Answers
There are six distinct changes of phase which happens to different substances at different temperatures. The six changes are:
Freezing: the substance changes from a liquid to a solid.
Melting: the substance changes back from the solid to the liquid.
Condensation: the substance changes from a gas to a liquid.
Vaporization: the substance changes from a liquid to a gas.
Sublimation: the substance changes directly from a solid to a gas without going through the liquid phase.
Deposition: the substance changes directly from a gas to a solid without going through the liquid phase.
For most substances, the melting and freezing points are the same temperature; however, certain substances possess different solid-liquid transition temperatures.
Most liquids freeze by crystallization, the formation of a crystalline solid from the uniform liquid.
Freezing is almost always an exothermic process, meaning that as liquid changes into solid, heat is released.
The energy released upon freezing, known as the enthalpy of fusion, is a latent heat, and is exactly the same as the energy required to melt the same amount of the solid.
Terms
NucleationIn the context of freezing, nucleation is the localized budding of a crystalline solid structure.
FreezingFreezing or solidification is a phase transition in which a liquid turns into a solid when its temperature is lowered to its freezing point.
Freezing, or solidification, is a phase transition in which a liquid turns into a solid when its temperature is lowered to or below its freezing point. All known liquids, except helium, freeze when the temperature is low enough. (Liquid helium remains a liquid at atmospheric pressure even at absolute zero, and can be solidified only under higher pressure.)
For most substances, the melting and freezing points are the same temperature; however, certain substances possess different solid-liquid transition temperatures.
Hope all these helps
Related Questions
Select the correct answer.
Which statement about energy is true?
A. Energy can't be created or destroyed.
OB.
OC.
O D.
Energy can't transform into different forms.
Organisms at the top of food chains have access to the most energy.
Energy can undergo transformations only in animals.
Answers
Answer:
c
Explanation:
Energy cannot be created or destroyed is true.
Still, stuck? Get 1-on-1 help from an expert tutor now.
Answer:
c
Explanation:
it is the correct answer I think
after a wheat field is cleared,wild grasses and weeds start growing.the process is called
Answers
A field that was formerly planted with crops will eventually be stripped of its native flora and planted more with crops. Shifting cultivation systems are well-established and stable cycle between periods of cropping.
What does the succession process entail exactly?Ecological succession is the process in which a town's species or habitat mix changes over time. Unless a "climax community," such as a big forest, is reached or a major disruption, like a fire, occurs, these communities start replacing one another.
First succession is what?Two different succession patterns exist. Primary succession is first. Primary succession takes place at a place where there has never been a community before. Freshly exposed rock areas, dunes, and lava flows are examples of places wherein primary succession takes place.
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Describe the mechanism of glycolysis in detail
Answers
The process of Glycolysis is a catabolic process in which two molecules glucose goes through a ten- step pathway and yield two molecules of pyruvate . It is a major part of carbohydrate metabolism .
Mechanism Of Glycolysis
The glycolysis is also known as EMP pathway and it is involved in both aerobic and anaerobic conditions .There are two phases in the mechanism of glycolysis in which 5 reactions takes place in each phase and the process of glycolysis takes place in cytosol
Preparatory phase refers to the generation of two molecules of glyceraldehyde 3-phosphate from one molecule of glucose which further goes into the payoff phase . In this phase two molecules of ATP are used and two regulatory enzymes were involved in this reaction .
Payoff phase refers to the further break down of two molecules of glyceraldehyde3-phosphate to two molecules of pyruvate . In this phase four molecules of ATP and two molecules of NADH are generated . In this phase only one regulatory enzyme is involved which is the breakdown of PEP to pyruvate .
Both the phases of glycolysis takes place in the cytoplasm and there are three enzymes that involved in regulating the glycolytic pathway .This process is also known as the catabolic process .
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A certain population of flowering plants depends on bees for pollination. What will happen to this population if there is an increase in the number of pollinating bees?
A.
The population will not change.
B.
The population will not be able to reproduce.
C.
The population will decrease.
D.
The population will increase
Answers
If there is an increase in the number of pollinating bees, then D. The population will increase.
What is the natural process phenomenon of pollination?The natural process phenomenon of pollination refers to the fecundation mechanism in plants that involves the transport of pollen by means of insects from one plant to another, thereby it is associated with an increase in the number of plants.
