A person who has allergies has a compromised immune system because the body's immune system
attacks its healthy cells.
overreacts to an antigen.
steals nutrients from healthy cells.
responds to mutagens.

Answers

Answer 1

Answer:

B

Explanation:


Related Questions

45637456425637561457324751276567 x³+y³+z³=kf im homopfobic

Answers

what- ...... i’m so confused

What does this timeline suggest about the feminist movement?​

Answers

Answer:

B

Explanation:

Which statement is an example of a qualitative measurement?
A
That structure is four meters long.
B
Water can have a cold temperature.
с
This solution has a temperature of 56° C.
D
Light travels at 3 x 108 m/s.

Answers

Answer:

The correct answer is - B. Water can have a cold temperature.

Explanation:

Qualitative measurement is a type of measurement that is not based on numerical or numbers but is completely based on the quality of the particular thing. It can be distinguished on basis of the term quality which is based on the character of the substance or condition whereas quantitive is which is based on numerics or numbers.

Among these, all the three choices have numerical measurement but the choice in which it is expressed that water can have cold temperature is qualitative measurement as cold is the quality of the water here.

Sex linked genes are located on the


a. autosomes

b. the X chromosme only

c. the Y chromosome only

d. both the X and Y chromosomes

Answers

Answer:

d

Explanation:

Answer:

D. Both X and  Y chromosomes

Explanation:

Sex linked is a trait in which a gene is located on a sex chromosome. In humans, the term generally refers to traits that are influenced by genes on the X chromosome. This is because the X chromosome is large and contains many more genes than the smaller Y chromosome.

The Hawaiian honeycreeper bird has a mutualistic relationship with the Hawaiian silversword plants. The Hawaiian silversword plants have been widely destroyed due to human development in the area

Which of the following explanations BEST predicts how human development will affect the Hawaiian honeycreeper bird population?

Answers

Answer:

The Hawaiian honeycreeper bird population will decrease because they rely on the Hawaiian silversword plants for survival.

Explanation:

The destruction of Hawaiian silversword plants due to human development hurts the Hawaiian honeycreeper bird population as the bird exists in a mutual relationship with the plants.

What is the relationship between Hawaiian silversword plants and honeycreeper birds?

Hawaiian honeycreeper bird has a mutual relationship with Hawaiian silversword plants, where the bird feeds on the plant's nectar and pollinates the flowers. If the plant population decreases, it will result in a reduced food supply for the bird which decreases their population size.

Loss of the silversword plants also destroys their habitat which can impact their population. Therefore, human development results in a decrease in the Hawaiian honeycreeper bird population.

However, the loss of the honeycreeper bird population also affects the ecosystem as they play a very important role in seed dispersal and plant reproduction which reduces plant diversity and also negatively impact other species that depend on the Hawaiian silversword plants for food.

Therefore, the destruction of Hawaiian silversword plants hurts the Hawaiian honeycreeper bird population as the bird exists in a mutual relationship with the plants.

Learn more about Hawaiian silversword plants here:

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Evolution can occur at different rates; however, for evolution to occur,
there must be *
A) variations within a species
B) extinction of the species
C) asexual reproduction
D) no change in the genes of an organism

Answers

Answer:

A (this is filler for the 20 characters needed)

Muscles that produce movement in a single direction are
a. prime movers.
b. antagonists.
C. synergists.
O d. obliques.

Answers

a. prime movers

Muscles that produce movement in a single direction are prime movers

please help me it’s due in 20 minutes

Answers

Answer:

ok

Explanation:

1. p

2. n

3. n

4. p

5. n

6. p

7.p

8. n

Darwin observed that finches’ _______ were specialized according to their unique environments.

Answers

Answer:

beaks

Explanation:


The diagram below, best represents.

Answers

Answer:

B. An Ecosystem

Explanation:

A C and D do not fit the picture.

