What are the three categories of the 2nd line of defence in the immune system?

Answers

Answer 1

Answer:The immune system's three lines of defense include physical and chemical barriers, non-specific innate responses, and specific adaptive responses.

Explanation:


Related Questions

7. For the following scenario provide a hypothesis, the dependent variable, independent variable, standardized variables, and control group.
Scenario: You want to determine whether plants communicate with their neighbors in response to stress, so you design an experiment. You have two groups of plants, one that will be exposed to a stressor and another that will not. You apply the stress 3 times a day for 10 days. At day 1 you measure the amount of stress hormone in the plants and then again you measure the amount of stress hormone on day 10.​

Answers

Here, the hypothesis is "plants communicate with their neighbors in response to stress", dependent variable is the amount of the stress hormone in the plants, and the independent variable is the exposure to stress (applied 3 times a day for 10 days), standardized variables are plants used, duration of the stressor, amount of stress hormone. The control group is the plant that is not exposed to stressor.

What is the significance of the control group?

Here, the control group is the group of plants that are not exposed to stress, and the control groups plants are experimented or tested with the other plants to get the result of the stress hormone on the plants.

Hence, here, the hypothesis is "plants communicate with their neighbors in response to stress", dependent variable is the amount of the stress hormone in the plants, and the independent variable is the exposure to stress (applied 3 times a day for 10 days), standardized variables are plants used, duration of the stressor, amount of stress hormone. The control group is the plant that is not exposed to stressor.

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Plz help fast fast -I need it now

The light absorbing pigment found in Chloroplasts that is responsible for capturing solar
energy from the sun.

A-Acetyl COA
B-chlorophyll
C-ATP
D-NADH

Answers

Chlorophyll

Hope this helped you- have a good day bro cya)

The universal blood donor is A) O+, B) A+, or C) AB-

Answers

O+

because lack antigen A,B, and AB

In what way is a decomposing log in a forest a microhabitat?
A
B
C
D
It supports a distinct population of organisms, but the forest houses the log its
It provides camouflage for particular organisms to protect them from predators
It decomposes into organic matter that enriches the soil.
It is a large community of organisms that occupy a major habitat.

Answers

A microhabitat is an area within a larger habitat that is smaller in size, has certain environmental characteristics, and supports a particular population of species.

What is a microhabitat, exactly?

An organism lives in a considerably smaller environment known as a microhabitat. Microhabitats are typically used to describe the environments in which tiny animals, such as worms or beetles, reside.

What does a microhabitat for an organism consist of?

A small area that differs in some manner from the habitat around it is called a microhabitat. It's possible for unique species to live there that are absent from the surrounding area. Unfortunately, a number of habitats are in jeopardy because of weather extremes, pollution, or deforestation.

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Golgi apparatus is involved in processing of:
a. Salivary amylase
b. Glucokinase
c. Phenylalanine hydroxylase
d. EcoR1

Answers

Answer:

Explanation:

the Golgi apparatus is involved in the processing of :

salivary amylase

this is because the GC is involved in the secretion of proteins and salivary amylase is protein secreted from the salivary glands

Which of the following was proposed by Charles Darwin?
A.endosymbiosis hypothesis
B.biogenesis
C.natural selection
D.experimentation

Answers

Answer:

Charles Darwin proposed the theory of natural selection.

Eye color , hair color , and skin color often vary from person to person and even witch in family , one explanation is that

Answers

Answer:

Explanation:

The color of our hair, skin, and eyes is determined by the same thing: the amount of pigment they have. The pigment that causes dark hair, skin, and eyes is called melanin. Melanin is made in special cells in the body called melanocytes.

25 Which layer of soil holds the water trees use? ​

Answers

The answer is clay, if you look it up it will tell you!

helppp please i honestly don’t know

helppp please i honestly dont know

Answers

Answer:

hi

Explanation:

Which of the following is a true statement?
A. Sister chromatids are held together by condensins.
B. Ligation and hydrogenation are the most common ways cells regulate the activity of a protein.
C. The first readily visible sign that a cell is about to enter the S phase is ubiquitylation of chromosomes.
D. In a typical somatic cell, interphase is the longest phase of the cell cycle.
E. The cell-cycle control system depends on cyclically activated carrier GTP molecules.

