The role of active cytotoxic t cells is to attack _____. see concept 43.3 (page)

Answers

Answer 1
The answer would be: body cells that have been infected

Cytotoxic comes from word cyto- which mean cells and toxic which mean poison. That means cytotoxic cells will be poisonous to the cells. Cytotoxic t cells roles are to attack cells that infected by pathogens. Some pathogens hide inside the cells so that they won't captured by the leucocytes. 
Cytotoxic t cells destroy such cells so the pathogens inside them could be killed.

Related Questions

Birds migrating, cats chasing prey, sea turtles moving toward the ocean immediately after birth, and joeys moving to the mother's pouch immediately after birth are all examples of ________.

Answers

The answer is 'instinct'. This is innate complex behavior exhibited by an organism that is not learned. Some common examples are dogs shaking themselves dry when wet, honeybee communication via intricate dances, animal courtship behavior during mating season and the building of nests by birds.

Final answer:

Innate behaviors are hardwired actions that occur naturally in animals, such as migration in birds and imprinting in geese, where they follow an object that resembles their mother after birth.

Explanation:

Birds migrating, cats chasing prey, sea turtles moving toward the ocean immediately after birth, and joeys moving to the mother's pouch immediately after birth are all examples of innate behaviors. Innate behaviors are those that are hardwired into an animal's biology and are performed without prior experience or training. These behaviors occur naturally in all members of a species. Migration is one such behavior, where animals move from one place to another, often in response to environmental changes, such as the change of seasons. Birds, for example, migrate to find warmer areas with more food during the winter months.

Imprinting is another example of innate behavior, seen in species like geese, which refers to the critical period shortly after hatching when they form attachments and follow objects that resemble their mother.

Designing and constructing buildings that are energy efficient, economical, and made of recycled materials, is a trend called:

Answers

Designing and constructing buildings that are made of recycled materials, energy efficient, and economical, is a trend called Green architecture.

A client and her partner are working together to achieve an unmedicated birth. the client's cervix is now dilated to 7 cm, and the presenting part is low in the midpelvis. what should the nurse instruct the client to do that will alleviate discomfort during contractions

Answers

The nurse can instruct the husband to encourage her wife to breathe deeply and slowly to alleviate pain and discomfort during contractions. Patterned breathing can help the wife to cope with pain during labor, it will also increase oxygen supply of the mother and the baby too. 

why might a animal conservation group report more on evidence of climate change

Answers

Because animals might be in danger

In any dihybrid cross where both parents are heterozygous for both traits, what is the phenotypic ratio of the offspring? A)1:1:1:1
B)6:3:2:1
C)9:3:3:1
D)12:4:3:1

Answers

In a dihybrid cross, the ratio is 9:3:3:1

In any dihybrid cross ration is 9:3:3:1.

What is the phenotypic ratio of a dihybrid cross if both parents are heterozygous for both traits?

The phenotype ratio predicted for dihybrid cross is 9 : 3 : 3 : 1. If parents are heterozygous, and one allele for each trait exhibits complete dominance.

What is phenotypic ratio of dihybrid cross?

In Mendel's dihybrid cross the phenotypic ratio was 9 : 3 : 3 : 1.

Hence , C is correct option

To learn more about dihybrid cross , here

https://brainly.com/question/21169228?referrer=searchResults

#SPJ2

TEN MEDAL QUESTION
Post an example of a conflict that can arise during a workout, how you can recognize it, and how you can resolve it. For example, you could post that a side stitch, a sharp pain under the ribs, can cause conflict while running. The best way to relieve it is to stretch the cramping muscle. Extending one's arms overhead and taking deep breaths can help relax the muscle.,

Answers

When running, one conflict that might arise is how far you are able to run without stopping for water. You might want to go a very long way and be unfamiliar with the area, so it is important to have scouted ahead for any place that can offer a drink. Otherwise, you will find yourself wondering whether it is safe for you to continue further away from home without adequate hydration.

The process of making new dna molecules is semiconservative. this means that every new dna molecule is composed of

Answers

The process of making new DNA molecules is semiconservative. this means that every new DNA molecule is composed of one strand of old DNA bound to one strand of newly synthesized DNA.

What is DNA replication?

