Analysis of the effect of lectin using chi-square analysis In science, it is not sufficient to say "My results look pretty good. More cells treated with lectin are in mitosis compared to those in the control, which supports my hypothesis that lectin is a growth promoter." A valid conclusion must be supported by appropriate statistical analysis. In this activity, the appropriate tool is the chi-square test. Because this test can be applied across many different situations, your instructor will introduce you to it when appropriate for your course. In chi-square analysis, you always begin with a null hypothesis. The null hypothesis states that there is no statistically significant difference between the results in the control group compared to the experimental group. If the null hypothesis is rejected (a null hypothesis is either rejected or not rejected) because variation between the control group and experimental group is too great, this lends support to an experimental hypothesis. In this case, the experimental hypothesis was that lectin is a growth promoter.If you do a chi-square analysis of the results of a study to compare the number of cells in interphase versus those in mitosis for both lectin-treated and untreated cells, which of the following would represent an appropriate null hypothesis?A. If lectin promotes cell division, then more cells will be in interphase than in mitosis when compared to a control. B. There should be no significant difference between the cells in interphase versus those in mitosis in the two treatments. C. There should be a significant difference between the cells in interphase versus those in mitosis in the two treatments. D. If lectin promotes cell division, then more cells will be in mitosis than in interphase when compared to a control.

Answers

Answer 1
B is your answer and explanation because I know ;)

Related Questions

undesirable side effects that may occur when taking this pill. (2 pts) 5. American soldiers who liberated the Nazi concentration camps at the end of World War II were so moved by the inmates' emaciation that they offered them candy bars and other rich foods. In spite of the inmates' extreme starvation, these foods had to be taken away from them. Explain why. Be specific as
possible. (2 pts)​

Answers

Answer:

The digestive system can't digest the food properly.

Explanation:

The inmates' extreme starvation, these foods had to be taken away from them because their digestive system can't digest the food properly. When a person experience long duration of starvation, the body can't digest that rich foods properly and has difficulty to digest it so that's why these foods had to be taken away from them and provide those foods which are easily be digested.

Differentiate between population density and population distribution.​

Answers

Population density just represents the average number of individuals per unit of area or volume. Often, individuals in a population are not spread out evenly. ... Population distribution describes how the individuals are distributed, or spread throughout their habitat

Answer:

Population density is the number of individuals in a population per unit area.

Population distribution is the pattern in which individuals in a population are dispersed in an area.

Explanation:

i got it right on edge 2021

The space shuttle Endeavor is launched to altitude of 500,000 m above the surface of the earth. The shuttle travels at an average rate of 700 m/s. How long will it take for Endeavor to reach its orbit?

Answers

Answer:

Time taken by space shuttle = 714.28 m/s

Explanation:

Given:

Distance cover by space shuttle = 500,000 meter

Speed of space shuttle = 700 m/s

Find:

Time taken by space shuttle

Computation:

Time taken = Distance / Speed

Time taken by space shuttle = Distance cover by space shuttle / Speed of space shuttle

Time taken by space shuttle = 500,000 / 700

Time taken by space shuttle = 714.28 m/s

Part A
When the following liquids are poured into the same container, they separate as shown in the image. Based on the data
in the table below, what caused the order of the layers?
rubbing alcohol
vegetable oil
water
corn syrup
Liquid
corn syrup
Volume Used
95 cm
90 cm
water
Mass
130.158
90.00 g
77.358
81.90 g
Density
1.37 g/cm
1 g/cm
0.91 g/cm
0.78 g/cm
85 cm
vegetable oil
rubbing alcohol
105 cm

Answers

The layers are formed due to difference of density of solutions.

The main cause of the order of the layers is the difference of weight and density of different liquids in the container. The liquids that has more weight means higher density will sink below the liquids that has less weight means lower density so due to difference in  their density corn syrup is located at the bottom due to higher density and rubbing alcohol is present at the top of the container due to lower density.

https://brainly.com/question/24277427

What caused the order of the layers can be attributed to the densities of the liquids.

The density of a substance is an indication of how heavy the substance is in relation to its volume. Mathematically, it is given as mass/volume.Hence, a liquid with a higher density will always be at the bottom of a liquid with a lower density provided that both of them are of the same volume.

