In an experimental study of the effect of copper deficiency on coat color in bicolored juvenile rats, the independent variable is?

Answers

Answer 1

Answer:

amount of copper

Explanation:

The independent variable would be the amount of copper fed into the experimental rats.

An independent variable during an experiment is a variable whose value is not dependent on any other variable being measured in the experiment.

The value of an independent variable is not changed by any other variable in an experiment. In actual fact, the effect of the independent variable is being tested on other variables (dependent variables) in the experiment.

Hence, in an experimental study of the effect of copper deficiency on coat color in rats, the amount of copper fed into the system of the rats will be varied and the effects of this variation on the coat color of the rats would be observed by measuring relevant variables. Therefore, the amount of copper is the independent variable.


Related Questions

Select the correct answer.
How many particles are in a mole?

Answers

23 particles
6.02214076•10^23

A student run10m/s what does it means

Answers

Answer:

it means that student is running 8meters per second

Answer:

it means that the student runs 10 miles per second

Explanation:

Which statement describes one or both formations?
Formation 2 is an extrusion.
Formation 1 is an intrusion.
Formations 1 and 2 are faults.
Formations 1 and 2 are igneous rock.

Answers

Answer:

Formations 1 and 2 are igneous rock.

Explanation:

Trust me

Answer:

formations 1 and 2 are igneous Rock. hope this helps:)

Explanation:

Can someone explain to me the groups of invertebrates, their characteristics, and their examples.

Answers

Answer:

invertebrates are animals that lack back bone like protozoans such as amobas and paramecia,annelids such as earth worm ,spongs, comb jellies ,hydras

Sponges, jellyfish, worms, snails, and squids. These are just a few of the many types of invertebrates.
...
Classification of Invertebrates.
Phylum (includes) Notable Characteristics Example
Arthropoda (insects, spiders, crustaceans, centipedes) segmented body, jointed appendages, exoskeleton, brain insect (dragonfly)
Hope it helps

What is the lava like that produces an eruption like this one? A. thin and runny B. thick and runny C. thick and sticky D. thin and rich in gas

Answers

it could be either A or B depending on how much it’s been

The___is also called the dark reaction in photosynthesis

Answers

Answer:

The answer is Carbon-Fixing Reactions or Light Independent Reactions.

Explanation:

In which areas does acid rain most likely form before precipitating in locations downwind?
A large cities with a high volume of smog
B large cities with a low volume of smog
C coastal cities that are not developed
D small farming areas near lakes

Answers

Answer:

A) large cities with a high volume of smog

Explanation:

The T allele codes for tall stems in pea plants and the tallele codes for short stems. Which of the
following are possible genotypes for the offspring from a cross of Tt x tt?
a TT and tt
b. Tt
C. TT and Tt
d. Tt and tt

Answers

Answer:

D Tt and tt

Explanation:

In one punnet square you will have Tyler in the other three will be tt

Answer:D

Hope this helped if not please contact me so I can explain :)

- Cells control gene expression at which steps?

transcription, translation, and the formation of the final protein

interphase, prophase, and metaphase

mitosis, meiosis, and the formation of the final protein

transcription, mitosis, and DNA replication

Answers

Answer:

A.

Explanation:

The cells control gene expression at transcription, translation, and the formation of the final protein.

What do you mean by gene expression?

Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product that enables it to produce end products, protein or non-coding RNA, and ultimately affect a phenotype, as the final effect.

Gene expression is the process by which the information encoded in a gene is turned into a function. This mostly occurs via the transcription of RNA molecules that code for proteins or non-coding RNA molecules that serve other functions.

Gene expression is a tightly regulated process that allows a cell to respond to its changing environment. It acts as both an on/off switch to control when proteins are made and also a volume control that increases or decreases the amount of proteins made.

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What do you do when you have abdominal pains?

Answers

Answer:

Use ginger, drink tea, chew peppermint gum, or simply use a heating pad.

Find the curved surface area, total surface area and volume of the following cylinders.
(a)height is10 cm and radius is7cm
(b)height is 20cm and diameter is 14cm

Answers

Answer:

Explanation:

Curved S.A-πdh

Volume=πdh

22/7 ×14×10=440cm²

22/7×7×7×10=1540cm³

22/7×14x2=88cm²

440+88=528cm²

B

Csa 22/7×20×14=880cm²

Volume 22/7×7×7×20=3080cm³

Total sa

2Dπ=22/7×14×2=88cm2

88+880= 768cm²


A ______ is a push or pull.​

Answers

Answer:

The answer is Force.

Explanation:

Force is a push or push of a particular directions with a particular object.


A human baby is born with one X chromosome and one Y chromosome. What
must be true about this baby?
A. The baby is female
B. The baby is haploid
C. The baby is prokaryotic
D. The baby is male

Answers

Answer: d) the baby is male

Explanation: Ovules contain X chromosomes whereas sperms come in two types: one type contains x chromosome and the other contains Y chromosome.