DNA replication is the process through which the genome's DNA (deoxyribonucleic acid) is copied in cells. Before a cell undergoes division, it must first replicate its entire genomic material so that each of the resulting daughter cell ends up with its own complete set of  genetic material.

DNA replication is semi-conservative in nature. This means that in every double helix molecule of DNA, the new generation of an organism consists of one complete old strand and one complete new strand of DNA wrapped around each other.

Learn more about DNA replication here:

https://brainly.com/question/16464230

#SPJ5

What did Charles Darwin discover about the theory of evolution?

Answers

Charles Darwin established that all species have a common ancestor. The pattern of evolution also was a result of natural selection. 

Answer:

natural selection

Explanation:

hope this help! :)

How are fructose and glucose different?


One is a monosaccharide and the other is a disaccharide.


One has 6 carbon atoms and the other has 5 carbon atoms.


They have a double-bonded oxygen in different locations.


They each have a unique molecular formula.

Answers

Answer:

Option). They have a double-bonded oxygen in different locations.

Explanation:

Both glucose and fructose are monosaccharides, having molecular formula C₆H₁₂O₆.

Glucose and fructose are different sugars, aldose and ketose respectively, due to the different position of carbonyl group (double bonded oxygen with carbon or C =  O group).  

In glucose, the oxygen atom makes double bonds with last carbon atom of the chain, which means carbonyl group shows an aldehyde group. Thus, it is an aldose sugar.

In fructose, the oxygen makes double bonds with an internal carbon atom and represents a ketone group. Thus, it is a ketose sugar.

Thus, the correct answer is third option.

Final answer:

Fructose and glucose are both monosaccharides and isomers with the same molecular formula, C6H12O6. They differ as glucose is an aldose and fructose is a ketose, and they have different ring structures; six-membered for glucose and five-membered for fructose.

Explanation:

Fructose and glucose are both monosaccharides with the same molecular formula, C6H12O6, but they differ in their structural arrangement, making them isomers. One of the primary differences is that glucose is an aldose, with the aldehyde group at the end of the molecule, whereas fructose is a ketose with the ketone group in the middle of the molecule. While glucose forms a six-membered ring, fructose forms a five-membered ring structure. These differences in structure lead to variations in their chemical properties and how they are metabolized in the body.

Plants play a major role in the carbon cycle. Plants use carbon dioxide for

Answers

the process of photosynthesis

Answer: the process of photosynthesis

Explanation:

An inversion occurs along part of a chromosome. How does the inversion most likely affect the region in which it occurs?

A. Recessive alleles in the region become dominant alleles.

B. The coding sequence in the region disappears entirely from the cell.

C. Multiple frame-shift errors in the region are triggered after translation.

D. The information in the region is read differently during transcription.

Answers

I think the answer is A Because i remember taking this test and yea...thats my answer 20/10

Answer: The correct answer is-

D. The information in the region is read differently during transcription.

Inversion is a type of mutation ( that is permanent change in the genetic material of living organism) that occurs after break in a chromosome, which is followed by the rearrangement of the broken segment.

In other words, when a segment of chromosome is broken and reversed/rearranged within itself, it is called inversion.

It leads to change in the DNA sequence, due to which information in the region ( that is genetic information present in the form of nucleotide sequences)  is read differently during transcription ( conversion of DNA to mRNA).

Thus, option D) is the right answer.

In order to get around the lack of ability of prokaryotes to remove introns from precursor rna, it may be necessary to

Answers

turn mRNA into cDNA
 hope it helped:)

The term iteration means the same as the action of looping.
a. True
b. False

Answers

Hello!

The correct answer to your question is A - True. Iteration means the looping or repetition of something. 

I hope this helps you! Have a great day!

the correct answer is true

"abnormal enlargement of air sacs in the lungs can lead to which condition"

Answers

The correct answer is emphysema.
Emphysema is the enlargement of air sacs in the lungs.
It is a long-term, progressive disease of the lungs that primarily causes shortness of breath. People who have emphysema, their air sacs in the lungs (alveoli) is damaged. Over a period of time, the inner walls of the air sacs weaken and rupture creating larger spaces instead of many small ones. Normally, the lung tissue holds these small airways called bronchioles, open, allowing air to leave the lungs on exhalation. However, when the lung tissue is damaged like in the case of emphysema, these airway collapse, making it difficult for the lungs to empty and the air (gases) becomes trapped in the alveoli thus causing impaired gas exchange.