Answers

Answer:

e the reason why because it's right

List and describe 5 ways in which sexuality affects an individual daily life?

Answers

Answer:

age gender, marital status, race, disability and sexual transmitted infections

Explanation:

1. Menstruation is a sign that a girl is
a. already pregnant.
b. capable of producing offspring.
c. no longer capable of becoming pregnant.
d. already menopausal.
2. How will you describe menstruation?
a. It is the discharge of blood from the uterine wall.
b. It is the discharge of blood from the ovary.
c. It is the discharge of blood from the fallopian tube.
d. It is the discharge of blood from the vagina.
3. When will there be menstruation?
a, when the egg meets the sperm.
b. when the egg reaches the uterus.
c. when the egg is released from the ovary.
d. when the egg is not fertilized by a sperm.
4. During the menstrual cycle, an egg may be released. This process is
alled
a. Fertilization
b. Ovulation
C. Dilation
d. Gestation

Answers

1) B
2) A
3) B
4) B
................
B A B B, what is the question

How many valence electrons does this atom have

Answers

Answer:

They have 3

Explanation:

hope this helps! :)

Answer:

An atom has three valence electrons.

Explanation:

what is an anticodon

Answers

Like a codon, an anticodon is made up of 3 nucleotides that in turn code for an amino acid/codon. An anticodon is the compliment to a codon: if a codon was AUG the anticodon would be UAC. A codon is also made up of mRNA while an anticodon is composed of tRNA.

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If I’m running a marathon characteristics of life would I need to survive

If Im running a marathon characteristics of life would I need to survive

Answers

Speed, strength, endurance, fatigue resistance – each matters significantly in determining how fast or far you run and how closely you come to achieving your goals in a race. ...
Along with smart training methods, intuition is the best tool a runner can have for preventing injury.

the images represent ecosystems in the eastern united states. rank the ecosystems by their ability to remove and store carbon, from greatest to least.

Answers

The mangrove forest which holds the most Carbon dioxide followed by forest shown by second image and at last the vegetation on farms holds and releases the least amount of Carbon dioxide.

Carbon is transferred through one storage reservoir to another through a range of mechanisms. Plants, for example, transfer carbon dioxide from the atmosphere into the biome via photosynthesis in the food chain. They use solar energy to chemically incorporate carbon dioxide, hydrogen, and oxygen from water to form sugar molecules. Animals that consume plants metabolize the sugar molecules to obtain energy. Respiration, excretion, and decomposition all return carbon to the atmosphere or soil, thus completing the cycle.

Erosion, for example, releases carbon into the atmosphere slowly, whereas volcanic activity releases it quickly. Another way to quickly release carbon into the atmosphere is to burn fossil fuels in automobiles or power plants.

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multicellular organisms are composed of a variety of living structures that are formed when cells differentiate. how could the living structure pictured below be classified?

Answers

The smallest unit in biology that is capable of independent living and that comprises all living things as well as the body's tissues is cell.

Membrane, nucleus, cytoplasm - cell's basic structural parts. The membrane, which encloses the cell, regulates the molecules that enter and exit the cell. After examining a piece of cork under a very early microscope, Robert Hooke proposed the name "cell" in 1665, derived from the Latin cella, which means "storeroom or chamber." Furthermore, it is reported that he compared the rectangular spaces to some monastic cells.

The complete question is:

Multicellular organisms are composed of a variety of living structures that are formed when cells differentiate. How could the living structure pictured below be classified?

