Describe what defines a factor that is tested in a controlled experiment

Answers

Answer 1
The changes. You are measuring change. It could be Temperature, height, or any other form.

Related Questions

Name 2 places were Archaebacteria can live

Answers

They live in the anoxic muds of marshes and at the bottom of the ocean, and even thrive in petroleum deposits deep underground.

Answer:

such as volcanic vents

at the bottom of the sea

boiling mud around volcanoes

hot springs

what does dna contain to make a new cell

Answers

Answer:

Explanation:

All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information. It is often compared to a blueprint, since it contains the instructions to construct other components of the cell, such as proteins and RNA molecules.

Answer:

A cell nucleus.

Explanation:

That is where the DNA divides into two.

What is the sun made up of?

Answers

Answer:

Mostly hydrogen, some helium too and small amount of oxygen, carbon, neon, nitrogen, magnesium, iron and silicon

suggest why a laborer needs more energy in a day than a office worker​

Answers

Answer:

a laborer is someone who constantly does physical work which exerts more energy then doing paper work or just work in general in an office so the laborer needs more energy to do the hard physical work then the office worker

Answer:

 A labor requires more energy to continuously do work whereas an office worker does work from a single place, the sedentary work environment of an office worker requires less energy and hence less carbohydrates.

hope it help mark as brainlist

All cells contain _______, ________, and __________



1) cytoplasm, membranes and genetic material

2) membrane, genetic material and chloroplasts

3) cytoplasm, genetic material and cell wall

4) cytoplasm, membrane and water vacuole

Answers

the answer is letter A

Although cells are diverse, they all have certain parts in common: plasma membrane, cytoplasm, ribosomes, and DNA.

Identify an organization whose mission is to preserve natural habitats.

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Answer:

Defenders of Wildlife

Explanation:

founded in 1947, dedicated to protection and restoration of imperiled species.

Atoms of the same element that differ in the number of neutrons they contain are called

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Answer:

isotopes

Explanation:

Atoms in a chemical element that have different numbers of neutrons than protons and electrons are called isotopes. The atoms in a particular element have an identical number of protons and electrons but can have varying numbers of neutrons.

hope this helps!!!

According to US Energy Information Administration data, urban U.S. households own an average of 1.8 vehicles each, compared with 2.2 for each rural household. Urban families also drive about 7,000 fewer miles annually than their rural counterparts, saving more than 400 gallons of gasoline and roughly $1500 at current gas prices. What is one reason for these differences?

Answers

Answer:

transportation

Explanation:

looking at nighttime satellite photos that show dark landscapes illuminated by glowing urban dots. On the surface, these seem like clear evidence of city dwellers' oversized energy footprints.

And when comparing big cities and small towns directly, a Philadelphia, Pennsylvania, obviously dwarfs the power consumption of a Philadelphia, Tennessee Urban and rural populations use energy differently, though, which complicates such broad comparisons.

Despite hosting regular traffic jams, cities win the head-to-head efficiency matchup in transportation thanks to their mass transit systems and denser layouts, which promote walking and bicycling. Small-town and suburban residents usually have to drive themselves to get around, which isn't cheap.

According to EIA data, urban U.S. households own an average of 1.8 vehicles each, compared with 2.2 for each rural household. Urban families also drive about 7,000 fewer miles annually than their rural counterparts, saving more than 400 gallons of gasoline and roughly $1,300-$1,400 at current gas prices.

( I hoped this helped! :D )

Answer:

Urban populations make use of mass transit.

Explanation:

Urban populations make use of mass transit. This cuts down drastically on the amount of money spent on gasoline and auto maintenance.

Both lipids and carbohydrates can be used by the cell as
A
sources of energy.
B
replacements for salts.
с
building blocks for RNA
D
catalysts for metabolic reactions.

Answers

Both lipids and carbohydrates can be used by the cell as sources of energy.

How do cells use lipids carbohydrates and proteins for energy?

Carbohydrates are used for energy (glucose).

Fats are used for energy after they are broken into fatty acids.

Protein can also be used for energy, making hormones, muscle, and other proteins. Broken down into glucose, used to supply energy to cells.

