Answer:
The correct answer is - Friction occurs irrespective of the state of the matter.
Explanation:
Friction is the force that takes place when there are two different surfaces slide or moves across one another and causes a resistance between surfaces. The friction always takes place opposite direction to the other surface direction of moving.
Pushing a book on a table, pulling a heavy cart on road all are examples of friction. The friction that occurs in liquids and gases is called fluid friction. Thus, the friction takes place irrespective of the state of the matter.
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The earliest classification system was developed by Aristotle in the 4th century B.C. This system classified all living things as either plants or animals. The two-kingdom system remained in place until 1866, when the Protist kingdom was created. What new information MOST LIKELY led scientists to revise the existing classification system? Group of answer choices the hand lens showed scientists that plants were made up of cells the microscope enabled scientists to discover single-celled organisms the telescope enabled scientists to see objects they could not view before the microscope showed that cells of plants and animals have different structures
Answer:
the magnifying glass showed scientists that plants were made up of cells
✅ the microscope enabled scientists to discover single-celled organisms
the microscope showed that cells of plants and animals have different structures
the telescope enabled scientists to see objects they could not view before
Hey, can someone please help, what's a good hook for a Biology reflection essay?
Answer: quote from a famous biology scientist
Explanation:
a quote from Rachel Carson which I think is beautiful, "The more clearly we can focus our attention on the wonders and realities of the universe about us, the less taste we shall have for destruction."
Explain the water cycle in one paragraph.
Answer:
The water Cycle
Explanation:
The water cycle or hydrologic is a continuous cycle where water evaporates, travels into the air and becomes part of a cloud, falls down to earth as precipitation, and then evaporates again. This repeats again and again in a never-ending cycle. Water keeps moving and changing from a solid to a liquid to a gas, over and over again.
Precipitation creates runoff that travels over the ground surface and helps to fill lakes and rivers. It also percolates or moves downward through openings in the soil to replenish aquifers under the ground. Some places receive more precipitation than others do. These areas are usually close to oceans or large bodies of water that allow more water to evaporate and form clouds. Other areas receive less precipitation. Often these areas are far from water or near mountains. As clouds move up and over mountains, the water vapor condenses to form precipitation and freezes. Snow falls on the peaks.
people with red hair usually have very light skin. What might be a genetic explanation for this observation?
Answer:
People with red hair usually have very light skin. What might be a genetic explanation for this observation? most color pigmentation goes towards hair and not much is left for skin.
Explanation:
People with red hair usually have very light skin is that most color pigmentation goes towards hair and not much is left for skin.
Why do redheads have pink skin?Pheomelanin ranges from red to pink. Redheads have much more pheomelanin than eumelanin in their bodies
Thus, most color pigmentation goes towards hair and not much is left for skin.
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3. Photosynthesis observes the law of conservation of mass and energy because
a. it contains both matter and energy
b. photosynthesis helps conserve nature
c. people try to conserve both plants and animals.
d. it has the same amount of matter and energy at the beginning and the end of the reactions.
Answer:
D
Explanation:
I think it is D. Please give me brainliest
An investigation was carried out over a five-year period to measure the effect of color on the survival of trout in a stream. The stream contained many brightly colored stones and food was plentiful. At the start of the investigation (year 0), 100 bright-colored trout and 100 drab-colored trout were placed into a section of the stream that had been blocked with netting. Investigators monitored the trout populations for five years and recorded the water condition each time a count was done. The data collected are shown in the table below.
Year Bright colored trought Drab colored trought condition of water
0 100 100 clear
1 64 36 clear
2 86 25 clear
3 25 77 cloudy
4 14 86 cloudy
5 90 9 clear
How does this demonstrate that natural selection depends on the environment? This will be graded based on your overall claim and supporting statements, use of direct evidence from the data table, and your reasoning (CER).
Explanation:
In the given question, the data has been collected for the population of two variations of colour in trout against their environment.
Natural selection refers to a mechanism of evolution by which species evolve as a consequence of their environment.
