What is a control group? Give an example.

Answers

Answer 1
A control group is a group that does studies or Experiments that does not receive treatment by researchers and is then used as a benchmark to measure how the other tested subjects do. Ex: Experimenting Arizonas and water together.

Related Questions

Need this asap!!!
The diagram below shows part of the process of DNA transcription. Which
mRNA base will go in location 3?
A.Uracil
B.Thymine
C.Cytosine
D.Adenine

Answers

Answer:B

Explanation:

Answer: as of april 25th 2023 its D

Explanation:

thats what i got and i was right also im pretty sure that they switch the order

PLEASE HELP me solve this!!!

Answers

Water is able to pass through the tubing.

The Lost generation was a group of writers,artist, and musicians, intellectuals who

Answers

Answer:

The Lost Generation refers to the generation of writers, artists, musicians, and intellectuals that came of age during the First World War and the “Roaring Twenties.” The unprecedented carnage and destruction of the war stripped this generation of their illusions about democracy, peace, and prosperity, and many ...

Explanation:

Which fossil fuel is made when plants from swamps are covered, pressed and heated for millions of
years?
A Coal
B Petroleum
C Natural Gas
D Nuclear

Answers

Answer:

petroleum i think , i may b wrong

Answer: A Coal

Explanation:

5. Bagaimanakah penggunaan plastik serai wangi ini dapat menjaga kesihatan?

Answers

Answer:

It has a lot of health benefits of fragrant lemongrass.

Explanation:

The use of this fragrant lemongrass take care of your health by preventing the growth of some bacteria and yeast. It also used to relieve the pain and swelling, reduce fever, improve sugar levels and cholesterol in the blood. It also have antioxidant properties which prevent the chances of diseases in the body. It is also used for the insects as an insect repellent, in short, fragrant lemongrass has a lot of health benefits.

When cells lose their ability to regulate the cell cycle, they can divide an accelerated rate and from a mass of cells. This mass cells is referred to as?

Answers

Answer:

A tumor

Hope this helps! :)



Which best matches objects that a scientist would include on a list describing a forest ecosystem?

Answers

Answer:

The interpretation has been outlined throughout the summary section below, as per the particular circumstance.

Explanation:

A forest or woodland habitat comprises a large field of soil that is covered by forest vegetation and inhabited by food creatures. Three major forest types occur, namely trees and shrubs plantations, mangrove swamps, as well as deciduous trees. This could be claimed that somehow natural vegetation has become an organic unit consisting of almost all of the aquatic biota, that is, have all organisms, creatures of that area that act throughout accordance because of all the resources of the atmosphere that seem to be non-living.

What is an ion pump??

Answers

Answer:

Active transporters or ion pumps are transporters that convert energy from various sources—including adenosine triphosphate (ATP), sunlight, and other redox reactions—to potential energy by pumping an ion up its concentration gradient.

Explanation:

A scientist is using a species of green algae to study the electron transport chain in photosynthesis. He uses a laser to inactivate all of chlorophyll A in the algae but leaves chlorophyll B intact (case 1). In a separate experiment, the scientist applies a chemical to the algae that inhibit PS I but do not affect PS II (case 2).
Which of the following results is expected?
A)in case 1, only PS I completely loses function; in case 2, no proton gradient is produced.
B)In case 1, only PS I completely loses function; in case 2, a proton gradient is still produced.
C)In case 1, both PS I and PS II completely lose function; in case 2, no proton gradient is produced.
D)In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.

Answers

Answer:

D) In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.

Explanation:

The light dependent reaction of photosynthesis, which produces the ATP and NADPH needed in the light independent stage of the process, includes complexes of proteins and pigments called PHOTOSYSTEMS. These photosystems (I and II) are key to the functionality of the light dependent reactions in the thylakoid.

The major pigment present in both photosystems is CHLOROPHYLL A, which absorbs light energy and transfers electrons to the reaction center. Chlorophyll B is only an accessory pigment meaning it can be done without. Hence, if all of the chlorophyll A is inactivated in the algae but leaves chlorophyll B intact as in case 1, both PS I and PS II will lose their function because Chlorophyll A is the major pigment that absorbs light energy in both photosystems.

