Which choice best describes an independent variable in a scientific investigation?

An independent variable is the one variable changed and tested by a scientist in a scientific investigation.

An independent variable is an educated guess that a scientist makes after observing something interesting.

An independent variable is one part of the hypothesis a scientist writes prior to beginning a scientific investigation.

An independent variable is the fastest way to measure the success of a scientific investigation.

Answers

Answer 1

Answer:

A

Explanation:

independent variable is the one variable changed and tested


Related Questions

PLEASE HELP ASAP!!! thx!


Part 1: Which process does arrow A represent?
Part 2: Which type of energy transformation does arrow A represent?
Part 3: Justify why this process is a recycling of carbon in the carbon cycle.

Use complete sentences to explain your answer. (10 points)

(LOOK AT THE PIC BELOW)

Answers

Answer:

Part 1. Process A represents photosynthesis because the solar energy is being transfered to the plant. Part 2. It represents  solar energy being treansferred. Part 3. This process is the recycling of carbon because you can see that photosynthesis, plant and animal respiration, and combustion are all occuring.

Explanation:

Write the energy transformation for what happens when we eat a plant.

Answers

through a process known as photosynthesis. Most of this energy is stored in compounds called carbohydrates. The plants convert a tiny amount of the light they receive into food energy.

The food chain shows the number of organisms at each level of a lake community food chain. 12,000 Water Plants 1,900 Caddisfly larva 300 Bluegill 10 Bass Why are there fewer bass in this food chain?
A They have fewer offspring.
B. They have less energy available to them.
c They are stronger and use up more energy. D. They cannot get food from the soil like plants.​

Answers

Answer:

They are stronger and use up more energy

The scientific name for an organism includes which taxa?
A. class and family
B. domain and kingdom
C. genus and species
D. kingdom and phylum

Answers

Answer:

C

Explanation:

Scientists name animals and plants using the system that describes the genus and species of the organism.

Water enters the _____________ of the leaves?

Answers

Answer answer to this question is chloroplasts

What do plants use to make up their structure?

Answers

Answer:

Molecules of glucose join together to form cellulose. Next, glucose molecules combine to form long chains called cellulose. Cellulose is then used to build plant structures, like cell walls. As more cells divide, the plant's leaves, stems, and roots can grow larger.

molecules help them grow

Someone who has anorexia nervosa may hide weight loss by wearing loose clothing. Please select the best answer from the choices provided
true
false​

Answers

Anorexia nervosa patient may hide weight loss by wearing loose clothing.

What is anorexia nervosa?

It is an eating disorder characterized by an abnormally low body weight, an intense fear of gaining weight and a distorted perception of weight. People with anorexia place a high value on controlling their weight and shape, using extreme efforts that tend to significantly interfere with their lives.

This statement is true that anorexia nervosa may hide weight loss by wearing loose clothing.

Hence, option A is correct.

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pls help trulyhelp for 25 point not lying pls help asap

Answers

Answer:

Im not sure what your exactly asking but for the last question just say something along the lines of how Europe was the highest popualtion dessity and Australia has the lowest. Do you need help with the bar graph?

Explanation:

Answer:  You can say that there is sometimes a pattern in the numbers.  In the graph, The density of Africa minus North America's density equals 2, and the density of North America minus South America's density also equals 2.

Sorry, if this didn't help and also if it is not the right answer.

If a motor unit is stimulated to contract in order to generate movement and no movement happens, which muscular concept indicated the addition of more motor units to increase tension

Answers

When a motor neuron is activated, all of the muscle fibers innervated by the motor neuron are stimulated and contract. The activation of one motor neuron will result in a weak but distributed muscle contraction. ... The higher the recruitment the stronger the muscle contraction will be.

The figure above depicts the DNA-protein complex that is assembled at the transcriptional start site of gene X when the expression of gene X is activated in liver cells. Previous studies have shown th gene X is never expressed in nerve cells. Based on the diagram, which of the following most likely contributes to the specific expression pattern of gene X?
A.Expression of gene X produces large amounts of tRNA but undetectable amounts of mRNA.
B The general transcription factors inhibit the activation of gene X in liver cells by blocking the activator from binding to RNA polymerase II.
С The activator is a sequence-specific DNA-binding protein that is present in some tissues but not in other tissues.
D The enhancer is a unique DNA segment that is added to the nuclear DNA of some cells of an organism during the process of mitotic cell division but not other cells.​

Answers

Answer:

C

Explanation:

The activator is a sequence-specific DNA-binding protein that is present in some tissues but not in other tissues. The correct option is C.

