Which of these is purposefully changed during a scientific investigation? (4 points)

a
Test variable (independent variable)

b
Outcome variable (dependent variable)

c
Control group

d
Hypothesis

Answers

Answer 1
Either A or D I’m not 100% sure but it’s the only thing that makes since
Answer 2

Answer:

The answer is A. Test variable (independent variable)! :)

Explanation:

Hope this helps; I took the test and got it correct!!

Don't forget to mark the this Brainliest if this helped! :)


Related Questions

The biological influences on organisms within an ecosystem is known as what?
a. biotic factors
b. abiotic factors
c. natural occurrences
d. nature

Answers

Answer:

a. biotic factors

Explanation:

Biotics are organisms that have life and constitute the biota of a community. That is the plants, animals, and microorganisms of a natural system.

It is the factor resulting from the activities of a living being or of any living component in an environment, such as the actions of an organism that affect the life of another organism.

What would happen if a new cell does not contain chromosomes ( best answer with explantion will get brainliest)

a. the new cell will not have instructions on how to function
b.nothing, chromosomes are not important to cells
c. the new cell will reporoduce uncontrollably
d.the new cell wil grow but cannot duplicate itself in the future

Answers

a. the new cell will not have instructions on how to function

Because all the genetic material is stored in the chromosomes. Thus, all information is in it.

Answer:

a. the new cell will not have instructions on how to function

Explanation:

Genetic information contained within DNA molecules regulates cell growth, replication, and cell repair. The long-chain, helical macromolecules of these deoxyribonucleic acids are formed from complex sequences of nucleotide monomers- secondary strands contain a complementary sequence joined to the leading strand by hydrogen bonding.

Chromosomes are the double-stranded DNA helixes wound around small molecules called histones. Genes or sequences of DNA encode instructions for the cell, in the form of proteins. This occurs via:  the transcription processes, translation to become proteins, defining physical traits or phenotypes.

Which of the following best describes all macromolecules?
A. They are organic molecules that all contain carbon.
O
B. They are organic molecules that all contain nitrogen.
O
C. They are inorganic molecules that all contain nitrogen.
6
D. They are inorganic molecules that all contain carbon.

Answers

Answer:

A. They are organic molecules that all contain carbon.

Explanation:

All known life on earth is carbon-based. Most molecules used as building blocks are organic i.e. consisting of based on carbon. This means that they consist of atoms of carbon, hydrogen, oxygen with other variations like nitrogen.

Some macromolecules include glucose-based polysaccharides, amino-acid based proteins and lipids consisting of glycerol and fatty acids.

A student conducted an experiment with two rose plants to determine if a liquid formula for fertilizer produced greater growth than a dry formula. After testing each fertilizer on two different plants for one month, his data led to the conclusion that the liquid formula was a better promoter of plant growth. When he described his conclusion to his teacher, she told him he needed to conduct additional trials. The teacher most likely asked for additional trials because

Answers

Answer:

This question lacks options, the options are:

A) she did not believe the new formula helped plants grow better than the old formula.

B) it was necessary to see data from more plants before the conclusion could be accepted.

C) it was necessary to have tested the fertilizer on different kinds of plants.

D) she thought he should test additional fertilizer formulas on the same two plants.

The answer is B.

Explanation:

In an experiment, a TRIAL or RUN is refers to repetition of the experiment using the same procedure. A trial is done in order to ensure that the results of the experiment is not based on CHANCE but CERTAIN. It is important that before an experiment be accepted as valid, it must be able to be replicated severally.

In this case, a student conducted an experiment with two rose plants to determine if a liquid formula for fertilizer produced greater growth than a dry formula. However, after arriving at a conclusion based on his experimental results, his teacher told him he needed to conduct additional trials. This is because, according to the importance of trials above, IT WAS NECESSARY TO SEE DATA FROM PLANTS BEFORE THE CONCLUSION COULD BE ACCEPTED.

This, in essence, means the students need to repeat the test of the fertilizer formula on more rose plants.

________ cells are involved in fertilization.
a.
diploid
c.
triploid
b.
haploid
d.
all of the above

Answers

Answer:

all of the above but not sure

_: the rate at which electric charge passes a point in a circuit.
A.) voltage
B.) circuit
C.) current

Answers

C is the answer Current

1) What two criteria are needed for triangles to be similar?
a)
b)

Answers

Explanation:

do you have a photo to choose a and b please?