The structure composed of a sheet of simple squamous epithelial cells that's folded onto itself to form a double layer is a

Answers

Answer:

This question lacks options, the options are;

A. parietal layer.

B. serous membrane.

C. nuclear membrane.

D. mucous membrane.

The answer is B

Explanation:

The serous membrane is a covering membrane found in living systems. The serous membrane covers the surfaces of certain structures in the body such as heart, lungs etc. where they secrete lubricants that reduce friction during movement.

The structure of the serous membrane is composed of a sheet of simple squamous epithelial cells (secretes the lubricants) that folds onto itself to form a double layer. The layers are joined by a connective tissue.

In a few months, you receive a brief note from the breeder that he checked the four offspring and three have the purple trait and one has the white trait. Since only four offspring were produced, there are not necessarily enough offspring to observe the ratio you predicted. What is the probability of observing three purple and one white offspring: If the purple parent is Pp

Answers

Complete question:

1) Inspired by Gregor Mendel, you visit a local greenhouse to see what a pea plant looks like in person. You spot a plant in the corner and immediately notice that it exhibits the purple trait of the flower color character. This character is controlled by one gene with two alleles, the dominant purple P allele, and the recessive white p allele. Identify what you know for certain based on your observation. Check all that apply.

You know the genotype of the plant. This plant has at least one copy of the P allele.This plant must be heterozygous with respect to the flower color gene.You know the phenotype of the plant.

2) In another corner of the greenhouse, you find another pea plant. This plant, however, exhibits the white trait of the flower color character. The greenhouse plant breeder approaches you and mentions that he plans to cross-fertilize the two plants that you have seen. He offers to let you know how the offspring turn out. Without realizing it, the breeder is actually conducting a

dihybrid cross testcross monohybrid cross

3) If you were able to examine hundreds of offspring from this cross, what ratio of purple flowers to white flowers would you observe:

If the purple parent is PP ---------If the purple parent is Pp ----------

4) In a few months, you receive a brief note from the breeder that he checked the four offspring and three have the purple trait and one has the white trait. Since only four offspring were produced, there are not necessarily enough offspring to observe the ratio you predicted. What is the probability of observing three purple and one white offspring:

If the purple parent is Pp? ----------If the purple parent is PP? ----------

5) Based on the four offspring observed, you --------- (can/ cannot) know for certain whether the purple parent is Pp or PP.

Answer:

1)

This plant has at least one copy of the P allele. Because the plant is purple and the P allele is the one that codifies for this color. You know the phenotype of the plant. You can see that the plant has purple flowers, so you know its phenotype regarding flower color.

2) A test cross

3)

If the purple parent is PP → 1:0 (100% heterozygous purple flowers, Pp)If the purple parent is Pp → 1:1 (50% Purple Pp, and 50% white pp)

4)

If the purple parent is Pp? 3/4 = 75% purple and  1/4 = 25% whiteIf the purple parent is PP? 4/4 = 1 = 100% purple and 0 white

5) Based on the four offspring observed, you CAN know for certain that the purple parent is Pp.

Explanation:

Due to technical problems, you will find the complete question, the answer, and the explanation in the attached files.  

Using the DNA strand below, select the answer choice that displays the correct polypeptide sequence. DNA TAC/GCA/TTA/GGC/AAC/ACT a Meth-Ile-Pro-Gln-Leu-stop b Meth-Arg-Val-Ala-Trp-stop c Meth-Arg-Asn-Thr-Ala-stop d Meth-Arg-Asn-Pro-Leu-stop

Answers

Answer:

d Meth-Arg-Asn-Pro-Leu-stop

Explanation:

This question is describing the processes of transcription and translation of protein synthesis. Transcription is the synthesis of mRNA from DNA while translation is the synthesis of amino acid from mRNA. In this question, the following DNA sequence is given:

TAC/GCA/TTA/GGC/AAC/ACT

- Following the complementary base pairing rule i.e A-U, G-C, T-A etc, the following mRNA transcript will be produced after transcription:

AUG/CGU/AAU/CCG/UUG/UGA

- Using the genetic code, the following amino acid sequence will be produced from the above mRNA sequence after translation:

Methionine/Arginine/Asparagine/Proline/Leucine/STOP.