Thus, Both lipids and carbohydrates can be used by the cell, the option

"A" is correct.

To learn more about lipids and carbohydrates click here:

https://brainly.com/question/6664288

A worm would stand a poor chance of being fossilized because ________.
A) worms have been rare during the geologic past
B) worms have no hard parts
C) worms contain no carbon-14
D) all of these

Answers

B The worms have no hard parts.

The worm is made up of all soft tissue which makes it much harder to help preservation.

A worm would stand a poor chance of being fossilized because  worms have no hard parts.

What is fossil?

An animal or plant from a previous geologic era that has been preserved in the Earth's crust as a fossil, remnant, impression, or trace. The main repository for knowledge regarding the evolution of life on Earth is the complex of information preserved in fossils found all across the world.

Only a small percentage of extinct species have been preserved as fossils, and often only those with a sturdy skeleton are capable of doing so. A calcareous skeleton or shell is present in the majority of major groups of invertebrate creatures (e.g., corals, mollusks, brachiopods, bryozoans).

Other types have silicon dioxide or calcium phosphate shells (both of which are found in the bones of vertebrates). A fast burial following deposition may leave these in a shell or bone.

Therefore, A worm would stand a poor chance of being fossilized because  worms have no hard parts.

To learn more about fossil, refer to the link:

https://brainly.com/question/2102679

#SPJ2

2. Science begins with an

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Answer:

the answer is...

they start with observations on the object, then make a hypothosis!

  hope this helps:)

Explanation:

List 3 things you have learned from the state officer visit.

Answers

Well state officers teach you many skills, like self defense , firearms training, and first aid skills and knowledge hope i helped.

Why were the modern constellations not added by the ancient astronomers

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As astronomers studied the night sky with modern telescopes, they were able to discern stars in the dark spaces around the constellations — stars that were not part of the original star pictures. You can see some of these stars by observing the sky on a dark night.

When working with bacteria, you will --
O only culture known, nonpathogenic bacteria
O only culture pathogenic bacteria.
O dispose of the bacteria by taking them home with you.
O contaminate all cultures.

Answers

Answer:

Only culture known, nonpathogenic bacteria.

Explanation:

Pathogenic Bacteria is bacteria that can cause diseases, so if you culture a pathogenic bacteria you could cause an out-break of a disease or illness.

Culturing is the process of basically expanding a bacteria, or making a family that reproduces itself, so you would want a disease or fatal bacteria to reproduce, causing an outbreak.

Draw a flowchart that explains how Tom’s nervous system controls his actions. As part of the flowchart, write one or two sentences describing how the nervous system is involved in each of these steps:

Tom steps into the haunted house.
Tom feels his heart pumping and his breathing speed up.
Tom jumps when he sees the costumed character.
Tom runs out of the haunted house.

Answers

Answer:

Tom’s brain makes a voluntary decision to walk into the haunted house. His brain communicates  this message to his skeletal muscles, so he can step inside.

Tom’s sympathetic nervous system causes a fight or flight response, resulting in his increased  heart rate and breathing.

Tom is startled when a costumed character jumps out at him. His reaction is a reflex caused  by his nervous system.

Tom’s brain makes a voluntary decision to run out of the haunted house. His brain communicates  this message to his skeletal muscles.

Explanation:

Answer:

Tom’s brain makes a voluntary decision to walk into the haunted house. His brain communicates this message to his skeletal muscles, so he can step inside. > Tom’s sympathetic nervous system causes a fight or flight response, resulting in his increased heart rate and breathing. > Tom is startled when a costumed character jumps out at him. His reaction is a reflex caused by his nervous system. > Tom’s brain makes a voluntary decision to run out of the haunted house. His brain communicates this message to his skeletal muscles.

Explanation:

The leafy sea dragon is able to _________ itself.