In case 2, if PS I is inhibited and PS II is unaffected, a PROTON GRADIENT WILL STILL BE PRODUCED because the splitting of water into protons (H+) and electrons (e-) occurs in PSII. Hence, H+ ions can still be pumped into the inner membrane of the thylakoid in order to build a proton gradient even without the occurrence of PS I.


Recent research by Ravizza and colleagues suggests that students may spend as much as one-
typical class hour browsing the internet.
half
third
fifth
quarter
Need help on this question?

Answers

Answer:

one-half

Explanation:

According to that study done by Susan Ravizza and her colleagues students spent almost 40 minutes browsing the internet for nonacademic purposes. Since one class period is 100 minutes this would put it at almost one-half of the class period. They also found that the students used their phones for texting for around 27 minutes.

3.The two phases of photosynthesis are _____ reactions and _____ reactions._____. DOC 1
a.)glucose-dependent
B)glucose-independent
C.)light-independent
d.)light-dependent

Answers

Answer:

c

Explanation:

needed for

photosynthesis

Describe the anatomy of the typical long bone

Answers

Answer: HERE'S YOUR ANSWER!!!

Explanation:

Long bones are those that are longer than they are wide. The end of the long bone is the epiphysis and the shaft is the diaphysis. When human finishes growing these parts fuse together. The outside of the flat bone consists of a layer of connective tissue called the periosteum

Match the age group with the recommended therapeutic consideration. Place the letter of the age group in the column labeled matching thats is appropriate for the the therapeutic consideration

Answers

Answer:

E

Explanation:

e

When two species interact in a way that is beneficial to both species this is what kind of relationship?
A. Parasitic
B. Mutualistic
C. Commensal
D. Symbolic

Answers

Answer:

B

Explanation:

Mutualism is a relationship between two species in which both species benefit. Certain species of bacteria in your intestines form a mutualistic relationship with you.

Answer:

D. Symbolic

Explanation:

hope that helps you out love!! <3

FIRST ANSWER BRAINLYIEST
An experiment was conducted in which a purified protein from the body was exposed to a solution high in urea, and its tertiary structure was lost. When it was removed from the solution, the protein regained its original structure.

Which of the following describes what is occurring when the protein is exposed to the solution high in urea?

A. The side chains of the protein react with the urea, breaking bonds, which causes a conformation change.
B. The sequence of amino acids rearranges in a toxic environment, which causes a conformation change.
C. Urea reacts with the side chains of the protein sequence that causes a conformation change.
D. The side chains of the protein react with urea, forming new bonds that cause a conformation change.

Answers

Answer: A

Explanation: I believe its A cause it will cause the breakage of bonds.

Along with water conservation animals also have unique characteristics for

Answers

Answer:

They may be soggy and stinky, but they provide critical habitat for tons of plants and animals, help clean our water, control floods, and provide food for humans.

what is osmosis biology​

Answers

Answer:

osmosis is the movement of water molecules through a semi permeable membrane from a region of higher concentration to lower concentration

Answer:

osmosis is the movement of water molecules through a semi permeable membrane from a region of higher concentration to lower concentration

Explanation:

just did the question

What is the correct order for the levels of organization?
А
cell
tissues
organs
systems
organisms
B
cell
organs
tissues
organisms
organs
Oc
cell
systems
tissues
organisms
organs
cell
organisms
tissues
organs
systems

Answers

Answer: A

Explanation:

Answer:

i think A is true!

Explanation:

have a nice day:-)

PLEASE HELP!!!! Free earlobes are dominant over attached ear lobes in humans. Josiah's earlobes are free. Which of the following statements is true?

His genotype is ee.
His genotype could be Ee or EE.
His genotype must be EE.
There is no way to determine his genotype.

Answers

Answer:

EE and I'm just gonna say random thing cause I need 20 characters yes

Explanation:

because yes

Answer: could be EE or Ee

Explanation:

if something is domin over another, the capital comes first no matter what.