In order words, immiscible liquids poured together in the same container will separate out according to their densities - starting with the highest density liquid occupying the bottom with the lowest density liquid staying topmost.

More about density can be found here: https://brainly.com/question/2548045

someone knows the answer would help me

Answers

Answer:

A

Explanation:

gel electrophoresis separate molecules according to the size of the molecules

Which of the following hormones is directly
controlled by nervous system?
A. Adrenaline
B. Estrogen
C. Thyroxine
D. Cortisol

Answers

Answer:

adrenaline is the hormone which is directly controlled by nervous system

What do members of a population have in common? Select all that apply.
O A. They have the same density.
B. They are the same size.
C. They live in the same area.
D. They are the same species.
E. They live at the same time.

Answers

Answer:

E. They live at the same time.

D. They are the same species.

the impact of grassroots challenges to trash incinerators​

Answers

Yea the impact of grassroots challenges to trash incinerators ;)

What are the main sources of greenhouse gas emissions on Earth?​

Answers

Answer:

Globally, the primary sources of greenhouse gas emissions are electricity and heat (31%), agriculture (11%), transportation (15%), forestry (6%) and manufacturing (12%). Energy production of all types accounts for 72 percent of all emissions.

I’m tryna meet you in the front

Answers

Explanation:

7.vena cava(D)

8.ammonia(A)

9.pancreas(A)

Methanogens are able to live in what enviroment

Answers

Methanogens are found usually in swamps and marshes. Because they dont require oxygen they are able to live in anaerobic conditions

The following answers for the Causes and Consequences features are examples and are not intended to represent a comprehensive list. In addition, the sequence of items is not meant to connote relative importance Sort the examples below into the appropriate bin. Think about which factors contribute to the spread of invasive species (causes), the consequences that result from the spread of invasive species, and possible solutions. Reset Help economic costs for control and removal of invasives decline of native organisms due to competition with invasives improved manual or chemical control measures increased global transport and mobility favorable conditions for invasives due to climate change stricter policies aimed at ballast water dumping and other particulars change in community structure and function Causes Consequences Solutions

Answers

Answer:

factors contribute to the spread of invasive species (causes)increased global transport and mobility favorable conditions for invasives due to climate changethe consequences that result from the spread of invasive specieseconomic costs for control and removal of invasivesthe decline of native organisms due to competition with invasives change in community structure and functionpossible solutionsimproved manual or chemical control measuresstricter policies aimed at ballast water dumping and other particulars

Explanation:

Dispersion refers to the change in an organism's range or distribution area. Different ecological and biogeographical processes might be involved in organisms' dispersion. The term "jump dispersion" refers to a few individuals in a short time that can cross a barrier and occupy a new area. In this situation, the establishment is not always for sure. For this to happen, they must reproduce and start a new population of a certain size that can survive the new conditions.  

Biologic Invasions refer to new species that establish in a new area far or out of their original distribution range. Once established, these species might be considered exotic or invasive, according to their reproductive rate, population growth, and interaction with native species.

The exotic species is the one that has been introduced and got to establish, but causes no damage or alteration to native ecosystems.

The invasive species is introduced into a new area, establishes, expands its distribution from the first invaded spot, and overgrows. As they expand, they compete with other native species for resources such as water, place, radiation, exposure, shelter, source of food, among others. Species are considered to be invasive because of their reproductive rate, population growth, and interaction with native species, which provokes huge damages to the native ecosystem.

It is very common for these species to escape and start new populations in the new area, where they have less environmental pressure and better conditions than in their origin area -fewer predators, more resources, better nitches-, and these factors favor their establishment.

There are some typical steps in an invasion process:

1) Introduction or dispersion to the new area,

2) Naturalization. The new species establishes in the new area. It can grow, reproduce and make use of resources.

3) Overgrowth and uncontrolled expansion.  

4) Interaction with other species.  

5) Stabilization.  

Biologic invasions are natural processes, that occur in small groups of individuals that can expand to other ecosystems. Their expansion is promoted by the appearance or disappearance of barriers.  But these biological invasions have been accelerated by human beings, referring to this as human-assisted invasions. These are the cases in which men transport species from one place to the other for different uses or purposes.

