An experiment that has only one variable changed

Answers

Answer 1
a controlled experiment

Related Questions

Select the correct answer.
Which is the correct definition of a large animal?
O A.
an animal that lives outdoors
OB.
an animal used for food, farming, or agriculture
OC. an animal of a large size that needs daily care
OD. an animal that needs large farms

Answers

Answer:

OC is the correct answer

Question 4 of 10
How would increasing the amount of water in blood affect blood pressure?
OA. Blood pressure would decrease
B. Blood pressure would stay the same
O C. Water is not related to blood pressure
OD. Blood pressure would increase
SURMIT

Answers

Answer:

The answer is D: The blood pressure would increase.

Explanation:

When humans plant more trees, carbon can begin entering the _______________ as carbon dioxide.

Answers

Answer:

Hydrosphere, geosphere or biosphere

Explanation:

Help please . when and where would you expect to find the highest rate of primary productivity?
o a. in the temperate regions during the summer months
o b. in the polar regions during the summer months
c. in the polar regions during the fall
o d. in the tropics during the fall

Answers

Expected to find the highest rate of primary productivity in the tropics during autumn

In which ecosystems is primary productivity highest?

The more sunlight the system receives, the greater the productivity. Thus, in tropical regions — where there is more sunlight and temperatures are higher throughout the year — productivity is higher than in places with a

temperatecold or polar climate.

With this information, we can conclude that Expected to find the highest rate of primary productivity in the tropics during autumn

Learn more about primary productivity in brainly.com/question/14017102

#SPJ1

What is scientific learning?​

Answers

Answer:

Scientific literacy means that a person can ask, find, or determine answers to questions derived from curiosity about everyday experiences. It means that a person has the ability to describe, explain, and predict natural phenomena.

Scientific learning is the ability to ask, find, or determine answers to questions arising from everyday experiences. It denotes the ability to describe, explain, and forecast natural phenomena.

Where is the nucleus usually located?
A. outside of the cell
B. in the center of the cell
C. moves between cells

Answers

Answer:

B

Explanation:

usually in the center . depends on what cell prokaryotic or eu

in the center of the cell

Compare the use of RFLP to PCR in the study of DNA. What is one difference between these two methods?
A. RFLP is one of the newest methods used; PCR is one of the oldest.
B. RFLP is considered by scientists to be more useful than PCR.
C. RFLP is better to use with samples that have mold on them than PCR.
D. RFLP requires larger samples of DNA than PCR requires.

Answers

The one difference between RFLP and PCR is that RFLP requires larger samples of DNA than PCR requires.

What is RFLP and PCR?

Restriction fragment length polymorphisms, or RFLPs, are differences among individuals in the lengths of DNA fragments cut by enzymes.

Polymerase chain reaction, or PCR is a technique in molecular biology for creating multiple copies of DNA from a sample.

These two techniques are used in the study of DNA, however, one difference between RFLP and PCR is that RFLP requires larger samples of DNA than PCR requires.

Learn more about RFLP and PCR at: https://brainly.com/question/19670710

#SPJ1

Understand biological structures and the different human body systems

Answers

Answer:

The nine major organ systems in the human body are the integumentary system, the musculoskeletal system, the respiratory system, the circulatory system, the digestive system, the excretory system, the nervous system, the endocrine system, and the reproductive

hope it helps you

Which claim is most likely to be based on pseudoscience A. The arrangement of the stars can bring you good luck B. The color of light from a star can tell you how old it is C. The planets in our solar system move around the sun D. The volume of gas will increase if you heat the gas

Answers

The claim 'The arrangement of the stars can bring you good luck' is most likely to be based on pseudoscience.

What is pseudoscience?

Pseudoscience is defined as knowledge that is not obtained or derived from using the scientific method.

From a scientific perspective, the type of knowledge derived from pseudoscience cannot be verified and therefore is meaningless.

In conclusion, the claim 'The arrangement of the stars can bring you good luck' is most likely to be based on pseudoscience.

Learn more about pseudoscience here:

https://brainly.com/question/604092

#SPJ1

Energy in this ecosystem passes directly from the sun to.

Answers

Answer:

Through photosynthesis, certain organisms convert solar energy (sunlight) into chemical energy, which is then used to build carbohydrate molecules. The energy stored in the bonds to hold these molecules together is released when an organism breaks down food. Cells then use this energy to perform work, such as movement.

Explanation:

brainlist pls thangks

Jayden is researching the Earth's
plates. How would he describe the
relationship between the Earth's plates
and soil and rocks?