Carbon's valence is _____.

Answers

Answer:

Carbon's valence is ±4.

Explanation:

Valency corresponds to the group;

Group 1 has valency +1

Group 2 has valency +2

Group 3 has valency +3

Group 4 has valency ±4

Group 5 has valency -3

Group 6 has valency -2

Group 7 has valency -1

Group 8 has valency 0

The valency refers to how many bonds an atom will make in forming a molecule/compound;

This is also referred to as the combining power of an atom.

what is the white of the eye that is protective

Answers

Answer:

The sclera,  besides admitted as the whitten of your eye, in older writing, as the adventitia albuginea oculi, is the unintelligible hempen defensive outer layer of the human eyeball containing primarily collagen and any flexible fibre. Here's a visual reference:

Question 2 (1 point)
The theory that all of the continents were once in one location in the form of a
"supercontinent" is called...
Pygmalion
Patagonia
Pangea
Ponderosa

Answers

Answer:

Pangaea

Explanation:

continental drift

Alfred Wegener proposed that the continents were once united into a single supercontinent named Pangaea, meaning all earth in ancient Greek. He suggested that Pangaea broke up long ago and that the continents then moved to their current positions. He called his hypothesis continental drift.

Answer:

I think it's the 3 one

Explanation:


5. The image above is an example of which boundary?
a. Transform boundary
b. Convergent boundary
Divergent boundary
d. All of the above

Answers

Answer:

Divergent

Explanation:

Answer:

Im smart so the answer is "blah blah blah" saying the correct right answer

Explanation:

this is the question ​

Answers

Answer:

no

Explanation:

Answer:

see on the comment

Explanation:

sorry see on the previous comment I am in hurry sorry

(NOW PLSSS I’LL GIVE BRAINLIEST) Ally sees a photograph of a macaroni penguin that lives in South Georgia, a sub-Antarctic island. She reads more about these penguins
and learns that they mate for life. She knows that not all animals mate for life and that there are various combinations of mating systems,
Describe two mating systems, and explain why different systems exist.

Answers

Answer:

It depends on their life expectancy. There is an bird that is born and dies on the same day (sorry I cannot remember the name) so as soon as they can mate, they mate until death. Not every animal mate for life because they live longer. Animals that mate for life mate because they have a short life so they do this to continue the population.


Explain the difference between the calorie (lowercase C) and the Calorie (Capital C)?

Answers

calorie (with a lowercase “c”) is the energy needed to increase the temperature of water by one degree Celsius.

Calorie (uppercase “c”) is the equivalent to a kilocalorie (or 1000 calories)

SOMEONE PLZ HELP ME WITH THIS?!?!?

Answers

Table 1:

17 protons and 17 electrons

78 protons and 78 electrons

32 protons and 18 electrons

38 protons and 36 electrons

13 protons and 13 electrons

15 protons and 18 electrons

14 protons and 14 electrons

Table 2:

Ba2+ ion

Radon

Polonium

Tin

Selenium

Cesium

Magnesium Ion

IT WAS SUPER TOUGH!!!

Answer:

oh too hard

Explanation:

Create an illustration showing the application of Chargaff’s rule in the structure of DNA.

Answers

Just make an example of base pairing and then put a 10 beside the A a 10 beside the t a 40 beside the c and 40 beside the G

Birds belong to different species but share similar characteristics. What inference can be correctly drawn about this statement? (5 points)


Group of answer choices


All birds share the same habitat.


All birds produced similar offspring.


All birds reproduce with genetic variation.


All bird species adapt through evolution

Answers

Answer:

All bird species adapt through evolution

Explanation:

The correct answer would be that all birds reproduce with genetic variation and adapt through evolution.

Sexual reproduction causes genetic variation in sexually reproducing organisms due to crossing over and a random assortment of genes. Birds can only reproduce sexually and hence. they produce offspring that are genetically different but that might share many similar characteristics.

