why might a scientist repeat an experiment if she/he didn't make a mistake in the first one? experiment are repeated to

A) make sure she/he gets identical results.
B) see if any portion can be skipped or ignored.
C) prove that your results were incorrect the first time.
D) check to see if the procedure was correct and nothing was left out.

Answers

Answer 1
The answer is Ahgtbfgc bfhhv chignbvfffffyj
Answer 2

Answer:

D) check to see if the procedure was correct and nothing was left out.

Explanation:


Related Questions

which of the following is a liquid at room temperature?

A. milk
B. jello
C. helium
D. popcorn

will give brainliest

Answers

Answer:

I'm thinking milk

which of the following is a gas at room temperature

A. jello
B. milk
C. helium
D. popcorn

Answers

Answer is c , good luck <3

Which of the following questions about genetic diversity could most appropriately be answered by analysis of the model in Figure 1 ?

Answers

Answer: (C) How does the independent assortment of the two sets of homologous chromosomes increase genetic diversity?

Explanation:

What type of rock is Mount Kinabalu made of?

Answers

It is made of ultra basic rocks:))

Each of the following traits is found in a bipedal hominin EXCEPT: Group of answer choices A c-shaped spine. A bowl shaped pelvis. A femur that angles inwards at the knee. A non-divergent hallux.

Answers

Answer:

A c-shaped spine.

Explanation:

The correct answer is - A c-shaped spine.

Reason -

A c-shaped spine is a trait of Quadri-pedal spine not of bipedal spine.

GIVING 2000 PTS AFTER U ANSWER IT MUST BE CORRECT A stalled front (not moving) that may bring many days of clouds and precipitation is a(n)____________.
Question 1 options:

cold front


warm front


occluded front


stationary front

Question 2 (1 point)
Saved


An air mass, shown in the image above, that forms over parts of Mexico, Texas, and Arizona will be a _______.

Question 2 options:

continental polar air mass


continental tropical air mass


maritime polar air mass


maritime tropical air mass

Question 3 (1 point)
Saved
Prevailing westerlies are global winds responsible for most weather in our region of the United States moving from west to east.

Question 3 options:
True
False
Question 4 (1 point)
What causes a land breeze at the beach?

Question 4 options:

At night, cooler air over land replaces rising warmer air over water.


At night cooler air over water replaces rising warmer air over land.


During the day, cooler air over land forces warmer air over water to rise.

Question 5 (1 point)


Based on the weather map above, which statement is true based on the weather map?

Question 5 options:

A warm front is moving toward South Carolina.


A warm front just passed through South Carolina.


It is currently raining in South Carolina.


The next few days in South Carolina should be colder.

Question 6 (1 point)
Saved


Which type of local wind is illustrated in the image above?

Question 6 options:

Global wind


warm wind


land breeze


sea breeze

Answers

Answer:

1) stationary front  2) Continental tropical air mass 3) False, that would be trade winds 4) At night cooler air over water replaces rising warmer air over land. (option b) 5) there aint no map mayne 6) again aint no picture

Explanation:

jus trust. looked it up

Stem cells can make many copies of themselves through the process of ________. This process results in daughter cells that are ____________ the parent cells. The unspecialized cells can become specialized through the process of _______________.

Answers

Answer:

Explanation:

1. mitosis

2. clones

3. differentation

Stem cells can make many copies of themselves through the process of mitosis, which is a type of cell division.

What are stem cells?

Stem cell are undifferentiated cells that produce specialized cells and their initial division results in daughter cells that are clones of the parent cells.

The unspecialized cells can become specialized through the process of differentiation.

In conclusion, stem cells can make many copies of themselves through the process of mitosis.

Learn more on stem cells here:

https://brainly.com/question/18243320

#SPJ2

Briefly explain the reason that Sedlak gives for water shortages.

Answers

Answer:

There are many factors that contribute to this. One being the population as well as climate. ... The population has clearly increased dramatically, which means more people need access to water to survive. Another impact is simply the climate change.

If 2 white dogs mate and produce a brown puppy what color is dominant

Answers

Answer:

When dogs breed, the mother and father each randomly contribute one allele from ... The production of melanin is not always at a steady rate so the tip of a dog's hair ... There are two brown alleles, B (dominant brown) and b (recessive brown). ... color patterns such as piebald, particolor, and extreme white which produce ...

Explanation:

Answer:

well the brown was probably recessive so the white is dominant

Explanation:

I'm not sure

Protects the seed. Grows around the seed.

Answers

What is the question?

