Your teacher takes a candle and cuts some wax from the bottom of it. She puts the bit of wax in a beaker and places it on a hot plate. Eventually, the wax melts and becomes liquid. Do you think this is a physical or chemical change?

Answers

Answer 1

Answer:

Chemical

Explanation:


Related Questions

Why are the DNA molecules considered to be semi-Conservative?

Answers

Answer:

do you have the pic?

Explanation:

Answer:

DNA replication is said to be semi-conservative because of this process of replication, where the resulting double helix is composed of both an old strand and a new strand. ... Semiconservative replication would produce two copies that each contained one of the original strands and one new strand.

Explanation:

Look at the graph below. A graph is shown with Absolute magnitude shown on y axis and Surface temperature in degree Celsius shown on x axis. The Dwarf stars are shown along a slanting line from coordinates 30,000 and minus 3 to 10,000 and minus 4. The Main Sequence stars are shown along a slanting line from coordinates 20,000 and minus 2 to 2,000 and minus 6. The giants are shown along a line parallel to the x axis from coordinates 5,000 and 2 to 2,000 and 3. The supergiants are shown along a line parallel to the x axis from coordinates 7,500 and 4 to 2,500 and 4. Point A has coordinates 20,000 and minus 4. Point B has coordinates 2,500 and minus 4. Point C has coordinates 5,000 and 2. Point D has coordinates 7,000 and 4. Which of the following stars is most likely to be red? Star A Star B Star C Star D

Answers

Answer:

Star A

Explanation:

If you look directly at the diagram, the dwarf stars are labeled under 'A' and are the least in mass and temperature.

Being the smallest and coldest, dwarf stars most commonly have red coloration, which would make them the obvious choice.

Star A which is a dwarf star has the coldest temperature, and therefore is a red star since red stars are the coldest stars.

What are stars?

Stars are a large self-luminous bodies whichbpriducw large amounts of heat energy and light energy as a result of the nuclear reactions occurring within them.

Stars have different colors and different sizes.

Red stars are the coldest stars and also the least massive.

From the chart, Star A which is a dwarf star has the coldest temperature, and therefore is a red star.

Learn more about red stars at: https://brainly.com/question/11562269

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3. Gregor Mendel cross-pollinated red and white snapdragon flowers,
What information indicates that incomplete dominance was achieved?"
O the offspring had heterozygous allels
O the offspring had recessive alleles
O the offspring were pink
O the offspring were red

Answers

The answer is a the offspring had heterozygous allels

which ecosystem likely has the highest biodiversity? W, X, Y, Z

Answers

Answer:

I think it's Z

Explanation:

Answer:

Z kuddos to the dude above me

Explanation:

PLEASE HELP QUICK Each cell of a human male normally contains _____. A. One X chromosome and one Y chromosome B. Two X chromosomes C. One X chromosome and two Y chromosomes D. Two Y chromosomes

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Answer:

The answer is A.

Explanation:

Wyatt has heart problems

Answers

???? what is you talking about

Answer:

If Wyatt has heart problems, Wyatt can eat healthy foods to try and decrease the problems, Wyatt can also make sure that his weight and blood pressure isn't to high. Wyatt can try to get seen at the hospital to make sure everything is fine.

PLEASE PLEASE HELP I WILL GIVE BRAINALIST AND EXTRA POINTS

Answers

1.a.

2.b

3. i can’t read the graph, could you resend the image and i can answer it or just say what the y and x axis titles are

Pls answer its due soon!!!

Answers

Explanation:

Meiosis makes genetic variety possible. It makes sperm & egg cells called gametes. Each gamete has 23 chromosomes. To make a diploid cell two gametes (sperm & cell) come together.

During prophase 1 the chromosomes pair up with their homologous pairs so they can transfer their genetic information and exchange it between each other. It makes recombinant chromosomes that influence the genetic diversity between the same people.

Now they are in metaphase 1, the chromosomes are in pairs in the middle of the cell. In anaphase 1, the chromosomes are pulled away by the spindle fibers. Then in telophase 1, there are two formed nuclei. Cytokinesis 1 then splits the cytoplasm.

Now they are in meiosis 2. During prophase 2, there are chromosomes and the spindles are starting to form again without crossing over like in prophase 1. In metaphase 2, chromosomes are going to line up in the middle in both cells unlike during metaphase 1 where the chromosomes were only in pairs.  In anaphase 2, only the chromatids are being pulled away by the spindle fibers. Next in telophase 2 the nuclei reform and the 2 cells are each going to divide into 4 cells. Finally, cytokinesis completely splits the cytoplasm.

