A student will measure and record the growth (in height) of two flowering plants every other day for 20 days. Each plant will receive 200mL of water each day, but only one plant will receive 10mL of fertilizer. whats the independent variable, dependant variable, and the standardized variable?

Answers

Answer 1

Answer:

The correct answer is -

the independent variable - if fertilizer added or not,

the dependant variable - the height of the plant and

the standardized variable - 200ml water

Explanation:

In this study, the student wanted to see the effect of the fertilizer on the growth of the plant so the independent variable is the treatment of the fertilizer as manipulated or the independent variable is the factor which is affected or changed purposely during an experiment while other variables remain constant.

The dependent variable is the factor that is based or depends on the independent variable and measured to see the effect which is the height of the plants in this case.

The standardized or the control variable is the variable that remains constant throughout the experiment, 200 ml water treatment is the control variable in this experiment.


Related Questions

different objects in space emit wavelengths of electomagnetic radiation use the chart to match each wavelengths to correct region of the spectrum

Answers

Answer: In order of increasing frequency and decreasing wavelength these are: radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.

Explanation:

how the illustration and student observations support the cell theory?

Answers

Answer:

By observing the organism under microscope.

Explanation:

Both the illustration and student observations support the cell theory because  with the help of microscope. If the student observe a material, he will be able to see small compartment from which the material is formed. Cell theory states that all living organisms are composed of small units called cells. The student also see the organisms under the microscope and find out that the organism is made of cells.

10. True or false: During the light-independent reactions, ATP and NADPH are used to make glucose.

True
False

Answers

Answer:

true

Explanation:

i think not sure

What was the total maginification (25 points)

Answers

Answer:

a

Explanation:

The hypothalamus:_______

a. initiates voluntary movements.
b. functions in speech recognition
c. controls autonomic nervous system and regulates thirst
d. is regulated by the pituitary gland.
e. plays a very minor role in the maintenance of homeostasis

Answers

Answer: Option C..

controls autonomic nervous system and regulates thirst

Explanation:

Hypothalamus controls autonomic nervous system and regulates thirst because it is above the brain stem and it receive autonomic regulatory signals or information , then it then act to integrate and controls autonomic nervous system. The autonomic nervous system help to regulate different types of body functions like sexual arousal, heart rate, pupilatory rate, digestion rate , respiratory rate e.t.c.

A role can be defined as

the enduring behaviors, ideas, attitudes, values, and traditions shared by a group of people and transmitted from one generation to the next.
understood rules for accepted and expected behavior.
feelings that predispose us to respond in a particular way to objects, people, and events.
the set of prescribed behaviors that are associated with a particular social position.

Answers

Answer:

The set of prescribed behaviors that are associated with a particular social position.

Explanation:

A role in a society is a behavior that we do as part of our position that we have in that society. There are many roles that we do on a daily basis. These can be gender roles, parental roles, the roles we do at a given job position, and many others. We all know the role of a firefighter because we know what to expect from that role in society.

Ringer’s solution is often given intravenously to patients experiencing dehydration. It contains water, 131mMol/L sodium, and 111mMol/L chloride ions. Why wouldn’t distilled water be used? Why doesn’t the solution contain higher amounts of sodium, chloride, and other electrolytes?

Answers

Answer:

It is important to maintain the osmolality of the blood (plasma) at an appropriate level to prevent osmosis into and out of cells by keeping the intra- and extracellular fluids isotonic;

Too much water entering a cell can lead to lysis and too much leaving a cell results in shrinkage, both of which are detrimental.

Ringer's solution seems to be osmotic pressure to animal bodily excretions. Distilled water has the highest moisture contents but lacks critical minerals.

Whenever the individual receives intravenously liquids, a huge volume of pure water has been injected into the vein, causing hypotonicity of blood cells as well as worsening dehydration.Ringer's solution would be used to replenish electrolyte balance. If somehow the solution has a high concentration of sodium, calcium ion, as well as electrolytes, it'll no longer be isotonic towards the participant's bodily fluid.

Thus the response above is correct.

Learn more:

https://brainly.com/question/13973173

Cognitive diversity refers to the similarities in viewpoints and methods in problem solving.


Please select the best answer from the choices provided

T
F
THE ANSWER IS FALSE!!!

Answers

Answer:

FALSEEEEEE.    I took the test.

                                 

Answer:

false

Explanation:

What do you think is going to happen to this country's population over the next 20 years?