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Body Systems and Organization

Answers

Answer:

the answer to the question is B

Answer:

B) The reproductive system.

Explanation:

The reproductive system provides humans with the ability to reproduce.

hope this helps and is right :)

PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.

Answers

C or d

But I’ll choose C!

9.How does a hummingbird's beak help it to meet its basic needs?Lector inmersivo
(1 Punto)

The beak helps the bird to fly.

The beak allows the bird to swim fast.

The beak scares away predators.

The beak allows the bird to eat the nectar out of flowers.

Answers

Answer: the beak allows the bird to eat the nectar out of flowers

Explanation: Hummingbirds have long, needlelike beaks they use to probe deep into flowers.. The hummingbird's beak is just a protective sheath for its tongue, which is actually what the hummingbird is using to get the nectar out of the flower.

hope that helps if you have any questions let me know and if you could mark this as brainliest i would really appreciate it and press the thank you button!

A pulse of sugars labelled with a fluorescent dye is supplied to leaves of young plants. After a brief interval, tissue sections are obtained from the plant and examined under the fluorescence microscope. Tissues are scored for the presence of fluorescence and ranked from very high to low fluorescence. Which cells would contain the most fluorescence

Answers

A pulse of sugars labelled with a fluorescent dye is supplied to leaves of young plants. After a brief interval, tissue sections are obtained from the plant and examined under the fluorescence microscope. Tissues are scored for the presence of fluorescence and ranked from very high to low fluorescence. Which cells would contain the most fluorescence

a. xylem

b. companion cells

c. sieve elements

d. epidermis

Answer: b. companion cells

Explanation:

The xylem and phloem are the vascular tissues in plants. Their function is to transport water and sugars respectively to all the parts of the plant body. Xylem is only involved in water transport. Companion cells and sieve elements are the two components of the phloem. The companion cells are the storage house of sugars they have a role in movement of the sugars in and out of the sieve elements. They take up sugars via active transport by using their transmembrane proteins. The companion cells will show major fluorescence as these are the reservoir of sugars.

What are the four kinds of acid precipitation ?

Answers

Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms. This can include rain, snow, fog, hail or even dust that is acidic.
Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms. This can include rain, snow, fog, hail or even dust that is acidic.

Write down the classes of foods digested in the gut from the mouth to the duodenum?​

Answers

Explanation:

The chyme is gradually pushed down the duodenum by peristaltic waves which flow down the length of the digestive tract. Most of the digestion of the protein, fats and carbohydrate in the chyme is done by the enzymes in the duodenum, before the resultant mixture is passed further into the small intestine.

Storage polysaccharides, like starch and glycogen, often contain over a million glucose units. The energetic cost of synthesizing polysaccharides is high (about one high-energy phosphate bond per sugar residue added). Suppose that in a liver cell, the glucosyl residues in large numbers of glycogen molecules were replaced with an equivalent number of molecules of free glucose. What problems would this cause for the liver cell

Answers

Answer:

Glucose present as monomers within the cell will exert more osmotic pressure than a single glycogen molecule, resulting in endosmosis and the lysing of cells.

Also, the presence of free glucose molecules will result in increase in weight of the liver due to lack of efficient packing as in glycogen as well as the association ofnthe glucose molecules with water molecules.

Explanation:

Glycogen is a polysaccharide composed of glucose monomer units linked to Each other by α-1,4-glycosidic binds. α-1,6-branches arises at about every 10th glucose residue in the straight chain. Thus animals more glucose molecules to be stored within a much smaller space, thereby incresing the bulkiness of glycogen. Glycogen molecules are insoluble in the aqueous medium of the cell because it doesn't have enough free polar groups to participate in hydrogen bonding with water and are stored as granules and therefore do not affect the water potential or osmotic balance of the cell.

