Which of the following best describes how a liver cell and skin cell have the exact same DNA
sequence and yet look different and perform different functions? (1 point)
O The cells mutate during transcription.
O The cells discard the DNA that is not in use.
O The tRNA uses a different sequence in each cell during transcription.
O The proteins are expressed differently in each cell.

Answer:

Energy from the sun is absorbed by the chloroplasts in the leaves of a plant. The light energy is converted into chemical energy as the chloroplasts use the light to power the production of glucose from carbon dioxide and water. The glucose is used by the plant to produce energy and build new cells, and any excess glucose is stored as starch. Oxygen is also released as a by-product of photosynthesis.

Answer:

Explanation:

certain organisms convert solar energy (sunlight) into chemical energy, which is then used to build carbohydrate molecules. The energy used to hold these molecules together is released when an organism breaks down food. Cells then use this energy to perform work, such as cellular respiration.

If xylem tissue is plugged by gum, then molecules of water that are transported through the xylem are prevented from traveling up the stem.

Xylem may be defined as a type of vascular tissue in plants that operates the transport of water and liquefied nutrients from the root to the stem and across the whole plant or tree.

The xylem possesses specialized water-conducting tissues constructed primarily of thin, extended, sunken cells.

If the gum occludes the xylem tissue, water molecules are prevented from traveling up the stem.

Therefore, it is well described above.

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Answer:

the glomerulus, is that part.

Answer: glomerulus

Explanation: blood fluids leave the glomerulus and enter the bowmans capsule

Answer:

The correct answer is - Development of simple bacteria→RNA formation→DNA formation

Explanation:

According to the hypothesis and researchers, it seems to confirm that RNA was the first genetic or hereditary material that was present in the simple form of bacteria developed first.

RNA is the molecule responsible for the origin of life on the earth and evolved all the required processes and methods for carrying and expressing the genetic information of an organism before DNA. DNA is evolved from RNA molecules of simple bacteria.

Answer:

Weight gain and obesity, risk of cardiovascular disease, if the fats are sugar there will be tooth decay and diabetes.

Answer:

I think the anwser is a but i might be wrong

It is believed that hyper sanitation may lead to allergy epidemic : True.

There is a hypothesis known as the hygiene hypothesis, which suggests that increased cleanliness and reduced exposure to certain microbes and parasites in childhood can cause overactive immune system and increased risk of developing allergies and autoimmune diseases later in life.

While the exact mechanisms are still being studied, some researchers believe that excessive use of antibiotics and disinfectants and lack of exposure to microbes and parasites, may be contributing factors to the rise in allergies and autoimmune diseases in the recent decades. It is important to note that this is still a developing area of research and more studies are needed to fully understand relationship between hygiene and allergies.

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Answer:

Pretty sure its b.

Explanation:

Answer:

Darwin's work in particular focused on animals of the Galapagos islands, especially finches. Over time, the idea that species changed from natural selection pressures through “descent with modification” gave rise to the idea of evolution.

Darwin was also interested in Phytophthora, the widely dispersed plant pathogen, and the attempts to grow Phytophthora-resistant plants, and was fascinated by the many algae he encountered on his voyage1.

Explanation:

and this helps him to develop the theory of natural selection

The mixed number for the given picture is 1 1/4, the correct option is A.

A mixed number is one that manages to combine a whole number and an appropriate fraction.

To transform mixed numbers to improper fractions, follow these three steps: Multiply the numerator by the whole number.

In the given picture, there is one box completely filled and one forth portion in second block is filled, so it is representing mixed number i.e., 1 1/4.

Thus, the correct option is A.

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company name: (yourname) energy

location: whatever city your home is

reasons: we will help you in any and every way we can

we are a very trustworthy business

we guarantee a refund if you're not satisfied

Answer:

upisde down

Explanation:

The process of bending light to produce a focused image on the retina is called “refraction”. Ideally, the light is “refracted,” or redirected, in such a manner that the rays are focused into a precise image on the retina.

Answer - Alternative energy is energy that does not come from fossil fuels, produces no greenhouse gases like carbon dioxide (CO2).

Reason

biomass, geothermal resources, sunlight, water, and wind, are natural renewable resources that can be converted into clean, usable energy: Bioenergy.

The two systems that are working together in this scenario are the circulatory system and the muscular system. The circulatory system, which includes the heart, blood vessels, and blood, is responsible for transporting oxygen and nutrients throughout the body. In the case of the horned lizard, the circulatory system is involved in supplying blood to the area around its eyes.

The muscular system is responsible for the movement of the body and the maintenance of posture. In the case of the horned lizard, the muscular system controls the major veins surrounding the eye and is responsible for contracting the muscles to increase blood flow to the head. The muscles in the eyelid and eye also contract to shoot blood when predators approach.

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Jane Austen wrote an essay titled "On creating a pleasant Marriage."

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Due to the fact that a pH of 7.9 is still considered slightly alkaline, the term acidification can be misleading. However, as the graphs in these three locations show, as CO2 levels rise, the pH decreases, moving toward the acidic end of the pH scale.

Ocean acidification occurs in different parts of the world. I disagree with the statement that "ocean acidification" is inaccurate because it occurred as a result of increased carbondioxide gas release in the atmosphere, which is dissolved in the ocean or sea water.

