A scientist discovers that there is a virus that turns pil
bugs purple when they become infected, the virus also
slowty kills them. She wonders if this vrus is spread
through ar or through contact. She sets up four smal
chambers for her experiment, each has its own isolated
or supply. Each has 5 purple pill bugs and 30 gray normal pl buns, all the
same age, size, and sex One chamber has a divider separating the purpl
pill bugs on the left and the normal pl bugs on the right. The dvder
allows air to flow from the left side to the right side, but pl bugs
cannot pass through the divider: The second chamber has a dider
separating the infected and noninfected plibugs, but this divider does no
let ar pass through it, each side of the chamber has its own ar supply.
A third chamber is set up with no dividen, the pill bugs can interact with
each other. In the Fourth chamber, she places only 50 noninfected pl
bugs with no divider. Each day over a month, she observes the pl bugs
and records how many turn purple and how many die.

what is the independent variable, dependent variable, constants, control group, and experimental group?

Answers

Answer 1

In the given experiment to investigate if the virus spreads through contact or air, four chambers containing both infected and non-infected bugs are set up as follows:

With divider that allows air flowWith divider that doesn't allow air flowNo divider; both kinds of bugs are allowed to come in contactOnly non-infected bugs present

Here,

Independent variable: Infection by the virus which turns them purple and slowly kills them. Dependent variable: life of bugs that depends on the independent variable, which here is the the viral infection.Constant: age, size and gender of bugs have been kept same in every chamber.Control group: group 2 and 4 act as a control group. That is because, healthy bugs are kept in an isolated environment where contamination is not possible either through air or through contact.Experimental group: the first three chambers where infected bugs are kept along with non-infected bugs are a part of the experimental group.In Group 1, if the healthy bugs get an infection, it would suggest that the infection spreads through air since the barrier separating them allows air passage from one side to the other. Group 2, can act as a control group for group 1 since the barrier does not allow air flow and both chambers have separate air flow. In Group 3, if healthy bugs get infected then it would suggest that the infection spreads through contact.

Learn more about research methodology here:

brainly.com/question/18723483

#SPJ9


Related Questions

Are there any parts of the human body that get oxygen directly from the air and not from the blood?​

Answers

Answer:

Cornea of the eye

Explanation:

It is the only part in human body which has no blood supply. It directly takes oxygen from the air.

Answer:

yes, there is a part of a human body that gets oxygen directly from the air and not from the blood is "THE CORNEA"

How do emission and reflection nebulae differ?(1 point)
Responses

contain remnants of stars
contain remnants of stars

interactions with light
interactions with light

the presence of young stars
the presence of young stars

hard line edges
hard line edges

Answers

An emission nebula generally glows because of the close by stars that emit mild or photons. This nebula is visible in a sparkling crimson shadeation. On the contrary, a mirrored image nebula, that is frequently visible in blue, truely displays the mild of the close by stars.

Emission nebulae have a tendency to be crimson in shadeation due to the abundance of hydrogen. Reflection Nebula - A mirrored image nebula differs from an emission nebula in that it does now no longer emit radiation of its own. It is a cloud of dirt and fueloline that displays the mild electricity from a close-by supermegacelebrity or institution of stars. Clouds of excessive temperature fueloline.

The atom withinside the cloud are energized through ultraviolet mild shape a close-by supermegacelebrity and emit radiation as they fall returned into decrease states. These nebulae are generally crimson due to the fact the essential emission line of hydrogen occurs to be crimson.

To learn more about Reflection Nebula here

https://brainly.com/question/14137054

#SPJ1

The prokaryotic nucleoid is not surrounded by a.....

Responses

A plasmid

B cytoplasm

C membrane

D flagella

Answers

Answer: I think it's D, but it may be A

Explanation:

Collections of specialized cells and extracellular substances around them are known as a(n):_____.