In grapes, the wild-type DND1 gene confers resistance to attain viruses, and strains are susceptible to viruses. The EDS1 gene confers resistance to powdery mildew, a type of fungal infection. The genes are linked, eight map units apart on chromosome 17. A third gene, IR 1. imparts resistance to certain lepidopteran leafminers and is 10 map units from EDS1 and 18 map units from UNDI The abserved double crossover rate is 0.3%. What is the interference?
a. 37.5%
b. 25.%
c. 62.5%
d. 75%

Answers

Answer:

I = 62.5%

Explanation:

Available data:

the wild-type DND1 gene confers resistance to attain viruses. Strains are susceptible to virusesThe EDS1 gene confers resistance to powdery mildew, a type of fungal infection The genes are linked, eight map units apart on chromosomeA third gene, IR 1. imparts resistance to certain lepidopteran leafminers and is 10 map units from EDS1 and 18 map units from DNDIThe observed double crossover rate is 0.3%

According to this information, we can picture the position of each gene in the chromosome

---DND1----------------------EDS1-----------------------------------IR1---

       ║---------- 8MU---------║------------------10MU-------------║

       ║------------------------------18MU------------------------------║

The map unit is the distance between the pair of genes for which one of every 100 meiotic products results in a recombinant product.

1% of recombinations = 1 map unit = 1cM. The maximum recombination frequency is always 50%.

So, if we know the distances between genes, we know their recombination percentages.

DND1-EDS1 = 8 MU = 8% recombinationEDSI-IR1 = 10 MU = 10% recombination

To calculate interference, first, we need to know the coefficient of coincidence, CC.    

CC= observed double recombinant frequency/expected double recombinant frequency

Note:

observed double recombinant frequency=total number of observed double recombinant individuals/total number of individuals expected double recombinant frequency: recombination frequency in region I x recombination frequency in region II.

CC= (0.003)/(0.08 x 0.1)

CC=0.003/0.008

CC=0.375

CC = 37.5%

The coefficient of interference, I, is complementary with CC.

I = 1 - CC

I = 1 - 0.375

I = 0.625

I = 62.5%

   

what are bioactive molecules

Answers

Answer:

Bio-active molecules that are basically molecules that are which is produced as a result of microbial activities. These molecules can be in different forms such as enzymes, chemical compounds and organic acids. Some examples are proteases, streptokinases, lipases and pectinases.

I hope this helps you

Bio-active molecules are the molecules are which are produced as a result of microbial activities. They can be in the form of enzymes, chemical compounds and organic acids. Examples include proteases, streptokinases, lipases and pectinases.

Two types of bone markings are:
A) Projections and depressions
B) Indentations and holes
C) Depressions and bumps
D) None of these

Answers

A. Projections and Depressions :)

Anthony Hoffnagle was well until after 6 months of age when he was hospitalized for pneumonia 5 times in the same year. A consultation with an immunologist revealed normal numbers of B cells and T cells, slightly elevated IgM, and a marked decrease in IgG and IgA. He was diagnosed with X-linked hyper IgM syndrome. Based upon the information in the previous questions, what is the most important gene that might be defective that would result in lack of class switch to IgG or IgA

Answers

Answer:

CD40L  

Explanation:

The CD40 ligand (CD40L) protein is a transmembrane glycoprotein which is expressed on activated T cells and belongs to the tumor necrosis factor (TNF) superfamily. The hyper IgM syndrome is caused by mutations in the CD40L gene, where the defective protein can no longer bind CD40 on antigen-presenting cells. The X-linked Hyper IgM syndrome is characterized by abnormal levels of immunoglobulins, i.e., low levels of IgG and IgA, and increased/normal levels of IgM. Because CD40L gene is located on the X chromosome, this disorder is observed much more frequently in males than in females.

What are the reactants of glucose?
1 point

Answers

Glucose and oxygen are the reactants and the end products are carbon dioxide and water with the liberation of energy in form of ATP.

Answer:

Explanation:

Food (glucose)

A man with blood type AB marries a woman who is heterozygous for B blood. Among the
blood types of their children, how many different genotypes and phenotypes are possible

Answers

They would get type b blood and a 50% chance in get A or AB blood type

1. A disease kills an organism that is a secondary consumer in a food web, and the organism
decays. What is the next thing that happens to the energy in the organism's body?
A. It is transferred to producers.
B. It is transferred to decomposers.
C. It is transferred to other secondary consumers.
D. It is transferred to tertiary consumers.