Answers

Answer:

The second answer

Explanation:

I believe that the population will increase for some point on time and then decrease then increase again and the cycle goes. But who know things might change over time. But I believe the answer is A

Song learning in developing songbirds is impaired by lesions of the _______, but lesions in this location have no effect in adulthood.

Answers

Answer:

The question is incomplete because the options are not given but the options are gotten from another website.

a. LMAN.

b. H VC.

C. R A.

d. Hippocampus

Explanation:

It is LMAN leison because lateral magnocellular nucleus of the anterior nidopallium (LMAN) function in producing modulatory during song development in song birds .

Lesion means damage in organ or tissue that function

A damage in the organ or tissue of LMAN cause difficult in song learning development in song birds because the LMAN will not be able to perform it's function due to those damages and there is less song variability.

Complete the following table, referring to the original gene sequence below. Use the codon chart in your notes to help.
Original gene sequence: TAC – CAA – TGT – ATC

Answers

Answer:it’s right

Explanation:

Rhonda visits her MD because she is feeling constantly tired. After a thorough case
history involving questions about her diet, her MD takes a blood sample. Results
indicate that her hemoglobin level is at 7g/100ml of blood (normal levels are 12-
18g/100ml of blood).
Based on the results of Rhonda's bloodwork:

a) What condition might Rhonda have ?

b) Why would Rhonda's low hemoglobin level cause her to feel tired ?

c) Rhonda's MD asked about iron intake (eg. from meat) in her diet? Explain why.

Answers

Answer:

a) Rhonda might have anemia

b) Rhonda feels tired because her blood is unable to transport enough oxygen

c) Iron is required by the blood cells for the formation of hemoglobin

Explanation:

a. A low hemoglobin level is referred to as anemia or low red blood count. From her blood test results, Rhonda has below normal levels of hemoglobin. This indicates she might have anemia.

b) The primary work of hemoglobin in blood is to transport oxygen from the lungs to the cells that need it for metabolic activities. When the ability of the blood to transport blood is impaired due to low hemoglobin levels, fatigue and tiredness sets in since enough oxygen is not present for cellular respiration and production of ATP.

c) Hemoglobin is an iron-rich protein that helps red blood cells carry oxygen from the lungs to the rest of the body. If iron intake is not sufficient, anemia could result. Therefore, it is important that iron-rich meals are incorporated into our diet.

So her MD would need to know how much of iron she has been having in her diet.

Kola Superdeep Borehole

Answers

Answer:

?????

Explanation:

i completely agree! Thank you for letting this information dig deep into my brain and you sir, have made me a more well rounded individual and i see a clear path ahead of you in the future my good friend.

Eukaryotic cells do NOT have a cytoplasm true or false

Answers

Answer:

False

Explanation:

False is the correct

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.

5. [1 mark]

Which method provides biochemical evidence that cells have begun to differentiate?

A. Observation with a light microscope

B. Observation with an electron microscope

C. Examination of the DNA sequence

D. Analysis of the proteins

Answers

Answer:

D. Analysis of the proteins

Explanation:

According to the research, the analysis of the proteins provides biochemical evidence that cells have begun to differentiate.

What is the analysis of the proteins?

It is a method that measures the set of different proteins present in the blood.

The proteins that regulate cell differentiation processes are called cyclins that help control cell multiplication and cyclin-dependent protein kinases.

Therefore, we can conclude that according to the research, the analysis of the proteins provides biochemical evidence that cells have begun to differentiate.

Learn more about proteins here: https://brainly.com/question/2121990

#SPJ2

When would the carrying capacity of an area be most likely to change?

when resources remain the same


after a fire or flood


if emigration takes place

for all species at the same time

Answers

Answer:

Required Answer:-

An increase in population, resources, natural disasters, and catastrophic events. Weather, natural disaster, human activity. As a population reaches its carrying capacity, resources become more scarce.

The stage of the demographic transition that shows the most population growth is the

Answers

Answer:

transitional stage because it has high birth rate and low death rate probably due to war or domestic problems

Photosynthesis is an important process that converts light energy into what
energy
A
Chemical
B
Nuclear
С
Water
D
Thermal

Answers

B Nuclear is the answer

Answer:

[tex] \boxed{ \sf{ A. \: chemical}}[/tex]

Explanation:

Photosynthesis is an important process that converts light energy into chemical energy.

Hope I helped!

