What are your body's first line of defense? How does your skin work to protect you?

Answers

Answer 1
Skin is a barrier that serves as one of the body's first lines of defense against harmful microbes. Specialized immune cells within skin tissue help to fight invading organisms. Past work by an NIH research team showed that commensals can help the body's immune cells fight disease-causing microbes.
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Answer 2
Skin blood bones hope that helped

Related Questions

how aquatic animals and plants adapt to live in water ​

Answers

What is this supposed to mean?

Describe the relationship between muscles, fascicles, muscle fibers, and myofibrils.

Answers

Skeletal muscle fibers are organized into groups called fascicles. Muscle fibers are composed of myofibrils which are composed of sarcomeres linked in series. The striations of skeletal muscle are created by the organization of actin and myosin filaments resulting in the banding pattern of myofibrils.
Hope this helps :)

Which of the following is NOT a benefit of using fracking?


A. It allows use of formerly trapped resources.

B. It uses fresh water which can become be polluted.

C. It has allowed countries like the US to become more energy independent.

D. It has increased the supply of energy resources.

Answers

B. It uses fresh water which can become polluted is the answer

The difference between community and biome is...
A. Environment is included in Biome

B. Biomes cover a certain square footage

C. Community is only one species

Answers

Answer:

A is the answer to the question

how do genetics define the appearance of an organism?

Answers

Answer: The term “phenotype” refers to the observable physical properties of an organism; these include the organism’s appearance, development, and behavior. An organism’s phenotype is determined by its genotype, which is the set of genes the organism carries, as well as environmental influences upon these genes.

Help... I have number one done I just need to awnseres to 2 and 3

Answers

Answer:
2)first the tou he pushes the food into throat,then the epiglottis folds to cover voice box.the esophagus contracts and moves food toward the stomach
3)nasal/oral cavity to pharynx to trachea to primary bronchi to secondary bronchi to tertiary bronchi to bronchioles to alveoli

3.When Watson and Crick built and proposed the DNA structure, they determined three important features.
What were the three features they proposed? Select all that apply.
Multiple select question.
A) Two outside strands consist of alternating deoxyribose and phosphate.

B) Two outside strands consist of alternating ribose and phosphate.

C) Guanine and cytosine bases pair to each other by two hydrogen bonds.

D) Guanine and cytosine bases pair to each other by three hydrogen bonds.

E) Guanine and adenine bases pair to each other by three hydrogen bonds.

F) Cytosine and thymine bases pair to each other by two hydrogen bonds.

G) Adenine and thymine bases pair to each other by three hydrogen bonds.

H) Adenine and thymine bases pair to each other by two hydrogen bonds.

Answers

A,D,H

The backbone of DNA is deoxyribose and phosphate while RNA is composed of ribose and phosphate. C and G (curvy letters pair together) pair together with 3 hydrogen bonds while A and T pair together with 2 hydrogen bonds.

According to Watson and Crick, DNA replication used each strand's nucleotides as a template for new strands. Thus,option A, D, H is correct.

What is the Watson and Crick model about DNA?

Watson-Crick DNA structure. The molecule of DNA is a double-stranded, helical structure. It consists of two sugar-phosphate backbones on the outside and nitrogenous base pairs on the inside, bound together by hydrogen bonds.

DNA behaves like a double helix made up of two protracted, intertwined helical strands.

In their model, the bases along one DNA strand matched the bases along the other DNA strand. Each DNA strand comprised discrete units known as bases.

Therefore, Watson and Crick built and proposed the DNA structure, which determined important features of DNA.

Learn more about Watson and Crick here:

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PLEASE HELP ME SOLVE THIS I BEG, BE KIND AND THE UNIVERSE WILL REWARD YOU, THE FILE IS BELLOW

Answers

I can’t see it.........