Answers

Answer:

it is transferred to producers

Explanation:

it is transferred to the producers

Beyond Dominant and Recessive
Decide which type of inheritance best matches the definition.
6. Multiple genes interact to determine the phenotype.
7. Two alleles are dominant, resulting in offspring that show both
phenotypes.
8. One gene has several different forms, resulting in more than two
phenotypes.
9. Two alleles are neither completely dominant nor completely
recessive, resulting in a phenotype that is a combination of the two

Answers

Answer:

6. Polygenic inheritance

7. Co-dominance

8. Multiple allele

9. Incomplete dominance

Explanation:

This question depicts non-mendelian inheritance patterns i.e. inheritance that do not conform to Mendel's principle of inheritance. They are as follows:

6. POLYGENIC INHERITANCE is a type of inheritance in which multiple genes i.e. more than one gene, interact to determine the phenotype of an organism.

7. CO-DOMINANCE is a type of inheritance pattern in which two alleles of a gene are dominant, resulting in offspring that show both phenotypes. Example is blood group A and B in humans.

8. MULTIPLE ALLELISM is an inheritance pattern involving one gene having several different forms (alleles), resulting in more than two phenotypes. Example is the blood type in humans.

9. INCOMPLETE DOMINANCE is a type of inheritance in which two alleles of a gene are neither completely dominant nor completely recessive, resulting in a phenotype that is a combination of the two. Example is ROAN color in cattle

Following are the answers:

6. Polygenic inheritance

7. Co-dominance

8. Multiple allele

9. Incomplete dominance

Polygenic inheritance: Multiple genes interact to determine the phenotype.

Codominance: Two alleles are dominant, resulting in offspring that show both phenotypes.

Multiple alleles: One gene has several different forms, resulting in more than two phenotypes.

Incomplete dominance: Two alleles are neither completely dominant nor completely recessive, resulting in a phenotype that is a combination of the two alleles.

Learn more about polygenic inheritance, here:

https://brainly.com/question/30458555

#SPJ6

Why does your body temperature increase when you have a fever? *

Answers

Answer:

Fevers are caused by chemicals in the bloodstream called pyrogens. Pyrogens make their way to the brain's hypothalamus, which is in charge of regulating body temperature. When those pyrogens bind to certain receptors in the hypothalamus, the body temperature rises.

Explanation:

The human eye is filled with a clear fluid called the aqueous humor. The production, flow, and drainage of this fluid is an active and continuous process which keeps the healthy eye at an intraocular pressure of about 15 mmHg. If the drainage becomes obstructed, fluid accumulates in the eye resulting in an increase of this pressure to the 25 to 50 mmHg range and the clinical onset of glaucoma. What is the pressure of 30 mmHg expressed in units of psi (pounds per square inch)

Answers

Answer:

The pressure will be "0.579 psi".

Explanation:

The given value is:

Hg,

= 30 mm

Density of mercury (Pm),

= 13600 kg/m³

As we know,

1 psi = 6895 N/m²

Now,

The pressure will be:

=  [tex]30 \ mm \ of \ Hg[/tex]

=  [tex]30\times 10^{-3}\times Pm\times g[/tex]

On substituting the given values, we get

=  [tex]30\times 10^{-3}\times 13600\times 9.8[/tex]

=  [tex]3,998,400\times 10^{-3}[/tex]

=  [tex]3,998.4 \ N/m^2[/tex]

So,

The pressure of 30 mm of Hg will be:

=  [tex]\frac{3,998.4}{6895}[/tex]

=  [tex]0.579 \ psi[/tex]

How many million years ago did all of North America move north of the Equator?

Answers

Answer:

not sure tbh

Explanation:

...................... Sorry I'm running low on points

What causes coral bleaching?(1 point)

High water temperatures boil coral polyps, causing them to turn white in color.

Water acidity and high water temperatures make coral polyps more prone to infection, causing them to turn white in color.

High water temperatures and water acidity cause coral polyps to expel algae, causing them to turn white in color.

Water acidity causes coral polyps to lose their photosynthetic abilities, causing them to turn white in color.

Answers

high water temperatures and water acidity cause coral polyps to expel algae, causing them to turn white in color

High water temperatures and water acidity cause coral polyps to expel

algae, causing them to turn white in color.

What is Bleaching?

This is the process in which a surface is whitened by the removal of its

natural color.

In coral polyps which are found in water, they experience bleaching

through high water temperatures and water acidity.

Read more about Bleaching here https://brainly.com/question/1222498

I am one of four main types of tissue. I join, protect, and support organs. What kind of tissue am i
Epithelial tissue

Muscle tissue

Nervous tissue

Connective tissue

Answers

Answer:   The connective tissue

Explanation:

Organisms must have which of the following to make proteins and amino acids

Answers

Answer:

The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen. Hope it helps

3 type Leaves! DESPREATE HELP
make sure to say what type of tree they come from (instructions from teacher cant be from a a bush ONLY TREE)
explain the shape the margin and the venation
name 3! if correct ill give brainily thing a thanks and 5 stars! dont forget the margin and venation of the leave please

Answers

Answer:

Birch leaf: looks kind of like a triangle with spiky grooves, serrate margin.