Answers

Answer:

Geologists have hypothesized that the movement of tectonic plates is related to convection currents in the earth's mantle. Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat.

The Earth's plates have a crucial relationship with soil and rocks. This connection is characterized by the plates' movement influencing the formation, distribution, and composition of soil and rocks across the planet.

The asthenosphere, which is semi-fluid beneath them, is separated into many tectonic plates that make up the Earth's lithosphere. Convective currents in the mantle cause these plates to move constantly. Processes like subduction, in which one plate falls beneath another, and rifting, in which plates move apart, are fueled by this movement. Mountains, valleys, and oceanic basins are all the result of these dynamic processes, which have a significant impact on the surface of the Earth.

Through volcanic activity and metamorphism, interactions between the plates also aid in the production of different types of rocks. Therefore, the distribution and makeup of soils and rocks on our globe are significantly shaped by plate movement, which also has an impact on landscapes, ecosystems, and geological characteristics.

To know more about Earth's plates here https://brainly.com/question/10508547

#SPJ3

What adverse effects does covering the land with concrete and asphalt create?
Vegetation and trees cannot grow.
The flow of water in rivers is changed.
Non-native species are introduced to a foreign environment.
Natural resources are depleted.

Answers

Adverse effects of covering the land with concrete and asphalt is Natural resources are depleted.

Asphalt is a petroleum-based product. Concrete requires rock, sand and a fabricated cement component to strengthen the material hold the pavement material.Fortunately, industry innovation has led to meaningful progress toward resource conservation.Road construction companies have developed ways to reuse existing concrete and asphalt by remixing it materials.

Learn more about Asphalt and concrete effect on environment here:

https://brainly.com/question/14718527

What is the largest species of sea turtle in the world.

Answers

Answer:

The leatherback turtle

Explanation:

The Leatherback is the largest sea turtle existing today, which can reach up to 2000 pounds in weight and 8 feet in size.

The process whereby cells begin to specialize, at about the eight-cell stage, is called: Please choose the correct answer from the following choices, and then select the submit answer button.

Answers

The process by which cells begin to specialize, at approximately the eight-cell stage, is called morula.

What happens in the morula stage?

At this point, the embryo as a whole maintains the same size, that is, the newly formed daughter cells are smaller than the cell of origin. In the morula stage, the embryo differentiates into two cell groups located in the outer layer and the intern embryo.

Morula is the name given to the fourth stage of cell segmentation after fertilization of the egg.

With this information, we can conclude that the process by which cells begin to specialize, at approximately the eight-cell stage, is called morula.

Learn more about Morula in brainly.com/question/11893522

#SPJ1

does anyone know how to do this ? You are a bio-researcher on the planet Tawniwani, and you have been given the task of identifying and classifying the native fauna. Use this dichotomous key to identifyTawniwanian creature t.

Answers

A dichotomous key is a classification tool used to identify organisms based on morphological or behavioral characteristics. Individual C is a Roundus tricurlus.

What is a dichotomous key?

A dichotomous key is a significantly useful tool to classify organisms.

If you have an organism -or part of it- and you need to taxonomically identify it, you use a dichotomous key.

The key provides an easy and fast way for identification by describing different morphological or behavioral traits, leading you to the correct taxonomic classification.

The term dichotomous refers to how information is provided.

You will always have two options per feature (a and b, or 1 and 2), and you will have to choose one of them according to the characteristics of your organism.

Once you choose one of the options according to your organism, the key leads you to the following description, and you will have to choose one of the options again.

You will repeat this until you reach the name of your organism.

The key describes only specific traits that are useful for differentiation.

In the exposed example, for instance, we need to know the name of the individual C.

Step 1

The first description is about the head size. The key asks you if the individual has a small or a large head. It has a small head, so the key tells you to move to description 2.

1a. Has a small head--------------------------- go to 2

1b. Has a large head--------------------------- go to 3

Step 2

The second description is about the body shape. The key asks you if your organism has a narrow or a rounded body. And this individual has a rounded body, so the key tells you to move to description 7.

2a. Has a narrow body ------------------------ go to 6

2b. Has a round body -------------------------- go to 7

Step 3

The seventh description is about antennae. Does your individual have curly or straight antennae? It has curly antennae. You have reached your organism's name. It is a Roundus tricurlus.

7a. Has a curly anteanne ------------------------ Roundus tricurlus

7b. Has a straight antennae--------------------- go to 8

Individual C is a Roundus tricurlus.

