete question, the answer, te explanation and the symbols and representations in the attached files
According to the CDC, is the flu vaccine safe and effective?
Need answer ASAP pls I’ll give brainiest
Answer:
any vaccine effectiveness can vary, recent studies show that flu vaccination reduces the risk of flu illness by between 40% and 60% among the overall population during seasons when most circulating flu viruses are well matched to the flu vaccine.
Explanation:
this is right i had to to a test and a whole lesson over this. ^^^^ that all is from my notes!
Yes, the flu vaccine is safe and effective according to the CDC.
The Centers for Disease Control and Prevention (CDC) recommends annual flu vaccination for everyone aged six months and older, with very few exceptions. The flu vaccine has been extensively studied, and the CDC and other health organizations have found it to be safe and effective in preventing flu infections and reducing the severity of illness for those who do get infected.
The flu vaccine is developed each year to protect against the most prevalent strains of the influenza virus that are expected to circulate during the upcoming flu season. It stimulates the body's immune system to produce antibodies against the virus without causing the flu itself. While the vaccine's effectiveness can vary from season to season due to changes in the circulating flu strains, it still provides significant protection and lowers the risk of severe complications and hospitalization.
As with any medical intervention, there can be some side effects, but they are usually mild and short-lived, such as soreness at the injection site or mild fever. Serious reactions to the flu vaccine are rare. The benefits of getting vaccinated far outweigh the risks, especially for high-risk groups, such as young children, older adults, pregnant women, and individuals with certain medical conditions.
Overall, the CDC and other health authorities strongly recommend flu vaccination as a safe and effective public health measure to protect individuals and communities from the flu and its potential complications. It is an essential part of flu prevention strategies and is encouraged for everyone to help reduce the spread of the virus and its impact on public health.
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5. How do plants prevent self-pollination?
Explanation:
A common way of preventing self- fertilization is to have the pollen shed either before or after the period during ( pollination)
I hope it's helpful for u..this is correct answer......
During sexual reproduction, gametes fuse to form a zygote. Sometimes when gametes are formed
during meiosis, the chromosomes do not completely separate. When a gamete with an extra
chromosome fuses with another gamete to form a zygote, the result is usually a genetic disorder. This
occurrence is an example of which chromosome process?
A. Deletion
B.duplication
C.inversion
D.crossing over
Can you define DKPCOFGS ?? I'm not sure what it is, but it's apart of my biology vocabulary.
Answer:
DKPCOFGS is a mnemonic for: Domain, Kingdom, Phylum, Class, Order, Family, Genus, SpeciesWhat happens to most of the sunlight
energy that reaches the earth?
Answer: In explanation
Explanation:
Once the sun's energy reaches earth, it is intercepted first by the atmosphere. A small part of the sun's energy is directly absorbed, particularly by certain gases such as ozone and water vapor. Some of the sun's energy is reflected back to space by clouds and the earth's surface.
Explanation:
Once the sun's energy reaches earth, it is intercepted first by the atmosphere. A small part of the sun's energy is directly absorbed, particularly by certain gases such as ozone and water vapor.
Tokyo will hold the olmics in 2020.into passive
Answer:
the Olympics in 2020 will be held by Tokyo .
Answer:
Change it to passive: Tokyo will hold the Olympics in 2020. You can't change it because it is an intransitive verb. ... The Olympics are being held in Tokyo en 2020
Explanation:
Trisha measured the
volume of a cube using a
ruler. The length, width and
height all measured 8 cm.
The mass of the cube was
128 9. what is the density of
the cube? help
Answer:
0.25
Explanation:
density = mass / volume
data given :
mass=128 g
volume of a cube = L *L *L (L is length)
=8*8*8
=512 cm³
density = 128/512
=0.25 g/cm³
Trisha measured the volume of a cube using a ruler. The density of the cube is 0.25 g/cm³.
What is density?
The mass per unit volume is known as density. A scalar quantity, density. It is represented by the letter D, and the Greek letter rho is used as the sign for density. Mass divided by volume is how density is computed.
Mass is a physical body's total amount of matter. Mass is defined as the sum of the moles of the material and the compound's molar mass. Volume is the space taken by an object
Given the mass = 128 g
The volume of a cube = L x L x L (L is length)
Putting the value in the formula
8 x 8 x 8 =512 cm³
Density is mass/volume
Putting the value in the formula
density = 128 / 512 = 0.25 g/cm³
Thus, the density of the cube is 0.25 g/cm³.
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which statement best describes a bacteriophage? select all that apply
Answer:
can not answer without the rest of the question
Explanation:
Which organism is an example of a club fungus?
Answer:
Mushroom is an example of club fungus
Explanation:
hope it helps, have a great day!
