The first line of defense involves which structure(s)?
OT-cells
O skin
O blood
OB-cells

Answers

Answer 1

Answer:

skin

Explanation:

The skin is vital for our general health and well-being. In addition to acting as the body's first line of defense against bacteria and viruses, healthy skin also maintains fluid balance and helps regulate body temperature. She is very sensitive, she recognizes the slightest touch as well as pain.

As an outer layer that we can see and touch, the epidermis protects us from toxins, bacteria, and fluid loss. It consists of 5 sublayers of keratinocyte cells. These cells, produced in the deepest inner, basal layer, migrate to the surface of the skin. As they do so, they mature and go through a series of changes.


Related Questions

How are traces of ancient phytoplankton used to determine cooler and warmer water temperatures?

A. Chemical traces of phytoplankton that remain after millions of years are analyzed for data indicating water temperatures.
B. Climatologists analyze how much photosynthesis occurred after millions of years as an indicator of warmer water.
C. Large numbers of phytoplankton in fossil records after millions of years indicate warmer waters.
D. Fossil records indicate different species of phytoplankton prefer warm water to those that prefer colder water.

Answers

Answer:

c

Explanation:

i think

Answer:

A. Chemical traces of phytoplankton that remain after millions of years are analyzed for data indicating water temperatures.

Can someone please help me answer this question?

Answers

Answer: Are fur color and eye color in mice inherited traits?

I think.

Explanation:

PLZ ANSWER QUICKLY, WILL GIVE BRAINLIEST
Do either of your diseases in part A have the same pattern of inheritance as the model of the colorblindness mutation you made? How do you know?

Answers

You are missing part of the question but color blindness it less likely to be found in female because it is a sex trait that lies on the x gene while also being submissive trait sry I forgot the word. Guys only have one x gene meaning they are much more likely to get it

Of the alternate energy sources you have learned about, which one do you think is the most likely to become a part of our country's future. Why do you feel this way?

Answers

It’s energy of genetics your welcome lol

Answer:

probably water wheels

Explanation:

PLEASE HELP ME!!!


3) Describe a eukaryotic cell. Your description should include where you would expect to
find these types of cells.

4)Describe a prokaryotic cell. Your description should include where you would expect to
find these types of cells.

Answers

3)Eukaryotic cells have membrane-bound organelles. They have a nucleus. They are usually found in animals and plants. In all multicellular organisms and some unicellular(amoeba)

4)Prokaryotic cells don't have a nucleus. They don't contain membrane-bound organelles they only contain ribosomes.They are much smaller. Bacteria are prokaryotes.

Used for structural support and found in plant cells wood and natural fibers

A. Cellulose
B. Starch
C. Chitin​

Answers

Lo más seguro es que sea la b siempre es la b

TRUE or FALSE?
When reading the codon chart, you are supposed to use the tRNA anticodon to find the amino acid.

Answers

True is the answer to your question

DNA evidence analysis is an imperfect science. Provide two reasons why this may be the case.

For my Biomedical Science Class

Answers

Answer:

Not all DNA that was found at the scene has to be related to the scene.

Explanation:

Just because DNA was found at the scene, that doesn't mean that the person there is actually guilty. For example, in a case where person B is guilty, a strand of hair from Person A could be carried over to another scene on Persons B's clothing.

Answer:

Because DNA is more reliable than other forensics, scientists have shrugged off suggestions that it could fall victim to the vagaries of bias. But Dror noted that much DNA analysis involves interpretation. With interpretation comes subjectivity, and with subjectivity can come error. Only one-tenth of 1 percent of human DNA differs from one individual to the next and, although estimates vary, studies suggest that forensic DNA analysis is roughly 95 percent accurate.