Once a species has become invasive, it turns very hard to eliminate it, especially because it requires big mechanical and economical effort. However, they can be controlled to avoid their wider expansion. There are different ways of controlling invasive species

Mechanical ChemicalBiological

White petal color is a recessive trait.

Answers

Answer:

An example of a dominant trait is the violet-colored flower trait. For this same characteristic (flower color), white-colored flowers are a recessive trait.

Explanation:

Which area appears only on the posterior part of the body? a)scapular b)patellar c)umbilical d)sternal

Answers

Answer:

Patellar

Explanation:

Answer:patellar

Explanation:

On the posterior side

Sets the metabolic rate for the cells of the body describes

Answers

Answer:

BMR ;  Basal Metabolic Rate

Explanation:

MR is  the rate of energy expenditure per unit time by endothermic animals at rest....

Metabolic comprises the process that the body needs to function.

Basal metabolic rate is the amount of energy per unit of timethat a person  needs to keep the body functioning at rest

Which statement explains why athletes experience a burning sensation in
their muscles after vigorous exercise?
A. Their muscles have taken in too much oxygen.
B. The conditions in their muscles have become anaerobic.
C. The temperature in their muscles has become too high.
D. Their muscles have become flooded with glucose.

Answers

Answer:

B. The conditions in their muscles have become anaerobic.

Explanation:

In humans, cellular respiration occurs naturally in an aerobic condition (presence of oxygen) but anaerobic respiration can be adopted in specific or extreme cases. One of those cases is after or during a VIGOROUS EXERCISE.

What happens is that, after a vigorous exercise by an athlete, oxygen becomes insufficient in their muscle cells due to high consumption. Hence, their muscle cells switch to anaerobic respiration (lactic acid fermentation), which causes the build up of lactate in the muscle tissues. This lactate build up cause athletes to experience a painful and burning sensation in their muscles.

Hence, it all begins when "conditions in their muscles become anaerobic after an exercise".

A teacher places 65 g of liquid water in a sealed plastic bag and then
places the bag in a freezer.
After the water freezes, what will be the mass of solid ice in the bag

Answers

Answer:

65g, mass is always constant. when the water turned to ice it's volume and density changes but not it's mass

Answer:A. Exactly 65 g

Explanation:just to make it more of a simple answer

If energy is needed to remove a phosphate group from a chain in ATP you can conclude that the energy needed for production must be

Answers

Answer:

Nmgxgxgcgxxggxtxyfhhchdydt

If Sarah had skin vesicles on the anterolateral region of her neck, which peripheral nerve is infected by the virus? To which peripheral nerve plexus does this nerve belong

Answers

Answer: transverse cutaneous nerve

- cervical plexus

Explanation:

The peripheral nervous system refers to the network of the motor and the sensory nerves which helps in connecting the brain and spinal cord to the entire human body. The peripheral nerves control movement, sensation, and motor coordination.

If Sarah had skin vesicles on the anterolateral region of her neck, the peripheral nerve affected is the transverse cutaneous nerve. The transverse cutaneous nerve innervates the skin which covers the anterior cervical region and it brings to the cervical plexus.

Briefly describe the main hormonal and physiological events of each of the following:the uterine cycle

Answers

Answer:

Menstruation, the follicular phase, ovulation and the luteal phase.

Explanation:

Menstruation, the follicular phase, ovulation and the luteal phase are the four events or phases of the menstrual cycle. Luteinizing hormone, follicle-stimulating hormone, and the female sex hormones i.e. estrogen and progesterone are the types of hormones that controls the uterine cycle. Each event in the uterine cycle has its own significance in the female body.

Why are antibiotics unhelpful for treating the common cold?
A. Colds are caused by antibiotics.
B. Antibiotics cannot treat illnesses.
N
C. Bacteria are not killed by atibiotics.
D. Colds are caused by viruses.

Answers

Answer:

D

Explanation:

Colds are only caused by viruses. Therefore, antibiotics only kill bacteria.

Which is NOT true of smooth muscle? A. They use peristalsis to move substances through tubes. B. They are found in the hollow parts of the body such as blood vessels and the small intestine. C. They can become fatigued. D. They are connected by gap junctions.​

Answers

Answer: the answer is C

Explanation: I been trying to find the same answer for this exact question for acellus and C was the correct answer

Why do you think it’s a challenge to reduce fossil fuel usage in homes in the United States? How could the use of fossil fuels affect the biodiversity in neighborhoods and the surrounding ecosystems?