A plant that has been raised in a sterile environment shows symptoms of a viral infection. how would you explain this?

Answers

The answer would be: The viral infection was acquired by vertical transmission.

Vertical transmission happens when the plant parents are infected before the plants detach from it. It could happens during asexual reproduction or in seeds of sexual reproduction.
That means, the infection spread before the plant raised in the sterile environment. 
This can be explained by the concept of vertical transmission of a virus, i.e., the virus is inherited from a parent. During asexuak reproduction, the offspring is genetically identicle to the parent. Here, during the development of the offspring through the stem, root or bulb of the parent, the parent's virus is passed to the offspring. In sexual reproduction, viral transmission occurs as a result of seed infection.

Explain how ozone in the stratosphere is formed.

Answers

Stratospheric ozone is formed naturally by chemical reactions involving solar ultraviolet radiation (sunlight) and oxygen molecules, which make up 21% of the atmosphere. In the first step, solar ultraviolet radiation breaks apart one oxygen molecule (O2) to produce two oxygen atoms (2 O) (see Figure Q2-1).

Sunlight's UV rays (sunlight) and the oxygen molecules that make up 21% of the atmosphere interact chemically to create stratospheric ozone in a natural process.

What results in formation of stratosphere, earth atmosphere?

The very significant ozone layer is found in the stratosphere. The ozone layer aids in shielding us from the sun's ultraviolet (UV) rays.

In actuality, the ozone layer filters out the majority of the UV rays the sun emits at us. Without this layer of defense, there would be no such thing as life as we know it.

Oxides of nitrogen and volatile organic compounds, usually mentioned to as hydrocarbons, undergo chemical substance interactions that lead to ozone.

Both close to the earth and high in the atmosphere, this reaction is possible.

Therefore, The stratosphere contains the famed ozone layer.

Learn more about stratosphere here:

https://brainly.com/question/13497783

#SPJ6

Since dna has a negative charge in which direction will it go in the gel if there are bubbles what does this mean

Answers

The direction will be toward the positive charge on the other end. If there are bubbles it means the current is running. DNA  are molecules which stores genetic material. DNA is negatively charged because of the phosphate backbone since they are negatively charged also. To separate DNA using agarose gel electrophoresis, the DNA is loaded into precast wells in the gel and a current applied. Since the phosphate backbone of the DNA molecule is negatively charged, the fragments of DNA will migrate to the positively charged anode.

Result of this action potential releases what ion from the terminal cisternae

Answers

The  terminal  cisternae  releases  calcium  ion

  
The  terminal  cisternae   act  as   calcium  storage  sites.  The  calcium  ions  stored in  the  terminal  cisternae  are  essential  in  muscle   contraction. The  calcium  release  unit  of  muscle  consists of  terminal  cisternae  of  the  sarcoplasmic  reticulum  and  it  is  adjacent  transverse  or T-  tubule  that  is  the  invaginated  part  of  the  surface  membrane.

In science, a scientific theory is defined as a/an __________.

Answers

The scientific theory contains many steps. It could also be known as a hypothesis. Hope this is helpful

Infections of which sexually transmitted disease can be greatly reduced by a vaccination?

Answers

The correct answer is Human Papillomavirus Infection (HPV).
HPV is one of the most important sexually transmitted diseases which could cause precancerous wounds that could increase a person's risk for cancer of the cervix, mouth, throat and genital parts. There are more than 170 types of HPV. In the past decade, scientists have developed vaccines which can prevent most of the common types of HPV infection. 

Which two groups are the most similar in physical characteristics? Eukarya and Eubacteria Archaea and Eubacteria Archaea and viruses Archaea and Eukarya

Answers

Answer: Archaea and Eubacteria

Archaea are similar to eubacteria that make it used to be classified as bacteria by the scientist.
Note that eukaryote(Eukarya) and eubacteria are different. Both eubacteria and archaea is a prokaryote, organism that doesn't have a membrane in their nucleus. Eukarya is the opposite of prokaryote, organism that has membrane-bound organelles.

Archaea and Eubacteria

Which groups of viruses require an rna-dependent rna polymerase?

