1. Define physical change.
2. What are some examples of physical change?
3. The wood in the Figure below is being cut with a chainsaw. Is this a physical change?
Why or why not?

Answers

Answer 1
1. A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. The size or shape of matter may be changed, but no chemical reaction occurs.
2. Crushing a can.
Melting an ice cube.
Boiling water.
Mixing sand and water.
3.it is a physical change because in a physical change is usually easy to see.

Related Questions

When comparing the brightness of stars, it is
necessary to know the distance to each star.
vole
True
False

Answers

I believe it is true

The adenine of the start codon is located at the +1 position. Use the DNA Mutations Interactive to determine which statements describe missense mutations. a substitution of G to U at position +13 in the sense strand a transition at position +12 in the antisense strand a transversion of C in the sense strand of the histidine codon a G nucleotide is inserted after position +1 in the antisense strand a deletion of the A at position +7 in the antisense strand an insertion of A between positions +7 and +8 on the sense s

Answers

Answer:

A transition at position +12 in the antisense strand

A deletion of the A at position +7 in the antisense strand

Explanation:

Given that Adenine of the start codon is located at the +1 position, The correct  statements that  describe missense mutations are

 A transition at position +12 in the antisense strandA deletion of the A at position +7 in the antisense strand

Adenine is a purine nucleobase that is used in the formation of nucleic acids

Is a forest area that has been washed away by a flood a primary or secondary area of succession?

Answers

Answer:

I'm pretty sure it's secondary

Explanation:

Secondary succession is a major disturbance such as a fire or a flood

(I need help will make brainlyest) Which shows the correct order for the classification of species------------------

A) Domain, Kingdom, class, Order, Phylum, Family, Genus, and species-------------------------

B) Domain, Kingdom, Phylum, class, order, Family, Genus, and species--------------------------

C) Domain, Kingdom, Phylum, Class, Order, Family, Species, and Genus------------------------

D) Domain, Kingdom, Phylum, class, order, family, genus, species----------------------------------

Answers

i believe the answer is B thank you troy and abed

A substance whose shape can easily change is a
a.
solid.
b.
powder.
c.
fluid.
d.
metal.


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

fluid.

Explanation:

because there molecules can freely move and take the shape of any container

CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION

Answers

Answer:

D

Explanation:

Happy Days to you!

Answer D.) extremely high

You want to determine if the source of fecal contamination is from dairy cows or wild deer. Which antibiotic would give you the most clear results and why

Answers

Answer:

Piperacillin and tazobactam, imipenem and cilastatin, or meropenem may be used.

Explanation:

Antibiotics such as piperacillin and tazobactam, imipenem and cilastatin, or meropenem can be used for the treatment of Fecal coliform bacteria that causes fecal contamination. There are some other methods also used to avoid Fecal contamination i.e. boiling of water, treating water with chlorine, or UV disinfection are the methods that are used to reduce Fecal coliform bacterial infection.

How does the atmosphere help to make Earth livable? Check all that apply.

causes the seasons
contains oxygen
provides warmth
creates important nutrients
blocks harmful energy from the Sun

Answers

Answer:

- contains oxygen

- provides warmth

- blocks harmful energy from the Sun

Explanation:

this is the answer hope this helps (^_^)

Answer:

the one above me is right

Explanation:

Which of the following is not correct about diffraction?

Answers

Answer:

Diffraction occurs just with electromagnetic waves.

Explanation:

The information that should not be true about diffraction is that it arise with the electromagnetic waves only.

What is diffraction?

It is considered as the process where the beam of light or the other system waves should be spread out that leads of passing via the narrow aperture or it should be an across of an edge that should be accompanied by interfering between the formation of the waves that should be generated.

So the above information should be considered.

learn more about diffraction here: https://brainly.com/question/15085704

3. When the mRNA is translated, the order of its codons determines the order of amino acids in the resulting polypeptide O a. True O b. False​

Answers

Answer:

True

Explanation:

Suppose an explorer discovered a unique new species of plant and collected a sample for analysis by a geneticist. The geneticist then isolated chromatin from the plant sample and examined the chromatin using electron microscopy. The chromatin observed was organized in a way that is similar to beads on a string A small amount of nuclease was then added, which was observed to cleave the string into individual beads that each contained 280 bp of DNA.
Histone H1 H2A H2B H3 H4 H7 (new histone)
Percentage 12.5% 25% 25% 0% 26%
After thorough digestion with more nuclease, only a 120 bp fragment of DNA remained attached to a core of histone eins. Analysis of the histone core revealed the data dicated in the table to the right.
Using the data provided, determine the conclusions that the geneticist could make about the likely structure of the nucleosome in the chromatin of this new plant species
A. The nucleosome core contains a heterodimer of the histones H7 and H1
B. The nucleosome core contains two each of histones H2A, H2B, and H4
C. The nucleosome core contains a homodimer of the histones H2A, H2B, and H4
D. The nucleosome core contains one each of histones H1 and H7
E. The nucleosome core histone H7 replaces the standard histone H3

Answers

my brain can't process this lol

Which of the following statements is true?
Earth's atmosphere helps it maintain a constant temperature.
Condensation is the process by which water changes from a liquid into a gas.
Plants do not perform respiration.
Animals add water to the atmosphere through photosynthesis.

