atomic theory is
A subject to change when new information is discovered
B a solution to the problem with different isotopes
C unchangeable
D a descriptive table that lists all of the elements

Answers

Answer 1

Answer:

B or C hope this helps <3

Explanation:


Related Questions

Describe the differences in strength between ionic bonds, covalent bonds, hydrogen bonds, and Van der Waals interactions.
 

Answers

Answer:

A hydrogen bond (or H-bond) results when a hydrogen atom that is covalently bound to an electronegative atom (e.g. O, N, S) is shared with another electronegative atom. ... They are stronger than the van der Waals interactions, but weaker than covalent or ionic bonds.

Explanation:

PLEASE HELP I KNOW IT'S LONG BUT I DON'T UNDERSTAND

Answers

is it a word bank or something

Which of the following definitions correctly describes the naturally occurring carbon cycle?

The carbon cycle is a series of natural processes through which atmospheric nitrogen is converted by carbon into compounds used by plants and animals.

The carbon cycles is a series of naturally occurring processes where carbon and oxygen are exchanged between organisms and the environment.

The carbon cycle is a series of naturally occurring processes where carbon is exchanged between organisms and the environment.

The carbon cycle is a series of water transformations of water where it changes into water vapor and then converts to liquid water.

Answers

Answer:

The carbon cycle is a series of natural processes through which atmospheric nitrogen is converted by carbon into compounds used by plants and animals.

Explanation: Because animals that eat plants digest the sugar molecules to get energy for their bodies. Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle.

The human body is composed of cells, organs, organ systems, and tissues. How are these organized?​

Answers

Answer:

cells, tissues, organs, organ systems

Explanation:

This is how these are organized - in terms of smallest to largest.

Figure 1 represents a segment of DNA. radiation can damage the nucleotides in a DNA molecule. to repair some types of damage, a single nucleotide can be removed from the DNA molecule and replaced with an undamaged nucleotide. which of the four labeled bonds in figure 1 could be broken to remove and replace the cytosine nucleotide without affecting the biological information coded to the DNA molecule?

Answers

Answer:

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

A) Bond X only

B) Bond W only

C) Bonds Y and Z at the same time

D) Bonds W and Z at the same time

The answer is C. Bond Y and Z at the same time

Explanation:

A DNA molecule is a double-stranded molecule made up of nucleotide units. According to this question, radiation can damage the nucleotides in the DNA molecule. However, the cell can repair this DNA molecule by removing the single damaged nucleotide and replacing it with an undamaged one.

In this case, the cytosine nucleotide is the damaged nucleotide. To repair this DNA in the image, the covalent bond holding the one nucleotide to another in one of the DNA strands must be broken.

The sugar-phosphate bonds as represented by letters Y and Z are the bonds that could be broken to replace the cytosine nucleotide by an undamaged one, without affecting the biological information coded to the DNA molecule. The bonds holding the neighboring nucleotides are also broken during the repair process. Note that, this form of repair is called BASE EXCISION REPAIR

The bond in figure 1 could be broken to remove and replace the cytosine nucleotide without affecting the biological information coded to the DNA molecule is C. Both Bond Y and Z at the same time.

It should be noted that a DNA molecule is simply referred to as a double-stranded molecule that's made up of nucleotide units. Radiation can damage the nucleotides that are in the DNA molecule.

Through the removal of the single damaged nucleotide and then replacing it with an undamaged one, the DNA molecule can be repaired. Based on the diagram, the cytosine nucleotide is the damaged nucleotide, therefore, in order to repair it, the covalent bond that's holding the nucleotides together must be broken.

Read related link on:

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1. Which of the following is NOT an example
of an outpatient care service?
• Physical therapy
. Lab tests
• Urgent care center
• ICU care

Answers

ICU care (intensive care unit) that means you are currently in it. you don’t walk into it.. you are there for a reason. physical therapy you can walk to, labs are outpatient which are walk in and so are urgent care centers

ICU care (intensive care unit) is not an example of an outpatient care service that means you are currently in it. Thus, option D is correct.

What is the Hospital facility?

A hospital facility could be defined as a place where sick or injured people are given the extreme care or treatment with respect to their disease or injuries. It includes a hospital, clinic, urgent care centers like ICUs, etc. While a hospital is included in the hospital facility only not in the specialty hospital facility. So, the burn center often known as the burn unit delivers extreme and intensive care to the patients who burn by fire.

Home health care organizations and outpatient care facilities are provided to the patient outside the hospital or it means in the residence of the patient itself. A Burn center is an example of a specialty hospital facility. physical therapy you can walk to, labs are outpatient which are walk in and so are urgent care centers.