Keeping in mind that each sex only produces one type of gamete cell (sperm or eggs), and of the independent assortment and crossing over of chromosomes, the end result will be diversity.

How many carbon atoms react with 14 molecules of oxygen to form 14 molecules of
carbon dioxide.

Answers

Answer:

28

Explanation:

Answer:

I think it might be 5.

Explanation:

8. What is one similarity between human skeletal muscles and some bacteria?
A. Both carry out autotrophic nutrition when food becomes scarce in the environment,
B. Both produce lactic acid when oxygen is not available for respiration.
C. Both reproduce asexually, using binary fission and regeneration.
D. Both lack a nuclear membrane surrounding the chromosomes.

Answers

Answer: B

Explanation:

Human skeletal muscles and some bacteria both produce lactic acid when oxygen is not available for respiration, which is similar. The best choice is B.

What are skeletal muscles?

Skeletal muscles enable humans to move and perform daily activities. They are essential to breathing mechanics and help preserve balance and posture. They also protect the vital organs of the body.

Skeletal muscle fibers can be found in muscles that are attached to bones. They are consciously regulated and have a striated appearance.

Lack of oxygen causes both skeletal muscle and bacteria to produce lactic acid through respiration.

Since both produce lactic acid when oxygen isn't available for respiration, option B is the proper response.

To learn more about skeletal muscles, refer to the below link:

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Select from the options below: O A. I have a purebred dog/cat. O. B. I have a rescue purebred dog/cat. O " C. I have a "shelter" adopted dog/cat. D. I don't have a dog/cat.​

Answers

Answer:

A

Explanation:

lol Purebred bloodhound

Hope you have a great day :D

PLEASE HELP
Fact vs. Opinion
Read each statement and decide if it is a fact (can be proven with evidence) or an opinion (personal belief).
8. Different cell types also have special duties, like building skin or bone, pumping out hormones, or making antibodies.
9. Animal cells are more interesting than plant cells.
10. Proteins are processed and lipids are manufactured in the smooth endoplasmic reticulum and Golgi apparatus.

Answers

Answer:

8 fact 9: opinion 10: fact

Explanation:

Answer:

8. Fact

9. Opinion

10. Fact

WHY IS A FOSSIL FOUND IN MULTIPLE LAYERS OF ROCK (TIME PERIODS) NOT CONSIDERED A RELIABLE INDEX FOSSIL?

Answers


Certain fossils, called index fossils, help geologists match rock layers. To be useful as an index fossil, a fossil must be widely distributed and represent a type of organism that existed for a brief time period. Index fossils are useful because they tell the relative ages of the rock layers in which they occur.

My rear end hejfjfjgiivif

What happened? A corpse is discovered in an enclosed room, there are no open windows, yet blowfly larva (stage 2) are found on the body. What does this tell you about the corpse?

Answers

Answer:

The corpse was deposited into the room from somewhere else

Explanation:

The larva could not have spontaneously emerged from the corpse if the blowfly had not somehow perched and laid its egg on it. Since there are no open windows, and perhaps, other openings to the room; the only plausible explanation for the emergence of the blowfly larva would be that the corpse was deposited into the room from somewhere else. From the initial location, the blowfly had perched and laid its egg on the body and the eggs only hatched while in the enclosed room.

The corpse changed into deposited into the room from someplace else as the larva couldn't have spontaneously emerged from the corpse if the blowfly had now no longer in some way perched and laid its egg on it.

Since there aren't any open windows, and perhaps, different openings to the room; the best potential cause of the emergence of the blowfly larva might be that the corpse changed into deposited into the room from someplace else. From the preliminary location, the blowfly had perched and laid its egg at the frame and the eggs best hatched even as withinside the enclosed room.

What are larvae?

Larvae are the caterpillars and worms that has some kind of grubs and maggots. It usually lives inside the mud.

Thus it is well explained.

To learn more about blowfly larva refer to link :

https://brainly.com/question/11659006

what were some of the earliest life forms? and what were they like

Answers

The earliest forms of life were microorganisms. These organisms appeared about 3.77 billion years ago.

What are proteins compounds involved in?

Answers

Proteins are compounds composed of carbon, hydrogen, oxygen , and nitrogen , which are arranged as strands of amino acids . They play an essential role in the cellular maintenance, growth, and functioning of the human body.

what happens to the neuron when u do drugs

Answers

Answer:

Explanation:

well different kinds of drugs can affect neuron activity an example is if you take pain pills it blocks the neurons that sense pain other drugs can give you high levels of dopamine, dopamine is the hormone that makes you feel good. that is why drug addictions are serious, and many cannot stop the addiction because it makes them feel good. and if you take the same dose over time your body gets a tolerance to the drug and you need a higher dose every time to get the same feeling and that can lead to an overdose or even death.

and no this is not copied :)

It is advantageous for a predator to prey exclusively on a single prey species.