Answers

Earth's atmosphere helps maintain a constant temperature.

Answer:

hello there your answer is A:Earth's atmosphere helps it maintain a constant temperature.

Explanation:

please mark other guy as brainllest.

have a nice day

[o]-[o]

\___/

Cellular respiration and photosynthesis are similar in that both require
O A. glucose
B. membrane proteins
C. oxygen
O D. carbon dioxide
UBMIT
12

Answers

Answer:

If you can choose 2 your answers would be A.Glucose and C.Oxygen but if not try Oxygen.

How does stimulus become a memory? stay safe god bless.

Answers

Memories will occur when specific groups of neurons have been reactivated. The stimulus results in any brain in a particular pattern of neuronal activity. Some neurons start to become active in either more or less a particular sequence. Retrieval Cue; a stimulus for remembering information.

How much has the greenhouse gas carbon dioxide increased in the air just in the last few years? ITS DUE IN A FEW HOURS PLEASE HELP!

Answers

Answer:

approximately 2.3 parts per million (ppm) per year

Explanation:

In 2019, the global amount of atmospheric carbon dioxide (CO2) has been estimated at approximately 410 parts per million (ppm). These levels are higher than at any time in the last 800,000 years, and it has been estimated that in 2025 the CO2 levels will be higher than at any time in the last 3.3 million years. In 2018, there has been an increase of approx. 2.5 ppm, the same increase observed between 2017 and 2018. Moreover, the average increase of the CO2 levels in the atmosphere between 2009 and 2018 was 2.3 ppm each year.

The moon's relative motion causes
A)
ocean tides.
B)
wind currents.
the phases of the Moon.
D)
the rotation of the Moon.

Answers

Answer: the phases of the moon

Explanation: i did it

Which type of stem supports giant trees?
A. herbaceous
B. gummy
C. woody
D. leafy

Answers

i’m pretty sure the answer to this is woody. hope this helps!

The type of stem that supports giant trees is woody, which is option C. Woody stems are the type of stems that support giant trees, so the correct option is option c.

Woody stems are characterized by their hardness and rigidity, which are due to the presence of wood tissue. This wood tissue provides structural support and allows the stem to grow thicker and stronger over time. Giant trees, such as oak, maple, pine, and redwood trees, have woody stems that enable them to reach great heights and support their extensive branching systems. Herbaceous stems, on the other hand, are softer and more flexible. So the correct option is option C.

Learn more about the woody stem here.

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dsadasd das sad afsasdasdsa?

Answers

I am sorry what?????

what language is this?

Search using the internet on how you can expand or enhance one's knowledge of animal/fish raising.​

Answers

Answer:

Fish farming involves raising a variety of aquatic animals, such as fish, mollusks and shrimps in an enclosure such as a tank or pond. With the surge in demand for healthy animal protein the  demand for fish and fish products is on the rise. Fish farms have the potential to produce fish for home consumption at about $0.90/lb which is a considerable saving when compared to supermarket prices of over $2.00/lb.

The first step for fish farming is to determine what you are going to do with your full-grown fish. You need to know the purpose, whether you are going to keep fish as a pet or for fish meat. This will decide a lot of things like the space requirements, equipment and capital requirements. If you intend to keep fish as a pet for showcase then a small tank or a backyard small fish farm is sufficient. If you intend to put a small fish farm with one or two ponds then also with a little business mindset you can market 1000 to 2000 lb of fish.  

This will also require you to set up a business entity and have a business mindset.The costs associated with raising different types of fish varies because different fish need certain temperature water to live. The type of fish also decides the requirement of equipment and the feed cost. There are lots of laws about raising fish and animals, and even more, stringent laws related to raising animals that are going to be consumed as food.