Therefore, ICU care (intensive care unit) is not an example of an outpatient care service that means you are currently in it. Thus, option D is correct.

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What are the small particles recently found in protons and neutrons?​

Answers

Answer:

The answer to this is Protons are made from two up quarks and a down quark, while neutrons are composed of two downs and an up. The up and down quarks are the lightest varieties

your welcome :)

chloroplast produces what as a waste product

Answers

Answer: Oxygen

This is because after chloroplast produces the plants release oxygen (from production by chloroplast) to get rid of it. Making it essentially waste product

The building in the pic was most clearly related to which of these features of Sumerian civilization

Answers

C. Religion (The ancient Sumerians, believed their gods lived in the sky)

What would happen to the fruit fly population in the locker if the apple were removed from that ecosystem?

Answers

The fruit flys population would be less since the apples isn’t there anymore. The reasoning behind that is because it’s a fruit fly they like being around fruit.

Fruit flies are the insects that belong to the order, Diptera and are attracted to ripe and decaying fruit sources. If apple is removed from the ecosystem then the population of flies decreases.

What is an ecosystem?

An ecosystem is said to be a biological community that is defined by the presence of both abiotic and biotic factors. It involves the interaction between living and non-living things that are linked through the food chain or the biogeochemical cycle.

The population of the fruit flies in the ecosystem depends on and interacts with the fruits that are ripe and decaying. They feed on those fruits. If the fruit like apples is removed then it will affect the fly population decreases as they were dependent on them for survival.

Therefore, the population of fruit flies decreases.

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definition for excretory system

Answers

Answer:

The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent damage to the body.

Explanation:

The term “jet stream” is often used by weather forecasters to describe

Answers

Answer:

Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. The winds blow from west to east in jet streams but the flow often shifts to the north and south. Jet streams follow the boundaries between hot and cold air. ... The earth's rotation is responsible for the jet stream as well.

Explanation:

Answer: The term jetstream is often used by weather forecasters to describe the west to E. Windsor Circle the globe Austin just below the polls and latitude and just beneath the stratosphere in elevation

Explanation:

describe the interior structure of a mitochondrion. HELP ME PLEASE !!!!!

Answers

Answer:

mitochondria are shaped perfectly to maximize their productivity. They are made of two membranes. The outer membrane covers the organelle and it contains it like a skin. The Inner membrane folds over many times and creates layered structure called cristae.

Advanced practice nurses earn less money than licensed practical nurses. Select one: a. True b. False

Answers

Answer: false

Explanation:

cuz

Which macromolecule is better for you if you needed energy and were trapped on an island for 10 days without a large amount of food? Why?

Answers

Answer:

Biology 1 End-of-Course Assessment Practice Test

For Multiple Choice Items, circle the correct response.

(1.02 MC) SC.912.N.1.1

If a company claims that its product has been proven scientifically, which of the following should  

have taken place if the results are to be considered reliable?

A. The company should have held discussions with leading industry scientists.  

B. Technology should have been used in both the gathering of data and data analysis.

*C. Results should have been peer reviewed and repeated producing the same findings.

D. The results of the investigation should have been published in popular magazines.  

(1.02 MC) SC.912.N.1.1

Based on your knowledge of scientific investigations, which stage of scientific investigation did  

the invention of the microscope significantly advance?

A. Communicating the results of experimentation

*B. Gathering the data for the investigation

C. Generating explanations of phenomena

D. Planning the investigation and experimentation

(1.02 HC) SC.912.N.1.1

A student is conducting an investigation to determine the effect of temperature on the  

metabolism of yeast (Saccharomyces cerevisiae). Yeast and sugar are added to water, the gas  

produced is captured, and its volume is recorded. Which variables should be held constant  

during this investigation?

A. Mass of sugar and water temperature

*B. Mass of yeast and mass of sugar

C. Volume of gas and water temperature

D. Volume of gas and mass of yeast

(1.02 MC) SC.912. L.14.1

Scientific law and a scientific theory are similar in that both

A. are based on what we expect to happen based on natural history

B. describe the events that can be observed in nature

C. explain why events and conditions occur as they do in the natural world

*D. represent a large amount of scientific investigation and evidence

Read the scenario and examine the table.
Ivan wants to test how the amount of water consumed each day affects the number of facial blemishes people receive over a month. He gathers 12 people and divides them into 3 groups. He keeps everything the same for each group except for daily water and food intake. Throughout the month, Ivan tallies the number of facial blemishes each individual receives. The table details how Ivan changed the independent variables for each group.
Note: Group 1 is Ivan's control group.

What error did Ivan make in the design of his investigation?

