which of the following is considered a second-line defense?
A.circuatory
B. digestive
C. nervous
D. respitory

Answers

Answer 1

Answer:

B. Digestive

Explanation:

It destroys invaders.


Related Questions

Doctors often count the amount of neutrophils in a person's blood to see if he or she has a certain illness. Why would this be a useful test?

Answers

Answer:

Because they will increase or decrease in specific diseases which, along with other cell counts, would help narrow down the illness.

Explanation:

Lymphocytes one of the subtypes of immune cells present mainly in the lymph of the lymphatic system. They are composed of 3 types of cells

T-Cells

B-Cells

Natural-Killer (NK) Cells

T-Cells and B-Cells function as detection cells. Where they recognize & mark "non-self cells" or "infected self cells" as potential threat to the body and initiates or signals for their immediate elimination.

NK cells on the other hand, will recognize & eliminate "non-self cells" or "infected self cells" directly.

These cells will mostly respond to viral infections or tumor cells. Thus, their blood levels will increase mostly in these situations.

This means that if the patient is suffering from a fever or a sore throat, then the doctor can conclude whether this infection is caused by a viral or bacterial infection depending on how high Lymphocytes increases in the CBC test.

However, it should be noted that it is not used as a "sole" test but one of the tests to help narrow-down and pin-point the illness.

I hope that answered your question.

Kissing, sexual intercourse, and hand shaking are examples of what?
a. Indirect contact transmission
b. Direct contact transmission
c. Air transmission

Answers

b. direct contact intermission
b. direct contact transmission :)

Hanson is designing an experiment to test the porosity of a soil sample. His experiment involves the following:
Place the soil sample in a water-tight container.
Slowly pour water into the container.
Measure the volume of water that the soil absorbs.
Which of the following would improve Hanson's experiment?
A.
if he measured the volume of the soil beforehand
B.
if he measured the mass of the soil beforehand
C.
if he measured the porosity of the water beforehand
D.
if he measured the mass of the water beforehand

Answers

Answer:

A

Explanation:

If he measured the volume of the soil beforehand.

If Hanson measured the mass of the soil beforehand and then Slowly pour water into the container and measure the volume of water that the soil absorbs. This would improve Hanson's Soil porosity experiment.

What is porosity of soil?The percentage of total soil volume taken up by pore space is known as soil porosity.The porosity of a soil is essential for a variety of reasons. The fact that soil pores contain the groundwater that many of us drink is one of the main reasons. The oxygen contained within these pore spaces is another significant feature of soil porosity. Because all plants require oxygen to breathe, a well-aerated soil is essential for agricultural production.Soil particle texture, soil structure, soil compaction, and the amount of organic material in the soil all influence its porosity. A fine-textured soil can hold more water than a coarse-textured soil.

How will measuring the mass of soil beforehand will improve Hanson's experiment?when the mass of soil is measured prior to the experiment, it will contain a certain mass (M1) which will be lesser than the one gained after the experiment.After water is poured over the soil, the mass (M2) of the soil will increase due to absorption of the volume of water.the total water absorbed can be calculated by subtracting M2 from M1 which will give the total volume of water absorbed by the soil.

other options are incorrect:

if he measured the volume of the soil beforehand soil is measured in mass and liquids like water have a volumeif he measured the porosity of the water beforehand, water does not have porosityif he measured the mass of the water beforehand, water does not have mass it has volume. measuring volume of water before experiment is of no use.

learn more about Soil porosity here:

https://brainly.com/question/1023696

#SPJ2

what are the accessory organs of the digestive tract?

Answers

Answer:

tongue, salivary glands, pancreas, liver, and gallbladder.

Explanation:

hope this helpss :)

Answer:Plz mark Brainliest

Overview of the Accessory Digestive Organs

Salivary Glands. Saliva, which is made in the salivary glands,...

Pancreas. The pancreas is located behind the stomach and it is important to digestion...

Liver. The liver is one of the largest organs in the body.

Gallbladder. The gallbladder is a much smaller organ that is located in a spot just under the liver.

Explanation:

I learned this a while a go

A girl is less likely to experience bloating it breast tenderness if she reduces what?

Answers

Answer:

✨SALT✨

Explanation:

trust me drop some of the salt adamants in your diet it'll do u a great deal!!

Match the definition to the corresponding term.

Answers

Answer:

1. Cells

2. Systems

3. Organelles

4.

5. Nucleus

6.

7. Cytoplasms

8. Dna

9. Connective cells

Explanation:

Sorry that’s all I know....not sure about 9 btw

2 Points
Which of the following is the best definition of peer review?
O A. The process through which scientists present their findings to the
popular media
B. The process through which scientists provide feedback about one
another's writing skills
O C. The process through which scientists review one another's
communication skills
D. The process through which scientists review one another's work to
validate results and conclusions
G
SUBMIT

Answers

Answer:

D. The process through which scientists review one another's work to

validate results and conclusions

Explanation:

Peer Review works on literary findings and not communication.