Answers

Most viruses have RNA genomes that are replicated and transcribed into messenger RNA by viral RNA-dependent RNA polymerases (RdRps), usually in concert with other viral and host factors. Many, if not most, eukaryotes also encode putative RdRps that have been implicated in sequence-specific, RNA-triggered gene silencing. Although the viral and cellular RdRps have no sequence homology, they share functional similarities such as copying messenger RNA templates and intercellular spread of the amplified sequences. Better understanding of viral and host RdRps will improve our ability to control viruses and to use RNA silencing and viruses as tools for research, biotechnology, and medicine.

Consider the consequences of a mutation in the dna template sequence 5'atg3' to 5'ttg3': what is (a) the resulting change in the mrna codon and (b) the effect on the corresponding amino acid? see section 16.4 (page 344) .

Answers

a) The resulting changes in mRNA codon would be;
 CAU TO CAA; This because in the mRNA the base Thyamine is replaced by cytocine, therefore A would pair with Cytosine.

B) The effect on the corresponding amino acid would be a change from His to Gln. This mutation would result to a change form Histidine to Glutamine; this is because the codon CAU codes for Histidine while CAA codes for Glutamine.

While working in a forensic lab, you are given a bit of tissue to analyze. it has several layers. the upper surface consists of dead, flattened cells. as you move deeper into the tissue, the cells look healthier. the bottom layer of cells is actively dividing. under the dividing layer is an acellular protein goo. you identify the sample as ________ tissue?

Answers

that would be stratified epithelial 

Where in our environment does our body obtain the oxygen it needs? What two systems are responsible for obtaining the oxygen and delivering it to the cells?

What system provides the nutrients that the cells will convert to energy?

During the process of making energy, our cells produce waste products. What systems are used to expel CO2?

What are the systems that are used to eliminate solid and liquid wastes?

Describe the relationship between the bones and muscles for movement, and the other systems that are necessary for the bones and muscles to function.

What systems are responsible for meiosis and what are the results?

Answers

Answer:

We get oxygen from the air i.e. atmosphere. Green plants release oxygen in the atmosphere as a byproduct of photosynthesis. Respiratory system is responsible for obtaining oxygen from the environment. Circulatory system on other hand helps in delivering this oxygen to different cells of the body with the help of blood.

We get nutrients from the food that we eat. Digestive system breaks down all the complex compounds (such as polysaccharides, polypeptides, fats etc) into simpler elements which are easy to absorb.  

[tex]CO_{2}[/tex] produced as a waste product by the cells is carried by the blood to alveoli in the lungs where it gets diffused out and come out of the body as a part of exhale air. Hence, circulatory system helps in he transportation of [tex]CO_{2}[/tex] from cells to the lungs and respiratory system helps in expelling it out from the lungs to the outside environment.

Solid wastes are mainly excreted out of the body from anus which is a part of digestive system. On the other hand, liquid waste (urine) is excreted out of the body with the help of urethra which is the part of excretory system. In addition, excess salts and water can also excrete out of the body through skin.

Muscles and bones together help us in our locomotion. Nervous system is important for proper functioning of bones and muscles.

Meiosis is the type of cell division used to produce haploid cells or gametes from a diploid parent cell. Hence, it is used in reproduction system to produce sperm in males and eggs in females.

What information is not required on the nutritional portion of a food label?

Answers

i had this question and it was price

hope this helps


Answer:

Price

Explanation:

Out of all the options "Sizes" is the only option that is not included on the label.

The nutrition facts label is nutritional information that is written on the packaged food that shows the percentage of the nutrients present in the packaged food.

Different countries in the world has their nutrition guidelines for all packaged food that are been sold in daily basis

nutrition information that's well detailed helps the consumers to have a good eating habit and this information can only be produced by the producers.

Some information on the label includes;

1.)INGREDIENTS; the ingredients are usually arranged in certain order I.e from the major ingredients(highest quantity) to minor ingredients (lowest quantity) such as sucrose,additives and others. and any FDA- certified must be included.

2.)DAILY VALUE; It is used on food label to so that the consumers can plan a healthy diet, it provide the percentage of the nutrients that is contained in a serving of food.

3.)PORTION SIZE; is the amount of a food consume in single occasion.