Therefore, with this data, we can see that the natural process phenomenon of pollination is based on the movement of bees that carry out pollen.
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Answer:
the answer is increase
Explanation:
i had this one be for
How can a change in DNA sequence result in a change in phenotype?
Answers
All mutations will result in a change in phenotype, regardless of whether the DNA sequence, amino acid sequence, or mRNA sequence altered.
How does your phenotype result from your DNA sequence?An organism's hereditary genes determine its phenotype, or physical characteristics and behaviours. Genes are specific DNA sections that encode for the creation of proteins and specify unique features.
How is the phenotypic impacted by a Genetic change?New phenotypes are rarely created. Mutations may be inherited and hence transmitted from one person to another. If a mutation produces a novel phenotype that makes an organism more suited to a certain environment, it can swiftly change the attributes of the individuals in a species.
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if a control group is not included in experiment it would be difficult to
Answers
Answer:
find the right answer
Explanation:
if the control group is nit included in the experiment it would be hard to get the right solution(answer).
I think hopefully this helps.
Need help with mutated DNA strand and knowing what type they are if they are insertion, deletion or substitution.
Answers
The mutated DNA sequence has undergone a substitution mutation.
This is because there is a change in a single nucleotide, where a C replaces the original G in the second codon of the sequence.
In an insertion mutation, one or more nucleotides are added to the sequence, while in a deletion mutation, one or more nucleotides are removed.
However, in this case, there is no evidence of nucleotides being added or removed from the sequence.
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1. What is an ideal gas?
Answers
Answer: An ideal gas is a gas that conforms to the ideal gas law, which is a relation between pressure, volume, and temperature. it is a theoretical gas composed of many randomly moving point particles that are not subject to interparticle interaction. :)
Explanation:
Which organism is likely to carry out the process shown in the diagram?
CO, + H,O
Heat
www
Chloroplast
Mitochondrion
MASS
Respiration
OA. Barn owl
OB. Mushroom
C. Alligator
-0₂
Sugar
ATP
Answers
The organism that is most likely to carry out the process shown in the diagram is Calla lily (option D).
What is cellular respiration?Cellular respiration is the process by which cells obtain chemical energy by the consumption of oxygen and the release of carbon dioxide.
According to this question, a diagrammatic representation of cellular respiration is given in the above chart. Based on the chart, chloroplast is included to release oxygen gas needed for respiration.
Only green plants possess chloroplast used for photosynthesis, hence, Cana lily is the most likely organism to carry out the above process.
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nutrition is broadly defined as the study of how . nutrition is broadly defined as the study of how . how food nourishes the body and influences health to identify reliable sources of nutrition information food choices are influenced by the media to lose weight
Answers
Nutrition is broadly defined as the study of how food nourishes the body and influences health. The correct answer is A.
Nutrition is broadly defined as the study of how food and drink affect the health of an individual, as well as how these factors can be used to improve health.
This includes understanding how to identify reliable sources of nutritional information, how the media influences food choices, and the effects of diet on weight loss and other health conditions.
Additionally, research has shown that certain foods may have additional health benefits, such as reducing inflammation, improving mental health, and boosting the immune system. It is important to be mindful of our food choices, as these decisions can have an impact on our overall health and wellbeing.
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Proteins in the plasma membrane are often the target of medicines. In paragraph format (at least four sentences), explain why this is the case.
Answers
Argeting proteins in the plasma membrane offers a promising approach for developing new medicines that can be used to treat a wide range of diseases and conditions.
What is Plasma Membrane?
The plasma membrane, also known as the cell membrane, is a thin layer of lipid and protein molecules that surrounds and encloses the cell. It serves as a barrier between the interior of the cell and its external environment, regulating the movement of substances in and out of the cell. The plasma membrane is composed of a phospholipid bilayer, which consists of two layers of phospholipid molecules with their hydrophilic (water-loving) heads facing outward and their hydrophobic (water-fearing) tails facing inward. Embedded within the phospholipid bilayer are various proteins, which perform a variety of functions such as transporting molecules across the membrane, receiving signals from other cells, and providing structural support.
Proteins in the plasma membrane are crucial for many cellular processes, including cell signaling, transport, and recognition. As such, they are often the targets of drugs and medications because they can be used to modulate or disrupt these processes. For example, many cancer drugs target proteins in the plasma membrane that are involved in cell signaling pathways, as this can help to slow down or stop the growth of cancer cells.