The process through which scientists review one another's work to validate results and conclusions, is the best definition of peer review. The correct option is D.

What is peer review?

The system of peer review is employed to assess the merit of a manuscript prior to it being published.

Independent researchers in the relevant research area evaluate submitted manuscripts for originality, validity, and significance to assist editors in deciding whether to publish a manuscript in their journal.

Peer review is essentially an academic term for quality assurance. Each article that appeared in a peer-reviewed journal was thoroughly reviewed by a panel of experts on the topic of the article.

Peer review is meant to evaluate the validity, quality, and, in some cases, originality of articles submitted for publication. Its ultimate goal is to protect scientific integrity by filtering out invalid or low-quality articles.

Thus, the correct option is D.

For more details regarding peer review, visit:

https://brainly.com/question/9774552

#SPJ5

The energy needs of a human population are NOT affected by which of the following factors?
A
standard of living
B
location of energy sources
C
use of technology
D
amount of industry

Answers

The answer either b or d

Answer:

B, location of energy sources

Explanation:

Which layer is the oldest

Answers

Layer c is the oldest and then it’s b and a

A life cycle is best described as the...
-series of changes in the development of an organism
-movement of an organism from place to place
-ability of an organism to adapt to its environment
-flow of energy through the organism in the environment
Other:

Answers

Series of changes in the development of an organism.

Which of the following can limit the growth of a population of organisms?
Group of answer choices

A. Neither the number or predators nor diseases can limit the growth of a population of organisms.

B. The number of predators can limit the growth of a population of organisms, but diseases cannot.

C. Both the number of predators and diseases can limit the growth of a population of organisms.

D. Diseases can limit the growth of a population of organisms, but the number of predators cannot.

Answers

Answer:

c

Explanation:

population growth is entirely dependent on both of these

The one can limit the growth of a population of organisms is the number of predators, and diseases can limit the growth of a population of organisms. The correct option is c.

What is the population?

The amount of people in a population is referred to as its population size. The average number of people per unit of area or volume is referred to as population density. This is a term that refers to the human population that lives in a specific geographical area.

The map depicts the concentration of the human population on the planet from all the continents depicted. A population pyramid is a diagram that depicts the total number of organisms that are successfully living and interacting with one another in a specific location at a given time.

As a result, the population pyramid predicts that the population is increasing.

Therefore, the correct option is C. Both the number of predators and diseases can limit the growth of a population of organisms.

To learn more about the population, refer to the link:

https://brainly.com/question/17109210

#SPJ2

PLEASE HELP ME, I REALLY NEED THIS ANSWERS NOW!!!!! WORTH 130


1.) You work for the Minnesota DNR and are doing research on the pH tolerance of invasive species found in Minnesota lakes. Below are the results you found. Which species has the best / highest tolerance to pH changes?

- Zebra mussel (6.5 – 9.0)

- Eurasian water milfoil (5.4 – 11.0)

- Curly leaf pondweed (6.6 – 9.9)

- Silver Carp (5.5 – 9.0)


2.) What type of element is present in a supernova gas cloud that is not present in a smaller star like our sun?

Hydrogen

B)Gold

C)Helium

D) Carbon


3.) An average tree can absorb about 48 pounds of carbon dioxide from the atmosphere each year. If this tree is cut down, what happens?

A) 48 pounds of carbon dioxide is added to the atmosphere per year. Atmospheric oxygen levels decrease.

B) 48 pounds of carbon dioxide is taken out of the atmosphere per year. Atmospheric oxygen levels decrease.

C) 48 pounds of carbon dioxide is added to the atmosphere per year. Atmospheric oxygen levels increase.

D) 48 pounds of carbon dioxide is taken out of the atmosphere per year. Atmospheric oxygen levels increase.

Answers

Answer: 1)  Eurasian water millfoil

               2) Gold

                3) A

Explanation:

1. gold

2. 48 pounds of carbon dioxide is added to the atmosphere per year. atmospheric oxygen levels decrease.

Which substance acts as a buffer in

Answers

Answer : Examples of natural buffers are: carbonate and bicarbonate, phosphate, amino acids, and proteins.

An example of a polygenic trait is

Answers

Answer:

height, skin color, eye color, and hair color.

Explanation

Skin color
Hair color
Height

The diagram shows Virginia’s watersheds.





Which watershed is the largest in Virginia?

