What is the melting point of a substance?
(A) When its temperature changes from a
gas to a liquid.
B When its temperature changes from a
liquid to a solid.
© When its temperature changes from a
liquid to a gas.
D When its temperature changes from a
solid to a liquid.

Answers

Answer 1

Answer:

D.) when its temperature changes from a solid to a liquid

Explanation:

At the melting point the solid and liquid phase exist in equilibrium.

Answer 2
It’s d but I’m not sure

Related Questions

please help i am giving away brainiliest for the best answer


Which of these words describes diseases that are spread from one organism to another?


A. genetic


B. inherited


C. infectious


D. noninfectious


No dam links

Answers

Answer:

C. infectious

Explanation:

How are humans , technology , and the environment interrelated

Answers

Answer:

Humans , technology , and environment are always interrelated.

Explanation:

To procure nutrition, water, electricity, medications, construction materials, and several other objects, humans must communicate with the environment. Development of science and technology had already allowed us to take advantage of the eco system, but they have also resulted in massive environmental damage and exploits.

which type of muscle do you control voluntarily

Answers

ANSWER ——>(Skeletal muscle) fibers occur in muscles which are attached to the skeleton. They are striated in appearance and are under voluntary control.

Answer:

Skeletal

Explanation:

Im a well developed paragraph, give a concrete examples that illustrate why the United States should regulate trade.

Answers

I don’t think anyone is doing this

Why do we exhale more carbon dioxide than we inhale?

Answers

Answer:

When we exhale, we breathe out less oxygen but more carbon dioxide than we inhale. The carbon we breathe out as carbon dioxide comes from the carbon in the food we eat. The carbon dioxide is dissolved in the blood, carried to the lungs by the circulation, and breathed out.

Answer:

because our bodies take in O and put out  CO2

Explanation:

O is Oxygen

and CO2 is Carbon dioxide

What cell function can fail resulting in cancer development?

Answers

Answer:

cell division

Explanation:

Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.

Hope this helped!!!


In a typical forest, how much natural waste is made in one year?

20cm

40cm

60cm

Answers

I guess it’s 20cm because the soil in the forest decomposes most of the waste produced

Recall that the normal range for the hematocrit for a female is 37 - 47%, and the normal range for the hemoglobin level for a female is 12 - 16 g/100 ml. Describe hemoglobin and hematocrit values for the female with iron-deficiency anemia. Recall that the normal range for the hematocrit for a female is 37 - 47%, and the normal range for the hemoglobin level for a female is 12 - 16 g/100 ml. Describe hemoglobin and hematocrit values for the female with iron-deficiency anemia. They were both below normal. The hemoglobin was normal, and the hematocrit was below normal. They were both normal. The hemoglobin was below normal, and the hematocrit was normal.

Answers

Answer:

The hemoglobin was below normal, and the hematocrit was normal.

Explanation:

Hemoglobin is an essential protein in the bloodstream, as it is primarily responsible for the transport of oxygen throughout the body. It is also responsible for the red coloration of the blood, as it is present in the red blood cells. The hematocrit, in turn, is a laboratory parameter to determine the amount of red blood cells in the blood and also to determine the total blood volume.

Although the results presented by the hematocrit are important in determining whether a person has anemia, women with normal hematocrit values may be anemic, primarily because the hematocrit results may be associated with the amount of water in the blood. What is essential to determine if a woman is, in fact, with anemia, due to iron deficiency, is the hemoglobin values that are below normal.

in pea plants, purple are dominant to white.
complete the chart showing the genotypes and phenotypes possible.

someone help me i’m kinda lost on how i do this

Answers

Answer:

PP (genotype) - Purple (Phenotype)

Pp (Genotype - Purple (Phenotype)

pp (Genotype) - White (Phenotype)

Explanation:

The genotype allele combinations, in order to for purple to be dominant there are three possible genotypes

*Capital P represents a purple dominant allele

*Lowercase p represents a white recessive allele

(Alleles are the variants of a certain gene, ex: brown eyes, green eyes, etc. )

A Dominant always overpowers the recessive, the only way for a recessive to show would be to have two recessive alleles from both parents

ex: Green eyes recessive to Brown

B - Brown       bb = green eyes (from dad)  

b - green       bb = green eyes (from mom)  

this means that their child would have green eyes because there is no brown present

So for your pea plants to be purple

Pp = Purple      pp = white

PP = Purple    (yes there can be white recessive present, it just might not appear as a plant because of the percent of purple)

The colors or observations we see as the plant are the phenotypes

so the colors I have listed would be the phenotypes

Don't get alleles and phenotypes confused, alleles are the various forms of a gene, and phenotypes are what we see when the gene is brought through.