Have a wonderful time !

~TheAnimeGirl

Why is an energy pyramid shaped like a triangle with the point on top

Answers

Answer:

The shape of the energy pyramid shows that there is enough biomass energy contained in the primary producers at the bottom to support the predators at the top, even though energy is lost at each level.

Explanation:

pls mark me brainliest! :)

Answer:

The shape of the energy pyramid shows that there is enough biomass energy contained in the primary producers at the bottom to support the predators at the top, even though energy is lost at each level

Explanation:

plss select me as brainliest :D

Where are steroid receptors generally located and where do they bind the steroid hormone once it enters the cell:____________
A. They are located and bind the steroids in the middle of the cell membrane
B. They are located and bind the steroids in the cytoplasm
C. They are located and bind the steroids on the intracellular membrane surface
D. The receptors are located in the cytoplasm but they bind their ligands in the lysosomes.

Answers

Answer: B. They are located and bind the steroids in the cytoplasm

Explanation: Steroid hormones are a class of organic compounds, typically lipids. They bind to protein receptors in the cytoplasm or nucleus of the target cell and thus, their receptors are located inside target cells where they function as ligand-dependent transcription factors. This is to say that hormone-receptor complex formed on binding to DNA activates specific genes that increases production of proteins.

Which of the following best explains how the cell theory was developed?


Cells are so diverse that scientists had to come up with an explanation that would apply to all types of cells.


Mutations occur and cause changes in cells so scientists could not develop a law that would apply to all forms of cells.


PLZ HELP ASAP IT IS A TEST!!!!


The cell theory is a well-tested explanation of observations that was formed from the contributions of several different scientists.


The cell theory was developed through extensive library research because it would be impossible to test all living things for the presence of cells.

Answers

Answer: C

Explanation:

The statement 'the cell theory is a well-tested explanation of observations that was formed from the contributions of several different scientists' BEST explains how the cell theory was developed.

The cell theory is a widely accepted theory that represents the foundational basis of cellular biology.

This theory (cell theory) was initially developed by Matthias Schleiden and Theodor Schwann in 1838.

The cell theory states that:

All living things are composed of cells. The cell is the basic structural and organizational unit of life.All the cells originated from pre-existing cells.

In conclusion, the statement 'the cell theory is a well-tested explanation of observations that was formed from the contributions of several different scientists' BEST explains how the cell theory was developed.

Learn more in:

https://brainly.com/question/1468725

The energy stored in bonds between atoms is:

mechanical energy
chemical energy
electrical energy

Answers

Answer:

Chemical energy

Explanation:

Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy.

The energy stored in bonds between atoms is B. chemical energy.

What type of energy is this ?

Chemical energy is the energy that is stored in the bonds between atoms. When these bonds are broken, the energy is released. This energy can be used to do work, such as powering muscles or generating electricity.

Mechanical energy is the energy of motion. Electrical energy is the energy of electrons. Neither of these types of energy is stored in bonds between atoms.

Find out more on chemical energy at https://brainly.com/question/5650115

#SPJ6

The digestive and excretory systems guided notes

Answers

Answer:

what notes

Explanation:

Sam is out for a long run on a hot day. He is dehydrated and does not have water with him. As he tries to maintain a high exercise intensity, his body is likely experiencing the dual cardiovascular demand.Which two factors make up this demand?
a. The need to pump additional blood to the surface of the skin b. The need for additional hydration c. The need for more ATP d. The need to produce more sweat e. The need to pump additional blood to working muscles f. The need for additional blood plasma

Answers

Answer:The dual cardiovascular demands includes: Option A (The need to pump additional blood to the surface of the skin.) And

Option E (The need to pump additional blood to working muscles)

Explanation:

When an individual is performing exercise under the hot atmosphere, the following demands are required:

--> there would be physiological increased demand of the skin to prevent further dehydration .

--> there would be increased energetic demands for muscular activities.

1.) The blood flow to ACTIVE MUSCLES during prolonged exercise under a hot day.

There is increase in carbon dioxide and hydrogen ions, decrease in oxygen levels will cause the smooth muscles of the blood vessels located at the active muscle sites to relax. This enhances the in flow of blood supply oxygen which is needed for the generation of Adenosine triphosphate (ATP) for energy. This requires a greater cardiac pumping capacity.

2) The flow of blood to the skin during during prolonged exercise in a hot day.