A.cell

B.organ

C.organ system

D.tissue

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A family is relocating from St. Louis, Missouri, to California. Due to an increasing inventory of houses in St. Louis, it is taking longer than before to sell a house. The wife is concerned and wants to know when it is optimal to put their house on the market. Her realtor friend informs them that the last 21 houses that sold in their neighborhood took an average time of 60 days to sell. The realtor also tells them that based on her prior experience, the population standard deviation is 14 days.
What assumption regarding the population is necessary for making an interval estimate for the population mean?

Answers

Answer:

The assumption regarding the population which is necessary for making an interval estimate for the population mean is that:

a. We assume that the population has a normal distribution.

b. We assume that the central limit theorem applies.

Explanation:

The assumption regarding the population which is necessary for making an interval estimate for the population mean is that:

a. We assume that the population has a normal distribution.

b. We assume that the central limit theorem applies.

A normal distribution describes how the values of a variable are distributed. It is a probability distribution that is symmetrical about the central value or the mean, i.e. 50% of data are found to the left and right of the mean respectively. Most of the data are clustered around the mean, i.e. they occur or are found near the mean than far away from the mean. The graph form of a normal distribution will appear as a bell curve. In a normal distribution, mean = mode = median.

The Central Limit Theorem states that irrespective of the underlying distribution of a sample, when a variable does not follow a normal distribution, repeated random samples from the population will give sample means they are normally distributed. This means that the sampling distribution of the sample means approaches a normal distribution as the sample size gets larger.

Which of the following nutrient provide more energy? a. Protein b. Carbohydrate c. Lipids d. Vitamins​

Answers

The nutrient which provide more energy is C. Lipids

Among the given options, lipids provide the most energy per unit mass. Lipids, also known as fats, are a concentrated source of energy in the diet. When metabolized, lipids yield approximately 9 kilocalories (kcal) of energy per gram.

Carbohydrates, including sugars and starches, provide approximately 4 kcal of energy per gram. They are a readily available source of energy for the body, particularly for short-term energy needs. Proteins also provide approximately 4 kcal of energy per gram. However, their primary role is not as an energy source but rather as the building blocks for tissues, enzymes, and other important molecules in the body.

Vitamins, on the other hand, do not provide significant energy. They are essential for various biochemical processes in the body but do not contribute directly to energy production.

It is important to note that while lipids provide the most energy per gram, the overall balance and variety of nutrients in a diet are crucial for maintaining optimal health. Nutrient needs vary based on individual factors, such as age, sex, activity level, and overall health goals. Therefore, Option C is correct.

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What event accompanies energy absorption by chlorophyll (or other pigment molecules) of the photosystems

Answers

Answer:

an electron is exited

Explanation:

as the electrons are released into the system of electron carriers involved with photosystem two, they lose their energy

Which of following is a pharmacokinetic/pharmacodynamic characteristic of monoclonal antibodies (mAbs)?
A.The large size of mAbs typically hinders their distribution into tissue resulting in a small volume of distribution
B. mAbs are typically associated with clinically significant CYP-mediated drug-drug interactions
C. Most mAbs are renally excreted as intact molecules
D.Most mAbs are well absorbed when given via oral administration

Answers

The one that is pharmacokinetic or pharmacodynamic characteristic of monoclonal antibodies is option A which says that the large size of mAbs typically hinders their distribution into tissue resulting in a small volume of distribution.

Monoclonal antibody is an antibody that is produced from a cell lineage made by cloning a unique white blood cell. In short, all subsequent antibody that is produced this way can be traced back to one unique parent cell.

Monoclonal antibodies are dispensed by discharge or catabolism. Their size is huge, which means they can't be separated by the kidneys. However, their large size also means that they are difficult to distribute into tissue, which results in a smaller distribution volume.

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Which of following is a pharmacokinetic/pharmacodynamic characteristic of monoclonal antibodies (mAbs)?A.The

Explain what TWO forces cause Earth’s water to bulge?

Answers

Answer:

Gravity and inertia act in opposition on the Earth's oceans, creating tidal bulges on opposite sites of the planet. On the “near” side of the Earth (the side facing the moon), the gravitational force of the moon pulls the ocean's waters toward it, creating one bulge.