From the data, we can predict that the brightly coloured trout have better chances of survival in the clear water as the number of individuals of bright-coloured trout is found to be high in clear water.
The number of darkly coloured trout is found to be high in cloudy water in the data which shows that the chances of survival of these trout are better in the cloudy water.
The trait which increases the reproductive fitness of the organism will pass on to their generations that is will be inherited.
This shows how the population of trouts have adapted to survive in a different environment or how nature selects the different variations of the population of trout.
Answer:
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21. What is the best explanation of ATP utilization and production?
A. ATP is being recycled from the process glycolysis, undergo oxidation process and later it is being remade during
Krebs cycle
B. ATP is used to reduced carbon molecule to produce oxaloacetate and used for the bulk reproduction of ATP
during electron transport chain
C. ATP is used during energy investment phase to harvest the energy stored in the molecule 2,3 – carbon molecule
during the energy harvesting phase
D. ATP is adenosine triphosphate that has 3 phosphate groups attached and it is being reduced into Adenosine
diphosphate after losing one phosphate group in its molecule
22. The best description on the role of oxygen during respiration is ________.
A. Oxygen is used to phosphorylate ADP to ATP
B. Oxygen is used to oxidize carbon dioxide to form glucose
C. Oxygen is utilized to add carbon in carbon dioxide as a by-product of cellular respiration
D. Oxygen is used to oxidize glucose molecule to form ATP—the energy needed by the body
23. Where are the 36 ATP come from during cellular respiration?
A. 2 from glycolysis, 2 from oxidation of pyruvate and 32 from Krebs cycle
B. 2 from glycolysis, 2 from Krebs cycle and 32 from electron transport chain
C. 2 from glycolysis, 2 from oxidation of pyruvate and 32 from electron transport chain
D. 2 from oxidation of pyruvate, 2 from Krebs cycle and 32 from electron transport cha
What do you mean by environmental degardation?
Answer:
if you mean environmental degradation it is where the environment deteriorates(gets worse).
Explanation:
this happens through lack of air,water and soil, destruction of ecosystems and habitat destruction
Answer:
hope it helped
Explanation:
Environmental degradation is a process through which the natural environment is compromised in some way, reducing biological diversity and the general health of the environment. This process can be entirely natural in origin, or it can be accelerated or caused by human activities.
The enzymes that catalyze chemical reactions in living things are one type of
O A. lipid
B. protein
C. carbohydrate
D. nucleotide
plz can anyone help me
Answer:
its protein
Explanation:
What happens during cytokinesis with plant cells?
Answer: the conjoined two daughter cells seperate.
Explanation:
Answer: Cytokinesis is the final stage of cell division in eukaryotes as well as prokaryotes. During cytokinesis, the cytoplasm splits in two and the cell divides. ... In plant cells, a cell plate forms along the equator of the parent cell. Then, a new plasma membrane and cell wall form along each side of the cell plate
Explanation:
Plant pollen is often carried by wind or insects from one plant to another. This process deposits the pollen containing the male sex cell on the part of the plant that contains the female sex cell.
What does this show about these plants?
They are sexual.
They are unicellular.
They are prokaryotic.
They are nonvascular.
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Describe the energy changes occurring in the process in which ice melts to water
As ice melts into water, kinetic energy is being added to the particles. This causes them to be 'excited' and they break the bonds that hold them together as a solid, resulting in a change of state: solid -> liquid.
how does the leftover matter and energy in dead organisms get recycled back to the soil
Answer:
Decomposers (Figure below) get nutrients and energy by breaking down dead organisms and animal wastes. Through this process, decomposers release nutrients, such as carbon and nitrogen, back into the environment. ... Many of these nutrients are recycled back into the soil, so they can be taken up by the roots of plants.
Explanation:
Hope this helps :)
In order for a fish to see a bug just above the surface of the water, light travels from the insect through the air and crosses into the water until it reaches the fishes' eye. Which statement is true regarding the light wave as it travels through the different media?