The reintroduction of wolves their angered nearby farmers because they feared their animals would be hunted. What level of responsibility do you think the national park should have towards their neighbors? What level of responsibility to the neighbors have to protect their own property? Use reasons and examples to justify your answer.

Answers

The national park has very specific responsibility to maintain and protect the organisms within the park. Though the farmers are their neighbors, wolves are essential to the ecosystem inhabited by the farmers and their livestock. The park may share some responsibility if property is damaged because of the wolves (cows killed, etc) but the population of the wolves is so sensitive that it cannot justify killing them in the name of “protection of personal property”.

Which statement is true for both photosynthesis and cellular respiration?
It occurs in consumers.
It occurs in producers.
It produces carbon dioxide.
It produces oxygen.

Answers

Answer:

b

Explanation:

mha

Answer:

b

Explanation:

What happens to the atoms in a scoop of ice cream as it melts? They decrease in temperature. They lose energy. They vibrate faster. They are held tightly in a fixed position.

Answers

Answer:

they vibrate faster

Explanation:

Answer:

They Vibrate Faster

Explanation:

Did it on Edge 2020

-Its C

Any one can please fill all the labellings.
thanks:)​

Answers

Answer:

1 = True Ribs or Vertebrosternal Ribs

2 = False Ribs or Vertebrochondral Ribs

3 = Floating Ribs

4 = Thoracic Vertebrae 1 (T1)

5 = Ribs

6 = Coastal Cartilage

Explanation:

Thus, The Whole Structure is known as Rib Cage or Thoracic Cage

-TheUnknownScientist

Which of the followings are characteristics of all living organisms?

a. breathing, photosynthesis and transpiration
b. circulation, excretion and nutrition
c. digestion, growth and movement
d. respiration, reproduction and sensitivity

Answers

Answer:

All

Explanation:

A, b, c, d

All are the characteristics of all living organisms.

The characteristic of all living organisms are respiration, reproduction and sensitivity. The correct option is d.

What is life process?

Life's fundamental processes include establishment, metabolism, sensitivity, movement, and reproductive success.

There are additional requirements in humans, the most complex form of life, such as expansion, differentiation, respiration, metabolism, and excretion. All of these processes are linked.

Life processes are the functions of various organs and organ systems that support the life of organisms.

The main life processes performed by every living being to guarantee its preservation on Earth are nutrition, respiration, transportation, excretion, and reproduction.

Thus, the correct option is d as these are the processes required for survival.

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Many bacteria live in the human intestines. Like all other cells, these bacteria must obtain ATP from glucose. Do you think intestinal bacteria use aerobic or anaerobic respiration for this purpose? Explain your asnwer.

Answers

Answer:

Aerobic

Explanation:

Most likely this answer, because the bacteria will now have enough oxygen supply. Since bacteria can use aerobic, there will be no need to use anaerobic respiration.

A lab technician was given 3 samples of urine. one from a healthy person, one from a diabetic and one from a kidney disease patient. The samples were not labelled and she wanted to know which sample come from which patient.

Answers

Answer:

diabetic saw the presure

disease make a basic exam

Explanation:

Which of the following statements is NOT part of the cell theory? *
A).Organisms grow by increasing the size of their cells.
B).All organisms are composed of cells.
C).Cells are the basic units of structure and function for organisms.
D).All cells come from pre-existing cells.

Answers

Answer: it is b


Explain:

Recall what you know about other systems of the body to answer these questions.
A. The blood flows through this system.
B. Sweat glands are a part of this system.
C. The lungs are a part of this system.
D. The large intestine is a part of this system.

Answers

Answer:

Cardiovascular

Exocrine

Respiratory

Digestive

Explanation:

Edg

Answer:

Cardiovascular

Exocrine

Respiratory

Digestive

The second part is put something out of.

Desceibe the structure of the phospholipid bilayer

Answers

Answer:

ok i tried this and i just got it wrong.

Explanation:

Answer:2.What is the structure of the phospholipid bilayer? the answer is VVS ITDAG AUTF GM AFC FFN PPM TN

Explanation:

In terms of gene, chromosome, and DNA were put in order of size. what would be the order from smallest to biggest?

Answers

Answer:

According to the order from smallest to largest, the order will be: Nucleotide, Gene, DNA, Chromatin, Chromatid, Chromosome

How is radar used to forecast weather?

It shows areas of high and low pressure.
It collects data in the upper atmosphere.
It collects weather data as part of a network around the country.
It locates and tracks storms, and follows the path of storm systems.

Answers

Answer:

It locates and tracks storms, and follows the path of storm systems.

