where is a pathogen most likely to enter your body ?
Answers
Answer: It is most likely to enter the body through the skin.
Explanation:
Related Questions
Arrange the events in the order that they occur during DNA replication.
Answers
DNA replication is a complex process that occurs during cell division, allowing for the accurate transmission of genetic information from parent cells to daughter cells. Initiation Elongation Termination
Initiation: Replication begins at specific sites on the DNA molecule called origins of replication. Here, a group of proteins called the initiator complex binds to the DNA and separates the two strands, forming a replication bubble.
Elongation: DNA polymerase, the enzyme responsible for adding nucleotides to the growing DNA strand, begins synthesizing a new strand of DNA using the template strand as a guide. The polymerase moves along the template strand in the 3' to 5' direction, adding nucleotides to the new strand in the 5' to 3' direction.
Termination: Replication continues until the polymerase reaches the end of the DNA molecule or encounters an obstacle, such as another polymerase or a damaged DNA strand. At this point, the polymerase detaches from the DNA and replication is complete.
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How is energy related to the change of state represented by the model?
A. Atoms gain energy as a gas changes in a solid.
B. Atoms gain energy as a gas changes in a liquid.
C. Atoms lose energy as a gas changes in a solid.
D. Atoms lose energy as a gas changes in a liquid.
Answers
Answer:
C.
Explanation:
Atoms lose energy as a gas changes in a solid
hope it helps!
all that glitters is not gold
Answers
Answer:
im allergic
Explanation:
Plant hormones serve as chemical messengers between cells and tissues. Auxin is a plant hormone that causes the cells on the shady side of a plant shoot to elongate. The response enabled by auxin is known as —
F geotropism
G transpiration
H phototropism
J photosynthesis
Answers
Plant hormones serve as chemical messengers between cells and tissues. Auxin is a plant hormone that causes the cells on the shady side of a plant shoot to elongate. The response enabled by auxin is known a H. phototropism
Phototropism is a crucial process that enables plants to optimize their exposure to sunlight, which in turn, promotes photosynthesis and overall growth. This is different from geotropism (option F), which is the response of a plant to gravity, transpiration (option G), which is the process of water movement through a plant and its evaporation, and photosynthesis (option J), which is the process by which plants convert light energy into chemical energy to fuel their growth.
Auxin is a plant hormone that plays a vital role in the growth and development of plants. Specifically, auxin causes the cells on the shady side of a plant shoot to elongate, allowing the plant to grow towards the light source. In summary, auxin is a key plant hormone that facilitates phototropism, allowing plants to grow towards light and maximize their exposure for optimal growth.
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Why
volcanoes
form at
divergent
boundaries?
Answers
Answer:
Volcanoes tend to form at divergent boundaries because this is where two tectonic plates are moving apart from each other.
When this happens, magma from the Earth's mantle rises up to fill the gap that is created between the two plates. As the magma continues to rise, it eventually reaches the Earth's surface and forms a volcano.
Intense heat and pressure that is created by the movement of the tectonic plates can also cause the magma to erupt and create a volcanic eruption.
Explanation:
If the product of one gene is masked by another, the hidden gene is said to be ________ to the masking gene
Answers
If the product of one gene is masked by another, the hidden gene is said to be "recessive" to the masking gene.
In genetics, the terms "recessive" and "dominant" are used to describe how different alleles (alternative forms of a gene) interact and determine the expression of a trait. A recessive gene is one that is only expressed, or visible in the phenotype when an individual has two copies of the recessive allele.
If an individual has one copy of the recessive allele and one copy of the dominant allele, the dominant allele will mask the expression of the recessive allele.
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Are plant cells and animal cells exactly the Same? Explain and give examples.
Answers
Answer:
Explanation:
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. ... Beyond size, the main structural differences between plant and animal cells lie in a few additional structures found in plant cells. These structures include: chloroplasts, the cell wall, and vacuoles.
Answer:
They are not.
Explanation:
Yes they are both cells but plant cells have organelles that the animal cells don't have. Such as chloroplast, the cell wall, and the central vacuole.