Answers

Answer:

tissues

Explanation:

when the cell combined it make tissues that means they are specialized cells

the extracellular around them=====

the extracellular matrix of connective tissue is composed of ground substance and fiber

i think it help u

1
Which of the following is a symptom of cataracts?
Blurred vision
O "Halos" around lights
Experiencing double vision in one eye
All of the above

Answers

Answer:

The symptoms of cataracts are blurred or glory vision, Halos around light and double vision in one eye.

Therefore the answer is all of the above

If a plant's stomata were temporarily inhibited from opening during the daytime, how would this affect the plant?

Answers

The plant would be unable to perform cellular respiration, and cells would become starved for energy.Carbon dioxide wanted for photosynthesis is acquired thru open plant stomata. At night time, whilst daylight is not to be had and photosynthesis isn't occurring, stomata near. This closure prevents water from escaping thru open pores.

Because flowers should change gases thru their stomata, final them prevents flowers from taking on carbon dioxide (CO2). Without CO2, flowers can't make carbohydrates, and flowers can most effective reap this vital molecule whilst stomata are open.

Plants lose the bulk in their water thru stomata. Thus, they near their stomata at night time to save you extra lack of water thru them. Stomata cannot be closed withinside the daytime, due to the fact the plant has to consumption carbon dioxide for the manner of photosynthesis.

To learn more about open plant stomata here

https://brainly.com/question/13390748

#SPJ1

is deficiency of vitamin is called beriberi​

Answers

Answer:Beriberi is a disease in which the body does not have enough thiamine (vitamin B1).

Explanation:

Answer:

yes deficiency of vitamin is called beriberi

Will U and T ever appear in the same strand together?

Answers

No bc Uracil is part of RNA and thymine is part of DNA


.The protective outer shells of coral animals are formed from

Answers

Answer: limestone

or a calcium carbonate

Explanation:

Please help!

the trait for blue eyes in humans is caused by a recessive allele. if this gene is named e, what is the genotype of a blue-eyed person?

1.) ee

2.) ee

3.) e

4.) ee

Answers

Answer: ee

Explanation:

just took the test :)

Answer: the order i have them in here may or may not have the same answers unless its genetic research quick check

1. A version of a gene is called a. answer allele

2. The trait for blue eyes in humans is caused by a recessive allele. If this gene is named capital e, what is the genotype of a blue-eyed person?  answer ee lowercase ee not capital ee

3. Describe the relationships among genes, dna, and traits.  answer Traits are determined by genes, which are composed of dna.

4. In mice, the gene for tail length has two alleles. A long tail is dominant to a short tail. If a long-tailed mouse that is heterozygous mates with a short-tailed mouse, what are the chances of having offspring with short tails? answer 50%

5. What is meant by a phenotype ratio in a Punnett square? answer the fraction of possible offspring that can be observed to have a trait

hope i helped

Explanation:

What island is 65ºN,18ºW

Answers

Answer:

Iceland

Explanation:

a single stranded dna (oligonucleotides) can hybridize with (select one): select one: a. complementary dna b. complementary rna c. complementary protein d. a and b

Answers

A single stranded DNA (oligonucleotides) can hybridize with complementary RNA.

What is oligonucleotides?

Short DNA or RNA molecules called oligonucleotides have several uses in forensic science, genetic research, and testing. These tiny pieces of nucleic acids, which are frequently produced in the lab by solid-phase chemical synthesis and can be produced as single-stranded molecules with any user-specified sequence, are essential for artificial gene synthesis, polymerase chain reaction (PCR), DNA sequencing, molecular cloning, and the use of molecular probes. Ordinarily, oligonucleotides can be found in nature as small RNA molecules that control the expression of genes or as intermediates in the decay of bigger nucleic acid molecules.

Antisense oligonucleotides are single-stranded DNA sequences that bind to complementary locations in mRNAs and prevent translation by encouraging RNase H to cleave the RNA strand in mRNA-DNA hybrids. They are typically 15 to 25 nucleotides in length.