Explanation: Hope this helps

Please I will do anything BRAINLIEST 20 POINTS

Answers

Answer:

question 2 is newtons first  law

Explanation:

PLEASE HELP ME WITH THIS!
Considering ethical questions is part of a marine scientist’s job. Part of being ethical is doing your homework and exploring all sides of an issue. Choose a current ethical issue in marine science, such as the use of genetically modified organisms (GMOs), conditions in fish farms, or another topic your instructor approves. Find two perspectives supporting one side of the ethical issue and two supporting the other. Be sure to use reliable sources, such as university web sites or newspaper/magazine articles. Create an outline with at least five points for each side. Then write a brief paragraph explaining what you believe an ethical choice around this issue is. Remember, ethical problems are difficult because both sides have valid points. Be sure to consider and discuss at least one point you think is valid from the side that you disagree with in your conclusion as you explain why your choice is the ethical one. Also, include a list of sources that you used. Two is the minimum for each point of view.

Answers

lo siento cariño, esto está fuera de mi alcance, los biloogistas marinos son geniales y me encanta ayudar, pero no puedo, lo siento mucho. como si realmente estuviera jodiendo como si apesta jaja quiero ayudarte pero no puedo

One current ethical issue in marine science is the use of genetically modified organisms (GMOs) in aquaculture.

What are genetically modified organisms?

Genetically modified organisms (GMOs) are living organisms whose genetic material has been artificially altered in a laboratory using genetic engineering techniques.Here are two perspectives supporting each side of the issue:

Perspective 1: According to a report by the World Health Organization (WHO), GMOs have the potential to reduce the environmental impact of aquaculture by decreasing the need for wild fish as feed, reducing the use of antibiotics, and decreasing the risk of disease outbreaks.

Perspective 2: Opponents of GMOs in aquaculture argue that they pose a significant risk to wild fish populations and the environment. According to the Ocean Conservancy, GMO fish can escape from fish farms and breed with wild fish, potentially altering the genetic makeup of natural populations and harming biodiversity.

Therefore, use of GMO's is profitable as well as hazardous for the environment.

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Explain transformation in DNA

Answers

Plasmid or vector transformation is the process by which exogenous DNA is transferred into the host cell. Transformation usually implies uptake of DNA into bacterial, yeast or plant cells, while transfection is a term usually reserved for mammalian cells.

PLEASE HELP!!!! I JUST NEED THIS INFORMATION SO I CAN START!!!

One of Jase's favorite hobbies is catching frogs. Lately, he 's also been studying a lot He about physical chemical changes. He understands that new substances are produced during a chemical change, but what happens during a physical change?

Answers

Answer:

On explanation

Explanation:

A physical change when objects or substances undergo a change that does not change their chemical composition, examples would include melting, transition to a gas, textural change, shape, size, color, volume and density.

When the concentrations of solutions are the same on both sides of a membrane, the two solutions are​

Answers

Answer:

di ko nga alam sagot dyan ii search mo nalang sa ibang application bhie

Once pollen lands on the stigma, it forms a pollen ____________________ down through the long_____of the pistil [the female reproductive part] into the flower's ______– which contains ovules. fill in the blank

Answers

Answer:

1. Pollen tube

2. Style

3. Ovary

Explanation:

This process is describing the process of POLLINATION, which is the transfer of pollen grains from the anther of a male flower (androecium) to the stigma of the female flower (gymnoecium). After pollination i.e. the pollen has landed on the sticky stigma, the pollen grows out a tube called POLLEN TUBE.

The pollen tube extends through the STYLE of the female flower called PISTIL to the OVARY. The ovary is the reproductive part of the female flower that produces the ovules, which the sperm in the pollen is about to fertilize.

I need help asap... dont guess

Answers

Answer:

vfsewvfdcsewfcd

Explanation:

What seismic hazard is a form of structural failure?

Answers

Pancaking - shaking that causes a building's supporting walls to collapse and the upper floors to fall one on top of the other like a stack of pancakes.

Answer:Pancaking - shaking that causes a building's supporting walls to collapse and the upper floors to fall one on top of the other like a stack of pancakes.

Explanation:

In certain rats, black fur is dominant over white fur, If two rats that are both heterozygous for fur colored are mated, what would their offspring be expected to have?