Answers

Answer:

Well,for starters fossil fuels have been there since the beginning of the country's life style in using it.Eg;for household used such as cooking.

Explanation:

The used of fossils may affect the surrounding biodiversity,and ecosystem due to the amount of Carbon Dioxide they emitted when being lit,which contributes to Ozone Depletion,and other global issues

Sigmoidal plots of activity versus substrate concentration are exhibited by a. holoenzymes. b. Michaelis-Menten enzymes. c. allosteric enzymes. d. monomeric enzymes. e. isozymes.

Answers

Answer:

The correct answer is C

Explanation:

Allosteric enzyme is an enzyme that has more than one active site on the surface of the enzyme. Generally, the binding to one of these active sites affects the affinity of the other active sites on the enzyme; this causes the enzyme not to follow the Michaelis-Menten's enzyme kinetics. Thus, when the activity versus substrate is plotted on a graph, a sigmoidal curve shown instead of an hyperbolic curve (like other enzymes).  

What is the most likely explanation for the results in the graph?
O A. The plantlike organisms are using up all the oxygen that the fish
need.
B. The apple orchard releases toxic chemicals into the water of the
bay.
C. The nitrogen from the fertilizer makes it impossible for plants to
grow
D. The fish have migrated away from the bay to find warmer water,
SUBMIT

Answers

Answer:

B. The apple orchard releases toxic chemicals into the water of the  bay.

Explanation:

Option B is the correct answer. It is the most likely explanation for the results in the graph.

From the graph, we can see that the population of the fishes sharply dropped. Since the fertilizer is applied to the apple orchard and the orchard was planted beside the bay, during the rain it is possible that the water has washed some of the fertilizers into the bay. The chemicals used in making fertilizer are harmful and toxic.

This reveals that the toxic chemicals released from the apple orchard are responsible for the decline in the population of the fish.

What type of lipid is estrogen?
steroid
phospholipid
triglyceride
wax

Answers

Answer

The Answer is Steroid

Answer:

Steroid.

Steroids are different from other types of lipids because they do not contain any fatty acids.

Happy learning!

--Applepi101

A sensory neuron is bathed in tetraammonium chloride and MgCl2, and then the voltage clamp is changed from -70 millivolts to -5 millivolts. You would expect to see:

Answers

Answer: hello your question lacks the options related attached below is the complete question

answer :

A brief positive current inward due to sodium entry through voltage gated sodium channels ( Option 4 )

Explanation:

What you would expect to see following the bathing of a sensory neuron in  tetra ammonium chloride and MgCl2, given that the voltage clamp moves from -70 to -5 mV is A brief positive current inward due to sodium entry through voltage gated sodium channels.

This is because as Cl^- enters the cells it causes the entrance of  Na^+ into the cell ( i.e. voltage gated Na^+ ions channels will open ) hence the mixture will cause a lower negative membrane potential to be present .

A )
Three people are trying to move a box. Which set of forces will result in a net
force on the box of 20 N to the right?
ОА.
20 N
6N
6N
OB.
18 N
28 N
10 N
od od
O c.
口高
55 N
16 N
17 N
OD.
3 B
55 N
17 N 16 N

Answers

Answer:

20N coz the box is 20N and I'm sure it has no any force added on it

Each of the following will enhance and promote phagocytosis, except Multiple Choice tumor necrosis factor (TNF) and other cytokines. deposition of complement fragments on bacterial cells. interaction of TLRs and PAMPs. deposition of interferon on bacterial cells.

Answers

Answer:

The correct answer is: deposition of interferon on bacterial cells.

Explanation:

Phagocytosis is the mechanism by which a cell uses its plasma membrane to ingest a big particle, forming a phagosome within the cell. It's a form of endocytosis used by the immune system to eliminate pathogens such as bacteria and cell debris.

Phagocytosis can be enhanced through various ways when an infection is taking place in the body. For example, cytokines and TNF are secreted by different kinds of cells to stimulate this process - for these cytokines to be released, certain parts of the bacteria called PAMPs need to be recognized by specific receptors located in phagocytes and epithelial cells called TLRs. Another way to stimulate this mechanism is by depositing complement fragments on bacterial cells, which is done thanks to the Complement cascade, a system of great importance in the innate immune response against extracellular bacteria - these fragments will opsonize ("mark") the pathogens for the phagocytes to recognize them and engulf them.