Explanation:
the division of fungi known as the club fungi, basidiomycota. mushroom, puffballs, and shelf fungi are all members of the group, as are the plants rust and smuts. hope it helps
6. After a man suffered a stroke, he was unable to use his left arm. What happened inside his body during the stroke that led to his losing the ability to use his left arm? A. A blood clot blocked an artery leading into his left arm during the stroke. B. Aging capillaries in his left arm collapsed and shut down during the stroke. C. A surge of blood into his brain rearranged some neuron connections during the stroke. D. Blood flow to a portion of the right side of his brain was cut off during the stroke.
Answer:
I'm pretty sure it's D but don't quote me on that
Blood flow to a portion of the right side of his brain was cut off during the stroke, which leads to him losing the ability to use his left arm. So, the correct option is D.
What do you mean by Stroke?A Stroke may be defined as a complete drubbing of blood flow to any part of the brain, which leads to damage to the brain cells.
Strokes comprehensively prevent the blood supply on a specific part of the brain, heart, etc., and lead to tissue damage in that particular area.
The right side of the brain maintains the blood flow of the left-sided body, while the left side of the brain maintains the blood flow of the right-sided body.
Therefore, blood flow to a portion of the right side of his brain was cut off during the stroke, which leads to him losing the ability to use his left arm. So, the correct option is D.
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Explain the theory of evolution
please
As a consequence those individuals most suited to their environment survive and, given enough time, the species will gradually evolve.
Answer:
Explanation:
evolution is fueled by something called natural sellectoin to explain this lets say a species of birds move to an island where there are more seeds the ones that are able to eat will survive and reproduce and they will reproduce most times they will overproduce so there is a higher chance of surviving and there bodys will slowly change like the mucles will become stronger along with the beak that is baisicly evolution but this does take millions of years this not a few years and they change this is s extremly slow change.
Which structure is responsible for the passage of materials into and out of the cell?
Answer:
A
Explanation:
It is the cell membrane
The plasma membrane is a boundary of cell responsible for the movement of any substance in and out of the cell, hence a is the correct option.
What is a cell membrane?All cells have a cell membrane, also known as a plasma membrane, which divides the inside of the cell from the external environment. The cell membrane controls the flow of substances into and out of the cell.
Watery fluid surrounds and fills cells, this liquid facilitates the movement of substances across the cell membrane as well as within and outside the cell.
Some solutes (solids) can pass through cell membranes depending on their nature.
Therefore cell membrane allows the substance to pass into cell and out of the cell, hence option a is correct.
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5.
Water is important for the _____ of cells.
size, shape, and temperature
temperature, color, and odor
color, odor, and size
shape, temperature, and color
Answer:
Size, shape, temperature
Explanation:
Water creates pressure inside the cell that helps it maintain shape. ... Without water, cell membranes would lack structure, and without proper membrane structure, cells would be unable to keep important molecules inside the cell and harmful molecules outside the cell.
The mendelian principle that states that two homologous chromosomes separate into different gametes during meiosis is known as the law of ---------------
Answer: THE LAW Of jsaksd
Explanation:means to be spearate from most people and htis is consider when people go to jail or do something against the law
what human activities can redistribute carbon loads in the cycle so that global warming might slow down or decrease choose two different real world examples and explain the flux in carbon loads that would result from an increase in that human activity. make sure to explain what biological physical or geological process would shift the carbon load from one point in the cycle to another.
Answer:
Reducing the use of fossil fuels in vehicles.
Explanation:
Reducing the use of fossil fuels in vehicles and use of electric vehicles which reduces air pollution as a result decrease or slow down of global warming occur. Use of fossil fuels is the main reason for increasing carbon concentration in the environment. If more plants were planted around the world the high concentration of carbon decreases in the environment due t photosynthesis of plants. Avoid use of activities that increases the carbon concentration in the environment.
Temperature and moisture are key factors in determining where each of the major terrestrial _______occurs ?
Answer:
Biomes
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Which statement best describes the process of crossing over? (1 point)
A.Homologous chromosomes pair up, and non-sister chromatids exchange genetic material.
B. Pairs of homologous chromatids are divided in half and distributed randomly into new diploid cells.
C.Homologous chromatids pair up, and non-sister chromosomes exchange genetic material.
D.Pairs of homologous chromosomes are divided in half and distributed randomly into new haploid cells.
Which cell replicates via meiosis?