Imagine that you are a seed. You have been planted on the side of a hill. At the bottom of the hill is a stream. There are many forms of plant life around you which are
competing for sunlight. Write a story about how you are going to grow so that you can get all the sunlight, water, nutrients, and Carbon Dioxide that you will need. In
your story, be sure to include the following terms: geotropism, hydrotropism, and phototropism
The story should be interesting. Eight decent sentences should do
Answers
When a seed is planted in the soil upside down, the stem grows upward and away from the Earth, while the roots develop downward towards the earth. Therefore, if a root is inserted inverted in the soil.
What it will happen if indeed the seeds are placed in the ground?First, seeds develop roots when they are planted. When these roots gain traction, a little plant may begin to form and start breaking through the dirt. This procedure is known as germination in scientific terms.
What is an illustration of a plant moving towards the light?Phototropism. Plants tend to slant towards the light, as you may have seen. This is an illustration of a phototropism, a tropism in which light serves as the stimulus (Figure below). Stems and leaves incline towards the light as a means of obtaining more light for photosynthesis.
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Marine Science
Use the graph to answer the following questions:
1. How many total seconds was the dolphin out of the water?
2. What are the values where f(t)=0f(t)=0 (also known as the x intercepts) and what do they mean in the context of the dolphin jumping?
3. How long did it take the dolphin to move from its lowest point to highest?
Answers
1. The amount of seconds that the dolphin was out of water is of: 14.
2. The x-intercepts represent the times for which the dolphin hit the water.
3. The time it took from the dolphin to move to it's lowest point to it's highest is of around 8 seconds.
How to interpret the graph?The graph is given by the height versus time, hence:
For positive heights, the dolphin was out of water.For negative heights, the dolphin was in the water.This means that the x-intercepts represent the times for which the dolphin hit the water.
Then the intervals in which the dolphin was out of water are of:
0 to 7 seconds.17 to 24 seconds.Hence around 7 + 7 = 14 seconds.
The lowest point and the highest point are given as follows:
Lowest: -50 feet at a time of 12 seconds.Highest: 22 feet at a time of 20 seconds.Hence the time was of:
20 - 12 = 8 seconds.
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What protein function listed here suggests that most enzymes are proteins?
A) provide structural support
B) transport substances inside the cell and between cells
C) communicate signals within the cell and between cells
D) speed up chemical reactions
E) control cell growth
Answers
The protein function listed here which suggests that most enzymes are proteins is that they speed up chemical reactions. That is option D.
Proteins are one of the classes of food that contains nitrogen in addition to carbon, hydrogen and oxygen.
Enzymes are those substances that helps in the breaking down of food substances into simple, soluble and diffusible substances before they can be absorbed into the body. It speeds up chemical reactions in the body by lowering the activation energy.
Enzymes are often referred to as proteins because proteins speeds up biological processes (chemical reactions) which is the same function performed by an enzyme in a living organism.
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The COG of the whole body is relevant for monitoring physiological changes in spaceflight, when fluid shifts and other changes in bone/muscle mass can occur. Hov would you measure the center of mass of a person in microgravity?
Answers
Measuring the center of mass (COM) of a person in microgravity can be challenging since traditional methods used on Earth may not be applicable.
Motion capture systems: Utilizing motion capture technology, markers can be attached to various body segments to track their positions. By analyzing the movement of these markers during specific activities, such as walking or performing exercises, the center of mass can be estimated based on the motion data.Force plate measurements: Force plates can be used to measure the ground reaction forces exerted by a person during different movements. By combining this information with data on the person's body segment masses, moments, and orientations, it is possible to estimate the COM.Inertial measurement units (IMUs): IMUs consist of sensors that can measure acceleration, angular velocity, and orientation. By attaching IMUs to specific body segments, the motion and orientation data can be used to estimate the COM.Imaging techniques: Advanced imaging techniques, such as magnetic resonance imaging (MRI) or computed tomography (CT) scans, can provide detailed information about the distribution of body mass. By analyzing these images, the COM can be estimated.It's important to note that measuring the COM accurately in microgravity poses unique challenges due to the absence of gravitational forces. Researchers and engineers continuously develop and refine techniques to improve the accuracy of COM estimation in such conditions.
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why is genetic variation advantageous to a population?