If the entire universe was shrunk down to the size of Earth, how big would our galaxy be?
A. The size of a car.
B. The size of a city block.
C. The size of an apple.
D. The size of a piece of dust.

Answers

Answer:

D. The size of a piece of dust.

Which of the following is NOT part of the Cell Theory?
1') cells are the basic unit of structure and function of all living things
2) all cells are produced by other cells
3) all cells are identical in their structure and function
4) all living things are made of cells

Answers

Answer:

3 it is 3 3333333333333

Following binomial nomenclature, which of the following makes up the scientific name of an organism? The genus name and then the species name

Answers

Answer:

The scientific name of an organism is made up of the genus name and then the species name, following the binomial nomenclature system. The genus name is written first and is capitalized, while the species name is written second and is not capitalized.

20 characters is all you need brainly so here you go.

20 characters is all you need brainly so here you go.
20 characters is all you need brainly so here you go.

Answers

The SURFACE AREA is exactly what it sounds like: it’s the sum of the area of all of the surfaces on the cube. To find the area of a square is one side length^2, and to find the surface area of a cube is the area of one of the faces multiplied by 6. So the surface area for a 2 cm cube is 24 cm^2, a 1 cm cube is 6 cm^2, and a 0.5 cm cube is 1.5 cm^2.

The volume of a cube is one side length cubed. Thats it. So a cube with a side length of 2 cm has a volume of 8 cm^3, a 1 cm side length cube has a volume of 1 cm^3, and a 0.5 cm side length cube has a volume of 0.125 cm^3.

You can find the ratios by just dividing all of these (surface area/volume)
For the 2cm side length cube it would be 24/8 or 1:3
For the 1cm side length cube it would be 6:1
For the 0.5 cm side length cube it would be 1.5/0.125 or 12:1


the hepatic portal vein normally contains relatively high levels of which of these? (Select all that apply)
glucose
Oxygen
gycogen
amino acids​

Answers

Answer:

Glucose

Glycogen

Explanation:

Which evidence exists that endosymbiosis actually occurred? A. presence of RNA and DNAB. Plasma membrane found with cell wallC. The presence of a nucleolusD. Double membraned chloroplast

Answers

One evidence that endosymbiosis actually occured is the double membraned chloroplast.

One represents the membrane of the original prokaryotic organisms, and the outer membrane represents the vacuole of phagocytosis.

explain why roots need to use to different methods to absorb water and ions

Answers

Answer:

m kemc

Explanation:

kmdefe

Roots need to use different methods to absorb the water and ions so it won’t die

You earn $17.50/hr and work 40 hr/wk. Your deductions are FICA (7.65%), federal tax withholding (12.3%), and state tax withholding (6.2%). Your housing and fixed expenses are 30% of your realized income per month. You want to save 5 months' worth in an emergency fund within a year. How much do you need to save per month to fund the emergency fund?

Answers

Answer:

So, you need to save approximately $258.60 per month to fund your emergency fund within a year based on the given information.

Explanation:

Let's break down the steps to calculate the amount you need to save per month to fund the emergency fund:

Step 1: Calculate your total deductions

Your deductions include FICA (7.65%), federal tax withholding (12.3%), and state tax withholding (6.2%). To calculate the total deductions, we add these percentages:

Total deductions = FICA + federal tax withholding + state tax withholding

Total deductions = 7.65% + 12.3% + 6.2%

Total deductions = 26.15%

Step 2: Calculate your net income per hour

Your net income per hour is the hourly rate minus the total deductions:

Net income per hour = Hourly rate - Total deductions

Net income per hour = $17.50/hr - 26.15%

Net income per hour = $17.50/hr - $4.57/hr

Net income per hour = $12.93/hr

Step 3: Calculate your monthly realized income

Your monthly realized income is the net income per hour multiplied by the number of hours you work per week and the number of weeks in a month:

Monthly realized income = Net income per hour x Number of hours per week x Number of weeks per month