On the other hand, glucose molecules are highly soluble in water because it has many free polar -OH grours that form hydrogen bonds with water. If the glucosyl residues in large numbers of glycogen molecules were replaced with an equivalent number of molecules of free glucose, the free glucose will exert a high osmotic pressure inside the cell, causing the entry of water in the cell by endosmosis resulting in swelling and lysis ofnthe cell. Also, the space occupied by these free glucose units within the cell will be much larger than that of glycogen whichmenables efficient packing ofthe glucose molecules.

In the figure above, only the pathway labeled _____ requires oxygen.

a. A

c. C

b. B

d. A and B

Answers

Option a is the answer

Whether there is a net flow of fluid into or out of a capillary at a given spot along its length depends on _____.whether or not the fluid contains carbon dioxide whether or not the fluid contains oxygen whether the fluid contains nutrients or wastesthe balance between blood pressure and osmotic pressurethe needs of the tissue

Answers

Answer: Depends on the balance between blood pressure and osmotic pressure.

Explanation:

The capillaries are part of the microcirculation that transports nutrients to the tissues and removes cell excreta. The walls of the capillaries are extremely thin, constructed of single - layer, highly permeable endothelial cells. Therefore, water, cell nutrients and cell excreta can all interchange quickly and easily between the tissues and the circulating blood.

The tissues of the body is made up of soo many capillaries which helps to deliver blood and it's contents to it. The hydrostatic pressure in the capillaries tends to force fluid and it's dissolved substances through the capillary pores into the interstitial spaces. Conversely, osmotic pressure caused by the plasma proteins( called COLLOID OSMOTIC PRESSURE) tends to cause fluid movement by osmosis from the interstitial spaces into the blood. This osmotic pressure excreted by the plasma proteins normally prevents significant loss of fluid volume from the blood into the interstitial spaces.

Therefore, a balance between hydrostatic pressure in the capillaries which is influenced by blood pressure and osmotic pressure in order for a net flow of fluid into or out of a capillary to occur.

PLEASEEE HELPPPP!!!!!!!

Answers

Answer:

D

Explanation:

what is the final step in the water cycle?

Answers

Answer:

The funny thing is that the water that falls from the sky as rain today, might have fallen last week, last month, last year or thousands of years ago. It is the greatest recycler of all time! There are four main stages in the water cycle. They are evaporation, condensation, precipitation and collection.

HELP ASAP I WILL GIVE BRAINLIST! How many moles of Ca(OH)2 are present in 370.47 grams of Ca(OH)2? (5 points)

2

3

5

6

Answers

Answer:

c.5

Explanation:

moles= mass/molar mass

molar mass of Ca(OH)2=74.092gmol-1

moles=370.47/74.092

moles =5

Considering the definition of molar mass, 5 moles of Ca(OH)₂ are present in 370.47 grams of Ca(OH)₂.

Definition of molar mass

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

The molar mass of a compound (also called Mass or Molecular Weight) is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.

Molar mass of Ca(OH)₂

In this case, you know the molar mass of the elements is:

Ca= 40 g/mole

O= 16 g/mole

H= 1 g/mole

So, the molar mass of the compound Ca(OH)₂ is calculated as:

Ca(OH)₂= 40 g/mole + 2× (16 g/mole 1 g/mole)

Solving:

Ca(OH)₂= 74 g/mole

Moles of 370.47 grams of Ca(OH)₂

Next, you can apply the following rule of three: If by definition of molar mass 74 grams of the compound are contained in 1 mole, 370.47 grams of the compound are contained in how many moles?

[tex]amount of moles=\frac{370.47 gramsx1 mole}{74 grams}[/tex]

amount of moles≅ 5 moles

Finally, 5 moles of Ca(OH)₂ are present in 370.47 grams of Ca(OH)₂.

Learn more about molar mass:

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What is the correct order of carbon dioxide as it leaves the respiratory tract?