What is gene expression?

Gene expression is the process through which a gene's information is used to create a functioning gene product, allowing it to produce end products like proteins or non-coding RNA and ultimately have an impact on phenotypes.

Because a particular protein can only be made when its gene is turned on, gene expression is significant.

However, there are several steps involved in translating a gene into a protein, and one of these steps—the creation of proteins—is crucial in the gene expression pathway that can be changed in cancer.

According to the diagram, the activator is a DNA-binding protein that only binds to certain sequences in select tissues.

Thus, the correct option is C.

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Your question seems incomplete, the missing image is:

Fill in the blank

A cell is to a board game:______ is to the rule book.

A) DNA

B) a nucleus

C) Endoplasmic reticulum

D) A ribosome

Answers

A: DNA




The DNA send directions and info to the brain

What are the legal responsibilities of a veterinarian regarding the identification and documentation of animals?

Answers

Answer:

The answer is below

Explanation:

The legal responsibilities of a veterinarian regarding the identification and documentation of animals are the following:

1. The veterinarian must safeguard the personal privacy of clients or pet owners, and the pets.

2. The identification of the pet must be kept from the public except required by the law or essential for the protection of other animals and individuals' health.

3. The information about the pet and the pet owners must be confidential

The relationship between the remora and the shark is an example of

Answers

Answer:

Additional Information: Mutualism is the relationship where both organisms get positive results from it. An example of mutualism is the relationship between remora and shark.When one organism lives on another organism, that type of symbiotic relationship is called parasitism.

What are the rarest bacteria?

Answers

Answer:

Candida auris. ...Pseudomonas aeruginosa.Neisseria gonorrhea.Salmonellae. Acinetobacter baumannii.Drug resistant tuberculosis

The question of what the “rarest bacteria” is, is up to debate. However, I would consider the rarest bacteria to be the Tersicoccus Phoenicis. This is due to the fact that it was recently discovered and can with stand radiation. New bacteria is discovered on the daily, but if the question was which bacteria is the rarest to contract, I would say Staphylococcus Aureus as it has rare traits.

Puberty age in females is………………

a. 10-12

b. 12-14

c. 8-10

d. More than 14 years​

Answers

Answer:

b

Explanation:

How is phylogeny related to classification?

Answers

Answer:

Most modern systems of classification are based on evolutionary relationships among organisms – that is, on the organisms' phylogeny. Classification systems based on phylogeny organize species or other groups in ways that reflect our understanding of how they evolved from their common ancestors.

:)

Light colored fur is recessive (bb) to dark colored fur. If 35% of the mouse population is light colored, answer the following:

What percent of the population is BB? (Round to two decimal places)


What percent of the population is Bb? (Round to two decimal places)


What percent of the population is bb? (Round to two decimal places)


What is the frequency of the single dominant allele B? (Round to two decimal places)


What is the frequency of the single recessive allele b? (Round to two decimal places)

Answers

Answer:

What percent of the population is BB? (Round to two decimal places)  → 17% BB   What percent of the population is Bb? (Round to two decimal places)         → 48% Bb   What percent of the population is bb? (Round to two decimal places)    → 35% bb   What is the frequency of the single dominant allele B? (Round to two decimal places) → 0.41   What is the frequency of the single recessive allele b? (Round to two decimal places) → 0.59

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

What is the genotype for a person who is heterozygous for Type B blood?

Answers

Answer:

I'm sooooo confused

Explanation:

I am not sure, I’m sorry :(

How did the frameshift change the amino acids?
Please it’s due today

Answers

A single insertion or deletion of a nucleotide will basically lead to a frameshift mutation where the “reading frame” is disrupted. Normally, amino acids are encoded by three nucleotides, called a codon.

Answer:

Explanation:

Answer: A frameshift mutation will in general cause the reading of the codons after the mutation to code for different Aminoacids.