Additionally, drugs that target membrane transporters or channels can be used to regulate the flow of ions or molecules in and out of cells, which can be useful for treating diseases such as hypertension or cystic fibrosis.
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what is the difference between the spermatozoon and spermatogonium?
Answers
Answer:
Sperms are the male gametes produced in the seminiferous tubules of the testes. The main difference between spermatogenesis and spermiogenesis is that spermatogenesis is the formation of sperm cells whereas spermiogenesis is the maturation of the spermatids into sperm cells.
Pls give Brainliest!!
Which statement best describes the difference between photosynthesis and
cellular respiration?
A. Both processes have the same function in the carbon cycle.
B. The materials needed for one process are produced by the other
process.
C. Cellular respiration supplies engergy to cells, but photosynthesis
does not
O D. Photosynthesis occurs in plant cells, but cellular respiration does
not.
Answers
Answer:
B.
Explanation:
:)
Choose an ecosystem from
somewhere around the world
(rainforest, desert, coral reef, etc.)
and create your own food chain
with organisms from this
ecosystem. Include a producer,
primary consumer, secondary
consumer, and tertiary consumer.
Add a decomposer if you can
think of one.
Answers
Explanation:
Desert
Cactus-butterfly-lizard-snake
How do you determine what the main idea is and what support would you use?
Answers
A kind of biological heredity known as "Mendelian inheritance" adheres to the theories put forward by Gregor Mendel in 1865 and 1866 and later rediscovered in 1900.
Who was Mendel?Mendel raised and experimented on over 5,000 pea plants between the years of 1856 and 1863. He derived two generalizations from these tests, which ultimately came to be known as Mendel's Principles of Heredity or Mendelian inheritance.
When Mendel crossed white blossom and purple flower pea plants (the parental or P generation), he found that the outcome was not a hybrid. The progeny (known as the F1 generation) had purple flowers rather than a hybrid of the two.
Mendel self-fertilized the F1 generation of pea plants to produce the F2 generation, which had a 3 to 1 ratio of purple to white flowers.
Therefore, A kind of biological heredity known as "Mendelian inheritance" adheres to the theories put forward by Gregor Mendel in 1865 and 1866 and later rediscovered in 1900.
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Describe the general body morphology of a sponge. Then discuss some of a sponge's specialized cells, their function, and where they can be found. Using your best grammar, write 4-6 sentences
Answers
A sponge is an aquatic invertebrate animal with a diverse body structure, sponges are composed of specialized cells such as collar cells or choanocytes, and are found in the inner choanocyte layer.
The general body morphology of a sponge involves the presence of small pores or holes (ostia) on the body surface, which allow water to flow into the sponge. The water is then circulated inside the body of the sponge, which allows it to trap tiny organisms or organic particles for food consumption. They have a flagellum and collar-like structure that help to capture food.
Additionally, sponges contain amebocytes, which are mobile cells responsible for food uptake and waste disposal, and spicules, which provide support and protection for the sponge. These specialized cells are found in the inner layer of the sponge body.. Another specialized cell type is the amebocytes, located in the mesohyl, which play a role in digestion, nutrient transport, and structural support.
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6. What is the role of chlorophyll and other pigments during photosynthesis?
O a. To attach a phosphate to an ADP molecule to make ATP
O b. To use sunlight energy to break apart glucose molecules and release their energy
c. To carry hydrogen ions back and forth between a cell's mitochondria and chloroplasts
O d. To capture photons and send high-energy electrons to the electron transport chain
7. Which of the following correctly matches the organelle with its function in a eukaryotic cell?
a. Mitochondrion-production of proteins
O b. Chloroplast-controls passage of materials into and out of the cell
O c. Lysosomes-protects and maintains heredity material
O d. Endoplasmic reticulum-transports materials throughout the cell
8. Two scientists observe a plant growing without any water added to the soil. Doctor Allen offers the
hypothesis that this species of plant must derive water from the atmosphere. Doctor Bateman does not
agree, instead hypothesizing that plans must keep water in its roots so it can survive when droughts
occur. What does this situation demonstrate about the formation of scientific knowledge?
a. Whenever experts contradict each other, it points to a basic flaw in the theory.
b. Disagreement and conflict are a natural part of scientific research.
c. Experts should not publicize their findings until they are sure they are correct.
d. Whenever strange results are observed, it is best to create a theory before testing it.
