in an appropriate design experiment, a scientist is able to test the effect of?

Answers

Answer 1

Answer:

This question is incomplete as it lacks options, the options are:

A) a single variable

B) multiple variables

C) the hypothesis

D) scientific observations

The answer is A

Explanation:

An experiment is conducted to solve a particular problem or find answers to a given scientific question. In an experiment, which usually consists of variables, only A SINGLE VARIABLE is tested at once.

This means that the effect of a variable called INDEPENDENT VARIABLE is tested at a time. The independent variable is the variable that is changed or manipulated in an experiment. This means that only a SINGLE VARIABLE can be changed at at time in an an appropriate design experiment.


Related Questions

Which of the following is conical movement in which the distal end of a structure moves in a circle and the proximal end remains relatively fixed?
A. Protraction
B. Rotation
C. Circumduction
D. Retraction

Answers

Answer:

The correct answer is OPTION C (Circumduction)

Explanation:

Circumduction is motions without clear opposites of the part of the body, an example is rotating the hand from the wrist. The answer is circumduction because this type of movement ensures the distal end of a bone moves in a circle while the proximal end remains relatively stable is particularly found in bones where the movements of the joints are opposite to each other example is the ball and socket joint movement. For circumduction to take place, the degree of distance between two bones of the body has to be decreased and sometimes straightened to increase the level of movement or motion produced, there must be a movement towards the middle of the body and sometimes joint movement away from the middle of the body. All these movements are in order.

we love anime
and naruto.
fruite baskettttt
&
demon slayyer dragon ball z for some extra
xp. uwu

Answers

I need points and I love anime too :)

Answer:

I LOVE NARUTO so here's a naruto pic

Explanation:

Tell me one thing you know about replication.

Answers

Answer:

DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.

Thats one thing ;)

They said the same thing I was gonna say

What is an example of a eukaryotic cell?

Answers

Explanation:

Plant cell

Is the best example of a eukaryotic

[tex] \bf Eukaryotic \: cells : - [/tex]

They are complex and larger than the prokaryotic cells its name is drived from a Greek word meaning 'good' or 'true nuclei' they consist of the cell wall which protects and supports the plasma membrane these cells are found in all organisms except bacteria and blue green algae for example plant animal fungi etc all are eukaryotes. Amoeba is a eukaryote because it has a distinct nucleus which is bound by nuclear membrane.

Additional information :-

Cell :- Smallest structural and functional unit of a living organisms.

Unicellular organisms :- The organisms made up of one cell only.

Multicellular organisms :- The organisms made up of two or more cells.

Cell wall :- The covering of cellulose outside plasma membrane also called plasma membrane.

Centriole :- The cell organelle that helps in cell division found only in animal cell.

Chloroplast :- The photosynthetic originals found in a plant cell green in colour due to the presence of chlorophyll.

Tissue :- A group of cells having the same structure performing the same function.

Nucleus :- The control centre of the cell

pollution in the____will have the greatest effect on human health.

Answers

Answer:

TROPOSPHERE

Explanation:

pollution the TROPOSPHERE will have the greatest effect on human health.

How many ATP are made in the kreb cycle part of cellar respiration?

Answers

Answer:

2 ATP are created in Kreb cycle

AZT works by interfering with HIV's production of offspring inside a host cell. It does so by interacting with a molecule called reverse transcriptase.

a. True
b.False

Answers

Answer:

a. True

Explanation:

AZT is an abbreviation for azidothymidine and it is the first effective drug against the human immunodeficiency virus (HIV). Thus, azidothymidine is considered to be the first anti-retroviral drug used for the prevention and treatment of the human immunodeficiency virus (HIV).

AZT works by interfering with HIV's production of offspring inside a host cell. It does so by interacting with a molecule called reverse transcriptase.

Basically, the shape and composition of the reverse transcriptase plays a significant role in the interaction. Therefore, this anti-retroviral drug known as AZT may not work effectively if the shape and composition of the reverse transcriptase changes.

Furthermore, the high mutation or replication rate of the human immunodeficiency virus (HIV) owing to its enormous genetic diversity has made it extremely difficult to develop an effective and accurate vaccine against the virus.

Hence, the human immunodeficiency virus (HIV) possesses a high error rate.