A.) Ivan did not record the results for the dependent variable in a data table.
B.) Ivan did not determine the average number of blemishes received.
C.) Ivan tested more than one independent variable at a time.
D.) Ivan had the individuals in the control group consume water.

Answers

The answer is C.) Ivan tested more than one independent variable at a time.

Helppppppppppppppppp

Answers

bruh you literally just gotta look up the word and give an example

Which job description would refer to the work a Golgi body does?

Answers

The Golgi apparatus is an organelle present in most eukaryotic cells. It is made up of membrane-bound sacs, and is also called a Golgi body, Golgi complex, or dictyosome. The job of the Golgi apparatus is to process and bundle macromolecules like proteins and lipids as they are synthesized within the cell.

A claim is scientific and accurate if it is based on someone’s opinion. based on data from a controlled experiment and confirmed by multiple trials. based on a presentation by a professional or an amateur in the field. based on a story that makes sense.

Answers

Answer:  Based on data from a controlled experiment and confirmed by multiple trials.

What is the cause and effect of invasive species ?

Answers

Answer:

THIS IS THE FULL ANSWERE YOU CAN MAKE YOUR OUN SHORT CUT

Explanation:

Invasive species are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats. This can result in huge economic impacts and fundamental disruptions of coastal and Great Lakes ecosystems.

HOPE IT HELPED GOOD LUCK

What type of attraction occurs when water molecules attract other types of molecules (other than water)?
Choose 1 answer:
Adhesion

(Choice B)
B
Surface tension

(Choice C)
C
Hydrophobic

(Choice D)
D
Cohesion

Answers

Answer:

Choice A, Adhesion

Explanation:

If you have trouble telling the difference between cohesion and adhesion, remember that an adhesive is glue, water is essentially "gluing" itself to another surface.

Humans have an open circulatory system.
O True
O False

Answers

Answer:

False

Explanation:

Humans have a closed circulatory system, while many mollusks and other invertebrates have an open system. In a closed circulatory system, blood is enclosed within blood vessels.

Scientific hypothesis must be proposed in a way that

Answers

Answer:

can be tested and proven

Which of the following statements
cite evidence that supports or led to
the discovery of the cell theory.
Choose ALL that apply.
One celled organisms reproduce by binary
Show all

Answers

Hi, you've asked an Incomplete question. However, I provided a brief about cell theory.

Explanation:

The cell theory basically states that all living things are made of cells and that the cell is the basic unit of life. Robert Hooke, who was a Scientist is known to have originated (coined) the term “cell” in the year 1665.

Basic Facts about Cell theory:

the basic unit of life is the cellall living things have one or more cells.already existing cells produce all new cells.

HELP ME PLZZZZZZ!!!!!!!!!!!

Title: Cell Transport Hands-On Lab Report

Objective(s):

Hypothesis:

Variables:

Materials:

Raw egg
String or thread or yarn
Ruler
White vinegar
Tap water
Syrup
Jar with lid (like a mayonnaise jar or something big enough to put the egg in)
Procedures:

Data and Observations:
Record your observations from the experiment in either the hands-on lab or the teacher-led video. Don't forget to include at least two detailed observations and the measurement of the egg's circumference in centimeters.

Time (hrs) Observations Circumference (cm)
0




24




48




72




Conclusion:

Be sure to address each bullet in the conclusion of your lab report. The conclusion should be written in paragraph format:

Was your hypothesis correct? Why or why not?
How much did the egg change in size? (answer should be in centimeters)
Evaluate the lab and data collected. Describe the accuracy and precision of your data collection.
Describe the limitations (e.g., cost or time of measurement) that may have caused inaccuracies. How would you refine your procedures to increase the precision and accuracy of your data?
What type of transport occurred in this lab? Explain your answer, including evidence from your experiment to support your explanation.

Refining the Experiment:
Continue this experiment by removing the egg from the water and covering it in syrup. Be sure to allow at least 24 hours before making your observations. Handle the egg very carefully!
Predict what will happen to the egg and syrup system.
When refining your procedures describe the following:
How will the change in the syrup and within the egg be measured or identified?
How will you determine when homeostasis has been reached in your egg and syrup system?
Be sure to address each bullet in the conclusion of your lab report:
Was your hypothesis correct? Why or why not?
How much did the egg change in size? (answer should be in centimeters)

Answers

Answer:

Explanation:

Objective(s): To see what will happen to the egg after soaking in water for 72 hours checking it every 24 hours

Hypothesis: I think the egg will get very thick because it will absorb the water

Variables:Independant: The circumference is measured every 24 hours

                Dependant: the circumference

                 Control: The same unit of measurement was used ( CM)

Materials:

Raw egg

String or thread or yarn

Ruler

White vinegar

Tap water

Syrup

Jar with lid (like a mayonnaise jar or something big enough to put the egg in)

Procedures:

Data and Observations:

Record your observations from the experiment in either the hands-on lab or the teacher-led video. Don't forget to include at least two detailed observations and the measurement of the egg's circumference in centimeters.