Evolution refers to the development of complex organisms from simple ancestral ones. Organisms change and evolve as they constantly try to adapt to their changing environments. Hence, organisms of the same species growing in a different environment might end up becoming different species as a result of adapting to their different environments, although they would still have some similarities to one another. In other words, evolution has a tendency to cause speciation.  

Which of the following is true about cells?
A.
In general, eukaryotic cells do not have a true nucleus or membrane-bound organelles, whereas prokaryotic cells contain both a nucleus and organelles enclosed by membranes.
B.
Neither prokaryotic cells nor eukaryotic cells ever contain both a true nucleus that is well-defined and organelles that are separated from the cytoplasm by membranes.
C.
Both eukaryotic cells and prokaryotic cells always contain both a true nucleus that is well-defined and organelles that are separated from the cytoplasm by membranes.
D.
In general, prokaryotic cells do not have a true nucleus or membrane-bound organelles, whereas eukaryotic cells contain both a nucleus and organelles enclosed by membranes.

Answers

Answer:

d

Explanation:

d 100% literally was just learning about this

The correct answer is D.
Other Questions
Can someone help plz? Jack and Jessica earned the same amount last week. Jack earned $18 per hour and had $41 taken from his check for taxes LaTeX: (18x-41)( 18 x 41 ). Jessica earned $15 per hour and had $17 deducted from her pay. How many hours did each work in order to get paid the same amount? Write the equation Solve for the number of hours FInd the area of the circle True or False when an object speeds up it gains momentum Which of the following accounts for why some American manufacturing companies have located factories in Mexico?Abundant capital resources,A supply of inexpensive laborFavorable climate conditions,Political stability in the region Answer the following question in 3-4 complete sentences.Examine the three pictures below.Determine what each is an example of, and any other information you can recall from the lesson or from your own knowledge of art and ceramics.Picture 1: A Greek soldier holding a small vase and a tray painted on a vase. The scene is mostly dark glaze with the man and other elements of the scene in light brown. Picture 2: A dragon painted on a white vase.Picture 3: Hands shaping a clay vase on a pottery wheel. Please help will mark brainliest and help with any hw!!!1.Why does Maria say that she likes her art class?2.What does she say about her PE class?3.Why does she like her math class?4.What class period is her English class?5.What time does Maria have art class? Which sentence needs a comma?How do you know when to start running?Whatever you do is fine with me.However the children didn't want to go.We went swimming after dark. A total of $5000 is invested: part at 5% and the remainder at 15%. How much is invested at each rate if the annual interest is $720? The sum of two positive numbers is 37, and their difference is 7. If x and y represent the unknown numbers, which twoequations belong to the system of equations that represents this situation? 1. Imagine that one of your friends hasgot a scholarship to Study in ukwrite a letter of congratulation tohimlher and wish him I her all thebest in the days to come. 1) Fairview and Abbots Rise are 5 in apart on a map that has a scale of 1 in : 18 mi. How far apart are the real cities? 2) A particular satellite is 12 ft wide. A model of it was built with a scale of 1 in :3 ft. How wide is the model? Please help me I have 4 more questoins The Treaty of Versailles ended World War I, but some of the terms of the treaty contributed to the beginning of World War II. Which was one of the terms of the treaty? what the slope of(12,7) (5,9) how does poe demonstrate or communicate the theme through the symbol of the beating heart What type of sentence is this?"I'll help you if you help me" 1.)simple 2.)Compound 3.)Complex 4.)Compound-complex 1. 2Al(s) + 3H2SO4(aq) Al2(SO4)3(aq) + 3H2(g) a. Determine the volume (mL) of 15.0 M sulfuric acid needed to react with 45.0 g of aluminum to produce aluminum sulfate. b. Determine the % yield if 112 g of aluminum sulfate is produced under the above conditions. Do you guys know this Mrs. Coughlin bought 2.25 pounds of turkey at $4.96 per pound and 0.75 pound of provolone cheese at $5.20 per pound. If Mrs. Coughlin gave the cashier $20, how much change will she receive? Why might the Grange movement have limited appeal in the United States? Identify the missing sides.4520:: 10:: 201/2:: 20210/3:: 20/3