James
Yadkin
Chowan
Big Sandy

Answers

Answer:

James

Explanation:

It is the largest river

Which of these energy resources is estimated to be the most abundant? A. Petroleum B. Gas Hydrates C. Natural Gas

It is not coal. I know that for sure, that is why it's not an option here.

Answers

Answer:

Hydrates

Explanation:

they're the most abundant source of natrual gas. "Hydrates are a much more abundant source of natural gas than conventional deposits. According to the U.S. Geological Survey, global stocks of gas hydrates range account for at least 10 times the supply of conventional natural gas deposits, with between 100,000 and 300,000,000 trillion cubic feet of gas yet to be discovered."

What would provoke the body with the most energy
A.Breaking the bonds in a monosaccharide
B. Breaking a single carbon bond
C. Forming bonds between two amino acids
D. Creating bonds to form carbohydrates

Answers

The answer is Breaking the bonds in a monosaccharide :)

Answer:

A

Explanation:

Color of Stars

What is the correct order of the surface temperature of the stars, starting from the highest to the lowest?

A) Y, Z, W, X
B) X, W, Z, Y
C) Y,X, W, Z
D) Z, W, X, Y

Answers

Answer:

answer is D

Explanation:

hope this helps

Answer:

he is rong it is c Yxwz is right

Explanation:

single-celled organisms are able to maintain homeostasis even though they lack higher levels of organization such as organs and organ systems because...

Answers

Answer:

Because cells maintain homeostasis despite the amount.

Explanation:

When a change occurs in an animal’s environment, an adjustment must be made so that the internal environment of the body and cells remains stable. The receptor that senses the change in the environment is part of a feedback mechanism. The stimulus—temperature, glucose, or calcium levels—is detected by the receptor. The receptor sends information to a control center, often the brain, which relays appropriate signals to an effector organ that is able to cause an appropriate change, either up or down, depending on the information the sensor was sending.

Single-celled organisms are able to maintain homeostasis even though they lack higher levels of organization such as organs and organ systems because - all cell structures work together to maintain homeostasis.

Unicellular organisms like bacteria have various ways of maintaining homeostasis. There are various cellular structures and particles to maintain homeostasis. For example,

Bacteria also have sensors, a protein molecule, that sense and respond to toxic levels of heavy metals in the environment and also help regulate beneficial metal ions.Unicellular such as bacteria can control the lipid composition in their plasma membranes to regulate the permeability for substances to move in or out.Bacteria and paramecium are unicellular organisms that use contractile vacuoles to control the amount of water inside of them.

Thus, Single-celled organisms are able to maintain homeostasis even though they lack higher levels of organization such as organs and organ systems because - all cell structures work together to maintain homeostasis.

Learn more about:

https://brainly.com/question/7265823

What are 7 major ecosystems?

Answers

Answer:

The major types of ecosystems are forests, grasslands, deserts, tundra, freshwater and marine. The word “biome” may also be used to describe terrestrial ecosystems which extend across a large geographic area, such as tundra.

Explanation:

Answer:The major types of ecosystems are forests, grasslands, deserts, tundra, freshwater and marine. The word “biome” may also be used to describe terrestrial ecosystems which extend across a large geographic area, such as tundra.

Explanation:

explain why habitat loss and habitat division are threats to biodiversity

Answers

The habitat loading because it has less then the other

fungi have characteristics that make them similar to both plants and animals which characteristics do fungi share with plants but not animals reproduce sexually contain nuclei yeah has cell walls make their own food ​

Answers

Answer:

C. Have cell walls

Explanation:

Answer:

c

Explanation:

Brailiest!!! It's almost due Please somebody help me with the answer 6. Explain the role of a specific enzymes in the digestive process. Include where they are produced, where they enter the alimentary canal, pH range in which they work best, the types of molecules they chemically digest and what products the chemical breakdownz form. (give 4 enzymes examples-Key on tge types of nutrients we process-carbohydrates, lipids[Fats], & proteins​

Answers

Answer:

The Role of Enzymes in the Digestive System. Chemical digestion could not take place without the help of digestive enzymes. An enzyme is a protein that speeds up chemical reactions in the body. Digestive enzymes speed up chemical reactions that break down large food molecules into small molecules.

Chosen enzyme: Protease

Role of the protease enzyme:

Protease refers to a group of enzymes whose catalytic function is to hydrolyze peptide bonds of proteins. They are also called proteolytic enzymes or proteinases. ... For example, in the small intestine, proteases digest dietary proteins to allow absorption of amino acids.

Location of production of the protease enzyme: Protease is produced in the stomach, pancreas, and small intestine. Most of the chemical reactions occur in the stomach and small intestine. In the stomach, pepsin is the main digestive enzyme attacking proteins. Several other pancreatic enzymes go to work when protein molecules reach the small intestine.