Answer:

Ee = Heterozygous

part 2:

TT = is able to roll tongue

Tt = is able to roll tongue

tt = is NOT able to roll tongue

HH = has mid finger hair

Hh = Has mid finger hair

hh = does not have mid finger hair

CC = has a cleft chin

Cc = has a cleft chin

cc = does not have a cleft chin

Part 3:

Widows peak = TT Tt

No widows peak = tt

No hitchhiker thumb = tt

Hitchhiker thumb = TT Tt

Explanation:

I cant answer the punnet square stuff, but just put the peas genotypes on the top and then the left of the punnet squares (there should only be two genotypes to put)

Which two phrases best describe vascular tissue in plants?
O A. Contain cells that connect to form pipes
B. Cover the outside of plants
O C. Transport water and food
O D. Contain root hair cells and guard cells

Answers

Answer:

These 2 might be the best answers:

A. Contain cells that connect to form pipes

C. Transport water and food

I agree he is correct for the question

What does central dogma refer to?​

Answers

Answer:

The central dogma of molecular biology desrices the flow of genetic information in cells from DNA to messenger RNA to protien.

Explanation:

1. What is a lunar eclipse? *
5 points
a. when the moon is completely dark
b. when the side of the moon that faces the sun is illuminated and the other side is
completely dark
C. when the side of the moon that faces the sun is completely dark and the other side
is illuminated

Answers

Answer:

a lunar eclipse is when the sun and the moon align in the same place in FROUNT of earth

Answer:

An eclipse of the Moon (or lunar eclipse) can only occur at Full Moon, and only if the Moon passes through some portion of Earth's shadow.

Explanation:

begin by making a list of questions that will help you conduct your research

Answers

Answer:

Explanation:

I don't see the equation

Which of the food below are fortified with Vitamin D which helps our body with
calcium absorption:

Dairy products like yogurt and Cheese

Whole grain breads

Healthy canned fruits and vegetables with no additives or sugars

Low fat meats like chicken and fish

Answers

Answer:d

Explanation:

Answer:

Chicken and fish - is the answer

Explanation:

In humans (and other animals) where does glucose come from?

Answers

Answer:

Glucose is a carbohydrate, and is the most important simple sugar in human metabolism. ... Glucose is one of the primary molecules which serve as energy sources for plants and animals. It is found in the sap of plants, and is found in the human bloodstream where it is referred to as "blood sugar"

Explanation:

It mainly comes from foods rich in carbohydrates, like bread, potatoes, and fruit.

Help please
In an experiment, 90 newborn flies are divided evenly into three separate
groups and placed in boxes inside an incubator that is maintained at a
constant temperature of 30°C. On a daily basis, the first group is given water
containing 1 mg/mL of sugar; the second is given water containing 2 mg/mL
of sugar; and the third is given water containing 3 mg/mL of sugar. After four
weeks, the average length of the flies in each group is determined.
Which factor is the independent variable in this experiment?
A. Number of flies in a group
B. Average length of flies in a group
C. Concentration of sugar in the water
D. Temperature of the incubator

Answers

Answer: Average length of flies in a group is the right answer, I did it.

A group of organisms that can reproduce to produce fertile offspring (babies that can reproduce).

A)Biosphere
B)Community
C)Population
D)Ecosystem

Answers

Answer:

Población  

Explanation:

Puesto que no se especifica que individuos realizan la acción podemos deducir que habla de los seres en general, así pues , de todas las definiciones creo que la población es la más acertada.

What are the effects of a set of alleles on an organisms health or appearance?​

Answers

what are the facts of a set of allies on an organism health or appearance

An illustration of an organism and a dichotomous key are given. What is the organism?
1
2
a. More than 6 legs
b. 6 legs or less
a. Has wings
b. No wings
a. Single pair of wings
b. Two pair of wings
a. Wings are nearly equal size
b. Forewings larger than hindwings
Arachnid
Go to step 2
Go to step 3
Ant
Fruit fly
Go to step 4
Dragonfly
Mayfly
اسا
4
Arachnid
Ok

Answers

Answer:

it's a dragon fly right?

ill give brainly pls help

Answers

I think it’s A.) 200, good luck!

what is the function of the human skeleton

Answers

Answer:

The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs

Explanation:

Answer:

1. Support

That's about everything just covered above

2. Protection

They keep organs away from damage, such as the rib cage and the skull.

3. Movement

That's covered above, also.

4. Storage

The bone stores fat and some minerals.

5. Blood cell formation

The bone is the place that most of your blood components are made.

Explanation:

Why are piglets given solid feed six days after birth rather than right after birth?

