hey could someone help me with this immediately!!! i’ll mark brainiest if u don’t guess or leave a link!!
Answers
When a candle burns, the oxygen in the air reacts and forms carbon dioxide. A new substance, the CO2 is formed. So it is a chemical change. When the candle melts, no new substance is formed and the molten wax can be again solidified and made into a candle and it is a reversible change.
Related Questions
Which is the best definition of a phylogenetic tree?
Answers
Answer: A phylogenetic tree is a branching diagram or a tree showing the evolutionary relationships among various biological species or other entities based upon similarities and differences in their physical or genetic characteristics.
Explanation:hope I helped (can I get braincrown)
Definition: A phylogenetic tree is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor
Hope this helps!
Kaden is making waves using a string tied to a doorknob. He moves the string up and down and creates four waves, as shown in the picture below.
Kaden wants to create more than four waves using the same piece of string. What could he do to create more waves in the same amount of time?
A.
hold the string tighter as he moves it up and down
B.
pull the string away from the wall before moving it up and down
C.
move the end of the string up and down more quickly
D.
move the end of the string up and down more slowly
Answers
Answer:
C
Explanation:
For standing waves, the areas where the amplitude is zero are referred to as nodes while the areas where the amplitude is at the maximum are known as antinodes.
A standing wave derives its feature primarily from the fact that there are certain points along the medium of transmission that are apparently seeing to be standing still with no displacement whatsoever. At the same time, there exist opposing points to the points of zero displacements. These points have a maximum displacement in both the positive and negative directions. While the former is referred to as nodal points, the latter is known as the antinodal points.
3. In a food web which organisms are decomposers?
Answers
These are usually multicellular animals such as earthworms, crabs, slugs, vultures, etc.
Hope it helps![tex] \huge\color{purple}{보라 해}[/tex]Who is known as the father of Natural selection?
Answers
Answer:
Darwin's theory.
Explanation:
The DNA sequence for Species A is mutated to: GAC-TGA-CTC-CAC-TGG. What is the effect, if any, on the protein produced?
Answers
Answer:
Due to the DNA sequence for species A is mutated the amino acid squenced would be changed and a new amino acid would be formed
Explanation:
In sexual fertilization, what is responsible for the genetic composition of the offspring?
A
The offspring receives all of the genetic information from the father.
B.
Each parent provides the offspring with half of their genetic information.
с
The offspring receives all of the genetic information from the mother.
D
Each parent provides the offspring with all of their genetic information.
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Oils are ___, or "water hating."
A. hydrophobic
B. hydrophilic
C. polar
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Answer:
A
Explanation:It iz wat it iz
Considerando la importancia de la biodiversidad plantea 5 propuestas de solución a los problemas económicos
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PROPUESTAS DE SOLUCION
1. Una especie de la biodiversidad es la quinua, cuya producción orgánica beneficia a las familias económicamente mediante la venta de este producto y son de mayor demanda en el mercado nacional e internacional, generando más trabajo y protección de la salud y el ambiente.
2. Una especie de la biodiversidad es el plátano, cuya producción puede beneficiar a las familias, ya que muchos pueden preparar chifles con los plátanos cosechados.
3. Una especie de la biodiversidad es la avena, cuya producción beneficia a las familias, ya sea consumiéndola o vendiéndola, este producto tiene diversos usos y beneficios, muchos pueden venderla, hacer mascarillas para el cuidado de la piel , postres, diversas recetas de cocina ,etc.
4. Una especie de la biodiversidad es el arroz cuya producción puede beneficiar a las familias, ya que muchas familias en cada plato de comida el arroz es infaltable, muchos pueden venderlo, hacer postres con el arroz y venderlo y diversas recetas de cocina.
5. Una especie de la biodiversidad es la papa, con ello pueden preparar diversas recetas de cocina y vender los platos ya en persona o por delibery.
Explicación: Espero haberte ayudado
How are the Hawaiian honeycreepers an example of adaptive radiation?
There were a large variety of honeycreepers that first inhabited the island. They found many different niches, so they were all able to survive.
The honeycreepers that first inhabited the island were able to adapt as the island changed, so that population of birds was able to survive.
There was a diversification of honeycreepers (each with different beak shapes) to help fill various ecological niches.
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Answer: In adaptive radiation, many different species evolve from a single ancestor species. Each new species evolves to exploit a different niche, such as food source. In the example above, Hawaiian honeycreepers evolved a range of bill forms in response to available food sources on the Hawaiian archipelago. The honeycreepers dispersed from one founder species, and evolved in response to natural selection based on different food sources in their isolated habitats provided by water. Seed-eating birds evolved thick, short beaks.