When a sperm containing X chromosome fertilises with an ova, the zygote will have two X chromosomes. This zygote would develop into a female child. When a sperm containing Y chromosome fertilises with an ova, the zygote will have one X and one Y chromosome. This zygote would develop into a male child.

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Answer: the baby is male

Explanation: female babies are born with 2 X chromosomes. Haploid babies have a one set of unpaired chromosomes. It’s impossible for a baby to have an X and Y chromosome pair and be prokaryotic. Males have one X chromosome and one Y chromosome, so it has to be male.

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Drinking non-potable water does not carry significant health risks. Please select the best answer from the choices provided T F

Answers

Answer:

false

Explanation:

Drinking non-potable water does not carry significant health risks. The given statement is false.

What is drinking non-potable water?

Non-potable water is the water which is not treated to drinking water standards and it is not meant for the human consumption. Non-potable water, such as the raw or untreated water from the reservoirs. Non-potable water is used for the irrigation and other purposes, in addition to recycled water which is used for highly-treated wastewater.

Microbiologically, the contaminated drinking water can transmit diseases such as the diarrhea, cholera, dysentery, typhoid and polio and it is estimated to cause over 485000 diarrheal deaths each year.

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The universe can be explored using visible and invisible forms of light. These dishes (that detect radio waves from outer space) are part of a much bigger telescope in New Mexico. What is its name? A. Viking B. Voyager C. Very Large Array D. International Space Station

Answers

Answer: C. Very Large Array

There are 28 radio antenna, which are essentially satellite dishes. Only 27 are in operation at any given time, leaving one to sit out for maintenance. Astronomers using this array were able to observe black holes, and also observe the formation of interplanetary disks, among many other applications as well.

The reason why so many dishes are used is to increase the faint signal that is received from such a long distance away (often lightyears away). The 27 dishes are effectively the same as having a single radio dish that is 36 km (22 miles) in diameter. Having such a impossibly massive satellite dish is not feasible, so it's more practical to go with 27 smaller dishes.

which is not an example of inorganic fertilizer? A.nitrogen fertilizer B.phosphorus fertilizer C. Livestock waste​

Answers

Answer:

Livestock waste

Explanation:

Fertilizers supplement the soil with macronutrients needed in large amounts: nitrogen, phosphorous and potassium. However, organic and inorganic fertilizers do so via different materials. Organic fertilizers contain only plant- or animal-based materials that are either a byproduct or end product of naturally occurring processes, such as manures, leaves, and compost.

Inorganic fertilizer, also referred to as synthetic fertilizer, is manufactured artificially and contains minerals or synthetic chemicals. For example, synthetic nitrogen fertilizers are typically made from petroleum or natural gas. Phosphorus, potassium and other trace elements in inorganic fertilizers are often mined from the earth. Balanced inorganic fertilizers, high in all three macronutrients, commonly include products like ammonium nitrate, ammonium sulfate, potassium chloride (potash), triple superphosphate, and magnesium sulfate (Epsom salts).

Answer:

Hey!

C. LIVE STOCK WASTE is your answer!

Explanation:

Waste from cattle/pigs/goats/hens and other animals in the farm all contain organisms which live in the waste...this is how the waste is decomposed and formed into natural fertilisers

THE REST DO NOT CONTAIN ANY ORGANIC MATTER...

HOPE THIS HELPS!!

Genetic disorders can result when sister chromatids fail to separate properly. During which phase is this problem most likely to occur?

A: g1 phase
B:g0 phase
C: Cytokinesis
D:Mitosis

Answers

The correct answer is mitosis

which statement best describes the scientific process

Answers

Answer:

Where is the statement

Explanation:

Answer:

best answer

Explanation:

Make an observation.

Ask a question.

Form a hypothesis, or testable explanation.

Make a prediction based on the hypothesis.

Test the prediction.

Iterate: use the results to make new hypotheses or predictions.

HELP ME OUT PLEASE KISSES WILL BE AWARDED

Answers

Answer:

what kisses i want one if you giving them away

Explanation:

because i want one not bad but i want one

Answer:

3200g

Explanation:

n=pv/RT

n= 3000 x 83.1 / 8.31 x 300

n = 100

n= mass/molarmass

100= m/32

m=3200g

Which of the following statements about CO2is not true?

CO2is is just one type of greenhouse.
CO2is is harmful to the planet.
Life as we know it could not exist without CO2
The CO2in in our atmosphere has been around a long time.

Answers

Answer:

Co2 is harmful to the planet

Life as we know doesn't exist without co2

Explanation:

Plants use co2 so it is useful. Pants are the energy source for all other life

where has the population reached the carrying capacity in the Graph shown above? (need help quick!)
A. point C
B. point B
C. point A
D. point D

Answers

Answer:

The correct answer is option D. point D.