Answers

Answer:

milk

Explanation:

It is usually because they need milk for the protein and vitamins and other important stuff that they need to survive

which phrase describes a plant spore but not a plant seed

Answers

Answer:

the phase that describes a plant spore but not the plant seed is called meiosis

Answer:

Made of a single cell

. When birds migrate into or out of a defined population and mate with birds from another
population, the existing pool of genes may be altered. Migration can increase or decrease gene
frequencies in populations, resulting in...

A. Greater genetic variation, which may enhance chances of survival

B. Less genetic variation, which will not influence chances of survival at all

C. Selective breeding, which may enhance chances of survival

D. Natural selection, which will not influence chances of survival at all

Answers

A. Greater genetic variation because their are more genes

Even though mutations are relatively rare, they are still a concern in bacteria populations. Why?

Answers

Answer:

Mutations can provide resistance to antibiotics If we were to treat the bacterial population with that specific antibiotic, only the resistant bacteria will be able to multiply; the antibiotic selects for them. These bacteria can now increase in numbers and the end result is a population of mainly resistant bacteria.

Explanation:

Even though mutation is rare in bacteria, it is still important to be concerned about bacteria. The reason is that if any mutation happens that converts the bacteria into antibiotic-resistant bacteria, then this would be harmful.

What is mutation?

Mutation is a phenomenon in which a change is seen in an organism's genome. It may be induced by chemical factors, environmental factors, etc. The mutation may be positive or negative.

In a population, evolution is seen due to mutation. It is one of the factors behind evolution. In bacteria, the mutation happens too. If any sort of mutation happens that makes them antibiotic-resistant, then it would be harmful for humans. Humans take antibiotics that destroy harmful bacteria. If these bacteria mutate their genetic constitution and become resistant, a higher dose of antibiotic will be required next time to destroy such harmful bacteria.

Hence, mutations in bacteria are harmful even though they are rare.

To learn more about the mutation, refer to the following link:

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Proteins are formed in the cytoplasm of cells using genetic instructions from DNA, which is located in the cell’s nucleus. Which of the following best explains how the genetic information gets to the site of protein synthesis?

Answers

Answer:

I dont know

Explanation:

A container holds an element and a compound that are not chemically combined. Is this an element, a mixture or a compound?

Answers

Answer:

Mixture.

Explanation:

Mixture can be defined as a combination of two or more substances which are present in varied proportion and can be visibly seen by with our naked eyes.

In Science, there are two (2) main types of mixture and these are;

I. A homogeneous mixture: it can be defined as any liquid, solid or gaseous mixture which has an identical or uniform composition and properties throughout any given sample of the mixture. In Chemistry, all solutions are considered to be a homogeneous mixture. For example, aqueous hydrogen chloride is a homogeneous mixture of water and hydrogen chloride.

This ultimately implies that, in a homogeneous mixture, the different parts are uniformly (evenly) distributed.

II. A heterogenous mixture: it can be defined as any mixture which has a different or non-uniform composition and properties throughout any given sample of the mixture. This ultimately implies that, the constituents of a heterogenous mixture always remain separate in the sample and as such comprises of two or more phases.

For example, a mixture of sand and coffee is simply a heterogenous mixture and can easily be separated into their various components.

In this scenario, a container holds an element and a compound that are not chemically combined. Thus, this is a mixture.

Which is the best example of a response to an external stimulus?

A. drinking water after a long run
B. avoiding the sun by looking for food at night
C. a hungry bear hunting for food
D. falling asleep in the treetops of a forest

will mark brainiest

Answers

Answer:

B

Explanation:

I'm not 100% sure.... but that one is the only choice I would pick

Answer:

A

Explanation:

The soil around a lilac bush was watered with a solution containing
radioactive phosphorus. Several hours later, radiation was detected in it’s
branches. Through which structures did the radioactive phosphorus read
the branches?
A. stomata

B. guard cells

C. xylem vessels

D. phloem vessels

Answers

C or d. it has something to do with vessels pretty sure

Answer:

I think its D

Explanation:

HELP ME
I NEED THIS FOR NOW
I WILL GIVE YOU BRAINLIEST

Answers

Answer:

1)   As soon as the paper cuts into the cells of your skin, your body springs into action. First, blood cells called platelets join together at the paper cut and form a clot to stop the bleeding.

The process is called Blood clotting.

2)   The cell that are made will have the same same amount of DNA/chromosomes.