Monthly realized income = $12.93/hr x 40 hr/wk x 4 wk/month

Monthly realized income = $2,068.80/month

Step 4: Calculate your housing and fixed expenses

Your housing and fixed expenses are 30% of your realized income per month:

Housing and fixed expenses = 30% x Monthly realized income

Housing and fixed expenses = 30% x $2,068.80

Housing and fixed expenses = $620.64/month

Step 5: Calculate the total amount needed for the emergency fund

You want to save 5 months' worth of expenses in an emergency fund within a year. So, the total amount needed for the emergency fund is:

Total amount needed for emergency fund = 5 x Housing and fixed expenses

Total amount needed for emergency fund = 5 x $620.64

Total amount needed for emergency fund = $3,103.20

Step 6: Calculate the amount to save per month

To calculate the amount you need to save per month to fund the emergency fund, divide the total amount needed by the number of months in a year:

Amount to save per month = Total amount needed for emergency fund / Number of months in a year

Amount to save per month = $3,103.20 / 12

Amount to save per month ≈ $258.60

So, you need to save approximately $258.60 per month to fund your emergency fund within a year based on the given information.

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Hey! I need someone to help me with this. 1)Expression: (a-5)2Simplified: ?2)Expression: a-9 x a17a7Simplified: ?3)Expression: a-4a-7Simplified: ?4)Expression: (a3)-2 x a2a3Simplified: ?5)Expression: a22(a3)8Simplified: ?6)Expression: a0x (a2)6Simplified: ?7)Expression: (a5)3Simplified: ?8)Expression: a-4x a15Simplified: ? For a bond selling for $714, with a par value of $1,000 and a coupon rate of 11.10 percent, the current yield is Round the answer to two decimal places in percentage form. (Write the percentage sign in the "units" box) Your Answer: units Answer How do you know if decay has reached the pulp? Can someone help me with this I am confused Which of the following protocols or mechanisms is used to provide security on a wireless network? (Select three.)1) IPsec2) RDP3) 802.1x4) WPA How did enslaved people played a role in freeing themselves which equation is represented by the graph below a. y=1/8ex b.y=1/2ex c.y=2ex. d.y=8ex Which of the following statements is incorrect for the reaction of 1,3- butadiene with a substituted alkene CH2=CHX when X is a nitro group? Perform MULTIPLE TURNING CYCLE operation on a given specimen byusing CNC Turning Center and write G-Codes for the same What are some ways that the government of the Roman Republic checked and balanced power? 5 Seth bought a used car that had been driven 20,000miles. After he owned the car for 2 years, the totalmileage of the car was 49,400. Find the averagenumber of miles he drove each month during those2 years. Ronald Reagan was the President during which event?A)Vietnam WarB)the Cold WarC)World War IID)the Great Depression Fran is decorating her bedroom.She is going to put a border all around the bedroom.This diagram shows a plan of the bedroom.6 m5m2 m5m3 m5 mBorder rolls are sold in 4 m lengths.Work out the number of border rolls Fran will need to buy.Diagram NOTaccurately drawn denormalizaoin is a process for converting complet data structurs into simple stable data cosA.cosB-sin. is same aso Sin * (A + B) b. Sin * (A - B) d. Cos * (A - B) c. Cos * (A + B) 1. Was Poe involved in the SpanishInquisition? Which of the following transition metal complexes is paramagnetic?[Zn(NH3)4]2+Ni(CO)4[Fe(H2O)6]3+ (high spin)[Os(NH3)6]2+ (low spin) BDC is a right angle.BCDEWhich term describes BD?perpendicular bisectorangle bisectormedianaltitudeSubmit What is the parallel slope of this equation? f(x) = 5/8x - 4* Jackson buys a grape snow cone on a hot day. By the time he eats all the "snow" off the top, the paper cone is filled with 27 pi cm^3 cubed of melted purple liquid. The radius of the cone is 3 cm.What is the height of the cone?Either enter an exact answer in terms of pi or use 3.14 for pi.