Explanation:

Carrying capacity is characterized as the maximum populace size that a domain can continue inconclusively.  For most species, there are four factors that factor into figuring the carrying capacity of an individual population: food accessibility, water resources, habitat, and ecological conditions.

In a graph representation of population size in a time period increases until it reaches carrying capacity, carrying capacity is representing in the graph where the increase in curve becomes stable and makes a plateau.

Thus, the correct answer is option D. point D.

Answer:

D point D

Explanation:

For diffusion to occur, which condition must be met?
A concentration gradient must exist.
A hypotonic external environment must exist.
A hypertonic external environment must exist.
Dynamic equilibrium must exist.

Answers

Answer:

A concentration gradient must exist.

Explanation:

For diffusion to occur, a concentration gradient must exist. Therefore, the correct option is A.

The movement of molecules along a concentration gradient is known as diffusion. It is a significant process that all living things go through. Diffusion facilitates the flow of materials into and out of cells.

Without the use of energy, molecules can be transported from an area of high concentration to an area of low concentration through the process of diffusion. Simple diffusion and Complex diffusion are the two types of diffusion. Diffusion was made easier.

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Unattached earlobes is a dominant trait, E. A parent who is homozygous for unattached earlobes is crossed with a parent who is
homozygous for attached earlobes. Which describes the genotypes of their offspring?
100 percent Ee
100 percent unattached earlobes
100 percent ee
100 percent attached earlobes

Answers

Answer:

100 percent Ee

Explanation:

This is a cross involving a single gene coding for attachment or not of earlobes. The allele for unattached earlobes (E) is dominant over the allele for attached earlobe (e). This means that allele E will always mask the phenotypic expression of e in a heterozygous state.

A parent that has same alleles for unattached earlobes i.e.  EE is crossed with a parent that has same alleles for attached earlobes i.e. ee. In this cross, all of the offsprings will have a heterozygous genotype, Ee because gametes E and e will be produced respectively by each parent.

Hence, since all of the offsprings will have an Ee genotype, it means 100% of their offsprings will have Ee (HETEROZYGOUS).

Answer:

Its A or 100% Ee

Explanation:

edge 2022

A and B are biotic in nature, C, D, and E are abiotic in nature. In an open system, A produces D and E while B could not produce anything rather depend totally on the D and E produced by A. As the number of A increases, it favours the growth of B, the production of D and E also enhances the growth and development of B.

Answers

Answer:

A: Plants

B: Consumers

C: Sun

D: Oxygen

E: food

Explanation:

Abiotic factors refer to non-living things int he ecosystem, whereas the biotic factors are the living things in the environment.

A, in this case, is referring to the plants in the ecosystem, the producers. Plants produce D and E, that is, oxygen and food respectively. B are the consumers in the environment, the herbivores in particular that feed on the plants and rely on it as the only food source. C refers to the sun as the source of light energy for the plants.

How are the lydias ice and lyric cycles different

Answers

Answer:

The lytic cycle involves the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell. The lysogenic cycle involves the incorporation of the viral genome into the host cell genome, infecting it from within.

Explanation:

the cycle of changes which occurs in female reproductive system for a month is called​

Answers

ovulation

Explanation: ovulation is the release of eggs(ova) from the ovaries is the  cycle of change which occurs in female reproductive system for a month.

What kind of genetic factors affect algae growth?

Answers

ANSWER :

Algae prefer stable conditions. Low water levels create slower, more uniform conditions that encourage algae growth. Warmer water leads to increased algae growth. The temperature of the water may even favor the growth of certain types of algae over others. Nutrients, like nitrogen and phosphorus, fuel algae growth; however, excess nutrients from human activities can exacerbate algae blooms.

which organ does the digestion of protein to take place​

Answers

Answer:

It is the STOMACH.

Explanation:

If Chymes things into the small intenstine.

hope it helps.

Answer:

stomach and duodenum..

what are the two important roles of gut movement?

Answers

These movements enable food to progress along the digestive tract while, at the same time, ensuring the absorption of the important nutrients. Techniques of measuring these movements of the gut enable us to recognize the normal patterns of contraction in each of the regions

Answer:

These movements enable food to progress along the digestive tract while, at the same time, ensuring the absorption of the important nutrients. Techniques of measuring these movements of the gut enable us to recognize the normal patterns of contraction in each of the regions

Explanation:

What is thw purpose of the proper handling of experimental subjects?

Answers

Answer:

To ensure that good and reliable data are collected.

Explanation:

:)

Answer:

C, “To ensure the hypothesis is shown correct”.

Step-by-step explanation:

Hope this helps!
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