Answers

Answer:

Three different genotypes and two different  colors

Explanation:

Because both rats have heterozygous genes, meaning they have 2 different alleles, ex: "Yy") The offspring can have different genotypes and colors because the parents have heterozygous genes.

hope this helps!

The offsprings of the cross between two heterozygous rats will have the following genotypes: BB (black), Bb (black) and bb (white).

According to this question, a gene coding for fur color in rats is involved. The allele coding for black fur (B) is dominant over the allele for white fur (b).

If two rats that are both heterozygous for fur are crossed i.e. Bb × Bb, gametes B and b will be produced by both rats. Using this gamete in a punnet square (see image), the following offsprings will be produced: BB, Bb and bb.

BB - black offspringBb - black offspringbb - white offspring

Therefore, the offsprings of the cross between two heterozygous rats will have the following genotypes: BB (black), Bb (black) and bb (white).

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ASAP!!!!!!! I NEED HELP
Why are there two sets of phases during meiosis, but only one during mitosis? Think about what is different about meiosis and mitosis


Answer correctly or I will report

Answers

Answer:

Cells undergoing mitosis just divide once because they are forming two new genetically identical cells where as in meiosis cells require two sets of divisions because they need to make the cell a haploid cell which only has half of the total number of chromosomes.

Explanation:

Set of 25 green plants and 25 mushrooms were put in a cool, dark room for two weeks. Each set was watered daily with 50 mL of a 0.1% fertilizer solution. Which statement best explains why the green plants died and the mushrooms survived?

Answers

Answer:

This question lacks options, however, it can be answered based on general understanding.

The green plant died because of absence of LIGHT

Explanation:

Plants (green) are autotrophic organisms i.e. organisms that are capable of synthesizing their own food via a process called PHOTOSYNTHESIS. However, on the other hand, mushrooms (kingdom FUNGI) are heterotrophic organisms i.e. rely on other organisms for energy source and cannot make their own food.

Green plants strictly require light energy from the sun in order to perform the process of photosynthesis. According to this question, a set of 25 green plants and 25 mushrooms were put in a cool, dark room for two weeks and watered daily with 50 mL of a 0.1% fertilizer solution. The green plants, despite the nutrients and regular watering dies because they were not exposed to LIGHT in order to make their food via photosynthesis. However, since light is not a requirement for mushrooms to obtain food, they will surely survive.

Eukaryotic cells are somatic non-sex cells true or false

Answers

Answer: true

Explanation:

Why does that pattern happen? (Hint: Think about what “cm per second” means.)

Answers

Answer:

It only moves a specific amount per second.

Explanation:

this is very vague because there was no context but you get the gist of it

Special chemicals that recognize and attach to germs are called what?

A. Antibodies

B. Red blood cells

C. Pathogens

Answers

Special chemicals that recognize and attach to germs are called Antibodies. Thus, the correct option is A.

What is Antibody?

An antibody may be characterized as a protein produced by plasma cells in response to a specific antigen.

The major function of an antibody is to eliminate disease-causing organisms which are known as pathogens or any other external germs and barricade them from contaminating human cells.

Such antibodies after synthesis attach to germs or digested antigenic particles and then mediated the process of eliminating all such foreign particles.

Therefore, special chemicals that recognize and attach to germs are called Antibodies. Thus, the correct option is A.

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Self-report inventories are personality tests wherein individuals respond to vague stimuli in a way that may reveal their needs, feelings, and personality traits. Please select the best answer from the choices provided T F​

Answers

Answer:

false

Explanation:

The statement "Self-report inventories are personality tests wherein individuals respond to vague stimuli in a way that may reveal their needs, feelings, and personality traits." is a false statement

What is stimuli response?

Generally, stimuli response is simply defined as a process that leads to a change in the state of an organism

In conclusion Self-report inventories are personality tests wherein individuals respond to vague stimuli is not true.

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Multiply (2x + 5)(3x - 4).

Answers

The answer is : 6x^2 + 7x -20

Answer:

6 [tex]x^{2}[/tex]  +  7 x  −  20

what are the products of alcoholic fermentation ?
what are the products of lactic acid fermentation?