Answers

Answer:

Assuming this is a true/false question, the answer would be false.

If a predator only preyed on one species, it would be at a disadvantage if the prey it feeds on gets wiped out in that region.

Therefore, your answer is False.

Pls I need answers at least one answer of any of the questions

Answers

Have you ever wondered how many times your heart beats in a day, a month, a year—or will beat in total throughout your life? Over an average lifetime, the human heart beats more than 2.5 billion times. For a person to keep their heart healthy, they should eat right, not smoke and get regular exercise. In this science activity, you'll measure your heart rate during different types of physical activities to find out which gives your heart the best workout to help keep it fit.
Background
A 150-pound adult has about 5.5 liters of blood on average, which the heart circulates about three times every minute. A person's heart is continuously beating to keep the blood circulating. Heart health experts say that the best ways to keep our hearts healthy is through a balanced diet, avoiding smoking and regular exercise.

Calculate the mass of an object whose weight is 400 N and acceleration due to
gravity is 10 m/s2​

Answers

Answer:

40

weight= 400N

acceleration due to gravity= 10m/s2

now

force=m*g

400=m*10

m=40kg

Those are questions
Here is the chart to go off

Answers

then the cayote and bear population would grow
Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong. Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.

20 points and will mark brainliest! Please explain how you got it though

Answers

Answer:

crossing over during meiosis

Explanation:

i just had biology last semester hope this helps

Question 14 (2 points)
(06.03 MC)
Which of the following correctly identifies a lymphatic organ and describes how it
can fight cancer? (2 points)
1) Lymph vessel; removes fluid from tissues
2) Lymph trunk; returns lymph to the blood
3) Spleen; replaces damaged red blood cells
4) Thymus; exposes lymphocytes to antigens

Answers

All of the statements correctly identify a lymphatic organ. In vertebrates, the lymphatic organs, also known as the lymphoid system, are an organ system that is a part of the immune system and works in conjunction with the circulatory system.

The Lymphatic OrgansLymphatic vessels, which are found all over your body and transport lymph away from tissues, are a network of capillaries (microvessels) and a huge network of tubes.By emptying into the corresponding subclavian veins, the lymph ducts, which are formed by the lymph trunks, restore lymph to circulation.Red blood cells that are outdated or damaged are eliminated by the spleen, which also removes cellular waste from circulation.Training specific white blood cells known as T-lymphocytes or T-cells is the thymus gland's main job.

Hence, all of the statements correctly identify a lymphatic organ.

How lymphatic system fights Cancer?Regional lymph nodes, which are predictive of distant organ metastases and poor survival, are accessible to tumor cells via lymphatic arteries.As the lymph fluid moves through the lymph nodes, it is filtered. B cells and T cells, two types of white blood cells, assault any viruses or bacteria they discover in the lymph.

To learn more about the Lymphatic System refer to:

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23. Which of the below names is not a type of biologist?
a) paleontologist
b) botanist
I
c) zoologist
d) astrophysicist
BA

Answers

Answer:

D

explanation: it literally has physics in its name

if you step on a sharp object muscles in your leg will rapidly put your foot away.


what is the correct term for this type of reaction?​

Answers

Answer:

Explanation:

Sharp object the reaction is a reflex its involuntary and it doesn't involve ur brain it protects u from damage.So u step on the sharp object whihc is a stimulus so the reaction is reflex its quick and automatic.

Hope this helps

Reflex arcs can also be more complex. For example, consider what happens when you step on a sharp object. As in the example above, a sensory (pain) neuron carries an impulse to an interneuron in the spinal cord. The interneuron synapses with motor neurons which pull your foot away from the sharp object, just as in the example above. However, if that was all that happened you would probably fall over! The interneuron also synapses with motor neurons which control the muscles of the other leg. These muscles adjust your position so you do not fall. The interneuron synapses with still other neurons, which carry the information about what has happened to the cerebellum (which coordinates the muscular activities) and the cerebrum, so that you become "conscious" of what has happened and can take further voluntary action.

What does it mean that earlobe attachment is a continuous trait?​

Answers

Answer:

If you decided that the continuous spectrum of earlobe shape was a more accurate way to describe the variation, you aren’t alone. Family and genetic studies show that earlobe attachment is actually not a simple trait, but rather a complex trait, affected by multiple genes and environmental factors.