To know more about oligonucleotides, go to URL

https://brainly.com/question/14283189

#SPJ4

If you hold a salty cracker in your mouth long enough, it will begin to taste sweet. What is responsible for this change in taste?.

Answers

The salty cracker begins to taste sweet when kept in the mouth long enough because the cracker actually consists of carbohydrates that are broken down in the mouth by the action of salivary enzymes, forming sugars like glucose or sucrose.

Carbohydrates are the biomacromolecules. These are of three types: monosaccharides, disaccharides and polysaccharides. The examples are glucose, sucrose, starch, etc. The monosaccharides and disaccharides consists of sugars but polysaccharides do not contain any sugars.

Salivary enzymes are the digestive enzymes released in the mouth. These enzymes perform the breakdown of polymers made up of glucose or other monosaccharides as a monomer.

To know more about salivary enzymes, here

brainly.com/question/28169598

#SPJ4

john and sue are expecting a child, but are concerned about a rare autosomal recessive disease that is present in both of their families. in the pedigree, john is represented as individual iii‑11 and sue is represented as individual iii‑12; both are unaffected. john's sister, iii‑10, and sue's brother, iii‑13, both do not show evidence of the disease, but john's paternal grandmother and sue's maternal grandfather both had the disease. assign the appropriate symbol to each individual in the pedigree.

Answers

If he is a carrier of the gene, he may have received the disease allele from his mother, making him a carrier as well. received the allele from his mother. He received only one normal allele from his father.

Here is the family tree. I found exercises online.

Those without icons are II-5, II-6, II-8, III-10, III-11, III-12, III-13.

Her individual II-5 will be a half black/half white square. Square because the introductory text states that it is John's paternal grandmother (I-2) who has the disease. His mother contracted the disease, so she inevitably passed on an allele that was the disease allele, and his father did not have or exhibit the disease, so he was half black/half white. Yes, meaning that John's father (II-5) received only the normal allele.

Individual II-6 has a question mark in a circle. If John's father is individual II-5, she is John's mother, so circle. A question mark because there is no information about how her disease manifests itself in her.Her sister received two alleles for the disease.

Each her II-8 has a half black/half white circle. If her father is individual II-7 (square), she is Sue's mother, so circle. Because her father had the disease, he inevitably passed on an allele that was the disease allele, and her mother did not have the disease and showed no symptoms, so half black/half was white, and Sue's mother (II-8) received only one normal allele. .

The III-10 would have a circled question mark on it. She is a circle because, as said in the introduction, she is John's sister. Because we are unable to determine whether she carries all disease alleles or none at all, we have put a question mark beside her name. Since her mother is only a carrier of one disease gene, she might have inherited a disease allele from either her father or her mother; but, if her mother has the condition, she would unquestionably have inherited a disease allele from her mother and not from her father.

John, Individual III-11 has a question mark in the square. John is a man, so he is square. A question mark because we cannot determine whether he has the disease allele or no disease at all. From the introductory text, we conclude that he has no evidence of the disease, but the If he only has the allele, he may have acquired the disease allele from his father or mother. From his father if his mother is ill.

Sue, Individual III-12 has a question mark in a circle. Maru because it's a woman's Sue. A question mark because it is not possible to determine whether she has the disease allele or no disease at all. If she is a carrier, she may have received the disease allele from her mother, making her a carrier as well. She has a normal allele from her mother. She received her only one normal allele from her father.

Individuals III-13 are marked with a question mark in the square. According to the introductory text, he is Sue's brother, hence the square. A question mark because we cannot determine if he has the disease allele or not the disease at all.

To learn more Autosomal recessive disease  click below-

https://brainly.com/question/15060222

#SPJ4

fimbriae and pili differ in that fimbriae and pili differ in that pili are used for transfer of dna and motility. pili are used to transfer dna. there are only one or two pili per cell. pili are used for motility. pili are used for attachment to surfaces.

