In an investigation to determine a factor that affects the growth of rats, a student exposed 100 rats of the same age and species to identical conditions, except for the amount of living space and the amount of food each rat received. Each day the student measured and recorded the weight of each rat. State one major error that the student made in performing this

Answers

Answer 1

Answer:

Violating 'Ceteris Paribus' {Other factors constant} assumption, as both food & space are varied (simultaneously)

Explanation:

Weight Growth is the dependent (effected) variable in this case. And, independent (causal) variables are food amount are living space respectively.

However particular independent factor's (food or living space) impact on dependent variable ie weight growth : can be determined only by - examining individual variable (food or living space) impact on weight growth. So, either of the two variables should be varied, & not both should be varied simultaneously.

This would imply depiction of each factor's clearer individual impact on the dependent factor.


Related Questions

What chemical elements are present in proteins?

Answers

Carbon, Hydrogen, Oxygen and Nitrogen
Proteins are made of carbon, hydrogen, oxygen, and nitrogen

The government want to set new regulation that reduce carbon emission

Answers

Answer:

"It will reduce greenhouse gases in the atmosphere" is the one reason among the following choices given in the question that this act will help with the sustainability of our environment. The correct option among all the options that are given in the question is the first option. I hope that the answer has helped you.

Explanation:

Which best describes the permeability of a membrane?
O A. The total thickness of the membrane
B. The flexibility of the membrane
C. The number of molecules in the membrane
D. The ability to allow materials to cross a membrane

Answers

Answer:

D

Explanation:

D. is correct because the membrane works like a security guard and only allows certain materails to cross the membrane. The definition of permeability is the state or quality that allows something to pass through.

Permeability is a standard of easy motion of liquid and gases through a membrane or material. They allow the transportation and exchange of gases in a cell.

The statement that best describes the permeability of a membrane is:

Option D. The ability to allow materials to cross a membrane.

This can be explained as:

Permeability is a physical property of membranes and substances that allows the other molecules to move through them.

It acts as a barrier from substances entering and exiting the cell or membrane and maintains the balance in a system.

Therefore, permeability is the allowance of materials across the membrane.

To learn more about permeability follow the link:

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Where can we find the most mountain chains in the US?

-The eastern US
-The western US
-Alaska

Answers

Answer:

the answer is the eastern US

Explanation:

good luck

Please help. I’m kinda dumb

Answers

Answer:

why do you say that?

Explanation:

I can't see what it says even when i pull the piscture up.

Sorry :|

Have a great day/night and stay safe! :D :)

I'm not quite sure either, but from the instructions it appears that you should have some sort of "subject" and two of the subject's relatives. Then you just have to list if the subject and the two relatives show the traits. I believe that the subject is either you, since the course says "Your Genetic Traits"

I hope this helped a bit.

Starting with the cell, list the next four steps in the levels of organisation for an animal

Answers

Answer:

cell, tissue, organ, system, organism

Which text would MOST likely require the strongest reading skills?

A: a list of library books

B: a newspaper article

C: rules for a gym membership

D: a restaurant menu

Answers

Answer:

C

Explanation:

The terms and conditions of contracts are very complex and hard to understand.

C, rules for a gym membership

What does the process of cell respiration provide for cells?

Answers

Answer:

Cells do cellular respiration to extract energy from the bonds of glucose and other food molecules. Cells can store the extracted energy in the form of ATP.

Is there more water today, or when the Earth was formed?​

Answers

Answer:

no it is the same amount of water since the world was formed

Explanation:

water did not magically appear from no where

Which process does not release energy?


a photosynthesis

b lactic acid fermentation

c cell respiration

d alcoholic fermentation

Answers

Your answer is a hope this help

Which factor is most responsible for atmospheric convection?

Answers

Answer:

atmospheric pressure and winds (I’m pretty sure)

During the light dependent reactions of photosynthesis which is not produced
A.Oxygen
B.ATP
C.NADPH
D. Glucose

*hurryyyyyyy*

Answers

Answer:

D. Glucose

Explanation:

Both natural processes and human activity are causing some of Earth's permanent bodies of ice to melt. If enough of this ice melts, it will add warm freshwater to the northern Atlantic Ocean, where deep water currents start. What effect is this likely to have on the circulation of ocean water around the globe?

Answers

Answer:

The water will get more warm fresh water.

Explanation:

Answer:

This makes water currents circulate, similar to convection.

what happened as a result of over hunting whales

Answers

Everyone died snake kappa mf f d

What is the relationship between population number and carrying capacity in a stable population

Answers

Answer:

As a population grows in an area, a population may experience the effects of increased densities. In a given area, is the maximum population size of the species that the environment can sustain is called the carrying capacity. Carrying capacity is determined by the amount of available resources (food, habitat, water).