Which phrase accurately describes an elliptical galaxy ?​

Answers

Answer:

While spiral galaxies are bright, elliptical galaxies are dim.

Explanation: I hope this helped :)

Answer:

While spiral galaxies are bright, elliptical galaxies are dim.

What describes an elliptical galaxy?

An elliptical galaxy is a type of galaxy with an approximately ellipsoidal shape and a smooth, nearly featureless image. They are one of the three main classes of galaxy described by Edwin Hubble in his Hubble sequence and 1936 work The Realm of the Nebulae, along with spiral and lenticular galaxies.

Explanation:

I hope I helped out!!

what do Entropy mean

Answers

Answer:

lack of order or predictability; gradual decline into disorder.

Explanation:

Answer:

Entropy means the amount of energy in a system that is unable to work

(randomness)

6. The two kinds of cells are Prokaryotes and Eukaryotes. How are they
different? *
Prokaryotes have a nucleus.
Prokaryotes are plant cells.
Eukaryotes have a nucleus.
There is no difference.

Answers

Answer:

Eukaryotes have a nucleus.

Answer: Eukaryotes have a nucleus.

Explanation: prokaryotic cells, like bacteria and archaea, do not have a nucleus because the DNA is not surrounded by a membrane. Eukaryotic cells, like animal cells, have a membrane protecting the DNA

How does the hardness of a rock impact their ability to erode?

Answers

Answer:

hardness of rock impact their ability to erode by when rock is harder then it will take more time than soft rock to be eroded . it will resist it's erodness till some more time it will not crack easily

Which would be the best approach for a student to use in determining
whether an unidentified block is made of metal?
A checking its color
B. determining its mass
C. determining its weight
D. checking its conductivity

Answers

I would answer that as Answer D) Checking it’s conductivity


Please please help!

Answers

Answer:

should be 4

Explanation:

plants cant do photosynthesis without sunlight

When one mineral scratches another, it is
1. a 1 on the Mohs scale.
2.softer than the mineral is scratches
3.harder then the mineral is scratches.
1.equally as hard as the mineral it scratches.

Answers

harder than the mineral it scratches.

Describe the relationship between genes, proteins, chromosomes, and cells.

Answers

Answer:

Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.

Explanation:

Genes are segments of DNA that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.

What are chromosomes?

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.

The term chromosome comes from the Greek words for colour (chroma) and body (soma). Scientists gave this name to chromosomes because they are cell structures, or bodies, that are strongly stained by some colourful dyes used in research. The unique structure of chromosomes keeps DNA tightly wrapped around spool-like proteins, called histones.

Without such packaging, DNA molecules would be too long to fit inside cells.

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Which jobs does an animal's skeletal system do?

Answers

Answer:

"The Skeletal system has three very important jobs: Support, protection, and movement. Just think, if we did not have a skeletal system for support we would be just like a blob of Jell-O. The bones also protect many organs, and also the brain."

Explanation:

Many animals, like mice, ______ when they sense danger. run, freeze, eat, hiss.

Help! My FREEZE answer was graded CORRECT ?!
This question has already been answered twice, a lot, for both Run AND Freeze so I need to ask again!!
My cousin had this same question from another curriculum provider at a lower grade level and her correct answer was run!!!!
You'd think anything would run is common sense! But....My question depends on what curriculum is given!
MY correct answer for my question was from biology unit 3, assignment 2, Animal Behavior and Interdependencies, printed page 3, under AVOIDING CAPTURE section, video transcript, part 1, right after 1st image, sentence " Many animals will freeze up if they hear an unfamiliar sound or feel or smell an approaching predator." and THAT'S what my ody ssey question wanted as the correct answer. Wow! So my question is... who's curriculum and test wants the run answer?

Answers

Answer:

Run

hope it will help you

Please help I’ll give brainliest to whoever’s right

Answers

Answer:

This is confusing I think theres missing info. Sorry

Explanation:

__________ are vents in lava, or pyroclastic flow, that allow gases to escape.
A)
Lahars
B)
Tsunamis
C)
Tephras
D)
Fumaroles
E)
Windbreaks

Answers

Answer:

D

Explanation:

fumaroles

When blood is drawn from your arm, what type of vessel does the phlebotomist use? Why?