Answers

Fimbriae and pili differ in that: (a) pili are used for transfer of DNA and motility.

Fimbriae are the structures used for attachment.  These are long fragments that are proteinaceous in nature. Fimbriae play an important role in the synthesis of biofilms, thereby helping in colonization.

Pili are the short structures that appear hair-like on the surface of bacteria. Pili serve various purpose in the cell. These are: attachment, virulence, transfer of DNA, and movement. Pili also show antigenicity in the host's body. The pili used for the process of DNA transfer is also known as conjugative pili. This process is also called bacterial conjugation.

To know more about fimbriae and pili, here

brainly.com/question/12098542

#SPJ4

Predict what happens to cell membrane composition in the brain of a wolf living in yellowstone national park with hot summers and cool winters.

Answers

Okay so I believe they adapt to the environment

Which test would measure the coating of red cells by antibody as occurs in hemolytic transfusion reactions? *

Answers

Answer:

DAT(Direct Antiglobulin Test)

People see bullfighting as many different things. which of these does carmen not mention? a sport an art form a game a form of cruelty to animals

Answers

These does carmen not mention a sport an art form a game a form of cruelty to animals.

Given name Carmen has two distinct antecedents. Its primary roots are Spanish and Italian, and it is a shortened form of the Hebrew word for a mountain range in northern Israel, Karmel, which is used for Carmel and Carmelo.The Latin word carmen, which means "ode" or "poem" and is also the source of the English term "charm," is where the second derivation comes from. The word Carmenta, which derives from this root, is Latin in origin, as is the portion of archaic Latin known as "Carmen Saliare." The name is unisex in English, although it is typically given to women in Spanish, Portuguese, Catalan, French, and Romanian; it is frequently given to men in Italian.

To learn more about Carmen.

brainly.com/question/6841949

#SPJ4

How are brain and nerve cells function related to their structure?

Answers

Specialized projections called axons allow neurons to transmit electrical and chemical signals to other cells.

What impact does photosynthesis have on atmospheric carbon dioxide? Does it use or produce carbon dioxide?

Answers

Answer:

As photosynthetic organisms, plants take up atmospheric CO2, chemically reducing the carbon. This represents not only an acquisition of stored chemical energy for the plant but also provides the carbon skeletons for the organic molecules that make up a plant's structure. Plants use photosynthesis to capture carbon dioxide and then release half of it into the atmosphere through respiration. Plants also release oxygen into the atmosphere through photosynthesis.

Explanation:

The introductory passage discusses the importance of being able to study anme in a pure culture instead of in the consortium that exists in nature. Many bacteria exist in biofilms in nature. Based on the information in the passage and in the chapter, is it possible to create a pure culture of a species that normally exists in biofilms?.

Answers

Yes, as a biofilm can include a single species and numerous species can have planktonic growth or reside there.

Plankton- Microalgae, sometimes referred to as phytoplankton, are comparable to photosynthetic organisms in that they have chlorophyll and need sunlight to survive and develop. The upper ocean, where sunlight may reach the water, is where the majority of phytoplankton floats since they are buoyant. The growth of plankton is known as Planktonic growth.

Biofilm- An extracellular polymeric material matrix surrounds an assembly of surface-associated microbial cells that is known as a biofilm. Van Leeuwenhoek is credited with discovering microbial biofilms because he discovered bacteria on tooth surfaces using his crude microscopes.

To know more about the Biofilm, click on the below link,

https://brainly.com/question/12101103

#SPJ4

What monomers do shapes B, C, D and E represent?
Which macromolecule did you build?

Answers

The macromolecule which is formed or build is lipid.

What is lipid?

Lipid has been described  as an organic compound which has been not  able to dissolve in the water. The example of the lipid are oils, waxes, hormones, as well as fats. The main function or performance of the lipid has to maintain the structure or the components of the cell membranes, that storage site of energy, and important molecule of the cell signaling.