Before starting fish farms or fish hatchery of any size or type it is advisable to check local laws and the need of permits  to do so in your area.Normally you will get a license to operate your fish farm for a year which will be renewable. You need to submit the following documents to apply for the license:

Filled in application form

Sketch or aerial map of the facility layout, including dimensions

Copy of fish health certificate

Copy of stocking permit

Letter of a written permission from the landowner (in case if you are not the landowner)

Explanation

(I truly apologize if this answer is too long)

Which type of plant lives the longest?
a.annual
b.biennial
c.perennial
d.none of the above

Answers

Answer:

c. perennial

Explanation:

A silver maple oak tree is an example of a perennial as it can live hundreds of years

Question 3 If you had more time or better resources, how could you improve your model to eliminate some of these weaknesses?​

Answers

Explanation:

I tried to answer but I dont know what you mean im sorry

in selective breeding, the desirable traits are chosen.

a. true
b. false

Answers

True because they are selecting and breeding for traits that will be best for survival

An ecosystem engineer can cause a cascade of effects including abiotic and biotic changes.
O True
False

Answers

Answer:

O True

Explanation:

Ecosystem engineers are able to modify the surrounding environment, either by creating new habitats or modifying/destroying existing ones to adjust them to their needs. These species can significantly alter their environments, having a large impact on the species richness as well as modifying the availability of abiotic factors (e.g., water, space, etc) of a particular area. In certain environments, ecosystem engineers can even act as keystone species. Some examples of ecosystem engineers include, among others, beavers, woodpeckers, corals, etc.

Ashton is a crime scene investigator. He ensures that all the evidence gathered at the scene is properly handled and labeled. What is Ashton protecting?
Ashton ensures that the (blank) the documentation of who possesses evidence at all times, is protected by properly handling and labeling evidence.

Answers

when it says (blank) it means evidence evidence.

I will do Brainliest If this is quick and right. (I will figure out brainliest ive never done it before)

Answers

epithelial stomach cell>stomach lining tissue>stomach>disgestive system

(By CMI W Sunce Source
1. What organism is pictured?
2. Name and describe the process is shown on the right.
3. What is the name of the circular bodies? What happens there?

Answers

Answer:

Explanation:

You are tasked with characterizing responses to Epidermal Growth Factor (EGF) treatment of HeLa Cells. You grow HeLa cells then replace the culture media with media containing EGF at various concentrations, then harvest samples for Western blot analysis using an anti-phospho-MAPK antibody as a readout of receptor tyrosine kinase activity. As expected, your control (EGF treated cells) show a strong phopho-MAPK signal on your Western blot. What do you hypothesize will happen if you pre-treat HeLa cells with siRNAs (RNAi) against Ras prior to adding EGF and performing Western blot analysis with anti-phospho-MAPK

Answers

Answer:

The answer is "The EGF receptor will be activated but the signal will not be appropriate transduced"

Explanation:

It induces the replication of cell types, especially fibroblasts or epithelial cells. It enhances neuron variety's telling the difference, ripening, and survival. The proinflammatory cytokines of the EGF family are described by four disulfide bonds that confer adhesive properties. The EGF sensor is switched on and the signal is not transmitted correctly.

Michael discovers that a fish breathes less often in cool water. He correctly hypothesizes that A. the fish slows down in cool water, and does not need as much oxygen. B. the fish is eating, and does not have time to breathe as much. C. the fish is sleeping, and does not need as much oxygen. D. there is less oxygen in cool water, so the fish breathes slowly.

Answers

Answer: then it’s d there is less oxygen in cool water

Explanation:

There are many explanations for Michael's observation that fish breathe less frequently in cold water. However, his hypothesis that the fish returns to the cold water and requires less oxygen seems possible.

What type of animals fish are?

Fish are cold-blooded animals, which means their environment controls their body temperature. Their metabolic rate, activity level, and oxygen requirements decrease as water temperatures drop.

As a result, fish can slow down in cold water, reducing their oxygen demand and reducing their breathing rate.  Oxygen solubility may also play a role in whether fish breathe less in cold water. As the water temperature decreases, the ability of oxygen to dissolve in the water also decreases. Because of this, cold water can have less oxygen available, which can cause fish to breathe more slowly to compensate for the lack of oxygen.

Because fish need oxygen to digest food, they are likely to eat and breathe less. It's basically a joke that the fish are resting because fish don't have an obvious resting cycle and will move and swim when they are resting.

Finally, Michael's hypothesis that fish breathe less in cold water is plausible as it suggests that fish slow down and don't need as much oxygen.

Learn more about fish at:

https://brainly.com/question/29115848

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A prospective groom, who is healthy, has a sister with cystic fibrosis (CF), an autosomal recessive disease. Their parents are normal. The brother plans to marry a woman who has no history of CF in her family. What is the probability that they will produce a CF child? They are both Caucasian, and the overall frequency of CF in the Caucasian population is 1/2500—that is, 1 affected child per 2500. (Assume the population meets the Hardy-Weinberg assumptions.)