Answers
Answer:
because genetic fusion is useful for adaptation in the environment
Genetic variation is thought to occur due to mutations, sexual testing, and small population size
Explanation:
Genetic variation is the variation that occurs in an organism, either on the basis of nucleotides, genes or chromosomes
sorry if this answer wrong
Each trait of a plant is determined by
an allele
one gene
a pair of genes
one dominant gene
Answers
Answer:
A pair of genes
Explanation:
Answer:
a pair of genes
Explanation:
Zombie college:The 5 rules of lab safety
Answers
The 5 rules of lab safety are as follows:
Rule 1: Dress for the Lab
Do: wear closed-toe shoes and long pants.Don't: wear jewelry or leave your hair down.Rule 2: Protective Protective Equipment (PPE)
Do: wear safety glasses, gloves, lab coat/apron.Don't: forget to wear them!!Rule 3:
Do: add acid/base to water; follow SDS.Don't: add water to acid/base.Rule 4:
Do: know where it is and how to use it!Don't: forget where it is or play with it!Rule 5:
Do: clean up after yourself.Don't: work alone; bring food or drink in lab.What is lab safety?Lab safety refers to the steps or the protocols and procedure which must be put in place in order to ensure safety in the Laboratory.
Because the laboratory is full of potential hazards, those working in the laboratory should ensure the follow the rules of lab safety.
The 5 rules of lab safety are as follows:
Rule 1: Dress for the Lab
Do: wear closed-toe shoes and long pants.
Don't: wear jewelry or leave your hair down.
Rule 2: Protective Protective Equipment (PPE)
Do: wear safety glasses, gloves, lab coat/apron.
Don't: forget to wear them!!
Rule 3:
Do: add acid/base to water; follow SDS.
Don't: add water to acid/base.
Rule 4:
Do: know where it is and how to use it!
Don't: forget where it is or play with it!
Rule 5: Do and Don't
Do: clean up after yourself.
Don't: work alone; bring food or drink in lab.
In conclusion, the 5 rules of lab safety are meant to protect those working in the laboratory.
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8.
Scientists must be able to do which of the following?
understand other subjects much better than science
Past Due: Wed 07/01
ng in Science
create good hypotheses based on research
Past Due: Wed 07/01
Design
do experiments without background research
ast Due: Thu 07/02
eg Results
test multiple hypotheses in one experiment
st Due: Thu 07/02
Answers
Answer:
i think they must be able to create good hypothesis based on research.
they must be able to create good hypothesis based on research.
Explanation:
ann's family has a history of cystic fibrosis, a recessive genetic disease. in the pedigree, family members who are afflicted with the disease are shown in red. members who are unafflicted may or may not be carriers. which of the given family members can be identified definitively as unafflicted carriers of cystic fibrosis?
Answers
Individuals that express cystic fibrosis are homozygous recessive, while homozygous dominant and heterozygous individuals express the unaffected phenotype. Unafflicted carriers: grandmother, aunt's husband, male cousin 2, female cousin.
What is cystic fibrosis?
Cystic fibrosis is a recessive condition in which affected individuals can not express a normal protein involved in electrolyte secretion and absorption.
So, affected individuals are homozygous recessive and express the mutated protein.
Unaffected individuals are either homozygous dominant or heterozygous carriers.
In the exposed pedigree, we know that,
Red symbols represent affected individuals (homozygous recessive)The remaining ones represent unmutated individuals (homozygous dominant and heterozygous).
We need to tell which individuals among the options are carriers.
Grandmother
Yes, because the grandparents had a normal child and two affected ones. Ann's father and aunt are affected (homozygous recessive). So both grandparents are heterozygous carriers.
Mother
No, because Ann's father is affected, and they had two normal daughters (Ann and her sister). So Ann's mother must be homozygous dominant. She is not a carrier.
Aunt's husband
Yes, because the aunt is homozygous recessive, and they had an affected child (cousin 1), so the Aunt's husband must be heterozygous and carrier.
Cousin 2
Male 1 is affected, he is homozygous recessive
Male 2 is normal, he is a heterozygous carrier
The Female is normal. She is a heterozygous carrier.
Unafflicted carriers: grandmother, aunt's husband, male cousin 2, female cousin.
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Complete question
Ann's family has a history of cystic fibrosis, a recessive genetic disease.