Answers

Answer:

please give me brainlist and follow

Explanation:

Carbon dioxide (CO2) is transferred from returning blood back into gaseous form in the lungs and exhaled through the lower respiratory tract and then the upper, to complete the process of breathing.

carbon dioxide passes from the blood into the alveoli and is then exhaled. Oxygenated blood travels from the lungs through the pulmonary veins and into the left side of the heart, which pumps the blood to the rest of the body (see Function of the Heart).

stions
sc2bs13h.Ch07.05
A motor unit is a motor neuron (nerve cell) plus
of the muscle fibers it stimulates.
a. one-half
b. one-third
C. three-fourths
d. all

Answers

Answer:

D or A I think it might be D but maybe A

1. What was the dependent variable measured in the experiment?

A.the number of plants surviving after 30 days
B.plant height
C.pH of the water
D.the volume of water used to water the plants in the different groups
e. the mass of the plants in each group

Answers

Answer:

b.

Explanation:

mark me as brainleist please

Describe two primary functions of the cell membrane.

Answers

Answer:

Explanation:

The cell membrane, therefore, has two functions: first, to be a barrier keeping the constituents of the cell in and unwanted substances out and, second, to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.

The body is made up of systems that work together so that an organism can survive and grow. The musculoskeletal system contains muscles that move the body. How does the circulatory system help the muscles to function? OA. by transporting oxygen that can be used by the muscles to produce energy OB. by transporting oxygen that can be used by the muscles for sensing information OC. by transporting carbon dioxide that can be used by the muscles to produce energy OD. by transporting carbon dioxide that can be used by the muscles for sensing information​

Answers

Answer:

yes

Explanation:yes

Other Questions
"You are finished running the bases, you are sweating and you feel thirsty. What body systems are interacting in this case? Support you claim with evidence and explain you reasoning." What did workers do to improve their work conditions?B. Formed trade unionsA. Created FactoriesC. Held StriesD. Survived Famines An advantage of participant over nonparticipant observation is _____________ a. the observer may lose the objectivity needed to conduct the scientific observation b. the researcher may be able to experience events in the same way as natural participants c. it is always a more ethical research approach than nonparticipant observation d. the conclusions lack objectivity Refer to the passage."Urbanisation undermines caste. The relative anonymity of an individuals identity in a city makes it difficult for rules of purity and pollution to be observed and enforced in the public sphere.Fewer activities are then mediated by an individuals caste identity. And urbanisation will continue to increase. By 2030, 40 per cent of Indians are predicted to live in urban areas.The urban middle class, once a preserve of the upper castes, has become more diverse with gradual entry of backward castes and Dalits.The marriage market reflects this change. In 1970, only 1.5 per cent of matrimonial ads published in the national dailies belonged to backward castes and Dalits. This number had increased to 10 per cent by 2010.In cities, the search for partners differs from that in villages. People in the middle class shift from family and caste networks to friends and professional networks, and rely on technology. Already 250 million Indians own smartphones.Excerpt from "Caste and Marriage in Urban Middle-Class India by Amit Ahuja, 2016How has the caste system in rural Indian areas adapted to globalization differently than the caste system in urban areas?- Rural areas have been unaffected by globalization because of their isolation.- Rural areas have changed the most socially, as globalization has led to an adoption of Western culture.- Rural areas have been slower to adapt socially to the changing global society, as technology and industrialization have had less impact.- Rural areas have seen a greater weakening of the caste system, as many people from lower castes have moved to urban areas in search of work. what is a counter claim for racism (for an essay) Discusstheimportanceofbackingupdatainorganizations,pointingoutthebenefitsofcloudbackupoption the two sentences that contain both a dependent and an independent clause into the box below. After school got out, the teachers held a meeting. While the teachers met, the school board talked with the principal. The board members voted to build a new library. The parents were excited, but the students were very happy. The principal made the announcement, and he told the local newspapers about the new library. If you wanted to put a fence around your garden, would you find the perimeter or the area of the garden?? Ed stands on a moving walkway and gets from one end of the walkway to the other in 20 seconds. The walkway is 44 feet long. Which statements are true? Every 8 seconds, Ed travels 32 feet. Ed travels 11 feet every 5 seconds. Ed travels 2.2 feet per second. Ed travels 0.9 of a foot every 2 seconds. Every 10 seconds, Ed travels 22 feet. Ill give points + brainalist, btw you might need to look up the whole story by yourself but Ill give a little bit with the picture (: Please helpppppp will give brainliest!!!!!!! 2. What is the use of the percent sign (6) and underscore in the LIKE clause? How do they differ inoperation and production of a report? The classification of some organisms has changed. Which new process is used to reclassify organisms?A. Organisms are now given Latin-based scientific names.B. Structures are now examined at the molecular level.C. Organisms are now divided into three kingdoms.D. Structures are now used to classify organisms. Need some answers with this question Does anyone know the answer to question 6? Read the excerpt from Act III of Julius Caesar.Announcer 1: The crowd, which loved Pompey and then Caesar and now Brutus, waits to hear Antony speak.Citizen 1: (With conviction) This Caesar was a tyrant.Citizen 3: Nay, that's certain. We are blessed that Rome is rid of him.Citizen 2: Peace, (He sees Antony trying to quiet them.) let us hear what Antony can say.Announcer 2: Antony begins by stating he will only bury his friend, not say how good he was.Antony: (Sadly) Friends, Romans, countrymen lend me your ears. I come to bury Caesar, not to praise him. The noble Brutus hath told you Caesar was ambitious. (He sighs.) If it were so, it was a grievous fault, and grievously hath Caesar answered it.(He sighs again, and the citizens begin to feel uncertain about the "if'') He was my friend, faithful and just to me. But Brutus says he was ambitious, and Brutus is an honorable man. (With grief) When that the poor have cried, Caesar hath wept! (Sarcastically) Yet Brutus says he was ambitious, and Brutus is an honorable man.Announcer 1: Antony then makes his main point - the crowd saw Caesar refuse the crown three times.Antony: You all did see that on the Lupercal I thrice presented him a kingly crown, which he did thrice refuse. Was this ambition? (The citizens shake their heads.) Yet Brutus says he was ambitious, and sure, he is an honorable man. (By now the citizens exchange worried looks, as the facts do not make sense.)(Pointing to Caesar's corpse) You all did love him once, not without cause. (He wipes tears from his face.) Bear with me. My heart is in the coffin there with Caesar, and I must pause till it come back to me. (He covers his face with his robe.)Citizen 1: (Unhappily) Methinks there is much reason in his sayings.Citizen 2: (Shocked) Caesar has had great wrong.Citizen 4: Marked ye his words? He would not take the crown, therefore, 'tis certain he was not ambitious. (The others agree.)How does Antony's speech change the viewpoint of the citizens?They realize that Caesar should not have been murdered and Brutus misled them.They understand that Brutus was telling the truth about Caesar's ambition.Antony reminds them that Brutus is a good person, and only wants what is best for Rome.Their love for Caesar is gone, and they are convinced that Antony should be the next emperor. Write a story that deals with a character recovering from a tragic loss due to drug addiction. ILS.Carnival visitors507090110130150What fraction of the days did the carnival have 70 or fewer visitors?Submit Silver sulfate dissociates into silver ions and sulfate ions:Ag2SO4(s) = 2Ag+ (aq) + SO42- (aq)Which of the following equations is the equilibrium constant expression forthis reaction?A. Kot[Ag+][80.21[Ag 2504)O B. Ko = [Ag+ 12 [5042")[A92504)O C. KE =[Ag+1?[s042-7O D. KG[A92504[Ag+ ][5042-) Solve the system of equations and choose the correct answer from the list of options. d + e = 15 d + e = 5 Label the ordered pair as (d, e). (4 points) Question 3 options: 1) (0, 0) 2) (10, 5) 3) (5, 10) 4) (10, 5)