Explanation:

hope this helps<3

Water intoxication occurs when a. the body's electrolytes are out of balance b. a person has a high body mass in people engaged in low-impact activities d. all of the above​
ITS A I TOOK THE TEST ON EDGE

Answers

Answer:

the answer is: A

Explanation:

Answer:

A).  the body’s electrolytes are out of balance

Explanation: test on edge

In which organelle does the food making process in plants take place?

Answers

ANSWER:

CHLOROPLAST

Explanation:

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

Which of the following is NOT a characteristic of all living things?
Ability to reproduce
Ability to move
O Growth and development
Homeostasis

Answers

Answer:

homeostatis

Explanation:

The answer should be homeostatis. Organisms can not do this.

Answer:

Ability to move

Explanation:

All organism species have the ability to reproduce, grow and develop, and maintain homeostasis (for example, sweating). Not all organisms can move, however. Cacti, for instance, are stiff and do not move on their own, yet are still alive.

b) How does the thermal energy of solid water change as it melts?

Answers

When ice melts, it’s temperature remains constant until all the ice turns to water.

Answer:

Hi! So solid water would be ice, the particles in ice are very close together which makes it firm and makes it ice. When you put the ice in the microwave, (Microwave has heat so it would be thermal energy!) the particles in the ice mover a tiny bit away from each other which then makes it water. Then, if you boil the water, the particles that are in the water move far away from each other and it turns into steam!

Hope this helps!! Stay safe! <3

Why are the elephants facing a crisis?

Answers

Answer:

Many elephants are killed by poachers for their ivory tusk, the number of elephants in the world are decreasing

Explanation:

Google but in my own words

THE IMAGE ABOVE DEPICTS ____ WAVES (PLEASE HELPP ILL GIVE 85 POINTSS)

Answers

Answer:

I think its Transverse waves

Answer:

Its actually a surface wave I got this right on my test lol

Explanation:

If you wanted to observe a living organism-an amoeba, for example-which type of microscope would you use?
A. electron microscope
B. light microscope
C. either one
D. niether one

Answers

Answer:

compound light microscope

Explanation:

an amoeba is a microscopic unicellular protist

Usain bolt was on his way to run a race. Before he left the house, his friend gave him annapple and said this will help you win the race. Explain how eating the apple will benefit the runner.

Answers

Answer:

It will help him because firstly,an apple is a vitamin and according to the six classes of food, vitamin's function to the body is to help fight disease and harmful organism therefore making you strong.So if Usain bolt eats that apple it will make him strong. (Reminder: pls follow me and i will follow u oo)

Why does evolutionary theory absolutely require the earth to be very
old?

Answers

Answer:

Mainly because Evolution takes millions and millions of years to happen.

Explanation:

Evolutionary theory require earth to be very old because the process of evolution takes millions of year to happen.

What do you mean by evolution ?

Evolution is the process through which a population of organisms evolves as new generations replace ancestors. Individual species do not evolve; rather, communities of organisms do.

Natural selection processes like as environmental change, predation, or human disturbance create evolutionary adaptations, and these processes must continue and grow widespread for the change to remain and accumulate. That happens less frequently and slowly than you may expect.

Scientists have determined that Earth is 4.54 billion years old, with a 50 million year error, by dating the rocks in its ever-changing crust as well as those in Earth's neighbors, including the moon and passing meteorites.

Therefore, the Earth needs to be very old for evolutionary theory to be true.

Learn more about Evolution, here:

https://brainly.com/question/2725702

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What process is depicted in the following image?



Conjugation
Transformation
Binary fission
Transduction

Answers

Answer:

its transformation! so option B

Explanation:

Within the image you can see the final product is a "Genetically Transformed cell" and within lesson 03.01 HONORS on flvs there are multiple dropdowns giving definitions. one of these dropdowns contains this exact image, and it is titled 'Transformation' in the lesson.

I am currently taking this course, so actually searched brainly for that answer initially. I decided to take the test and come back with the right answer to help any other students like me! A tip for taking tests on flvs: You can have flvs open on multiple tabs, so the best way to take tests like this is to have the test open on one tab, and the lesson plan on another tab. That way you can read through the lesson and look at any graphs while actively in the test! Hope I could help at least a little, have a great school year everyone.

ASAP PLEASE

How are photosynthesis and cellular respiration related?
Group of answer choices

The products of photosynthesis are the reactants of cellular respiration.

The reactants of photosynthesis are the reactants of cellular respiration.

The reactants of photosynthesis are the reactants of cellular respiration.

The products of photosynthesis are the products of cellular respiration.

Answers

The answer is the first one :)

Answer:

The answer is The products of cellular respiration are the same as the reactants of photosynthesis.

Explanation:

because they have the same reactants

Is virus living or non living things

Answers

It's both! Scientists really can't agree on it.