In the pedigree, family members who are afflicted with the disease are shown in red.
Members who are unafflicted may or may not be carriers.
Which of the given family members can be identified definitively as unafflicted carriers of cystic fibrosis?
Options
Female cousinMale cousin 2GrandmotherAunt's husbandMother
Can someone please help me with my online Biology class?
Answers
Answer:
yes I can
Explanation:
In relation to natural gas, where is crude oil generally found?
Crude oil is found above natural gas reservoirs.
Crude oil is found next to natural gas reservoirs.
Crude oil is mixed in with natural gas reservoirs.
Crude oil is found below natural gas reservoirs.
Answers
Answer:
*Crude oil is found below natural gas reservoirs.*
Explanation:
the explanation is because well.. that is where it is found.
Answer:
*Crude oil is found below natural gas reservoirs.*
:)
Where are mhc molecules located on a cell?
Answers
Major Histocompatibility Complex (MHC) molecules are integral membrane proteins that are expressed on the cell membrane of almost all nucleated cells in the body.
They are located on the surface of cells. MHC molecules play a crucial role in the immune system by presenting antigenic peptides to T cells, which are a type of white blood cell involved in immune responses.
There are two main types of MHC molecules: MHC class I and MHC class II.
MHC class I molecules: These are found on the surface of almost all nucleated cells, including cells of various tissues and organs. MHC class I molecules present endogenous antigens, which are peptides derived from proteins synthesized within the cell. They play a vital role in presenting viral or intracellular pathogens to cytotoxic T cells (CD8+ T cells).MHC class II molecules: These are primarily found on antigen-presenting cells (APCs), such as dendritic cells, macrophages, and B cells. MHC class II molecules present exogenous antigens, which are derived from proteins taken up by the cell through phagocytosis or endocytosis. They are responsible for presenting antigens to helper T cells (CD4+ T cells) and initiating immune responses.In summary, MHC molecules, both class I and class II, are located on the cell surface and play a crucial role in immune recognition and response by presenting antigens to T cells. The expression of MHC molecules on cells allows the immune system to distinguish between self and non-self antigens and mount appropriate immune responses.
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A group of students measured a ten-square-meter section of a pond ecosystem and recorded observations. Which statement is a testable hypothesis?
The frogs living in the pond represent a population
Water is an abiotic component in the pond ecosystem
If the fish are given more food, then they will be happier
If the frogs are startled, then they will jump into the water
Answers
If the fish are given more food, then they will be happier
Explanation:
It is a statement that can be tested through observation and experimentation. The other statements are either descriptive statements or statements of fact that are not testable hypotheses. For example, the statement "The frogs living in the pond represent a population" is a statement of fact, not a hypothesis that can be tested.
What is an example of a private club?.
Answers
Yacht clubs, country clubs, and golf clubs all are examples of private clubs.
A private club is a place that is not open to the public. A private members club is an organization that provides social and other amenities to members who typically pay a membership fee for access and use.
Private clubs are places that are not open to the public. Before an individual can join, it must be approved by the rest of the membership. When someone joins, they usually have to pay an initiation fee and a monthly membership fee.
Clubs must be funded primarily by dues, dues, and dues, with a limited amount of income from non-member sources and capital gains.
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when an orginism is repredused by budding, how does the new organism start growing?
Answers
Early on, it appears as part of the parent given that it does not detach until it has grown further. Ultimately, the new individual, which resembles the parent, detaches and becomes an independent organism.
The cytoskeleton holds organelles in place inside the cytoplasm.
a. TRUE
b. FALSE
Answers
The statement is true that the cytoskeleton holds organelles in place inside the cytoplasm.
Cytoskeleton is a complex of interlinked protein filaments. It is responsible for providing the cell a definite shape and it also provides mechanical strength. It also helps the cell in cell division as well as movements. The elements of cytoskeleton are: microtubules, actin filaments, and intermediate filaments.
Organelles are the sub-cellular structures that make essential part of the cell. These are essential for various activities of the cell and make the cell alive and functioning. The examples of organelles are mitochondria, chloroplast, lysosome, golgi apparatus, etc.
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what is the independent and dependent variable? If the temperature of water is higher, then an egg will boil faster.