Answers
Answer the answer is c mu guy
Four equal strips A B C and D were cut from a potato whose cell sap concentration was 28.5%sugar. The strips were placed in sugar solutions of different concentrations as follows;A-10%,B-15%,C-25%,D-35%. 1.What changes would you expect in strips A and D? 2.Account for the changes in A and D.
Answers
Answer: The concentration of sugar in solution D is 35%. Solution D is a hypertonic solution as the solute concentration is more than the potato cell concentration. Therefore, water will move into the cell to equalize the osmotic pressure gradient between the cell and the solution. Hence, strip D will swell.
Explanation:
In this process humans would select animals or plants with a trait they desire then breed those organisms to produce more individuals with the desired traits.Natural selectionContaminationInseminationArtificial selection.
Answers
The correct answer is Artificial selection.
Humans interfere in the natural process of organisms that they slect the desirable trait for the organisms that they think best will help the organisms to adapt well into their environment.
Which organisms can reproduce using the process of fragmentation
Answers
Fragmentation is a form of asexual reproduction and is seen in annelids, fungi, cyanobacteria, sponges, and flatworms.
In Fragmentation, an organism divides itself into a number of fragments. It occurs when an organism completely breaks down independently irrespective of the other parts. Each one of these fragments matures into fully grown adults that are clones of the original organism.
Asexual reproduction usually involves the participation of a single parent alone can produce new offspring. The newly produced individual is genetically identical to one another and its parent. Both multicellular and unicellular organisms divide by fragmentation which is asexual reproduction.
Fragmentation is the most common method of reproduction in lower invertebrates. It is seen in many organisms including filamentous cyanobacteria, algae, lichens, molds, many plants, and animals such as flatworms, annelid worms, sponges, and sea stars.
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The organisms that can reproduce by fragmentation are Option d Sponges and Sea anemones.
Fragmentation is a form of asexual reproduction in which an organism breaks into two or more fragments, and each fragment develops into a new individual. Both sponges and sea anemones are examples of organisms that exhibit this mode of reproduction.
Sponges are simple multicellular animals that lack true tissues and organs. They possess a porous body structure, and when a sponge is fragmented, each fragment has the potential to develop into a new sponge through regeneration. These fragments contain specialized cells called archaeocytes that can differentiate into various cell types required for the formation of a new sponge.
Sea anemones, on the other hand, are marine animals belonging to the phylum Cnidaria. They have a cylindrical body with tentacles surrounding their mouth. When a sea anemone is fragmented, each piece can regenerate into a complete individual. The process involves the differentiation of cells within the fragments, leading to the development of new tentacles, body parts, and eventually a mature sea anemone.
Both sponges and sea anemones have remarkable regenerative abilities, allowing them to reproduce through fragmentation. This form of asexual reproduction enables them to colonize new areas, expand their population, and adapt to changing environmental conditions. Therefore the correct option is D
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The Question was Incomplete, Find the full content below :
The organisms which can reproduce by fragmentation are:
(a) Corals and Sponges
(b) Corals and Spirogyra
(c) Sea anemone and Spirogyra
(d) Sponges and Sea anemones.
Which organism is likely to carry out the process shown in the diagram?
CO, + H,O
Heat
www
Chloroplast
Mitochondrion
MASS
Respiration
OA. Barn owl
OB. Mushroom
C. Alligator
-0₂
Sugar
ATP
Answers
Answer:
C
Explanation:
took the test
How are most traits inherited
Answers
(7.7A)
A polar bear eats seal blubber to keep itself warm. What kind of energy transformation is
occurring within the polar bear during this process?
A. Chemical energy to radiant energy
B. Chemical energy to thermal energy
C. Radiant energy to chemical energy
D. Thermal energy to chemical energy
Answers
Answer:
I'm not 100% sure but I do believe the answer is B.
Explanation:
It's a chemical energy that would go on to warm up the polar bear in a thermal state...
I hope that makes sense? Have a good day and good luck! :)
Snake venom is modified saliva that is secreted from glands on the sides of the snake's head.
Some types of venom functions by changing the shape of the enzyme cholinesterase in the
snake's prey. Cholinesterase is an enzyme that functions as a neurotransmitter that allows
the brain to control muscle movement.