Answers

Answer:

Explanation:

From the given information:

Since the parent are normal; Let assume that their trait is Pp

The affected sister  will be recessive in nature, so the trait will be pp

Now, the husband who is the groom will be a carrier with a probability of 2/3 since her sister is affected.

Also, the wife will be carrying a heterozygous trait since she is normal as well.

However, using Hardy-Weinberg assumption:

[tex]q^2 = \dfrac{1}{2500}= 0.0004[/tex]

[tex]q = \sqrt{0.0004}[/tex]

q = 0.02

Recall that:

[tex]p+q =1 \\ p = 1 - q \\p = 1 - 0.02 \\p = 0.98\\[/tex]

Thus, [tex]p^2 = (0.98)^2[/tex]

[tex]p^2 = 0.9604[/tex]

[tex]2pq = 2 \times 0.98 \times 0.022[/tex]

2pq = 0.0392

Finally, the required probability that there will be an affected offspring amongst the family is:

[tex]= \dfrac{1}{4} \times \dfrac{2}{3} \times 0.0392[/tex]

[tex]= \dfrac{1}{153}[/tex]

Will give brainliest

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After an initial infection of the measles virus, B-cells recognize the measles virus in your body. How is this helpful in human immune response? (SC.912. L.14.52)
ws
O The B-Cells transfer this recognition to T-cells, which will then devour the viruses
o The B-cells use this recognition to defend the body against the B-cells more quickly recognize and respond to any other virus that invades the body
O The B-Cells more quickly recognize the response to any other virus that invades the body
O The B-cells produce antibodies more quickly if the measles virus is encountered again

Answers

Answer: it’s D

Explanation:

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what is the answer. Evalute (2/3)2. Thank you Paige only needs to sell to 17 more customers to receive a bonus. She works part time, so she only talks to 50 customers per day. With a sales ratio of 1:9, on which day will Paige qualify for a bonus? 4Select the correct answer.Solve the following equation for x.x2 - 9x+ 18 = 0O A.X = -3; x = 6.X= 3; x = 6OC.x= -3; x = -6OD.x= 3; x = -6(ResetNext if you add an exclamation I will give you a Brain list A male animal can weigh up to 6,000 pounds.How many tons is 6,000 pounds?6,000 pounds is equivalent to what tons. a study of revolutions would most likely lead to the conclusion that pre-revolutionary governments A) armored concerned about human rights than the government that replaced them B) refused to modernize their arms forces with advanced technology C) attempt to bring about the separation of government from religion D) failed to meet the political and economic needs of their people How did Franklin D. Roosevelt handle the banking crisis of the Great Depression? He turned control of the Fed over to Congress, which then created the FDIC to oversee the banking system. He closed all banks for four days so their viability could be checked by government officials and so the publics confidence in the banks could be restored. He established the Federal Reserve System, which gave the country a strong central bank capable of weathering financial storms. He commanded the Treasury Department to forgive the debts of borrowers whose savings had been depleted because of the financial crisis. (S)-Zearalenone, a natural product isolated from the fungus Gibberella zeae, exhibits useful biological activity, including antibiotic properties. In a total synthesis of (S)-zearalenone, an intramolecular Stille coupling process was employed as the penultimate procedure.3 The resulting coupling product was then treated with HCl to cleave the OR groups, thereby converting them into OH groups (as seen in Section 13.6), giving (S)-zearalenone. Draw the structure of (S)-zearalenone: What happens to the men who eat the Lotus? What dos this episode suggest about the main problem that Odysseus has with his men? Do you think Odysseus responds appropriately to the three men who long to stay with the Lotus-Eaters? Why or why not? One of China's foremost writers at the turn of the century was 2. According to the cartoonist, what was Americas most effective weapon in the Cold War> A friend tells you about a recent study dealing with the number of years of teaching experience among current college professors. He remembers the mean but can't recall whether the standard deviation was 6 months, 6 years or 16 years. Which was it? Find the area of the square. Round to one decimal place. Who were they? Thurgood MarshallMalcom XRose parks also caused "cascading" ecological effects by removing native pollinators, causing the subsequent decline of native plant species. help with this question, please Why would the author choose the genre of allegory to convey a lesson? 5. chris is a school teacher who earns $32,000 for the 10-month school year. however, the salary is paid out in 12 monthly installments. how much does is the monthly paycheck? _________ Find the zeros of the following quadratic functions.3) x2 + 5x + 6 = 0 How would you change bankruptcy law? Given that m