Answers

Answer:

alcoholic-- ethanol and carbon dioxide

lactic-- it produces lactate

Explanation:


1- why dong you usually get sick from the exact same pathogen twice

2-if a pathogen mutated so it had different antigens, would your memory B and memory T cells recognize it?

please help this is due at 3pm

Answers

1: For example, rhinovirus has over 100 different serotypes. Now, the good news is that you can't get ill from the same virus serotype right after getting better, due to the fact that you'll have developed antibodies which help to protect your immune system for a little while.

2:Most children in the United States are now vaccinated against measles virus; before vaccination was widespread, most were naturally exposed to this virus and suffered from an acute, unpleasant, and potentially dangerous viral illness. Whether through vaccination or infection, children exposed to the virus acquire long-term protection from measles. The same is true of many other acute infectious diseases: this state of protection is a consequence of immunological memory.

The basis of immunological memory has been hard to explore experimentally. Although the phenomenon was first recorded by the ancient Greeks and has been exploited routinely in vaccination programs for over 200 years, it is just now becoming clear that memory reflects a persistent population of specialized memory cells that is independent of the continued persistence of the original antigen that induced them. This mechanism of maintaining memory is consistent with the finding that only individuals who were themselves previously exposed to a given infectious agent are immune, and that memory is not dependent on repeated exposure to infection as a result of contacts with other infected individuals. This was established by observations made on remote island populations, where a virus such as measles can cause an epidemic, infecting all people living on the island at that time, after which the virus disappears for many years. On reintroduction from outside the island, the virus does not affect the original population but causes disease in those people born since the first epidemic. This means that immunological memory need not be maintained by repeated exposure to infectious virus

28) 6CO2 + 6H20 + (energy) → C6H12O6 + 602
What process is being shown in the chemical equation above?
Help

Answers

Answer:Photosynthesis can be represented using a chemical equation. The overall balanced equation is. ... Learn about the retirement process, managing your existing files, and alternative services at the Andrew File System Retirement Information ...

Explanation:

Which statement describes landforms?

Answers

Answer:

What statements can I choose from?

Explanation:

In {external fertilization,
internal fertilization,
conjugation, or pollination}
mating partners come close to one another and release eggs and sperm.

Answers

Answer:

Explanation External fertilization is characterized by the release sperm and eggs into In fertilization protects the fertilized egg or embryo from predation an Ovoviparity is characterized by an organism retaining a fertilized egg

Based on the graph in Figure 2, identify the environmental conditions (flower density AND proportion of deep flowers) where a short- tongued bee has the greatest relative advantage over a long tongued bee. Based on the graph in Figure 2, identify the range of proportion of deep flowers at which a long tongued- bee always has an advantage over a short tongued bee.

Answers

Answer:

The correct answer would be - low flower density and low deep flower proportion

Explanation:

To find the environmental conditions for a short-tongued bee has the greatest relative advantage over long-tongued bees it is required to find the highest value of relative advantage short-tongued bees has on long-tongued bees which is the point where flower density and deep flower proportion is lowest (near the zero) according to the graph. That is represented in the graph by the peak in the white shaded portion.

To find the range of deep flower proportion at which a long-tongued bee has an advantage take a closer look to the grey shaded area where if the deep flower proportion move from 0.6 to 1 the advantage of long-tongued bees over short-tongued.

Floral density with the graph shows the low flower density and low deep flower proportion. Floral density often influences the species composition of flower visitors.

This variation in visitor species composition has significant effects on pollination success and plant fitness, poorly understood, especially in the many pollination guilds dominated by non-territorial species.

How do flower visitors diverse the traits?

It explores how flower visitors with diverse traits should distribute themselves across resource patches differing in floral density.

The model predicts that species with low flower search speeds and low flower handling costs compared to competitors will usually dominate dense flower patches.

In addition, amongst flower visitors that have lower energy expenditure rates while handling flowers than while traveling, species maximizing energetic efficiency are associated with dense flower patches.

Therefore, the correct answer is low flower density and low deep flower proportion.

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