A.sperm cell
B. red blood cell
C. heart cell
D.skin cell
Answer: process in genetics by which the two chromosomes of a homologous pair exchange equal segments with each other
Explanation: sperm cells
CROSSING OVER:
Crossing over is a unique process that occurs only during meiotic division. Crossing over, also called recombination, occurs during prophase I of meiosis. Crossing over is the process by which non-sister chromatids of homologous chromosomes (a pair of similar but non-identical chromosomes from each parent). Crossing over ensures genetic diversity in the gametes (daughter cells) produced from meiosis:MEIOSIS:
Meiosis is the type of cellular division employed by sexual reproducing organisms to create sex cells or gametes. Meiosis produces four genetically different daughter cells called gametes. Sperm cells are gametes produced by male organism while egg cells are gametes produced by female organisms.Learn more: https://brainly.com/question/18824252?referrer=searchResults
1. What happens when soil erodes?
1.minerals and salts float to the top
2. minerals and salts clog streams and rivers
3. minerals and salts release nutrients
4. minerals and salts move across the land or leach downwards
please help
Answer: Minerals and salts clog streams and rivers
Answer: Minerals and salts move across the land or leach downwards
Explanation:
Erosion is the breaking-down of rock or soil and its movement from one place to another. Salt and other minerals can dissolve in water and move across the land. They can also slowly break down in the soil, where they are either utilized by plants or moved by water into the subsoil. When minerals move below the range of a plant’s roots, leaching has occurred.
Reproduction is a process by which an organism produces offspring, or young, and passes on its traits or characteristics. Mitosis is important for asexual reproduction because it gives cells what unique feature?
A. Opportunity for increased genetic variability
B. Decrease in the chance of mutation
C. Ability to reproduce at a faster rate
D. Production of genetically identical daughter cells
Answer:
D i think would be the best answer my studie in this part of health is low
Answer:Production of genetically identical daughter cells (if no errors in replication.
Explanation: mitosis is the process by which the DNA double strand separates and both single strands are replicated to produce two versions of the parent in preparation for cell division.
What ratio of guinea pigs in the offspring would you predict from a Ss x ss cross?
Answer:
75:25
75% S
25% s
Explanation:
The ratio of guinea pigs in the offspring that we would predict from a Ss x ss cross is 1:1.
What is a genetic cross?
The deliberate breeding of two different individuals that results in offspring that carry part of the genetic material of each parent.
In a cross between a heterozygous dominant (Ss) guinea pig and a homozygous recessive (ss) guinea pig, the expected genotypes would be :
Ss (heterozygous dominant) :1ss (homozygous recessive) : 1S, for every guinea pig that is homozygous dominant (Ss) there will be 2 guinea pigs that are homozygous recessive (ss), resulting in the ratio of 1:1. Therefore, both the ratios will be equal. Therefore, the resulting progeny will have both the genotypic and the phenotypic ratios sames.
The punnet square is given below.
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IIIII NEEEEEDDDDD HEEELPPPPPPPOO
Answer:
25% red, 50% pink, 25% white
Select the correct answer.
When do you see a portion of the Moon passing through the Earth's umbra?
O A total lunar eclipse
OB. penumbral lunar eclipse
Ос.
total solar eclipse
OD.
D. partial lunar eclipse
Answer:
Total Lunar eclipse
Explanation:
Because the umbral shadow is the 'core' of the shadow and is only visable during a total lunar eclips.
hope it helps :)
How did God distinguish humans from animals?
À Which of the following is used in making cheese and yogurt?
B bacteria
C molds
D lichens
A algae
Answer:
Bacteria
Explanation:
Bacteria such as Streptococcus thermophilus and Lactobacillus bulgaricus help curdle the milk which makes them into the cheese and yogurt we eat today.
I hope this helps! :)
Darwin observed many finch species on the Galapagos Islands. To explain these observations, he proposed that each species evolved from the same common ancestor, which was a finch species that migrated to the islands from the mainland. What additional evidence did Darwin use to support his explanation?
A. The finch populations were very numerous, and different species often bred with one another.
B. The finch species lived in different habitats on different islands, which isolated them from one another.
C. The finch species were distributed evenly among all of the islands, but did not interbreed.
D. The beaks of the finches were identical, allowing them to eat the same foods on any of the islands.
Answer: B
Explanation:
E. Coli bacteria are prokaryotic, circular, and have a single origin of replication. How many replication bubbles would you expect to form during DNA replication?
a uncertain
b one
c three
d two
one
prokaryotes are known to have one replication bubble that stems from the single origin of replication
eukaryotes have many replication bubbles and many origins of replication
Which of the following is a characteristic of unicellular organisms?
Answer: They have asexual reproduction, so an organism can produce its descendants. They can be eukaryotes or prokaryotes. Their internal part is formed by a liquid different from their external environment that allows the realization of biological processes.
Explanation:
Does each square on a "punnet square" represent 4 offspring or does it represent the odds of one offspring?
Answer:
Explanation:
Punnet square is a square diagram used to predict the genotypes of the offspring of a particular cross or breeding experiment.
It represent 4 offsprings of the cross between two parents. Each punnet contain the alleles in the right combination and proportion.
Punnet square is use to determine the percentages of different genotypes present in the offspring of two parents and to determine missing alleles in a cross.
it can also be used to predict the percentages of phenotypes in the offspring usually from a parents with known genotypes.
Are there any other potential health effects dichloroethene could have besides death? List three different classifications of toxic chemicals and explain what affect they have on the body.
Answer:
The route of exposure can determine whether or not the toxic substance has an effect. Breathing or swallowing lead can result in health effects