A monomer has been defined as a type of molecule that is able to  make chemical bond with any of the molecule and has been  form a long chain and polymer in a sequence of the chain of an unspecified or unknown number of the monomers.

Therefore, the macromolecule which is formed or build is lipid.

Learn more about lipid here:

https://brainly.com/question/3498396

#SPJ1

3. A cork has a mass of 3 grams and a volume of 16 cm 3 . Calculate the densit

Answers

Answer: 0.1875

Explanation: i just did D = M/V so 3/16 and got 0.1875

When incorporated into a polypeptide chain not at the n or c terminus, _______ would make the charge of the polypeptide more positive.

Answers

Answer:The answer is arginine.

Explanation:please give brainliest if right.

4. Calculate the actual size of one cell in each of the following microscope Images, as seen on low
power. Assume the FOV is 5.0 mm.

Answers

To calculate the size of the magnified cell we can use the following formula

Actual size = Image size(with ruler) / Magnification.

How does a microscope function to determine the size of a cell?

Divide the number of cells that span the field of view's diameter by the field of view's diameter to determine a cell's length. If 50 cells are aligned end to end to form a field with a diameter of 5 mm, then 5 mm/50 cells equals 0.1 mm/cell.

What is the equation for magnification image size and actual size?

Actual size = image size / magnification.

Image size = magnification x actual size.

To know more about cell size calculation visit:

https://brainly.com/question/23177537

#SPJ9

To deter- mine how long an SPF will protect a person from burning in the Sun, multi- ply the amount of time the person can spend in the Sun before starting to burn by the SPF rating. If an individual who usually burns in 10 min uses a product with an SPF of 15, how long will the protection last?

Answers

Answer:

Take the time you would normally burn in the sun without protection, 20 minutes will normally produce redness on a light skinned individual. Multiply this number by the SPF of your product. Example: with an SPF 15 x 20 minutes of sun time = 300 … is how many minutes you can stay in the sun without burning.

Predict what happens to cell membrane composition in the brain of a wolf living in yellowstone national park with hot summers and cool winters.

Answers

The cell membrane fatty acid composition will not change between season.

Which of the are following are most likely to diffuse by the cell membrane?

Phospholipids are made up of a single phosphate molecule that is often attached to the polar head group that defines the lipid group as well as a glycerol molecule bound to two lipid tails. These molecules have hydrophilic heads on a hydrophobic body.

It is likely that CO2 travels across the lipid bilayer far more quickly than any other molecule of these. Since CO2 only consists of three relatively tiny atoms and lacks a dipole moment, it is naturally predisposed to pass through the membrane quickly. There is no charge separation and a linear geometry since the two oxygens are joined by a double bond. The other compounds described are either significantly larger or both.

To learn more about Cell membrane refer

#SPJ4

The number of fatty acids in cell membranes won't alter with the seasons.

What are cell membranes?

All cells contain a membrane, known as the cell membrane or the plasma membrane, which isolates the interior of the cell from the external world. 

A lipid bilayer that is semipermeable makes up the cell membrane. 

The cell membrane controls the movement of materials into and out of the cell.

Fat-based lipids and 3. 33proteins make up the majority of the components of cell membranes. Phospholipids and sterols make up the majority of the two types of membrane lipids.

It offers defense against the outside environment for the cell and its cellular components. 

The flow of molecules into and out of the cell is controlled by its selective permeability.

To learn more about cell membranes, refer

https://brainly.com/question/1768729

#SPJ4

studying patterns of disease prevalence at different spatial and temporal scales offers a glimpse into both the potential for and results of coevolution of hosts and their parasites.

Answers

Studying patterns of disease prevalence at different spatial and temporal scales offers a glimpse into both the potential for and results of coevolution of hosts and their parasites.

What is starch ?