Answers

Slow-swimming I hope this helps

Every cell has a cytoplasm

Answers

Answer:

yes. but what are you asking

yes, they do all have cytoplasm

which helath professionals are least likely to face risk factors in their work that could increase their chances of getting cancer?
A.Scientists who work with toxic chemicals
B. Therapists who operate radiation machines
C. Nurses who treat patients with viral infections
D. Researchers who study DNA replication

Answers

I hope you can understand why the answer is D!
All of the choices are dangerous except that

Pollution
10. Discuss why people choose to pollute the environment instead of being environmentally friendly.
11. In this situation identify the "commons"
I can’t find the answer to the second question in this article called tragedy of the commons by garrett hardin 1969

Answers

Answer:

Explanation:

I found an exaple

Solutions to the tragedy of the commons include the imposition of private property rights, government regulation, or the development of a collective action arrangement. Historical examples of tragedies of the commons include the collapse of the North Atlantic Cod fisheries and the extinction of the dodo bird.

maybe this well help as well

human activity is causing environmental degradation, which is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution.

List 3 Examples of data that are both quantitative and qualitative.

Answers

Answer:

qualitative data - Hair color , Blood type Ethnic group

quantitative data - number of students in class , height , weight

Explanation:

hop it helps

Qualitative Data: The drawer is brown, the ball is black, the doll has long hair

Quantitative data: The drawer has 4 shelves, the ball weighs six pounds, the doll has exactly 36 strands of hair

Feral cats kill large numbers of native wildlife in Australia. One feral cat can
kill up to 50 native animals in one night. Which technology would allow
environmental scientists to take pictures of the cats' nighttime activities?
A. Environmental DNA (EDNA) surveillance
B. Acoustics
0
C. Gel electrophoresis
0
D. Unmanned aerial systems (UAS)
SUBMIT

Answers

Answer:

D. Unmanned aerial systems (UAS)

Explanation:

Answer:

Unmanned aerial systems (UAS)

Explanation:

AP3X

4. How have the xylem vessels allowed plants to adapt to living on land?



Answers

Answer:

Plant adaptations to life on land include the development of many structures a water repellent cuticle, stomata to regulate water evaporation, specialized cells to provide rigid support against gravity, specialized structures to collect sunlight, alternation of haploid and diploid generations, sexual organs.

Explanation:

brainliest plz :)

HELP ME PLZ .I HAVE ONLY 10 minutes
They have been stuck in this puddle for awhile. Why has not the water percolated?

A.They can’t soak into the street since it is made of stone.

B.The sun isn’t shining, so they can’t go up into the sky.

C.They are not on a hill, so they can’t flow downhill

Answers

It depends if it is mud it is A, but if it is water the answer is B



It is January and Haley, Sarah and Becky are tired of having cold feet while waiting for the school bus to come in the morning. They

all wore nylon socks, and thought that a material such as wool would be better at keeping their feet warm. They decided to design an

experiment to test the effectiveness of wool, cotton and nylon as insulators. They fill identical bottles with 200 ml of water at 100 C

and place inside each sock

What observation is being made?

Answers

Answer:

Which material keeps the water the warmest after a period of time. Or it could be the temperature of the water after a period of time

Which scenario would most likely result in cooperative hunting?
Finches eat grass seeds, but grass seeds are not found in an area during winter months.
A shark eats a certain kind of fish, and the fish swim together when the shark comes close.
Wolves eat rabbits, and the number of rabbits in an area is low.
Lions eat zebra, and there are a lot of zebra and lions living in an area.

Answers

Answer:

C. Wolves eat rabbits, and the number of rabbits in an area is low.

Explanation:

Cooperative hunting is a form of animal social behavior that is found common among predators mostly faced with a challenge of effectively finding prey to prey on easily. It involves the cooperation of a group of an animal species that cooperate together to effectively increase their chances of catching preys as well as increase their survival chances in such territories.

A scenario that would most likely result into cooperative hunting is where there are few and limited number of rabbits in an area, and as such, it is difficult to hunt rabbits due to scarcity. In order to increase their chances of catching rabbits, wolves in that area would cooperate together and hunt in packs. This will increase the number of kills they'd make when compared to hunting individually. This ensures there is availability of food to eat and also ensures their survival as a group.