What is the result of the shape change in the enzyme cholinesterase?
F The enzyme will no longer catalyze the reaction, which causes the prey to lose muscle
control.
G The substrate will change shape to match the enzyme so that the prey muscles continue
working.
H The enzyme will be capable of binding to more substrates that allow the prey to escape
the snake.
J
A new product will be made that causes the prey's muscles to not function as well as
they should.
Answers
The cholinesterase enzyme's altered shape prevents it from catalyzing the reaction, which makes the prey lose control of their muscles.
Where do snakes' venom glands reside?The venom gland, a salivary gland modified, is found slightly below and behind the eye. The size of the venom gland depends on the size of the snake, and this figure depicts the Timber Rattlesnake's venom gland's approximate size in relation to its skull (Crotalus horridus).
What are the names of venom glands?Before being transported by a duct to the base of channeled or tubular fangs, the venom is first stored in huge glands called alveoli.
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which known species has a genotype that is most similar to that of the unknown plant
Answers
Answer:
What is the genotype of the unknown male?
Rr
The genotype of the unknown male plant must have been Rr (a fact deduced from the two gametes this plant must have provided for the Punnett Square to work). The phenotype of this plant must have been - red flowers.
Explanation:
That's it, Hope it helps.
Meiosis allows a plant to produce offspring plants with which characteristic?
a high rate of random mutations
traits identical to those of the parent plant
characteristics adaptive to the plant's environment
unique combinations of genetic material
Answers
Answer:
unique combinations of genetic material
Explanation:
Meiosis is one of the two types of cell division in which an organism produces daughter cells that are genetically different from the parent cell. Meiosis is the cell division which the cell uses to produce gametes (daughters cells).
The daughter cells are different genetically in the sense that they contain a different combination of chromosomes, which occurs in a process called CROSSING OVER. Therefore, a different but unique combination of the genetic material is actualized by MEIOSIS
When a protein encoding gene is transcribed, the RNA molecule that is produced is referred to as ______ RNA (mRNA)
Answers
The majority of genes found in a cell's DNA dictate the amino acid composition of its proteins; these genes' translated products, known as messenger RNA (mRNA) molecules.
They ultimately control how proteins are made. By means of the transcription and translation processes, messenger RNA (mRNA) is a type of RNA that carries genetic information from DNA to protein. Making an RNA copy of a gene's DNA sequence is a process known as transcription in the context of genomics. The messenger RNA (mRNA) copy carries the DNA-encoded protein information for the gene.
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What do you do if a tornado is predicted?
Answers
Answer: You will need to prepare just incase it happens. Meaning buy grocceries, shelter and comfort items. And make sure to stay indoors at al times and away from windows or anything dangerous.
Hope this helps :) If so brainliest would mean alot thanks!
Explanation:
HELP PLS ASAP I MIGHT FAIL
Answers
Answer:
a and b
Explanation:
because I have took the test before
Which of the following represents an in vivo method for cultivating viruses.
a.) HeLa cells
b.) Pure bacterial cell cultures
c.) Embryonated chicken eggs
d.) Lung cell culture
Answers
Embryonated chicken eggs represents an in vivo method for cultivating viruses. (option c)
To cultivate viruses in a living system, an in vivo method is used. Among the options provided, embryonated chicken eggs are the most commonly used method for culturing viruses in a living organism.
HeLa cells: HeLa cells (a) are human cancer cells commonly used in laboratory research, but they are not a living organism suitable for virus cultivation.
Pure bacterial cell cultures: Bacterial cell cultures (b) are often used to study bacteriophages, which are viruses that infect bacteria. However, this method involves culturing viruses in bacterial hosts and does not involve a living organism.
Embryonated chicken eggs: Embryonated chicken eggs (c) are a widely used method for virus cultivation. In this method, viruses are injected into the developing embryo, which provides an environment for viral replication. The embryos provide a controlled and nutrient-rich environment for the viruses to grow and propagate.
Lung cell culture: Lung cell culture (d) involves growing lung cells in a laboratory setting. While this method can be used to study certain viruses, it is an in vitro (outside a living organism) method rather than an in vivo method.
In conclusion, the in vivo method for cultivating viruses among the options provided is embryonated chicken eggs. This method provides a living system in which viruses can replicate and propagate. (option c)
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