A polymeric carbohydrate called starch, also known as amylum, is made up of a lot of glucose units connected by glycosidic linkages. The majority of green plants synthesize this polysaccharide as a form of energy storage. It is the most prevalent type of carbohydrate consumed by people worldwide and is present in significant proportions in common foods like wheat, potatoes, maize (corn), rice, and cassava (manioc).

Pure starch is a powder that is white, odorless, tasteless, and insoluble in alcohol or cold water. It is made up of the branching amylopectin and the linear and helical amylose molecules. Starch typically comprises 20 to 25% amylose and 75 to 80% amylopectin by weight, depending on the plant. Animals store their energy in glycogen, which is a more intricately branched form of amylopectin.

To learn more about starch from the given link:

https://brainly.com/question/1237142

#SPJ4

pls i need correct answer :(

Of the five characteristics of living things, which one is required for the species to survive but does not have to apply to an individual?(1 point)

response to the environment

use of energy to function

reproduction

growth and change over a life cycle

Answers

Answer:

Reproduction

Explanation:

A species cannot survive if there is no reproduction but the individual can survive.

hep asap will give brainliest

Answers

Answer:

A Punnett Square is a helpful tool that helps to predict the variations and probabilities that can come from cross breeding. This includes predicting crossing plants, animals, even humans with each other for the first one.

cystic fibrosis and sickle cell anemia for the second one.

hope you get done soon!

mark brainliest if possibly!

got the image from the internet

Other Questions
Think of a metal spoon and a pot of hot water how does the particles of the water affect the particles of the spoon Part of layer F is missing between layer A and H on the left side of the diagram. What is the best geologic explanation to what happened to the layer? searched everywhere but can't find the answer for this one question, help por favor Name the seven social factors that affect the rates of teenage suicid3. Which of the following best describes theimpact of the Battle at Little Big Horn?A. It improved Native American and U.S. relations.B. It further deteriorated Native American and U.S.relations.C. It prevented any more massacres from happening.D. It encouraged a truce and cease fire agreement. Ben bunu .... Cevabn bulmaya 5+5 your positive thoughts about yourself and your ability to help others and solve problems are tied to your_ Fill in the blank with the correct conjugation of the verb in parentheses.You ___ (should) take an aspirin for pain. The reproductive isolating mechanism that occurs when the ranges of two species overlap, but they rarely come into contact with one another because they utilize different habitats is? Mrs. Weatherford spends 15% of each weekdaytraveling in her car. How many hours per daydoes Mrs. Weatherford spend in her car duringthe week? novotny te, slaughter e. tobacco product waste: an environmental approach to reduce tobacco consumption. curr environ health rep 2014;1(3):208216. doi 10.1007/s40572-014-0016-x Naomi's burger shack sold a total of 484 hamburgers today. three times as many hamburgers were sold without cheese as were sold with cheese. how many cheeseburgers were sold? use the roster method to write each of the given sets. the set of natural numbers x that satisfy x + 6 = 5 What others changes could lisa make possitively affect her budget The theory of how to grow GDP isO An equity concept while the theory of how to divide GDP is an equity concept.An equity concept while the theory of how to divide GDP is an efficiency concept.An efficiency concept while the theory of how to divide GDP is an equity concept.O An efficiency concept while the theory of how to divide GDP is an efficiency concept. A chessboard is made of 64 small squares. Suppose a single square on a chessboard has an area of 9 square centimeters. How long is one side of the entire board?PLEASE HELPPP A carpenter sells nightstands at a local store. The table shows the number of nightstands sold and the amount of profit earned.Number of Nightstands SoldProfit (in dollars)2$900?4810$3.600$4.500What is the missing value in the table?O $1,200$1,350O $1,800O $2,700Sign outUS Can anyone help with questions 2? :) Kaseem is taking his bicycle for a ride. His bicycle is a system, and its main purpose is to provide transportation. What is the desired output of this system Ayuda es urgente . Puntos