To avoid dehydrations during exercise which occurs through the lungs and skin, there is increased cardiac output to remove excess heat generated through thermoregulation of cutaneous circulation.

Which occurs during the light-dependent reactions of photosynthesis?

a.Light energy is absorbed and then converted into chemical energy in the form of ATP and NADPH.
c.Organic molecules, such as proteins, lipids, and nucleic acids, are produced.

d.None of the above

b.ATP and NADPH are used to make glucose

Answers

Answer:

In light-dependent reactions the energy from sunlight is absorbed by chlorophyll and converted into chemical energy in the form of electron carrier molecules

Explanation:

Like ATP and NADPH light energy is harnessed in Photosystems I and II both of which are present in the thylakoid membranes of chloroplasts

help please its timed

Answers

Answer:

1st pic- transcription

2nd pic -3

3rd pic- 2

4th pic -1

Explanation:

DOES BORON HAVE CATIONS OR ANIONS PLZ HELP ME!!!

Answers

Answer:

umm

Explanation:

Plants and batteries both store

mechanical energy
electrical energy
chemical energy

Answers

They both store chemical energy

explain global warming and climate change

Answers

Answer:

Global warming is the increase in the earths atmosphere from several things. Pollution is the main cause of this. "Global warming" is the overall effect and "climate change" is what is happening to our planet currently.The average global tempature is increasing at a very high rate and is getting worse very quickly.  Scientists say that unless we slow down global-warming emissions, average U.S. temperatures could increase by up to 10 degrees Fahrenheit over the next century. Pollutants can last over a year in our atmosphere these pollutants trap the heat and cause our atmosphere to become warmer (green house effect). The biggest source of climate change is the burning of fossil fuel :coal, petroleum, natural gas, oil shales, bitumens, tar sands, and heavy oils.

Explanation: Hope this is of the usefull have a most wonderfull day!

Other Questions
find the missing value so that the line passing through the points has the given slope. (7, 1) and (x, 4); m = 3/4 Upon seizing control of the Democratic Republic of the Congo, Mobutu renamed the country __________.A.RwandaB.the Belgium CongoC.ZaireD.Sudan Solve the equation. 4d + 2d 4d + 4 = 3d Can you write paragraph with the topic: how to use effective communication skills/assertive communication PLS HELP I WILL MARK BRAINLIEST A neutral atom contains 12 neutrons and 11 electrons. The number of protons in this atom is (1) 1 (3) 12 (2) 11 (4) 23 Creating barriers to trade can lead to which problem?A. The country will become overly reliant on foreign countries.B. Other countries will retaliate by creating their own barriers totrade.C. Consumers will be more likely to buy luxury goods in foreignmarkets.D. Domestic businesses will face more competition from foreigncompaniesSUBMIT Plwase help! will give brainliest! ;-; pls help ASAP will give brainlist HELP PLEASE I NEED HELP RN "The poker hand straight consists of five cards having consecutive denominations (but can have varying suits). What is the probability to be dealt a stright from a deck of 52 cards 20 POINTS1. A long chain of monomers that contains ribose *a DNAb RNAc neither2. a long chain of amino acids that contains uracila DNAb RNAc neitherplease answer both!! Why is the nucleus considered the command center of the cell? A MBR treatment plant has a flow of 0.3 mgd with 220 mg/l BOD (the soluble portion is 120 mg/l) and 230 mg/l suspended solids (184 mg/l is volatile). Effluent soluble BOD is 2 mg/l. The design calls for 5000 mg/l MLSS and sludge age of 20 days with a Y = 0.8, kd = 0.4. Calculate the aeration basin volume, detention time, BOD loading, ratio, and waste solids, both VSS and TSS. What is the Acropolis?A. A tourist site on the oceanB. A tourist site on a mountainC. A tourist site in a templeD. A tourist site in the skyE. None of the above are correct In the following sentence, what type of context clue is used to help you figure out the meaning of the word aptitude?She has an aptitude, a natural ability, to figure out mathematical problems.MIDDLE SCHOOLLLLL PLZZ HELP How do I get the fractional form for cos 4/3? Andys sandwich consists of a20-gram piece of cheese, a 60-grampiece of turkey, and two 30-gram slices ofbread. What is the total weight ofAndys sandwich, in kilograms? True or False. Sixty-eight Burmese pythons were caught in the Everglades during the 2013 Python Challenge. SOMEONE HELP ASAP ill give brainliest