Interferon, on the other hand, while hugely important on the immune response against viruses and other pathogens that infect our cells by entering them and using their organelles to replicate and translate proteins, is not an enhancer of phagocytosis, as it is mostly involved in the translation of genes that will lead to the infected cell's death.


Which geometric solid is the best model for these cells?
O A. A square pyramid
O B. A sphere
O c. A right circular cylinder
OD. A cube
SUBMIT

Answers

Answer:

D. A cube

Explanation:

Epithelium cells are a type of cell that has a simple cuboidal epithelium that consists of only a single layer of cells that are cube-like or cuboidal in shape.  These cells have large, spherical nuclei present in the center. These cells are cube-shaped cells

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Help me plz plz help me with this question Pop owns 87% of the common stock of Sugar. On December 31, 2017, Pop's Receivables include $296,880 that Pop advanced to Sugar. What portion (stated in dollars) of the intercompany receivable should be eliminated in preparing Pop's consolidated financial statements Early French traders in the Oklahoma Territory shipped their goods down the Arkansas River to the southern port ofA. New OrleansB. Houston. VicksburgD. Natchitoches Binary 10110 into oct & hex Binary 10001 into oct & hex with full process This year, Gogo Inc. granted a nonqualified stock option to Mrs. Mill to buy 10,000 shares of Gogo stock for $8 per share for five years. At date of grant, Gogo stock was selling on a regional securities market for $7.87 per share. Gogo recorded $26,700 compensation expense for the estimated value of the option. Five years after Gogo granted the option to Mrs. Mill, she exercised it on a day when Gogo stock was selling for $10.31 per share. Required: How much income must Mrs. Mill recognize in the year of exercise ABC Company uses the allowance method for estimating bad debts. Record the following journal entries: 12/31 ABC Company estimates that $5,000 of accounts receivable will be uncollectible. 3/5 ABC Company wrote off a $1,200 account of a customer, B. Brown. The Principal permitted......... The programme began. (put the correct conjuction in the blank to complete the sentence) HELPPPPP ASAP!!!! Thx!! and NOOO FILESSSS!! You have been tasked with advising the dictator of a nation over what he should do to increase the countries GDP. He suggests printing money and increasing the growth rate of the money supply. He wants to give this newly printed currency to his soldiers and best political supporters. You know this will not increase GDP in the long run because: I. Money is neutral II. Increasing the growth of the money supply only causes inflation in the long run III. He would only increase GDP in the long run if he distributed the money equally to all citizens IV. He would only increase GDP in the long run only if he printed a large enough sum of money a. I and II only Ib. II, and III only c. I, II, III, and IV d. III only See photo/ will give 10 points. please explain it step by step Can a photography expert tell me whats wrong with this picture? La probabilidad de que el estudiante A apruebe un examen de MM-100 es 0.6, la probabilidad de que apruebe un estudiante B es 0.4 y la probabilidad de que ambos estudiantes aprueben es 0.3. Cual es la probabilidad de que apruebe el estudiante B dado que el estudiante A aprueba.? In the diagram, what is the measure of angle 1 to the nearest degree?33 degrees55 degrees 75 degrees 105 degrees Cara got lost while hiking in the mountains. Fortunately for her, she had a GPS device and a satellite phone. When she reported her location, she indicated that it was 38N, 105W. What type of location did Cara give? Name the 5 systems of the human body. which are the four different methods of formatting text in libreoffice writer When simplified and written in standard form, which quadratic function is equivalent to the polynomial shown? In response to the Soviet Unions invasion of Afganistn the United States A. Ratified the SALT II treaty B. Boycotted the 1980 summer OlympicsC. Increased gain shipments to Afghanistan D. Stopped sending support to Afganistn vit chng trnh hon chnh cc yu cu sau:a. nh ngha hm c tn l PSTG(), c hai tham s kiu nguyn x v y hm tr v gi tr phn s x/y dng ti gin.b. Gi hm nh ngha trn trong hm main () in ln m hnh mt phn s x/y dng ti gin, vi x v y c nhp t bn phm.