Answers

Answer:

1. Median cubital vein A superficial vein, most commonly used for venipuncture, it lies over the cubital fossa and serves as an anastomosis between the cephalic and basilic veins. 2. Cephalic vein Shown in both forearm and arm, it can be followed proximally where it empties into the axillary vein.

Explanation:

What are three types of devices for measuring precipitation?

Answers

Answer:

rain gauge, snow gauge...

What is the role that genes play in making proteins?

I need answers like asap plz help

Answers

The general portions!

Drinking too much water during exercise can cause a condition in which the concentration of sodium in the blood is lower
than normal.
What immediate response would the blood cells have in this condition?
Cells swell as water moves into them.
Cells swell as water moves out of them.
Cells shrivel as water moves out of them.
Cells shrivel as water moves into them.

Answers

Answer:

c. Cells shrivel as water moves out of them.

Explanation:

right on edge 2021

We have that the right behavior of the cell in a situation where excess water enters the cell is

Cells swell as water moves into them.

Option A

Water

Generally Water is Good for the body, But excess of water has its own adverse effect .

Sodium wash away in the blood causes hypo tonic solution in comparison to blood cell.

Therefore, on the count of excess water entering into to the blood cells, the cells tends to rise or swell as water enters into them.

Cells swell as water moves into them.

Option A

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Imagine you could shrink to the scale of the tiny particles that make up matter and move around in a cup of hot chocolate. Write about or draw (and then upload) what you would experience.

Answers

Answer:

can you make my friend............

What type of duck only has 2 legs DONT LOOK IT UP

Answers

Answer:

dont all ducks have 2 legs?

A certain species of caterpillar has bright colors that signal that it produces a
highly poisonous substance. Why is this signal important to natural
selection?
A. Predators will know that this caterpillar is a good source of food,
B. Predators that ignore the markings will die from the poison.
C. The bright colors help the caterpillars find each other and mate,
ОО
D. The bright colors will make it easier to find this caterpillar.

Answers

Answer:

D. Predators that ignore the markings will die from the poison

Explanation:

The rest of the answers would be negative attribute of the bright colors. Though C may seem correct, the trait of being highly colorful to signal poison has been seen in many other species of animals as well.

ANSWER THIS ASAP!!!!!!

what impact do you think the flooding river will have on the surrounding landscape​

Answers

Explanation:

erosion

lossing of fine sidement

Floods Cause Sedimentation and Erosion riverbanks and forcing them to collapse, for instance, floodwater also can change the terrain. Floodwater suspends silt within the water as it drags debris from the eroding banks, which may deteriorate the water's quality and cause toxic algae blooms.

What about floods?Floods, the foremost common sort of natural disaster, happen when an more than water submerges normally dry ground.Floods are typically caused by lengthy, intense rain, rapid snowmelt, storm surges from tropical cyclones, or tsunamis in coastal areas.Flooding often happens when heavy rain falls for an extended period of your time over a short period of time, or when a river or stream overflows due to an ice or debris trap. Flooding also can happen when a levee or other water-controlling structure, sort of a dam, fails. Loss of human life is one among the negative outcomes of flooding. Infrastructure and property destruction. Dangers of landslides, erosion, and road closures. Damage of crops and loss of livestock.The most vulnerable areas to flooding are river floodplains and coastal regions, although flooding can also happen in places with exceptionally lengthy periods of heavy rain. These have the potential to harm coastal food supplies, limit coastal production, and deteriorate aquatic habitats.

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flammability is a measure of how easily something burns. is this a physical or chemical property? explain, using an example

Answers

Answer:

chemical property

Explanation:

Wood is a flammable substance.  Depending how dry it is will determine its flammability or what temperature it will burst into flame.  Burning wood undergoes chemical property changes:  the brown hard wood becomes a black pile of ashes.

Three cells that each has a diploid number of 32 go through meiosis. How
many cells result and how many total chromosomes are in each cell?

Answers

Answer: 6 cells, 16 chromosomes each.

Explanation:each cell, after meiosis produces two haploid cells.

three diploid cells (2n=32) after meiosis give six haploid cells

Can somebody help me on this question for BRAINLIEST please?

Answers

Answer:

D. all of the above

Explanation:

por que si

I’m pretty sure it All of above
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