What mechanisms of evolution could be involved in the evolution of wolves and dogs? *

Natural Selection and Genetic Drift
Diffusion and Osmosis
Photosynthesis and Cellular Respiration

Answers

Natural Selection and Genetic Drift

evolution refers to the change in the characteristics of a species over several generations and relies on the process of natural selection.

there are four types of mechanism of evolution:

natural selectiongenetic driftgene flowmutation

the mechanism of evolution could involved in the evolution of wolves and dogs are:

natural selection and genetic drift

natural selection favored wolves that were bold and friendly. bold and aggressive wolves would be killed and hence unable to breed. this allowed bold and friendly dogs to breed, which was key to eventual evolution into dogs.    

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dna replication

aaccagaccca
ttggtctgggt

Answers

Answer: dna replication happens in interphase before the mitosis

Explanation: During interphase the cell’s DNA inside the nucleus replicates forming two strands of DNA or chromosomes. In the interphase the DNA replicates in the S phase. Don’t confuse with G1 since in G1, which comes before S phase, replicates the cellular contents needed for this process

PLEASE HELP WITH MY BIOLOGY

Answers

answer is the second option by the way :)) !

Please helppppppp!!!!

Answers

answer : moon

explanation :
the only logical answer

Give an example of how biotechnology might be used to cure disease.

Answers

Answer:

Biotechnologies may be used to study the genetic material of viruses and bacteria to determine whether a disease is caused by particular disease-producing agents. Its techniques are also used to understand how genetic factors contribute to human disease.

Explanation:

Answer:

These products help treat and prevent diseases. From the Ebola vaccine to mapping human DNA to agricultural impacts, medial biotechnology is making huge advancements and helping millions of people. Some of the most recent uses of biological tech is work in genetic testing, drug treatments, and artificial tissue growth.

Explanation:

SOMEONE HELP ME PLSSSS IT'S AN EMERGENCY :(((

Answers

Answer:

I belive the answer is  C

Explanation:

What happens to the heat and moisture from the ocean?
a.) They rise into the atmosphere
b.) They sink into the warm deep current
c.) They become precipitation
d.) They move parallel to the hurricane

NEED ASAP!!

Answers

Answer:

The answer is A

Explanation:

When water molecules are heated, they exchange freely with the air in a process called evaporation. Ocean water is constantly evaporating, increasing the temperature and humidity of the surrounding air to form rain and storms that are then carried by trade winds.

The answer to your question is A

Which is an example of genetic diversity? PLS HELP temperate rain forest and a tropical rain forest bees, jack rabbits, diamondback rattlesnakes bacteria, garter snakes, tigers variations in a flock of starlings

Answers

Answer:

temperate rain forest and a tropical rain forest bees.

Explanation:

The temperate rain forest and a tropical rain forest bees is the example of genetic diversity because the same organisms has different features which allows them to live in different climatic conditions due to their variation in genetics. The environment of temperate rain forest is different from tropical rain forest so the bees specie that live in both environment are different from one another in their genetic makeup and which is an example of genetic diversity.


Of the 3 phases of water (solid, liquid, and gas), which
has the greatest density due to the positions of the
water molecules?

a) liquid
b) solid
c) gas

Answers

Answer:

solid

Explanation:

Matter in solid state have the highest density, with the molecules tightly packed together.

Answer:

Water has a higher density in the liquid state than the solid, so ice cubes float.

plz mark me as brainliest.

Please help me
Which means a change in position?

A. force
B. speed
C. velocity
D. motion

Answers

Answer:

D. motion

Explanation:

Force is something that acts on an objects (e.g gravity)

Speed is how fast something moves

Velocity is sort of like speed and is the rate of change of an objects position

Which is of the following is necessary for natural selection? 1. There must be a shortage of food 2. There must be a change in the environment, causing individuals to change 3. There must be some genetic differences among the individuals of a species 4. all of the above

Answers

Answer:

It's 3!