Is it possible to have erosion without depositon explain

Answers

Yes, a circumstance would be where some of the parent rock was dissolved by water. Another would be where acid mine drainage could dissolve a carbonate, thus releasing the CO2 to the atmosphere. Was this answer helpful?

Using the punnett square.
What is the probability that the hamsters’ offspring will have straight fur?
A. 25%
B. 50%
C. 75%
D. 100%

Answers

I'm pretty sure it would be 50%

DNA and RNA are both
Answer
made up of nucleotides and carry molecules from one end of a cell to another
molecules that contain genetic information and are made up of nucleotides
monomers of protein molecules that provide structure to a cell’s nuclear membrane
protein molecules that carry the unique genetic information of an organism,

Answers

The answer is DNA and RNA are both molecules that contain genetic information and are made up of nucleotids, because a nucleotide is always a monomer of a nucleic acid and both RNA and DNA are nucleic acids that gather all of the genes that belong to an organism.

List and explain the factors that influence blood pressure, and describe how blood pressure is regulated.

Answers

Arterial blood pressure reflects two factors:
How much the elastic arteries close to the heart can be stretched (their compliance or dispensability)
The volume of blood forced into them at any time. If the amounts of blood entering and leaving the elastic arteries in a given period were equal, arterial pressure would be constant. Blood pressure rises and falls in a regular fashion in the elastic arteries near the heart.
Other Questions
After suffering a traumatic brain injury, garland appeared to be unconscious. however, when he was told to imagine playing soccer or driving to his office, garland's brain activity looked like that of healthy volunteers. which term best describes garland's mental state? garland is experiencing somnambulism. garland is in a flow state. garland is experiencing altered consciousness. garland is in a state of hypnosis. In your notebook, set up the following addition using a vertical format and find the sum of the given polynomials.7b + 3, -4b + 5 and -3+2A.) 10b + 2B.) 10C.) 0D.) b - 8Please explain. How many playlists can we make with 38 songs if we can repeat 5 songs in each playlist? Use the permutation or combination formula if applicable. in what states would you find sultans, and how would sultans be the same or different from caliphs Michael sold 23 of his CDs and purchased 16 more. If Michael has 25 CDs now, how many CDs did he have to begin with? Byzantine art and architecture were strongly influenced by what culture. SOMEONE PLEASE HELP!!!!!In this excerpt from A Bird Song by Christina Georgina Rossetti, which three lines contain internal rhyme?[[a year almost that I have not seen her:]][[Oh, last summer green things were greener,]][[Brambles fewer, the blue sky bluer.]][[It's surely summer, for there's a swallow:]][[Come one swallow, his mate will follow,]][[The bird race quicken and wheel and thicken.]] Some psychologists think our personalities are a result of the environment. Some believe that they are the result of our genes. And still others believe they result from a combination of both. A psychologist who thinks our personalities result from the environment supports the _____ concept. What type of discrimination usually involves jokes or negative stereotypes being perpetrated about fellow employees? 1+3x/4=5/2 Solve the proportion for x. A.7/5 B.3 C.5 D.6 HELP ASAP PLEASE HELP ASAP PLEASE HELP ASAPThe rental car holds 25 gallons of gas and gets 18 miles per gallon. The trip to Yarrow City is 1350 miles. How many times will the car need to be filled up to make the trip?A.2B.3C.4D.5 which answer correctly explains why most factories were located along the eastern coast. A. the first factories took over ship building area. B. Shipping companies were the first to switch to factory building. C. early factories needed sea water for processing raw materials. D. sea ports facilitated shipping goods and receiving raw material Where are the Galapagos Islands located? The temperature is 9 degrees below zero What is one significant effect of agribusiness in the United States? Write the following as a whole number:19 thousands + 46 hundreds + 32 tens + 57 ones Sara, a seventh grader, is eager to respond to questions in class, and regularly raises her hand to respond. however, in spite of her efforts, mr. edwards calls on one of her classmates each time. this process continues for the next two days with the same results. the third day sara sits quietly, not raising her hand. focusing on sara's behavior, the case study best illustrates: Find the amount paid for the loan.$2400 at 10.5% for 5 years Most college libraries use what numbering system? simplify: 27k^5m^8/(4k^3)(9m^2)