Answer:

Most biologists say no. Viruses are not made out of cells, they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms.

The rate of a physical or chemical process
refers to the amount of product formed per
unit time is expressed as
(A) rate=
Sp
Ss
st
(B) rate=
др
ds
(C) rate=
8p
(D) rate
др
St​

Answers

Answer:

(A) rate=

Sp

Ss

st

Explanation:

The rate of chemical is a measure of the speed of a chemical reaction.

The measurement of the reaction rate is based on the disappearance of a reactant or appearance of a product with increasing reaction time.

Reaction rate is usually expressed in terms of a change in concentration of the chosen reactant or product per unit of time.

During a reaction, the concentration of the reactant decreases exponentially with time while that of a product increases exponentially with time.

Reaction rate  = [tex]\frac{change in concentration of a reactant/product}{Time taken}[/tex]

How do signals move from a sensory neuron toward the brain?​

Answers

it goes throug the nerves to where your brai want to move the part  

example

you want to walk it send signals to right leg thern left leg

Which occurs during both DNA replication and protein production?

RNA leaves the nucleus.
DNA leaves the nucleus.
RNA unzips.
DNA unzips.

Answers

Answer: RNA leaves the nucleus

Explanation: I did the assigment and got it right

1. RNA leaves the nucleus during both DNA replication and protein production.

What is DNA replication?

"DNA replication is the process by which the genome's DNA is copied in cells. Before a cell divides, it must first copy (or replicate) its entire genome so that each resulting daughter cell ends up with its own complete genome."

What are the main steps involved in DNA replication?

The main steps involved in DNA replication are as follows:

Replication Fork Formation.Primer Binding.Elongation.Termination.

What is protein production?

"Protein production is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus."

What are the main steps of protein production?

Protein production includes three steps:

Initiation. Elongation. Termination.

To know more about DNA replication and Protein Production here https://brainly.com/question/13543444

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The Justinian code was created to have a less complicated _______ system.A) legalB) government C) economic D) military Evaluate. please help me solve this what is the absolute value of 2+2i? What the meaning of centerpiece For each of the procedures described in the table below, identify the audit procedure per formed and classification of the audit procedure using the following:Audit Procedures: Classification of Audit Procedure(I) Analytical procedure (9) Substantive procedures(2) Confirmation (I0) Test of controls(3) Inquiry(4) Inspection of recordsordocuments(5) Inspection of tangible assets(6) Observation(7) Recalculation(8) ReperformanceProcedure Audit Procedure Classification of Audit Procedurea. Requested responses directly from customers as to amounts due. b. Compared total bad debts this year with the totals for the previous two years. c. Questioned management about likely total uncollectible accounts. d. Watched the accounting clerk record the daily deposit of cash receipts. e. Examined invoice to obtain evidence in support of the ending recorded balance of a customer. f. Compared a sample of sales invoices to credit files to determine whether the customers were on the approved customer list. g. Examined a sample of sales invoices to see if they were initialized by the credit manager indicating credit approval. Which of the following statements reflects the fluid quality of income What is the impact of the dred scott decision Find the value of X(5x+4)+(8x-71) How did the ancient Hebrews use the natural resources in Canaan? They made and used tools to farm in fertile regions. They dug mines in the mountains for different minerals. They built dams along the major rivers to provide irrigation. They brought different types of plants with them to Canaan. what is the chemical name of CCI3 Which of the following polynomial functions is graphed below?A. f(x) = (x - 5)(x - 1)^2(x - 1)B. f(x) = (x - 4)(x - 2)^2(x - 3)C. f(x) = (x + 5)(x + 1)^2(x - 1)D. f(x) = (x+4)(x-2)^2(x+3) What were four factors that unified the Greek city-states? A. Religious beliefs B. LanguageC. GovernmentD. LiteratureE. Family relationshipsF. Olympic Games G. Topography Why did congress place the house and senate on the top of the list (03.01 LC)Which of the following best describes the particles in an atom?O Protons carry negative chargeO Neutrons carry positive chargeO Neutrons move around a nucleusElectrons move around a nucleus Even in this 21st century,some tribes of nepal are living in hunting and gathering society. Their existence has become critical due to deforestation. In this situation,how should we protect them from extinction?Suggest any four measures. There are 1275 ants in 5 anthills how many are in 1 anthill? i dont under stand this can someone plz help? This is a 2x2 identity matrix:TrueOrFalse solve the system of equations y=x-2x+y=10 4) Cell C suddenly lost all its dynamin proteins. Which of the following will most likely happenrightaway as a result of this loss?A) Transcription factor X will no longer be able to go to the nucleusB) A vesicle bud will no longer be pinched off from a membraneC) A vesicle will no longer be tethered to a target membraneD) A protein will no longer be targeted to the mitochondrial matrixE) Two of the above