3)   Chromosomes come in pairs. Normally, each cell in the human body has 23 pairs of chromosomes (46 total chromosomes). Half come from the mother; the other half come from the father. Two of the chromosomes (the X and the Y chromosome) determine your sex as male or female when you are born.

17. Energy stored in foods is
; digested food
releases
energy for movement and
energy as heat.

Answers

/watch?v=DLzxrzFCyOs

Energy for movement and energy as heat

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A teacher is assessing the correlation between the number of hours spent studying and the average score on a science test. The table shows the data:Number of hours spent studying()00.5 1 1.5 2 2.5 3 3.5 4Seore on science testV)57 62 67 72 77 82 87 99 97Part A: Is there any correlation between the number of hours students spent studying and the score on the science test? Justify your answer PLSSSSS HELPPPPPPPPPPPP THIS WAS SUPPOSED TO BE FORYESTERDAY PLSSSS SOMEONE URGENT!!!!!!!!!!!!!!!plssssssssssssssss Potential Energy: A cat which weighs 10 kg walks up a ladder. The ladder has a height of 15 m. How many joules of gravitationalpotential energy does the cat have? Complete the square and write the equation in Vertex Form:f(x) = x2 ++ 10x + 25 Please help me ASAP! Which sentence contains correct capitalization? A. Sophia spent hours combing the local gift shops to find the perfect item for grandma Iris. B. 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Which would be the best estimate for the value of the computer in2010? Maya has 120 caramel apples to sell. Each caramel apple is covered with one topping. 1/5of the caramel apples are covered with peanuts. 1/3are covered with chocolate chips 3/10 are covered with coconut. The rest are covered with sprinkles. How many caramel apples are covered with sprinkles?A 100B 33C 25D 20 What's the missing value2x+3y=12 hey guys. I am writing an essay with the topic "don't be silent about things that matter" i need a few points, please Auto saved at 08.27.45What is the volume of the triangular prism?35 cm21 cm14 cm28 cmo 8,2332 cmo 4,116 cmo 6,860 cm3 10,290 cm I WILL MARK BRAINLIEST!!! please don't give me wrong answers(50 points)1.) The Renaissance was a movement leading to __________.the end of city-statesthe liberation of slavesthe rebirth of ideas, art, literature, and philosophythe suppression of peasants2.) (Select All That Apply)Who affirmed the new emphasis on human dignity?John LockeJohn Stuart MillNiccolo MachiavelliThomas Hobbes3.) (Select All That Apply)Who believed humans are evil and that the state is obligated to control human desires in order to preserve order?John LockeJohn Stuart MillNiccolo MachiavelliThomas Hobbes4.) Thomas Jefferson rejected all of the ideas John Locke set forth in Two Treatises on Civil Government. He accepted all of the ideas Niccolo Machiavelli set forth in The Prince.TrueFalse5.)When the government responds to citizens inputs on a particular issue, the citizens must stop submitting inputs on the topic. The discussion ends. The citizens must accept the governments outputs as final.TrueFalse6.) (Select All That Apply)Who claimed that the goal of every nation is to acquire as much power as possible, by any means necessary?John LockeJohn Stuart MillNiccolo MachiavelliThomas Hobbes7.) (Select All That Apply)What are the main ideas found in the Declaration of Independence?All humans have equal rights at birth,God has declared all humans equal,The basic human rights that all humans share are life, liberty, and the pursuit of happiness,Human rights are obvious to anyone using reason,If the government takes away citizens human rights, the people may do away with the government.8.)The process that leads to government action begins with an event, problem, or thought in the political environment.TrueFalse9.) (Select All That Apply)Who rejected the new emphasis on human dignity?John LockeJohn Stuart MillNiccolo MachiavelliThomas Hobbes10.)Under which political model are citizens likely to have the greatest voice in government?The rule of the few.The rule of the many.The rule of the one. Lucas is borrowing money to purchase a vehicle. A car dealership will loan Lucas $18,000 with a simple interest rate of 14.5% applied annually, and a 5-year payout plan. The bank will loan Lucas $18,000 with a compound interest rate of 8.9% applied annually and a 4-year payout plan. What is the difference in the total payback amounts? Could you guys do this for me! HELP ME!! Do you think we should build von Neumann Machines if we have the necessary capabilities? What instructions should we give them if we do? in 1800, mass production led to