You can learn more about dichotomous key at

brainly.com/question/2235448

brainly.com/question/16522014

brainly.com/question/18335862

#SPJ1

Determine which of the following statements is true about energy in ecosystems.
A. Primary producers lose 20% of the energy they absorb as urine and feces.
B. Consumers pass on 20% of the energy they get from a lower trophic level.
C. Primary consumers lose 60% of the energy they absorb from producers as urine and feces.
D. 10% of the energy Primary consumers absorb is lost as heat.

Answers

The community along with the biotic and abiotic factors makes the ecosystem. In the ecosystem, 10% of the energy primary consumers absorb is lost as heat. Thus, option D is correct.

What is an ecological pyramid?

An ecological pyramid is the graphical presentation of the organism and the flow of energy at each trophic level. The trophic level constitutes the producers and the consumer.

The flow of energy follows the 10% energy rule where each trophic level loses and gains only a certain amount of heat. The heat is lost as excretory products in the environment.

The maximum amount of energy is gained by producers which passes to the primary consumers (10%), secondary consumers (1%), and the upper trophic level.

Therefore, option D. primary consumers absorb only 10% of energy.

Learn more about the ecological pyramid, here:

https://brainly.com/question/12420153

#SPJ2

explain why the metric system and si are important​

Answers

Answer:
In simple terms, the metric system (which is the same as SI) is important because it's more coherent than the imperial system.

Explanation:

The metric system is far more used worldwide compared to the imperial system, where the imperial system is only officially used in three countries (U.S, Liberia, Myanmar).

There are multiple reasons why the metric system is important, but the most critical reason is that it's very easy to understand pertaining to calculations. The measurement system of SI is designed to make measurements/calculations easy to perform and understand. This is why scientists prefer using the metric system over imperial.

You can make some small comparisons:

--> Metric is consistently based on decimal numbers, while imperial uses different number systems (base 3, 8, 12, 14, 16, etc.,)
--> Metric works well with percentages, while imperial does not
--> Metric units are the same internationally, while some imperial units differ (i.e different pints, gallons, tons, etc.,)

There are fewer, simpler measurements in the metric system as compared to imperial where calculations start to get overcomplicated due to the amount of measurements/units in the system.

In layman's terms... metric is a boat on smooth water with perfect weather, while imperial is a boat on rough waters during a storm.

1. A new species of multicellular, eukaryotic heterotrophs is discovered. This species secretes digestive enzymes to digest its food externally. Which taxa would this organism belong to?

A.
domain Archaea

B.
phylum Platyhelminthes

C.
kingdom Fungi

D.
kingdom Animalia

2. Mammals and reptiles both belong to the amniote clade. What is the evolutionary significance of this clade?

A.
Amniotes produce membranes that allow them to reproduce without laying eggs in water.

B.
Amniotes produce milk to feed their offspring.

C.
Amniotes were the first vertebrates to evolve limbs specialized for living on land.

D.
Amniotes were the first vertebrates to evolve jaws for digesting the tough food found on land.

3. Which of the following is an example of negative feedback leading to homeostasis?

A.
a sponge conforming its internal salt concentration to match the salinity of its environment

B.
a frog slowing its metabolic rate while hibernating over the winter

C.
a cat’s uterine contractions increasing in strength as it gives birth to a litter of kittens

D.
a human sweating to reduce his or her body temperature on a hot day

Answers

2.In the evolutionary process, mammals and reptiles evolve Amniotes produce membranes that allow them to reproduce without laying eggs in water.

What are aminiot animals?

Amniote animals are those that have amnion surrounding the embryo, while non-amniotes do not have this membrane.

3.Homeostasis in environments can have as a negative example a sponge conforming its internal salt concentration to match the salinity of its environment.

By saving too much the marine environment limits the lives of other animals causing them to migrate in this way, there will be a collapse in the food chain.

See more about evolution at brainly.com/question/13492988

#SPJ1

During respiration, what do consumers such as animals release?.

Answers

Answer:

carbondioxide

Explanation:

during respiration consumers release carbondioxide an inhale oxygen

How many independent variables should you test at a time?

A two

B one

C as many as you want

D three

Answers

Answer:

b - one

Explanation:

testing only 1 independent variable at a time ensures that one factor causes a change in your dependent variable

testing more than 1 makes it unclear which independent variable caused a change in the dependent variable

b fsss trust me and the last answer

How do pollutants add to the problem of plastic in the ocean?

Answers

Answer:

Sea creatures will choke on it and suffers and die and it could make the water brown/unhealthy and sea creature may get stuck in the junk and die after that way.

