A control can be best defined as:
A) a variable that is kept constant in an experiment
B) an experiment where the final results are known ahead of time
C) a hypothesis that regulates the results of an experiment
D) an experiment that is undertaken both in the field and in the laboratory
E) a variable that changes during the course of an experiment

Answers

Answer 1

Answer:

A) a variable that is kept constant in an experiment


Related Questions

Cancer is the uncontrolled growth of abnormal cells in the body. What can cause cancer to develop?
 Group of answer choices

A Disruption of the cell cycle

B Synthesis of a repressor protein

C Turning off genes during differentiation

D Structural genes that are active

Answers

Answer:

A

Explanation:

Disruption of the cell cycle means that cells can divide without order and accumulate genetic errors that can lead to a cancerous tumor.

Which of the following are consequences of the Dust Bowl of the 1930s?

I. Banks extended loans to farmers to help rebuild impacted area
II. New policies to prevent the dust bowl from happening again
III. Mass migrations and widespread poverty and lack of food

I only
III only
I and II
II and III

Answers

Answer:

I think it is the first one

Explanation:

I

What are the three layers that make up the body of a Cnidarian?

A. endoderm, mesoderm, ectoderm
B. endoderm, mesoglea, ectoderm
C. ectoderm, mesoderm, mesoglea
D. endoderm, mesoglea, epidermis

Answers

The endoderm is the inner layer ('endo' for 'within'), and the ectoderm is the outer layer ('ecto' for 'outer'). If there was a third layer it would be called the mesoderm, 'meso' for 'middle'. But cnidarians do not have this middle layer. Germ layers develop during gastrulation.

Answer:

endoderm, mesoglea, ectoderm

Explanation:

took the test

What is a similarity between phases of moon wi2 and wk 4

Answers

The similarity is that in both phases, the moon is only ¼ lit.
The moon has four phases, which happen in a fixed sequence. Each phase lasts one week and takes place as follows:

1st week - New Moon: At this moment, the part of the moon that is illuminated by the sun is not facing the earth. This prevents the moon from being seen.

2nd week - Crescent Moon: Only ¼ of the moon is being lit by the sun and facing the earth. Therefore, we can only visualize a small part of the moon.

3rd week - Full Moon: The face of the moon that is facing the earth is completely illuminated by the sun, which allows this entire face to be visualized.

4th week - Waning moon: Once again, only ¼ of the moon is lit by the sun and facing towards the earth.

The moon does not have its own light, but reflects the light received by the sun, for this reason, we cannot fully visualize the moon.

Path-breaking medical procedures have begun to pay attention to how microscopic entities aid or hinder bodily health. For example, fecal transplants have helped cure chronic digestive ailments of people who have suffered for years. These new procedures treat the body not as a separate, contained biological entity but as a complex: ___________

a. biomedicine.
b. anthrobiotic environment.
c. personal biosystem.
d. human microbiome.

Answers

Human microbiome that is as complex entity of all the microorganism found in the entire body structure of all living organism and the exact location where they are found.

Fecal transplants is idea for replenishing of good bacteria in the body due to resistance from prolong use of antibiotics. It is specifically for treatment of resistance of antibiotic therapy due C. difficile colitis.

In patient  above 65, infected with  C. difficile colitis and  with resistance to antibiotic especially oral vancomycin, fecal transplant is applied to  effectively cure this.

The transplant is conducted through the Colonoscopy. Where the fecal is discharge into the colon  as the Colonoscope is withdrawal from the colon

.

Since natural  good bacteria are present  in fecal and have no effect on the good bacteria in the body, this procedure increased the total number of bacterial(microbiota),by stabilizing the the microbiome and curing the patients.

more:https://brainly.com/question/25839750

1 Both viruses and cells have - A Lysosomes B Mitochondria C Chloroplasts D Proteins​

Answers

Explanation:

I think chloroplasts iam not sure

elect the correct statement regarding the lungs. Select one: a. The left lung is larger than the right lung. b. Only the right lung has a hilum. c. The left lung contains three lobes while the right lung contains two lobes. d. The left lung has more bronchopulmonary segments than the right lung. e. The left lung contains two lobes while the right lung contains three lobes.

Answers

Answer:

The right lung is smaller than the right to make room for the heart.

Explanation:

so the answer is A :)

The left lung contains two lobes while the right lung contains three lobes. Therefore option E is correct.

The statement that the left lung contains two lobes while the right lung contains three lobes is correct.

The right lung is divided into three lobes: the upper lobe, middle lobe, and lower lobe. On the other hand, the left lung is divided into two lobes: the upper lobe and lower lobe.