Explanation:

There must be genetic differences so the best fitted organisms will survive. If they were all the same then no one would be best fitted and Natural Selection wouldn't be able to occur

It's not 1 because a food shortage isn't required, there's always competition for food sources

It's not 2 because there doesn't need to be a change in the environment for natural selection, just for evolution.

And it can't be 4 if 1 and 2 are wrong!

Hope this helped!

Please help fast!!!!5. Challenge: A food web is a more complicated
diagram that shows the feeding relationships of all
the organisms in the ecosystem. As with a food
chain, an arrow pointing from species A to
species B indicates species B gets its energy
from species A.
Nassau
grouper
Yellowtail
snapper
Hawksbill
sea turtle
Long-spined
sea urchin
In the diagram at right, create a food web by
drawing arrows ( - ) to show which organisms
obtain energy from others. Hand draw or click on
the image and select ED
Queen
angelfish
Stoplight
parrottish
Sponges
Star
coral
Staghorn
coral
Plankton
Symbiotic algae
Algae

Answers

Answer: there is no diagram and if you could explain that would be helpful

Explanation: but I can do some yellow tail snapper(a) go’s to a Nassau grouper(b). long spine sea urchin(a) goes to hawks bill seaturtle(b)

A(n)\ is a system composed of living organisms and their interaction with the surrounding environment, where the main focus is the interaction and relationship between species .
1.habitat
2.biome
3.environemnt
4.ecosystem

Answers

Answer:

The correct answer is 4.ecosystem.

Explanation:

An ecosystem is a system, that is, a set of elements that interact with each other, in which such elements are: physical environment, living beings and their interactions (predator-prey, parasite-host, competition, symbiosis, pollination, distribution of seeds , etc.) The interrelation between living beings (competition, parasitism, etc.) occurs through cycles of matter and energy flows on which the functioning of the entire ecosystem depends.

is the transforming factor made of proteins?

Answers

Answer: Understand about transformation as part of this. ... Is protein the transforming factor? protein-destroying enzymes---made the strains grow so concluded that protein doesn't transform because the bacterial colonies were still transformed. He concluded that protein could not be the transforming factor.

Explanation:

Why are the carbonate ion level in the water decreasing?

Answers

Answer:

Carbon dioxide reacts with seawater to form carbonic acid, which releases hydrogen ions, reducing pH.The additional hydrogen ions released by carbonic acid bind to carbonate (CO32-) to form bicarbonate (HCO3–), decreasing the amount of carbonate in the water.

A behavioral or physical adaptation is something ___
helps a species survive
makes a species prettier to look at
makes a species become extinct
prevents a species from surviving

Answers

Answer:

Explanation:

The answer is

helps a species survive

Answer:

helps a species survive

Explanation:

Which type of wetland includes a mixture of salt water and fresh water?
bogs
swamps
inland marshes
coastal wetlands

Answers

The answer is coastal wetland :)

Answer:

Confirming

Explanation:

Stars ----- Planets
Alike and Different

Answers

Answer:

Explanation:

Same

Most stars are round. Planets are too.Most stars are large distances from each other. So are planets (not as large though)Most stars  have colors associated with them. So do planets.

Different

Stars are many magnitudes of temperature warmer than planets.Stars are mostly gaseous. Planets are solid.Stars are made of fundamental materials. Most planets have many elements on their surface and atmosphere if they have an atmosphere.The star's diameter is many times larger than the planets.Generally speaking, the planet's density is between 1.5 to 5 times more than the stars.

name two disaccharides which are reducing sugar​

Answers

Answer:

lactose and maltose

Explanation:

only sucrose is a non reducing sugar

Answer:

Two reducing disaccharides sugar : Lactose and maltose.

How is glucose conserved during cellular respiration?

Answers

Specifically, during cellular respiration, the energy stored in glucose is transferred to ATP (Figure below). ATP, or adenosine triphosphate, is chemical energy the cell can use.

(Will give brainliest if correct and no links) Based on the image in figure 2, would the creation of one type of kidney cell be sufficient in forming a functioning kidney? Explain why?

Answers

Answer:

Yes.

Explanation:

The creation of one type of kidney cell will be sufficient in forming a functioning kidney because one type of cells allow the kidney to perform its one function i.e. filtering of blood. Epithelial stem cells are the cells that is responsible for the function of a kidney. The kidneys have only epithelial stem cells which performs only one function which removing water material, excess salts and water from the body. so we can say that one type of kidney cell is sufficient for the functioning of kidney.

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