The typing of human blood is determined by three alleles: A, B, and O. Alleles A and B are codominant to one another and O is recessive to both alleles, A and B.
AA/ AO – type A blood, AB – type AB blood, BB/ BO – type B blood, OO – type O blood.
A woman who is homozygous for type B blood marries a man who is heterozygous for type A.

What is the genotype ratio of their offspring?
What is the phenotype ratio of their offspring?

Answers

Answer:

genotype ratio = 1AB:1BO

phenotype ratio = 1 type AB blood: 1 type B blood

The nervous system is responsible for all of the following except which of these?

1.producing red and white blood cells

2. sensing external stimuli

3. connecting sensory and motor neuron signals

4.controlling automatic body processes, such as breathing

Answers

Answer:

1.producing red and white blood cells

This is done by bone marrow and other organs.

Answer:

1.  Producing red and white blood cells

Explanation:

Blood cells are not part of the nervous system and are not produced by the nervous system.

Which of the following is a scientific observation about the bird pictured
below?
Scarlet ibis
A. The pink feathers are especially beautiful.
B.The long beak helps the bird eat insects.
C.The scarlet ibis is the national bird of Trinidad.
D. The bird's features are red.

Answers

Answer: Yup, B should be correct :)

Answer:

B

Explanation:

B is the most "scientific" of the options

May I get some help with his homework question?

Answers

it helps with blending in with its environment, therefore keeping it safe from predators

Runoff from a uranium mine stockpile has contaminated the surface water in a location. This might cause health problems among people in the location. Which of these is the best plan to solve this problem? (4 points)
Plant trees around uranium mines to absorb contaminants.
Put fences around uranium mines to check the flow of contaminants.
Wear protective clothing for prevention against harmful effects of radiation.
Collect the runoffs in retention ponds for isolation and recovery of contaminants.

Answers

The best best plan to solve the problem of contamination in the surface water is to collect the runoffs in retention ponds for isolation and recovery of contaminants.

What is surface runoff?

Surface runoff is an overland flow of excess water (with or without accumulated contaminants) that cannot be absorbed by the ground as infiltration.

According to this question, runoff from a uranium mine stockpile has contaminated the surface water in a location. This might cause health problems among people in that region.

However, one way to curb the problem of contamination in the surface water is to collect the runoffs in retention ponds for isolation and recovery of contaminants.

Learn more about surface runoff at: https://brainly.com/question/14225734

#SPJ1

If you were building a swimming pool in your yard, what two metric units would be BEST suited for the measurements?
centimeters and kiloliters
meters and kiloliters
kilometers and milliliters
decimeters and deciliters

Answers

Answer: Meters and Kiloliters

Answer: meters and kiloliters

Explanation:

The graph shows the supply and consumption of forests when the consumption rate and population growth rate are both low.
what does the graph predict for the future? A Less air pollution.
B Forest overgrowth.
C Reduced demand.
D Resource depletion.

Answers

The graph predict resource depletion because the supply and consumption of forests when the consumption rate and population growth rate are both low.

What are the consequences of the depletion of natural resources?

The consequences of this ecological excess are increasingly evident, with imbalances such as the extinction of species, scarcity of fresh water, soil erosion, loss of biodiversity and global warming.

Reaching this limit means that all the resources used for the survival of humanity are depletion and we are in “debt” to the planet, in this case it is the graphic representation of this depletion.

See more about depletion at brainly.com/question/11318086

#SPJ1

AID (Acquired Immune Deficiency Syndrome) affects red blood cells.
True
False

Answers

Answer:

False, it's stands for Acquired Immunodeficiency Syndrome

calcium iron vitamin c and vitamin d in which of these is organic substances​

Answers

Answer:

vitamin C and vitamin d

Explanation:

because if the digested first only no vitamin it's supply to our body

examples like eggs

Other Questions
Description of Activity: Given the following cases below, how will you handle the different situations. Write it down and cite a Psychological theory that will be your guiding principle in dealing with each case.CASE SCENARIO 1 You are one of the school counselors at Batangas National High School. Your caseload includes Sarah, a seventh grader. She was referred to you by her classroom teacher. The teacher has concerns regarding Sarah due to Sarahs recent change in behavior. Historically, Sarah has been a top student and is very outgoing. Sarah is a member of honor society, plays JV basketball, and is a member of the Drama team. Upon her return from summer break, Sarah was noticeably withdrawn and her grades began to drop. She has withdrawn from the Drama team and she seems to have lost interest in basketball. The teacher shared that at a recent parent/teacher conference the parents did not seem concerned about Sarahs behavior changes but rather focused their attention on Sarahs basketball performance. The teacher also informed you that he had tried to connect with Sarah to talk about his concerns but when he tried to do so, Sarah became angry, burst into tears, and stormed out of the room. Sarah has agreed to meet with you upon the encouragement of her parents under the auspice that you will help her with her basketball performance issues. CASE SCENARIO 2Chad is a 9 year old Chinese-Filipino, high school student, who was diagnosed with Cystic Fibrosis when he was 3 months old. While growing up, he has been required to go to the hospital every other month. He now only has to go about once or twice a year. Chad comes into see you at his moms request. His mom, Sylvia, is concerned about the fact that Chad is refusing to take his medication. She has noticed that Chad is starting to cough more and gets exhausted much easier. He stopped taking the medication about two months after Kyle, a friend that Chad had met in the hospital, died. Chad had maintained a friendship with Kyle for about 2 years. Chad respected Kyle because he was one of the few people who didnt consider him a foreigner, a common occurrence despite the fact that his ancestors immigrated to the Phil. in the late 1800s. Kyle had been waiting for a lung transplant, and Chad had observed him rapidly decline in health. Chad refused to discuss Kyles death with his mother. And recently, there were long periods of time when he wouldnt speak to her at all. In a phone conversation with Sylvia, you learned that after Kyles funeral, Sylvia had hoped that Chad could spend the summer with his father (Kevin) and older brother David (15) who live in another state. Kevin owns a small car dealership and David works with him detailing the cars on the lot. The dealership has been successful enough to pay for the numerous surgeries and maintain both middle class households. Kevin and Sylvia divorced when Chad was 6. When Sylvia discussed the idea of Chad coming for the summer, Kevin said he didnt feel it would be a good idea because of animosity between David and Chad. In the initial session, Sylvia explained that David has always felt that I favored Chad because I spent so much time with him. I had to because of his health, but there still is a lot of jealousy. Please help.(check image) find the values of yy =225 The perimeter of a rectangle is 50 inches. Its widthmeasures 11 inches. What is its length?Let x = the length of the rectangle. Choose the equation that represents thisproblem.A. 2x + 22 = 50B. 2x + 11 = 50C. x + 11 = 50D. 2x11 = 50 * dont try and be funny I need help bad* NEWS TRIBUNE 1948United StatesLaunches AirliftAid to BerlinHow did the United States demonstrate its commitment to containmentduring the event described in this headline?OA. By refusing to back down to Soviet aggressionOB. By supplying military aid to anti-Soviet rebelsOC. By welcoming armed conflict with the SovietsOD. By relying on the United Nations to defuse the situation A sample of radioactive waste has a half-live of 40 years and an activity level of 4 curies. After how many years will the activity level of this sample be 0. 5 curies? What two rules did Ralph come up with on top of the mountain in chapter 2 of lord of the flies? !!!!!100 points!!!!!!How does Shakespeare use personification, metaphor, and symbolism to develop tone in the excerpt from Julius Caesar? Remember that tone can change throughout a text, depending on what the author is trying to convey. Use evidence from the text to support your determinations about how the figurative language in the text creates tone. Your response should be at least three complete paragraphs. vWhat kind of map would need to show elevation in its legend?v You are packing for a road trip and you buy snack packages (same size, same weight) for the trip. you buy 6 potato chips, 5 doritos, and 3 corn curls. you put them in a bag and mix them up. during the trip, you reach into the bag and pull out two packages at random, one at a time. draw a tree and calculate the probability of each outcome. use p for potato chips, d for doritos, and c for corn curls. what is the probability of picking two snacks of the same type? Please show how you solved Marquis is starting a fast food job during his senior year of high school. he lives with his parents and they will claim him as a dependent on their taxes this year. he earns $2000. based on how he completed his w-4, his employer withheld $200 in federal income taxes from his paychecks. what will happen if marquis doesn't file taxes in april? * nothing will happen, but marquis will miss out on his potential refund. the irs will refund his $200 directly to him. the irs will refund his $200 to his parents. the irs will fine marquis $75 or more for not filing taxes. Who is attributed with spreading Buddhism throughout India and beyond?A. Mahabharata B. Samudra GuptaC. AsokaD. Julius Caesar If a contract is silent on _______________________, the courts will infer a reasonable time for performance. Solve question 11 for me please Solve 3x + 4x = 2. (2 points)O 2 10 6O 2+210- 3O 2+10- 3O-4 10 3 When was rocket technology develop How did the tenth amendment reduce federal overreach into the affairs of state governments? The ruana is similar to a: tablecloth coat poncho skirt If a many-to-many-to-many relationship is created when it is not appropriate to do so, the conversion to ____ normal form will correct the problem.