This anatomical difference is due to the position of the heart, which is located more towards the left side of the chest. The presence of an additional lobe in the right lung allows for a better fit around the heart.

Understanding the lobes of the lungs is important in assessing and diagnosing respiratory conditions and in surgical procedures that involve lung resection or transplantation.

Therefore option E The left lung contains two lobes while the right lung contains three lobes is correct.

Know more about lung:

https://brainly.com/question/18932342

#SPJ4


Salt water gargle can temporarily relieve a sore throat. One recipe calls for 3/4 teaspoon of salt in 1 cup of water. A second recipe calls for 1 2/3 teaspoon of salt in 2 cups of water. Which recipe will
taste saitier? Explain.

Answers

Answer:

I believe the one with 2 cups of water will be saltier

Explanation:

When you change the fractions to a common denominator, which is 12, you see the recipe with 1 cup should be half of the recipe with 2 cups. But the one with 2 cups is more than double the recipe with 1 cup.

What is the most likely conclusion the botanist can make about the virus that is found to be infecting her orchids

Answers

Answer:

botanist sees that some of her orchids with a black fungus growing on their leaves also have small rotting spots, while other orchids in the atrium that lack the fungus appear healthy. What is the most likely conclusion the botanist can make about the virus


Which organelle is only
found in plant cells?
A. chloroplasts
B. cell membrane
C. nucleus
D. mitochondria

Answers

Answer:

Chloroplasts Is the answer you are looking for.

Hope this helps!

The second atmosphere was created by volcanic activity. This atmosphere was rich
in oxygen
True
Or
False

Answers

they correct answer is the true option

PLEASE HELP WITH THIS ONE QUESTION
What systems supply food and oxygen needed for respiration?

A) excretory, digestive, and respiratory

B) excretory, respiratory, and cardiovascular

C) digestive, respiratory, and cardiovascular

D) digestive, excretory, and cardiovascular

Answers

What systems supply food and oxygen needed for respiration quizlet? The circulatory system carries nutrients (food/glucose) and oxygen to the muscles where the mitochondria can use the oxygen to break down the food to produce cellular energy.

I really need this question answered

Answers

Answer:

i don't know how i do ???????????????????

the two pathways fundamentally involved in the physiological response to stress are

A. HPA and CRH
B. SAM and PVN
C. SAM and HPA
D. CRH and ACTH

Answers

Answer:

SAM and HPA

Explanation:

The physiology of stress has two components. One in which is a fast response meditated by the SAM axis, and one which is a slow response meditated by the HPA axis.

this is my question ​

Answers

Answer: B

Explanation: im sorry if this is wrong

Have a great day.

it’s the first answer A

Question 1: One of the central themes in biology is how DNA, RNA, and proteins are related. Describe how genetic information flows between those types of molecules. Include the results of the processes of transcription and translation? ( Will Mark Brainliest if answered correctly. Do Not Repost Someone Else's Answer that is already on Brainly or any other websites please). ​

Answers

Answer:

Translation is the process by which mRNA is decoded and translated to produce a polypeptide sequence, otherwise known as a protein. This method of synthesizing proteins is directed by the mRNA and accomplished with the help of a ribosome, a large complex of ribosomal RNAs (rRNAs) and proteins. In translation, a cell decodes the mRNA’s genetic message and assembles the brand-new polypeptide chain. Transfer RNA, or tRNA, translates the sequence of codons on the mRNA strand. The main function of tRNA is to transfer a free amino acid from the cytoplasm to a ribosome, where it is attached to the growing polypeptide chain. tRNAs continue to add amino acids to the growing end of the polypeptide chain until they reach a stop codon on the mRNA. The ribosome then releases the completed protein into the cell.

Answer:

DNA is the code that stores all our genetic information. When making a protein, DNA has to go through transcription and then translation. In transcription, an the genetic code of DNA is copied to mRNA, with the aid of an RNA polymerase protein which attaches single RNA units to the mRNA strand as the RNA polymerase moves on the DNA. Note that instead the letter T, RNA contains U. This occurs in the nucleus. The mRNA travels to the cytoplasm to a ribosome. The RNA also trims itself, removing parts that it does not need, and keeping parts for translation. The ribsomes use tRNA attached to amino acids to assemble the protein chain and translate the mRNA into proteins. As the amino acid chain, or polypeptide forms, a protein comes to be. However, there may be mutations, resulting from translation or transcription and sometimes these mutations may cause harmful affects.