Explanation: The frameshift mutation will also alter the forst stop codon ("UAA", "UGA" or "UAG") encountered in the sequence.

in recent years much of califorinia has had drought conditions much of our food comes from califorinia and there are many growing cities in that state what do you think has happened to the ground water supply as droughts have occured there explain how a diversion system could be useful califorinia including the parts of such a system

Answers

Answer:

The level of ground water decreases.

Explanation:

Due to drought condition, the level of ground water decreases because of pumping of water for the irrigation purpose. Huge amount of water is required to irrigate a large area of California and in the drought conditions ground water is the only solution for this problem. The diversion system will be useful California by diverging river into these drought affected areas in order to fulfill the need of water for growing crops so we can conclude that this diversion system helps to fulfill the necessity of water during drought situation.

Please help meeeeee???

Answers

Answer:

The one you chose is correct-

That is, assuming that the yellow one is the one you chose.

In the human brain, the occipital lobe, controls vision. Which of the letters on the diagram above indicated the occipital lobe of the human brain?

A) e
B) a
C) d
D) c

Answers

Answer:

A) e

Explanation:

Answer:

option. A

E. represent the optical lobe of the human brain

hope it helps

What is the main difference between the intertidal zone and the neritic zone?

the amount of exposure to sunlight
the amount of salt in the water
the amount of time covered by water
the presence of plants and animals

Answers

Answer:

intertidal zone is the area of shore between the high tide and low tide lines whereas neritic zone is the area of the ocean from the low tide line out to the continental shelf.

The main difference between the intertidal zone and the neritic zone is the amount of time covered by water.

What is intertidal zone and the neritic zone?

The intertidal zone is the area of the shoreline that is regularly exposed to air at low tide and submerged at high tide. This area is characterized by its exposure to fluctuations in water level, temperature, and salinity, and is home to a diverse range of organisms that have adapted to these conditions.

The neritic zone, on the other hand, is the shallow ocean water over the continental shelf, extending from the low tide mark to a depth of about 200 meters. Unlike the intertidal zone, the neritic zone is always covered by water and is characterized by relatively stable physical conditions, including a relatively constant temperature and salinity.

While the amount of exposure to sunlight can vary in both the intertidal and neritic zones, the main difference between these two habitats is the amount of time covered by water and the resulting stability of environmental conditions.

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These are the three main organs that make up the plant body.

What is the main function of the structure that is identified as A in the picture above?

It anchors the plant
It produces food
It absorbs nutrients
It supports the plant

Answers

It produces food. The plant absorbs sunlight and turns it into food for itself. :)

Answer:

B. Produces food.

Explanation:

hope this helped ^^

Will using Whole Milk instead of using low
fat milk make a difference in making cheese? if so,
how?

Answers

Answer:

Yes there will be a slight difference in texture but ultimately it is a acceptable substitution. Just make sure to look at the recipe. It depends on how much fat and moisture that milk is contributing to the overall batter or food

Use the image below to explain protein synthesis and the steps of transcription and translation. Hint: Use the numbers 3-11 to guide your explanation.

Answers

Answer:

Protein synthesis is the process in which cells make proteins.It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. After a polypeptide chain is synthesized, it may undergo additional processing to form the finished protein.

Explanation:

I hope this helps.

In a deciduous forest of Maine, there are 300 Falcons living in a certain region at the beginning of the year. Scientists have determined that these Falcons demonstrate exponential growth and that their per capita growth rate is 0.067. What will the population of Falcons be in 5 years?

Answers

Answer:

419 Falcons

Explanation:

P= Poe^rt

P= population at time t = ?

Po = initial population = 300

r= growth rate = 0.067

t = time taken = 5 years

P = 300e^(0.067 * 5)

P = 419 Falcons

because the moon has little gravity it can't _____​

Answers

Answer:

no puede ser habitado por los seres humanos

Explanation:

por la gravedad

3. Which of the following metals is a toxic byproduct of coal combustion?
mercury
uranium
cadmium
silver

Answers

Answer:

Mercury

Explanation:

please i need help its for a assignment for school just give me a reaason a car is living like it runs of of nutrionse/ gas

Answers

Answer: they move and need a source of energy (fuel) to function

hopefully this is what you were asking for but this is not what you meant, i apologize
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