Which plant propagation process insures some genetic diversity?

Answers

Answer:

Seed propagation takes place during sexual reproduction. The production of seeds through auto-pollination or crossed pollination ensures some genetic variation.

Explanation:        

Seeds ensure the existence of genetic variation between plants. There are two general crossing systems in plants, which depend on pollination type.  

Self-pollination occurs when the flower pollen is transferred to the same flower stigma, reaching that individual egg to fertilize it. These are autogamous systems. Crossed pollination occurs when the mature pollen is driven by different pollinator agents from one flower to another, reaching the other flower stigma and fertilizing its eggs. These are xenogamous systems.

Sexual reproduction gives more possibilities to different alleles of a gene that did not appear in one generation to express in the next generation. Both types of pollination allow genetic variation, however by the occurrence of crossed pollination there are more chances to ensure the variability of the species and survival to environmental changes. While by self-pollination there are more chances to express the same genotype of the parental plant. The Xenogamous system has the advantage of avoiding the effects of endogamy in a population.

Respiration requires _________,
which is a waste given off during photosynthesis

Answers

Answer:

it's oxygen

Explanation:

A claim for a CER, is a simple sentence that answers the scientific question without
explaining why it is a good answer.
True
False

Answers

I think that is true

:):):):):):)

why does the temp of the air increase with the height of the stratosphere?

Answers

Answer:

The hot air rises and the cool air falls

Explanation:

Other Questions
7. B=brown eyesb= blue eyesWhat is true about these two brothers that have brown eyes:One has genotype BB the other Bb.a. they have same phenotype and genotypeb. they have different genotypes and phenotypesc. they have same phenotype but different genotypesd. they have same genotype but different phenotypes Find the value of a. A machine that is run by its foot which may also be converted to electric power machine is known as The school store sells pens for $0.70 each and pencils for $0.30 each. Anthony spent $2.70 to buy a total of 5 pens and pencils.How many pencilsdid Anthony buy? ___ pencils Identifique agramaticalidades: vulgarismo, redundancia, palabra tab, solecismo, palabra bal, idiotismo, dequesmo, cosismo, pereza verbal, muletilla, modismos. 6 p La joven est ciega _________________________ Nio varn ________________________ Verdadles hablarverdad_________________________ Todo el mundo sabe______________________ Quieren pollo apanado?_ _________________________ Trajiste la cosa? ________________________ Exprese el nivel de lengua de estas locuciones: culto, vulgar, coloquial, regional, familiar, profesional. 6 p. Tiene porcentaje de bilirrubina_ ________________ Los taxis venan full ____________________ Ellos durmieron en el jorn. ________________ Pa qu estudiamos Espaol ______________ Pancho no asisti hoy. ________________ Sufre de diabetes ______________________ Why is it usual for architects, carpenters, and building inspectors all to be investigative?They all get their primary satisfaction from their relationships.O They all value order and power.They all value observation and organizing information and data.O They all prefer to deal with mechanical rather than aesthetic issues. Write an equation and then solve. Which branch of the military requires their law enforcement officers to complete a Single Source Background Investigation (SSBI)?OA. NavyOB. Coast GuardOC. ArmyOD. Air Force Give two ways to write the expression "x + 7" as a phrase. Which statements about freshwater sources are true? Check all that apply.O Only about 3 percent of Earth's water s fresh water.O Most of the fresh water on Earth is groundwater.O About 75 percent of the fresh water on Earth is frozen in ice sheets.O The largest source of usable fresh water is groundwater.O More fresh water is in the atmosphere than in rivers and lakes. What role does the orbital frontal cortex play in toons'response to fear? Vivian's project manager has asked her to analyze the project requirements before finalizing them. What should she look for and address during her analysis? Is y=-3.5x-10 proportional GIRLS--- PERIOD HELP What is the best way that you use that gets rid of period cramps- fast or just as long as it works within half an hour. ???help a girl out, I take ibuprofen but it doesn't always work or it takes too long to kick in. Is this "2C4H10 + 13O2 8CO2 + 10H2O" balanced or no? Whats one way a writer can keep readers engaged Which represents the order of increasing educational levels?professional assistant-technologist-techniciantechnologist assistant-professional-techniciantechnician professional-technologist-assistantassistant technician-technologist-professional A ray diagram is shown. Determine the intercepts of the line. Which best explains why DNA technology is important for disease prevention?A: It can help detect if a person is prone to certain diseases.B: It can manipulate genes to express desirable traitsC: It can treat diseases with the help of genetically modified foodD: It can increase the genetic diversity of a species.