What type of molecule is represented by the model below?
Carbohydrate
Steroid
Fat
Nucleic acid

Answers

Fat it is ok I correct

HELP ME HELP ME HELP ME
The maximum amount of money a single farmer can earn through the farm bill is BLANK
per year.

Answers

Answer:

>100000$

Explanation:

It's depends upon the type of crop the farmer does.If the farmer does crops like corn, sugarcanes then he will gain lots of money.But if it's wheat and rice then he will gain a few pennies .

Answer:

The maximum amount of money a single farmer can earn through the farm bill is BLANK

per year.

Explanation:

➠ 100000$

Do I look beautiful for my interview ​

Answers

Answer:

yessir

Explanation:

thanks for the 8 pts

List one difference and one similarity between the reproduction processes
of a frog and a woman.

Answers

The Answer:In both the sexes of frog, each gonad remains attached to the kidney of same side. In human special ligaments attach the gonads to body wall. In males, testes is not abdominal in location; these are present in scrotal sac.

Appearance*In most frog species, the female is larger than the male, so frog size relative to a standard can be a good method of gender identification. In some species, the female frog is darker in color than the male, and in others, the male is darker.

Typically, frogs lay eggs. This process usually occurs through external fertilization, where the female releases her eggs from her body into water. Then, the male releases his sperm to fertilize them.In this case, the eggs are fertilized inside the female's body before they are released.

The diagram shows the reproductive system of a plant.



Which of the following best describes the interaction that occurs between a plant's reproductive parts during self-fertilization?


The diagram shows the reproductive system of a plant.



Which of the following best describes the interaction that occurs between a plant's reproductive parts during self-fertilization?


Pollen is released from the stigma and is transferred to the anther. A pollen tube grows down from the anther through the filament and fuses with the ovule, where the sperm fertilizes the egg.


Pollen moves from the ovule up through the style and is released from the stigma. The pollen is transferred to the anther, where the sperm fertilizes the egg.


Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches an ovule within the ovary where the sperm fertilizes the egg.

Answers

Pollen is released from the anther and is transferred to the stigma. It's the 3 rd answer that is correct

The correct answer is pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches an ovule within the ovary where the sperm fertilizes the egg.

This option correctly defines the interaction that occurs between a plant's reproductive parts during self-fertilization as it explains the pollination process and fertilization, when pollen grains are released then are transferred to the stigma the pollen tube is there that reaches ovule and the sperms fertilize an egg.

What is pollination?

Transfer of pollen from anther to the stigma of plants. Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches an ovule within the ovary where the sperm fertilizes the egg.

Thus it is clear that the answer explained above is correct describes the interaction that occurs between a plant's reproductive parts during self-fertilization.

To know more about pollination refer to the link ;

https://brainly.com/question/26568008

can someone give me the answers and teach me how to do this?

Answers

Answer:

a) B. b

B. BB. Bb

b Bb. bb

b) H. H

h Hh Hh

h Hh. Hh

c) X. x

x Xx. xx

x Xx. xx

process of diffusion​

Answers

A diffusion process is a solution to a stochastic differential equation

6. The number of penguins in the north pole has been decreasing steadily by 5% every year.
Last year there were estimated to be 235,000 left in the wild. How many are there going to be
this year if the trend continues.

Answers

Answer:

Explanation:

223,250 Penguins

Which is the advantage of water's heat capacity?

Answers

Answer:

helps regulate the rate at which air changes temperature

Usually a high specific heat capacity is an advantage as more energy is required to cause the substance to boil.

What would happen if any of the biogeochemical cycles would break

Answers

Answer:

Excess phosphorus is polluting our environment while, ironically, mineable resources of this essential nutrient are limited. Globally, oxygen-depleted marine coastal 'dead zones' caused by nutrient-stimulated algal blooms continue to expand

Explanation:

Asexual reproduction takes place through fragmentation in: a) Potatoes
b) ferns
c) yeas
t d) spirogyra​

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The Correct choice is ~

[tex] \sf d. \: spirogyra[/tex]

Salt water gargle can temporarily relieve a sore throat. One recipe calls for 3/4 teaspoon of salt in 1 cup of water. A second recipe calls for 1 teaspoon of salt in 2 cups of water. Which recipe will taste saltier?

Answers

Answer:

The first solution will, since the salt to water ratio contains more salt.

Explanation:

The salt will cause the recipe to taste saltier, since the salt is what makes things salty.

Why can't we just use centuries, decades

Answers

We can? Weeee in them rn

True or False. There are only two broad categories called kingdoms.

Answers

Living things are divided into five kingdoms: animal, plant, fungi, protist and monera. Living things are divided into five kingdoms: animal, plant, fungi, protist and monera.

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