Time (hrs) Observations Circumference (cm)

0                the egg looks normal: 53 CM

24             Its starting to get bigger: 54 CM

48              It wont start getting bigger: 56 cm

72                Its huge: 57 CM

Conclusion:My hypothesis was correct. I knew the egg would get bigger because the water would absorb into the egg.  The egg grew 4 cm

Was your hypothesis correct? Why or why not?My hypothesis was correct. I knew the egg would get bigger because the water would absorb into the egg.

How much did the egg change in size? (answer should be in centimeters)The egg grew 4 CM

Refining the Experiment:

Continue this experiment by removing the egg from the water and covering it in syrup. Be sure to allow at least 24 hours before making your observations. Handle the egg very carefully!

Predict what will happen to the egg and syrup system.

When refining your procedures describe the following:

How will the change in the syrup and within the egg be measured or identified?

How will you determine when homeostasis has been reached in your egg and syrup system?

Be sure to address each bullet in the conclusion of your lab report:

Was your hypothesis correct? Why or why not?

How much did the egg change in size? (answer should be in centimeters)

SORRY I DIDN'T HAVE TO DO THIS PART ON MINE.

1. The body’s cells require oxygen for cellular respiration. They must also rid themselves of carbon dioxide, a waste product. How does this explain the change in breathing rate? 2. The cardiovascular system moves blood around the body. Blood carries oxygen to cells and removes carbon dioxide from them. How does this explain the change in heart rate? 3. What are some of the ways your body regulates body temperature during strenuous activity? 4. How did your body respond after you stopped exercising? a. What does this response tell you about your body’s ability to maintain homeostasis? Use data from each of the 5 parameters to support your answer. 5. Research the physiology of common cold and fever. Predict the effect of common cold and fever on the five parameters.

Answers

Explanation:

1. Usually a change in breathing rate occurs when the body is undergoing an increase in body activity such as when one running or exercising. At such a point of running, for example, the body increases the levels of oxygen for the increased cellular respiration.

2. Using the same example of someone who is running, at such point, medical professionals believe that the heart which is part of the cardiovascular system begins to increase the frequency at which blood is circulated around the body. Thus, resulting in a change in heart rate (or change in the number of pumps per sec).

3.  The following are a few ways:

increase in sweat glands functions which brings out water from tiny holes in our skin to cool us off.increase in heart rate; pumping more blood into the body which helps in regulating body the temperature.

4. After you stopped exercising usually this occurs:

the pumping rate of the heart reducesincrease in muscle and body strength

This almost instant response tells us that our body has an automated ability to maintain internal body temperature (homeostasis).

explain how molecules and compounds are different and use examples

Answers

A molecule is a group of two or more atoms held together by chemical bonds. A compound is a substance which is formed by two or more different types of elements which are united chemically in a fixed proportion. All molecules are not compounds. All compounds are molecules.

Answer:

molecule is basic unit of compound.Compound is made up of various element.

Explanation:

Water is a compound made up of molecule of hydrogen and oxygen.

Psychology (50 Points)

Answer them all please and Thank you.

Answers

I'm not too familiar with this, so if i'm wrong i sincerely apologize.

[tex]Number\; 1\; seems\; to\; be \;Graduation.[/tex]

[tex]Number\; 2\; seems\; to\; be\; all\; of\; the\; above.[/tex]

[tex]Number\; 3 \;seems \;to\; be\; Puberty.[/tex]

Can a single cell also be an organism?why?

Answers

Answer:

A unicellular organism depends upon just one cell for all of its functions while a multicellular organism has cells specialized to perform different functions that collectively support the organism.

Hope this helps

How do fossil fuel give energy to cars

Answers

The heat that is used to burn fossil fuels cause molecules of carbon and hydrogen to react and produce large amount of energy. ... When they are exposed to heat, the hydrocarbon chain converts the heat energy contained in the fossil fuel to electrical energy to create electricity or mechanical energy to drive the engines.
The heat that is used to burn fossil fuels cause molecules of carbon and hydrogen to react and produce large amount of energy. ... When they are exposed to heat, the hydrocarbon chain converts the heat energy contained in the fossil fuel to electrical energy to create electricity or mechanical energy to drive the engines.
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