Where they enter the alimentary canal?

Proteases are released by the pancreas into the proximal small intestine, where they mix with proteins already denatured by gastric secretions and break them down into amino acids, the building blocks of protein, which will eventually be absorbed and used throughout the body.

pH range in which they work best: In pancreatic protease, it works best I.e, in the pH range of 7.5-8.0





Plants and Animals
Pinworms have smooth bodies, bilateral symmetry, and complete digestive tracts. What type of animal are they?

Answers

Answer:

The pinworm (species Enterobius vermicularis), also known as threadworm (in the United Kingdom and Australia) or seatworm, is a parasitic worm. It is a nematode (roundworm) and a common intestinal parasite or helminth, especially in humans.

Explanation:

Answer:

Pinworm, also called seat worm, or threadworm (species Enterobius, or Oxyuris, vermicularis), worm belonging to the family Oxyuridae in the order Ascaridida (phylum Nematoda). Pinworms are common human intestinal parasites, especially in children

Explanation:

Which of the following?

Answers

Answer:

i belive the answer is D

Explanation:

Which of the following involves mitotic cell division?

Answers

option a, option c and option d

Are Moon craters the result of volcanoes or impacts?

Answers

Answer:

Impacts

Explanation:

There are no volcanoes on themoon, the craters are from many impacts from meteors.Hope that answers it for ya!

What impact has the increase in the human population had on the number of invasive species?


A) It has allowed us to eradicate invasive species as they appear.


B) It has led to a decrease in invasive species because humans prevent their spread.


C) It has led to an increase in invasive species as humans accidentally or intentionally transport them to new areas and disrupt ecosystems.


D) It has not had any impact on the number of invasive species because humans do not transport invasive species or affect their survival.

Answers

D because it tells you all the information you need to know and so much more!
C makes the most logical sense. Applying it to us unknowingly spreading things around.

43-Which health condition is an infectious disease?
pneumonia caused by microorganisms
O heart problem caused by a high-fat diet
O lung cancer caused by smoking
O eye damage caused by ultraviolet light​

Answers

Answer:

A) pneumonia caused by microorganisms

Explanation:

The other 3 options are caused by environment and conditions

Lung cancer caused by smoking

Which of these is an example of a trait a person may have because of heredity? There are two correct answers.

a
dark hair
b
scar on a forehead
c
pierced ears
d
blue eyes

Answers

ojos azules pelo  scuroo
A and D
Those are the only logical answers
Other Questions
what are the dimensions of development? Twelve and sixty-eighty thousandths Which of the following reactions best represents the reaction between H3PO4and water?A) H3PO4 + H2O H2PO4- + H2OB) H3PO4 + H2O H2PO4- + H3O+C) H3PO4 + 3 H2O PO4 3- + 3 H2OD) H3PO4 + 3 H2O PO4 3- + 3 H3O+ Use the complement of the event to find the probability. A bag contains 2 red, 5 blue, and 3 green balls.What is the probability of not choosing a red ball? If the volume of the pyramid is 72cm, what is its height in cm?4 cm6 cmA) 3B) 9 C) 12D) 18PLS HELP ME! limitations were placed on the _?_ by the bill of rightsfederal government, people or states Significant differences among countries who faced European imperialism were What is the factored form of the polynomial? X^2 -12+27? Un compuesto tiene la siguiente composicin en tanto por cien: 19,3% de Na, y 26,9% de S y 53,8% de O. Su peso molecular es 238.Calcula la frmula molecular Joe went to the bank and withdrew $358 from his checkings account and his balance is now at -$96. He later deposited of his $800 check and put the rest in his savings account. How much money does he have in his checking account? find all solutions to the equation 5sin(3pix)+8=4 in the interval 0 < x < 2 Can anyone help me with question 1 and 2 Yurem is pulling a wagon across the playground with a force of 10 N. He asks Elian a to help. She agrees and pushes the back of the wagon in the same direction with a force of 12 N. What is the net force acting on the wagon? Pls help !! what are the two extreme market structures? WILL GIVE BRAINLIEST ANSWER TO WHOEVER ANSWERS FIRST AND CORRECT PLEASE EXPLAIN WHY YOU ARE CORRECT If you wanted to persuade someone that tiger poaching is wrong, do you think written,spoken or visual message might be most effective? Why? What does Ramadan encourage and teach? Kendra flips a fair coin two times. What is the probability that she will flip tails both times? For this question, is it asking for the total surface area of a cone? I tried that and I got none of the answer choices . identify at least 2 systems involved in this scenario:aadhya is enjoying a day at the park with her friends. she suddenly gets stung by a bee. her eyes begin to swell, hives appear on her body, and she begins to have difficulty breathing.