Answers
Answer:
The dependent variable is the cook time of the egg
Explanation:
an arrangement of all 46 chromosomes is called a?
a. Objective Drawing
B. Non Objective Drawing
C. Karyotype
Answers
Answer:
C, Karyotype
Explanation:
..........
over the past several decades, natural selection has caused populations of staphlococcus aureus (an infectious wound bacterium) to evolve resistance to most antibiotics. if antibiotic use were stopped, what would you predict would happen to these s. aureus populations? group of answer choices
Answers
If antibiotic use were stopped, the populations of S. aureus would likely see a decrease in antibiotic resistance due to natural selection favoring susceptible strains. However, the exact outcome would depend on various factors and could take a considerable amount of time.
If antibiotic use were stopped, it is likely that populations of Staphylococcus aureus (S. aureus) would undergo changes. Without the selective pressure of antibiotics, natural selection would favor traits that do not confer resistance to antibiotics. This means that individuals of S. aureus that are susceptible to antibiotics would have a higher chance of survival and reproduction.
Over time, the frequency of antibiotic-resistant S. aureus strains would decrease, while the susceptible strains would become more prevalent in the population. This is because antibiotic resistance is typically associated with a fitness cost, meaning that resistant bacteria may be less fit in the absence of antibiotics.
However, it's important to note that the process of natural selection is complex, and the outcome could vary depending on various factors such as the specific environment and the presence of other selective pressures. Additionally, the time frame for this change to occur can be lengthy.
In summary, if antibiotic use were stopped, the populations of S. aureus would likely see a decrease in antibiotic resistance due to natural selection favoring susceptible strains. However, the exact outcome would depend on various factors and could take a considerable amount of time.
Over the past several decades, the extensive use of antibiotics has driven the evolution of antibiotic resistance in populations of Staphylococcus aureus (S. aureus). This process is driven by natural selection, where the survival and reproduction of bacteria that possess genes for antibiotic resistance are favored. Consequently, the prevalence of antibiotic-resistant strains has increased significantly.
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What are the 3 main greenhouse gases ?
Answers
Answer:
carbon dioxide
methane
nitrous oxide
Answer:
Carbon Dioxide.
Methane.
Nitrous Oxide
A population stated with 100 individuals. There were 14 births, 20 deaths, and 2 new individuals immigrated into the population. As a percentage, what rate did the population change?
Did the population increase or decrease?
Answers
The rate of population change in the population is -4%
This shows that the population decreased.
What is population?Population is defined as the total number of individuals of the same species found in a given place or habitat.
The population of individual species usually change over time.
The changes that occur in a population of individuals may be as a result of:
new birthsdeathsimmigration of species into the habitatemigration of species of the habitatThe rate of population change is calculated as follows:
Rate of population change = change in population/original population * 100%Initial population = 100
Final population = 100 + (14 + 2 -20)
Final population = 96
Rate of change of population = (96 -100/100) * 100 %
Rate of change of population = -4%
The population decreased.
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Briefly (3-5 sentences) summarize cell division in prokaryotic cells.
Answers
Answer:
Prokaryotic cells have a ring-shaped nucleus, however it is not fully defined, and thanks to this, their DNA is found unlike eukaryotic cells, scattered in the cytoplasm, an example of a prokaryotic cell is a bacterium, which has Oval shaped
uwu
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Now choose one of the resources used for energy production that you have studied in this lesson. Describe how the way humans use or obtain this resource might impact the natural resource you described in part A. If you don't think the natural resource in part A is affected, explain why.
Answers
In general, the way humans use or obtain any resource can have a significant impact on the natural resources.
For example, if the resource is fossil fuels such as coal, oil, and natural gas, the extraction and burning of these resources can lead to pollution of air, water, and soil. It also contributes to climate change and global warming, which can have severe impacts on various natural resources such as oceans, forests, and wildlife.
What is the energy production about?Mining and drilling for fossil fuels can also lead to habitat destruction and fragmentation, which can negatively impact wildlife populations and biodiversity.
The production and transportation of these resources can also lead to spills and leaks, which can harm aquatic wildlife and their habitats.
In conclusion, the way humans use or obtain resources can have a significant impact on the natural resources, and it's important to consider the environmental impact of different energy production methods in order to make more sustainable choices.
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