Explanation:

How is radar used to forecast weather?

It shows areas of high and low pressure.

It collects data in the upper atmosphere.

It collects weather data as part of a network around the country.

It locates and tracks storms, and follows the path of storm systems.

Answer:

It locates and tracks storms, and follows the path of storm systems.

Explanation:

The Yellowstone wolf and elk are linked through a predator-prey relationship. If a disease were to strike the elk population, how would the wolves be affected? Explain the effect in short term and long term consequences.

Answers

Answer:

The wolves would be effected also. They would be effected by eating the elk.

Explanation:

Short term: They would eat the elk.

Long term: It would cause the wolves to get sick so they could go extienct if the dissease if that bad or they would have to stop eating elk.

Who is mainly responsible for this niche or role: males or females?

Answers

Answer:

Females

Explanation:

trust me its females

how do antibiotics seek out antibacterial cells? ​

Answers

Answer:

many antibiotics includes penicillin, work by attacking the cell wall of bacteria. specifically, the drugs prevent the bacteria from synthesizing a molecule in the cell wall called peptidoglycan.

let me know if this was helpful or not...

plants are _____ organisms.

multicellular or photosynthesis.

Answers

Answer:

multicellular

Explanation:

plants are multicellular organisms that use photosynthesis to make their own food.

1. What are the factors that result in different climates in different parts of the world?​

Answers

A region's elevation, proximity to the ocean or freshwater, and land-use patterns can all impact climate. All climates are the product of many factors, including latitude, elevation, topography, distance from the ocean, and location on a continent.

Hekp me PLease Will Give Brainliest Only if RIGHT

Answers

Answer:

w = 112

L = 64

Explanation:

L/w = 4/7

L = (4/7)w

---

2L + 2w = 352

2(4/7)w + 2w = 352

(8/7)w + (14/7)w = 352

(22/7)w = 352

w = 352*(7/22)

w = 112

L = (4/7)w

L = (4/7)*112

L = 64

Which of the following best describes the use of a renewable resource?

A)Propane is a product you might use to barbeque; it comes from a natural gas and processing oil

B) Coal is mined from deep passages dug in mountainside and burned to generate electricity

C) Oil is pumped from beat his the ocean floor and refined into jet fuel to power airplanes

D) wind turbines gather energy from the wind and convert it into electrical energy

Answers

Answer:

D. wind turbines gather energy from the wind and convert it into electrical energy

Explanation:

All other answers are nonrenewable resources

Describe an organism that might live in a extreme environment like in side a volcano or deep in an ocean or in an Icey cave.what special structures would it have in order to survive the environment

Answers

Answer:

72

Explanation:

what type of skeleton do cnidarians have

Answers

Answer:

Endoskeleton

Explanation:

Answer:

Cnidarians have a hydrostatic skeleton.

2. Decomposers, detrivores, and scavengers feed on dead organic
material. How are decomposers different from scavengers and
detrivores?
A. Decomposers only eat recently dead organisms, while
detrivores and scavengers eat organisms at all stages of
decay.
B. Decomposers only consume plant material, while
detrivores and scavengers prefer meat.
C. Decomposers chemically break down dead material,
while detrivores and scavengers physically alter it by
chewing and tearing.
D. Decomposers are generally from the animal kingdom,
while scavengers and detrivores are generally fungi and
bacteria.

Answers

Answer:

c

Explanation:

Decomposers chemically break down dead material, while detrivores and scavengers physically alter it by chewing and tearing. Therefore, option (C) is correct.

What are decomposers , detrivores and scavengers?

Decomposers are organisms that perform the process of decomposition, which can only be accomplished by certain kingdoms, such as fungi, on dead or decaying organisms.

Detritivores are heterotrophs that eat dead or decaying matter to sustain themselves. Coprophagy is practiced by a wide variety of invertebrates, vertebrates, and plants. All these detritivores are doing their part to aid in decomposition and the cycling of nutrients.

A scavenger is an organism whose primary diet consists of decomposing matter. Carnivores, the group of organisms that primarily consumes meat, include many scavengers.

Therefore, option (C) is correct.

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Please give me an answer and don’t confuse me because everybody is giving me different answers :(

Answers

Answer:

In plants and some protists, such as algae

Explanation:

Chloroplasts are organelles found in cells of plants and some protists, such as algae. They contain a pigment called chlorophyll, which makes them green. Thanks to this protein, they conduct photosynthesis - a process in which energy from sunlight is converted into sugars, i.e. food. In this process, oxygen is being released.

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