Which term refers to a variable that is not allowed to change during an experiment? O A. Random variable O B. Dependent valable O C. Hypothetical variable D. Controlled variable​

Answers

Answer:

controlled variable

Explanation: i know this bc i just got it wrong lol

What are the sources of energy for the processes that affect Earth?​

Answers

Answer: ok so Most of the energy in the Earth system comes from just a few sources: solar energy, gravity, radioactive decay, and the rotation of the Earth. Solar energy drives many surface processes such as winds, currents, the hydrologic cycle, and the overall climate system. Gravity makes rivers and other materials flow downhill and creates tides (from the Moon's gravitational pull). Radioactive decay creates heat in the Earth's interior, while Earth's rotational forces influence currents of air and water.

Explanation:

Protons have a positive charge, electrons have a negative charge, and neutrons have no change. Given
information, if an atom is comprised of 5 protons, 4 electrons, and 5 neutrons, what is the charge (if any)
on this molecule?
A.It does not have a charge because there are equal amounts of neutrons and protons
It needs to lose a neutron and a proton so that all parts of the atom are equal
It has a positive charge because there are more protons than electrons
It has a negative charge because there are more neutrons and electrons than protons

Answers

B it needs to lose a neutron and a proton so that all parts of the atom are equal

How do you think Romeo and Juliet’s ages will influence the course of events?

Answers

Romeo and Juliet are young in Shakespeare’s Romeo and Juliet. Therefore, they play the role of being young and dumb in love. They would die for each other when they’ve only talked a few times. It influences the course of events because since they’re young, they really don’t know what they’re doing. Compared to people who are older, they would most likely think more wisely then the young Romeo and Juliet because they have most likely had more experience

How does glucose provide energy to both plants and animals?

Answers

Answer:

Explanation:

Well it is basically sugar which can be turned into energy and calories, which help sustain the organism.

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How did the management of irrigation lead to the creation of government? Given the following sets.A = {0, 1, 2, 3)B = (a, b, c, d]C = {0, a, 2, b)Find BC Which two ratios represent quantities that are proportional?A. 18/15 & 24/20B. 4/6 & 9/12C. 9/14 & 45/56D. 33/18 & 66/26 Jason jogs around a circular track at an average rate of 3 laps in 5 minutes. At this rate, how many laps can Jason complete in 35 minutes? As a result of fears regarding the Cold War, many Americans urged Congress to declare war on the Soviet Union. built bomb shelters in their backyards. supported Senator McCarthy well into the 1960s. voted for Harry Truman in the election of 1952. what is 7.8764 rounded as the nearest cent? WILL MARK BRAINLIEST! Choose True if Congress could exercise the power under the Articles of Confederation or False if itcould not. reject state laws that were in defiance of Congress levy taxes on imports raise an army by asking the states to supply troops borrow money coin money make war and peace restrict interstate trade enforce laws set up a postal department force states to repa Please try your hardest to answer :)! please help i need to get a good grade I need the answer so please help it is worth 88 points a car left skid marks 78 m long on a road as it slid to a stop. If the cars acceleration was -3.9 m/s, why was its velocity before it began to skid Which of the following are examples of positive externalities?a. You are a bird watcher, and your neighbor puts up birdhouses and gardens to attract birds.b. Your roommate is a smoker, but you are a nonsmoker.c. Investments in private education raise your country's standard of living. Which of the following is not a kind of consumer credit?a installment creditb personal loansc service creditd marginal credit Why would Chinese and Islamic nations value trade Riley is building a garden box for his backyard. He wants the perimeter to be 32ft long. If he makes the width 6 ft, what will be the length of the garden box?ft top food allergens are 01Fill in the blanks: Le vaisseau estles extra-terrestres sontet le fusil estO vert/jaunes/rougejaune/verts/rougeO vert/verts/jauneO rouge/verts/jauneMark this and retumSave and Fyit What are 3 examples of parasitism The notion of a city upon a hill within the passage is best defined asA model for an ideal Christian society and rightful living for the rest of EuropeOA model society for the purpose of freedom of religion and religious practiceO A high elevation settlement to avoid the troubles of disease that the Virginia colony experiencedO A model utopian society centered around strong Christian values that would serve as an example to theworld please help !!! 3x+8yx = 7 y = -2