Oak leaf: Looks like a feather, ondulate (wavy)margin.

Horse chestnut: Looks like a teardrop, entire margin.

WILL GIVE BRAINLIEST!

Why do you build up a static charge when you rub your shoes across the carpet?

A. Electrons rub off of your shoes and onto the carpet

B.Electrons rub off of the carpet and onto your shoes

C.Protons rub off of your shoes and onto the carpet.

D.Protons rub off of the carpet and onto your shoes.

Answers

Answer:

B.Electrons rub off of the carpet and onto your shoes

Explanation:

Smooth muscles are found mainly in the _______
A)Walls of the cardiac muscles
B)Walls of the chest
C)Walls of hollow organs
D)Walls of the lumbar spine

Answers

Answer: A wallah of the cardiac muscles

I hope this helps you with your stuff !

Why would an aquatic organism need a contractile vacuole?

Answers

Answer:

Contractile vacuoles protect a cell from absorbing too much water and potentially exploding by excreting excess water. Wastes, such as ammonia, are soluble in water; they are excreted from the cell along with excess water by the contractile vacuoles

Explanation:

Hope it helps!

If you dont mind can you please mark me as brainlest?

The Earth's orbit around the Sun is

A. circular

B. straight

C. eliptical


Choose the correct answer.''

Answers

I think it’s Circular

Answer:

yeppers circular please believe

In a wave, what is a distance between two crests or two troughs called?
is the distance between two crests or two troughs.

Answers

Answer:

the distance between 2 crests & 2 troughs is known as wavelength

Explanation:

Answer:

Wavelength

Explanation:

PLATO trust me

Other Questions
Pls help!! 20 points Plz help me out and hurry plz PLEASE HELP, WILL MARK BRAINLESTRead the third paragraph from Muir's essay "Calypso Borealis" and answer the question.[3] But when the sun was getting low and everything seemed most bewildering and discouraging, I found beautiful Calypso on the mossy bank of a stream, growing not in the ground but on a bed of yellow mosses in which its small white bulb had found a soft nest and from which its one leaf and one flower sprung. The flower was white and made the impression of the utmost simple purity like a snowflower. No other bloom was near it, for the bog a short distance below the surface was still frozen, and the water was ice cold. It seemed the most spiritual of all the flower people I had ever met. I sat down beside it and fairly cried for joy.Select two words or phrases from the text that demonstrate Muir's scientific approach to nature. "most bewildering" "bed of yellow mosses" "small white bulb" "utmost simple purity" "cried for joy" A railroad car moving at a speed of 3.46 m/s overtakes, collides and couples with two coupled railroad cars moving in the same direction at 1.40 m/s. All cars have a mass of mass 1.6 104 kg. Determine the following.(a) speed of the three coupled cars after the collision (Give your answer to at least 2 decimal places.) m/s(b) kinetic energy lost in the collision J HELP I'M STUCK WILL GIVE BRAINLIESTThe DNA strand above is cut with a restriction enzyme at the restriction site 5-GAATTC-3. The enzyme makes a staggered cut between the two Ts of the restriction site. Based on this information, write the DNA sequences of the resulting DNA fragments. ATCGAATTCGTCGCTGAATTCGCCTAACTCCCGTGCCTATATATGGAATTCGCT-3 TAGCTTAAGCAGCGACTTAAGCGGATTGAGGGACGGATATATACCTTAAGCGA A slave from Missouri who tried to sue for his freedom A. Frederick DouglasB. Stephen Douglas C. Harriet Tubman D. Dred Scott What distinguishes an element from all other elements What is the mean ?I kinda need help Can you understand this from japanese? What line in the sky is created by our revolution around the Sun? Please help me with this problem I will give brainliest find the surface of the rectangular prism please help its do now...... If x =3, y = -2 and z = 6, find the value of 7xyz help me please, brainliested ;) Last year Harrington Inc. had sales of $325,000 and a net income of $19,000, and its year-end assets were $250,000. The firm's total-debt-to-total-capital ratio was 15.0%. The firm finances using only debt and common equity and its total assets equal total invested capital. Based on the DuPont equation, what was the ROE? Do not round your intermediate calculations. Chinas river system is very similar to which other place? Please write the name of the Civilization. Elle sappelle comment, la fille _____ amie de Habib? answer choices (de + l') what is 37 feet into yards and feet 3. (2 marks) A real estate agent has 8 keycards to open new model homes. Only one keycard will open any specific model home. If 40% of these homes are usually left unlocked, what is the probability that the real estate agent can get into a specific home if the agent chooses 3 keycards at random before leaving the office