Group of answer choices
a.The light wave will bend as it moves from the air to the water because it changes speed and gets refracted.
b. The light wave will bend as it moves from the air to the water because it changes speed and gets reflected.
c. The light wave will split into different colors as it moves from the air to the water because it gets refracted.
d. The light wave will bounce back into the air when it moves into the water because it gets refracted from the bug to the fish’s eye.
Question:
In order for a fish to see a bug just above the surface of the water, light travels from the insect through the air and crosses into the water until it reaches the fishes' eye. Which statement is true regarding the light wave as it travels through the different media?
Answer:
D. The light wave will bounce back into the air when it moves into the water because it gets refracted from the bug to the fish's eye.
Just A Few Notes From The Internet:
The light waves will travel straight from the bug to the fishes' eye because that is the most direct path. The light waves will travel straight from the bug to the fishes' eye because there is no change in medium. The light waves will bounce off the surface of the water and the fish will see it.
Answered by: ItsAudrey
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What is a stationary location where volcanoes form when the convection in the asthenosphere creates a column of material that rises until it reaches the crust called?
Answer:
The continental plate is the location where volcanoes form when the convection in the asthenosphere creates a column of material that rises until it reaches the crust.
Explanation:
Volcanoes form at the edges of Earth’s tectonic plates. When the continental plate moves over the oceanic plate, it causes the oceanic plate to descend into the mantle where some of it melts, and the molten material moves into the mantle above the plate and causes the mantle to melt.
This liquid rock, called magma, rises to the surface because it is less dense then the surrounding rock, a volcano forms when the magma reaches the surface of the Earth at the continental plate.
Choose two possible alleles for hair color.
A green
B brown
C blond
D none of the above
Answer:
b. brown
Explanation:
A person with a brown allele will have brown hair
Predict what will happen to interest rates and output if a stock market crash causes autonomous consumer expenditure to fall
Answer:
Lower interest rates.
Explanation:
if a stock market crashes, the interest rates will also be lowered because they have a direct relationship between stock market and interest rates. When the stock market performs very good, the interest rates will be higher while on the other hand, if a stock market crashes, the interest rates will be lower so we can conclude that the interest rates will be lower if stock market crashes.
What is the relationship between the emissions from burning fossil fuels and atmospheric carbon
dioxide
Answer:
carbon dioxide (CO2) emissions from fossil fuel combustion (burning) for energy were equal to about 75% of total U.S. anthropogenic GHG emissions (based on 100-year global warming potential) and about 93% of total U.S. anthropogenic CO2 emissions.
in humans, dimples are dominant to no dimples. cross a woman with no dimples with a man who is heterozygous for dimples. determine the phenotypic and genotypic ratio of their offspring. show a punnett square to support your answer
Genotype: 50% Aa and 50% aa
Phenotype: 50% Dimples and 50% no dimples
Explanation: Using a punnet square, we can figure out that the mother is recessive and the father is heterozygous. Putting the mother at the top of the square and the father on the side, you end up with the results above by crossing each square with the corresponding letters. It's okay if the letters end up backwards. Just be sure to face them the right direction, capitals being first once you finish.
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Need answer quick please
I believe the answer is parasitism. The cuckoo bird uses sneaky tactics to trick the warbler into doing the parenting for them
Answer:
I believe the answer is parasitism
Explanation:
it makes the most sense within this scenario. The cuckoo bird invades another oragnism's way of life, harms the other eggs in the process, and lives off of the shelter and nurtrients that would have been the baby warblers given by the warbler mom.
mutualism: symbiosis that is beneficial to both organisms involved
commensalism:an association between two organisms in which one benefits and the other derives neither benefit nor harm.
parasitism:the practice of living as a parasite in or on another organism.
How is cancer related to the cell cycle?
Answer:
a mass of cancerous cells grows, it can develop into a tumor.