PLEASE HELP
A student i studying several species that belong to the plant kingdom. Which two are most closely related
A Fermaldia pandurata and Ficus pandurata
B Castilla elastica and Ficus elastica
Ficus benjamina and Ficus lyrata
Bromus japonicus and Ipomoea violacea
Answers
Answer: the answer is A
Explanation: i just did it
19. What is Chemical weathering?
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Answer:
Explanation: Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.
What is the purpose of mitosis?
a. Growth and repair of body cells
b. Makes new gametes
c. Random generation of new cells in bacteria
d. Only happens during early development
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Briefly describe ANY environmental condition that affects photosynthesis.
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Answer:
Light intensity
Explanation:
without enough light a plant cannot photosynthesise very quickly even if there is plenty of water and carbon dioxide
I need help asapp
pls no links
correct answer gets brainest!✨
Answers
Answer:
i think its a
Explanation:
tell me if im wrong
Need help ASAP! Will mark brainliest;) No links please, will report
Which represents a misuse of antibiotics which could lead to antibiotic resistant?
A. Finishing the antibiotic prescription even if you are feeling better days before the prescription ends.
B. Physicians prescribing antibiotics to treat influenza (virus)
C. Taking antibiotics only when a bacterial infection is present
D. Physicians prescribing antibiotics to treat strep throat (bacteria)
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Answer:
Bacteria and fungi are germs found inside and outside of our bodies. ... Antibiotics are critical tools for preventing and treating infections caused by specific bacteria in people, animals, ... How can taking antibiotics contribute to antibiotic resistance? ... Never pressure your doctor to prescribe an antibiotic.
People also ask
Explanation:
giving brainliest
Which part of the body connects the bones together and prevents them from rubbing against each other?
Blood
Cartilage
Muscle
Spinal cord
Answers
Answer:
b! (cartaladge)
Explanation:
Answer: Cartilage
Explanation: It’s a soft pad in between your joints that prevents them from rubbing together. Usually it is warn out in your years of life.
A breed of mice have fur colors that are white, brown, and speckled brown and white. What type of inheritance does fur color follow? What are the alleles for the speckled brown and white mice?
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Answer:
The type of inheritance that the fur color follows is codominance. The alleles of the speckled brown and white mice are WB, where both alleles are expressed.
Each student had three pots. All of the pots contained the same type and amount of soil. They
planted pea seeds in each pot.
The students set up their investigations as shown in the table below.
Volume of Water Temperature of Amount of Sunlight
Added to Pots the Environment Pots Received
Michael
The same for each pot Different for each pot The same for each por
Carmen
The same for each por The same for each por Different for each pot
Which student had the best setup to find out how the amount of sunlight affects the growth of
pea plants?
1. Michael
2. Carmen
10. Which animal develops inside its mother before it is born alive?
A. Butterfly
B. Cat
C. Duck
D. Frog
Can anyone help me with this one
Answers
10. A Cat because it's a mammal
The most common predator of the Northern Pike fish is humans, who enjoy the sport of catching this fast swimmer along with consuming their catch. These fish seek areas of dense vegetation or shallow water that is covered and stays cool. A certain lake with a large pike population becomes isolated due to development that eliminates the road leading to the lake. After several years what explains the population changes seen in the graph?
Answers
Answer:
C
Explanation:
Help me with this question please !!!
Answers
Answer:
C
Explanation:
Which of the following mixtures forms a solution?
A. melting ice
B.
sand and water
C. boiling water
D. alcohol in water
Answers
Answer:
D. alcohol in water
Explanation:
All the other answers do not form a solution. Melting ice, as well as boiling water, is still pure water. Sand and water are two different substances, however, sand does not dissolve in water to create a homogeonous solution, leaving alcohol and water, which DO combine into a homogeonous solution.
22. Write a couple of sentences explaining the ecological importance of animals that belong in the
class? Malacostraca
Please help me
Answers
All species provide some sort of function to an ecosystem. In an ecosystem they can act as producers, decomposers, and help to cycle water. throughout the ecosystem, it can control erosion and pests and fix atmospheric gases.
2. Why is it important to have diversity within a population?
a. Better chances of survival in a changing environment
b. Mutations
c. To reach carrying capacity
d. To encourage evolution
Answers
Answer: I believe the correct answer is A
Explanation:
what is the answer to this
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Answer:
to allow implantation of the embryo
the first box is correct
HELP I WILL GIVE THE CROWN
Answers
Answer: chicken and turkey mark me brainliest
Explanation:
____________________ is a series of chemical reactions that convert light energy, water, and carbon dioxide into glucose and oxygen. Photoperiodism Cellular respiration Photosynthesis Pollination
Answers
Answer:
Photosynthesis
Explanation:
7. An extremely rare X-linked recessive genetic disorder known as Norrie disease affects the eyes
and can lead to blindness and in some cases hearing loss. There are only 400 known cases of
Norrie disease worldwide. Explain why it is virtually impossible for a baby girl to be born with
Norrie disease.