Explanation:
10 POINTS AND BRAINLESS POINTS
Answer:
1st third and fourth
Explanation:
Answer:
456
Explanation:
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Question 9
How do animals get nitrogen that is stored in the soil?
O A) Animals do not take in the nitrogen stored in the soil.
O B) Bacteria change the nitrogen into a gas that the animals breathe.
OC) Plants ab orb the nitrogen from the soil and animals can eat the plants.
O D) The animals can eat the soil and absorb the nitrogen through their digestive system
Answer: C) Plants absorb the nitrogen from the soil and animals can eat the plants.
Heterotrophs, specifically herbivores and omnivores, are animals that eat plants (autotrophs) to get the nutrients they need. Those that eat the plants get the nitrogen from the plant that has absorbed it from the soil. Omnivores and carnivores eat the herbivores to get nitrogen that way. For more more information, take a look at the nitrogen cycle.
In cats grey color (G) is dominant to white color (g). If a white female has kittens with a heterozygous male, and the mother is showing that she will be having 9 Kittens, how many kittens would you expect to be white? (Round down to the nearest whole number, you cannot have partial kittens)
Answer:
Rounding down to the nearest whole number, 5 Kittens will be white.
Explanation:
Available data:
grey color (G) is dominantwhite color (g) is recessivewhite female, ggheterozygous male, Gg9 KittensCross:
Parental) Gg x gg
Phenotype) Grey White
Gametes) G g g g
Punnet square)
G g
g Gg gg
g Gg gg
F1) Genotypes:
1/2 = 50% will be Gg
1/2 = 50% will be gg
Phenotypes:
1/2 = 50% will be Grey (Gg)
1/2 = 50% will be white (gg)
To calculate the number of kittens that will be white, we need to consider the proportions of cats that will be white in the F1 and that the total number of kittens is 9. So
100% of the progeny ------------------------------- 9 kittens
50% of the progeny----------------------------------X = (50 x 9)/100 = 4.5 kittens ≅ 5 Kittens
A cat can not have 4.5 kittens, so we must round down to the nearest whole number. 4.5 ≅ 5 Kittens
Identify the plant organs seen in the drawing
А
B
C
Answer:
c
Explanation:
its the roots of the tree
what is a cell theory
Answer:
In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells
Answer:
They theory that all living things are made out of cells.
that's cells are the smallest building block of life.
That cells must be created by pre-existing cells.
Lynn Margulis developed the endosymbiont theory to explain the evolution of certain eukaryotic organelles, such as chloroplasts and mitochondria. According to this theory, which of these events occurred to an ancient prokaryotic cell?
Answer: Endosymbiosis theory suggests that eukaryotic cells emerge from prokaryotic cells.
Explanation:
Biologist Lynn Margulis was the first person who studied the endosymbiosis in 1960. According to him the chloroplasts and mitochondria have been originated from ancient bacteria which was free living. These organelles are found in eukaryotic cells. The chloroplasts are found in plant cells and they have a green pigment called as chlorophyll which helps in the process of photosynthesis by absorbing the sunlight energy. The mitochondria produce energy in the form of ATP by the biochemical oxidation of the food.
Explain 3 ways diseases can be transmitted (passed).
Answer:
Air, Direct Contact, Blood.
Explanation:
Answer:
1. water
2. sharing same items
3. being in contact with infected person
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Answer: step one:ask a question,step 2; form a Hypothesis,step 3:test the Hypothesis,step 4: Analyze the Results,step 5;Draw a conclusion,and Step 6;share the results
Explanation:
Step 1;Develop a question or you can solve through experimentation
step 2; Predict a possible of answers to the problem or the question
step 3; Develop and follow the procedure the outcome should be measurable
step 4;modify the procedure that is if it is needed to confirm the result
Step 5; Make the recommendations for a further study and also a possible improvement
Step 6; Be come ready to communicate what you found
What is the purpose of the
cell plate during the last
phase of the cell cycle?
A. hold the cells together
B. replace the cell membrane
C. push the cells apart
Answer:
the answer to this question is push cells apart