Answers
Answer: Girls need to inherit two affected chromosomes to develop the disease, and it may also happen that the affected chromosome is inactivated in the eye (if it has only one)
Explanation:
Norrie's disease is an inherited eye disorder affecting males, which is characterized by abnormal or immature development of the retina (light-sensitive nerve tissue lining the back of the eye) and possible deterioration of the iris (colored part of the eye) and eyeballs. X-linked recessive inheritance is one of the ways in which a genetic trait or condition is passed from parent to child when there are mutations in a gene on the X chromosome from either the father or the mother. Females possess two X chromosomes, while males possess one X and one Y chromosome. In males, the presence of a mutation on the X chromosome causes the disease, since it is the only X they possess. In females, both X chromosomes need to be affected if it is a recessive condition.
So, the disease is inherited in an X-linked recessive manner, which means that almost all affected individuals are male. However, the sons of affected males will not have the mutation since they only inherit the Y chromosome, while all their daughters will be genetic carriers of the mutation because they inherit the affected X chromosome, although without clinical symptoms but being carriers. On the other hand, the mother will pass one of her two X chromosomes (which may or may not be affected) randomly to both her male and female offspring (if they are male, they will be affected and if they are female they will be carriers unless they also inherit an X chromosome from their father). So the only way for females to develop the disease is for their two copies of the gene to be mutated if both parents have the mutation.
But female carriers could be affected by inactivation of their X chromosome with the correct sequence. X chromosome inactivation is a random process that happens separately in individual cells during embryonic development. That is, one cell may inactivate the paternal X chromosome, while others may inactivate the maternal X chromosome. This is because a dosage compensation is necessary, since the Y chromosome in males is not homologous to the X, it does not have the same genes, so if females would express both X chromosomes, they would have twice as many genes as a male. All the descendant cells of each of these original cells will maintain the same pattern of X chromosome inactivation.
In females, one X chromosome is inactivated in each tissue in an arbitrary manner. Then, in addition to having to inherit two affected chromosomes, it may also happen that the affected chromosome is inactivated in the eye (if it has only one).
Please answer correctly and quickly
Answers
Answer:
C.
Explanation:
What are some short and long term positive benefits of the printing press
Answers
short-term and long-term positive contribution of the printing press was and is the ability to disseminate knowledge quickly. Through the printing press, more people could have access to new ideas, and those ideas radically changed the landscape of the Holy Roman Empire.
How would you expect the number of births to compare to the number of deaths in a population that was changing?
Answers
All populations change in size with time
- if births exceed deaths, the population grows
- if deaths exceed births, the population shrinks
- only when births equal deaths does the population stay the same
Other Population Growth Factors
Populations can also change size if organisms move in (immigration) or leave (emigration)
Putting It All Together
We can write a simple equation to show population growth as:
Change in Population Size = (Births + Immigration) - (Deaths + Emigration)
Expressing Population Changes as a Percentage
Suppose we had a population of 100,000 individuals. Suppose in one year there were 1000 births, and 500 deaths.
What percentage of the population were births?
1000/100,000 = 0.01, or in percentage terms, this is 1% of the population.
What percentage of the population were deaths?
500/100,000 = 0.005, or in percentage terms, this is 0.5% of the population.
Assume immigration equals emigration. If so, then they cancel out of our population equation. We'll come back to
this assumption later.
Now, subtract deaths from births but express as a percentage:
1000-500/100,000 = 500/100,000 = 0.005, or 0.5% net growth
Thus, this population would be growing by 0.5% this first year. That means that after one year, there will be 500 more
individuals than the previous year. So, after one year, the population would be 100,500 individuals.
The Net Reproductive Rate
The net reproductive rate (r) is the percentage growth after accounting for births and deaths. In the example above, the population reproductive rate is 0.5%/yr.
Net reproductive rate (r) is calculated as: r = (births-deaths)/population size or to get in percentage terms, just multiply by 100.
Suppose we came back many years later, the net reproductive rate was still the same, but now the population had grown to 1,000,000. How many new individuals would be added each year now? Simply multiply the population by the reproductive rate:
1,000,000 x 0.05 (which is 0.5%) = 50,000
This means that now 50,000 new individuals are added in one year!! The net reproductive rate is the same as before, but because
the population is so much bigger, many more individuals are added.
Exponential Growth
If a population grows by a constant percentage per year, this eventually adds up to what we call exponential growth. In other words, the larger the population grows, the faster it grows!! A curve of exponential growth is an upward sweeping growth curve.