When carbondioxide gas is dissolved in water, it produces carbonic acid, which changes the pH of the ocean water, which tends to be acidic, so ocean acidification occurs in various parts of the world, in my opinion.

Many marine species are expected to suffer as a result of ocean acidification. This could have an impact on marine food chains and human food supply. Acidification may also reduce storm protection from reefs, tourism opportunities, and other intangible benefits.

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Answer:

symbiosis.

Explanation:

The term that you are referring to is symbiosis. (a symbiotic relationship)

Symbiosis is a proximate and often long-term interaction between two or more different biological species.

Aquaculture as a form of farming is always characterised by the farmer's efforts to increase the rate and calibre of aquaculture species' growth.

Contrasted with commercial fishing, which includes capturing wild fish, aquaculture involves raising populations of freshwater, brackish water, and saltwater species in Aquaculture or semi-natural environments.

Systems of culture and rearing in which human intervention is focused on stock reproduction in addition to capture are referred to as extensive aquaculture. These approaches, as opposed to fishing, allow for the selective expansion of production of the species that are most in demand by humans.

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Answer:  The correct answer is The farmer tries to improve growth rate and quality of aquaculture species.

Explanation:  This answer has been confirmed correct.

Aquaculture involves the farmer taking specific actions to improve the growth rate and quality of the species that they raise in captivity.

Answer:

Which whale traits evolved much later?

Nostrils shifted back toward top of skull; hind legs reduced, then eliminated; forelimbs become paddle like; strong swimming tail with flukes form.

Answer:

The vacuoles is like the cabinets in the school used to store items. where we release all of our energy. Cytoplasm is like the hallways of the school.

Answer:

cells duplicate so when there is no cell it cant make any

Explanation:

The statement that there must be a preexisting cell in order for a new cell to form is known as cell theory.

The scientific idea that cells make up living organisms, that they are the fundamental structural and organizational unit of all species.

They all originate from previously existing cells is known as cell theory. It was first proposed in the middle of the nineteenth century.

Because cells are the building blocks of all life, cell theory is essential for our understanding of biology.

We can have single-celled organisms like yeasts and bacteria. All living things grow and develop on the basis of cell division, or the division of a cell from one to two to four.

A vital process for life is mitosis. A cell divides into two identical daughter cells after duplicating all of its components, including its chromosomes.

Thus, the statement "cell arises from pre-existing cells" comes from cell theory.

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Answer:

I think the answer is true.

Explanation:

Saturn is 8.867 × 108 miles away from the Sun. Uranus is 1.787 × 109 miles away from the Sun

Answer: FALSE

Explanation:

Saturn is: 927.62 million miles from the sun (8 astronical units)

Uranus is: 1.83 billion miles from the sun (19.8 astronomical units)

So based on the info above, it should be false :) please let me know if this helps! have a great day<3

Answer:

B

Explanation:

B is the correct answer because the environment effects how the body has to adapt.

A beneficial mutation is not always considered beneficial because: (B) It depends on the organism's environment.

While a beneficial mutation can provide advantages to an organism in certain environments or circumstances, its benefits may not be universal. The suitability of a mutation depends on the specific environmental conditions in which the organism finds itself. Organisms inhabit diverse environments with varying challenges and selective pressures.

A mutation is a change in the DNA sequence of an organism's genetic material. Mutations can occur naturally due to errors during DNA replication or as a result of external factors such as exposure to radiation, chemicals, or certain environmental conditions.

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Answer:

d. stretch stimulates vasoconstriction to reduce the flow.

Explanation:

Afferent arterioles are a network of blood vessels that supplies the kidneys with blood. They branch from the renal artery and are important in blood regulation.

Myogenic mechanism is used to regulate blood flow to the kidney.

When blood flow increases to the afferent aterioles the smooth muscles its wall stretches and contracts to resist the pressure. This reduces blood pressure.

When the pressure reduces the smooth muscles relax to allow more flow of blood.

The genotype of the F1 offspring is YyTt, and the phenotype is yellow and tall. The probability of each phenotype in the F1 offspring is as follows yellow and tall is 1/2 or 50%, green and short is 1/2 or 50%.

Genotype refers to the genetic makeup or combination of alleles present in an organism, while phenotype refers to the observable traits or characteristics expressed by an organism. Genotype represents the genes an organism carries, while phenotype represents the physical or observable features resulting from the interaction between genotype and the environment.

When a heterozygous ail yellow plant (genotype Yy) is crossed with a homozygous short green plant (genotype tt), the F1 offspring will have the genotype YyTt and the phenotype of yellow and tall. The probability of this phenotype occurring in the F1 generation is 50%. Additionally, there is a 50% probability of the F1 offspring having the phenotype of green and short.

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The answer is that Chad is most likely a developing country. According to the age structure diagram given in the question, the population of Chad is mostly young and has a smaller proportion of elderly people.

This suggests that Chad is most likely a developing country. Developing countries have younger populations with higher fertility rates and lower life expectancies, resulting in a larger proportion of children and young adults in the population.

As a result, the population structure of a developing country is usually characterized by a broad base (large proportion of children and young adults) and a narrow top (small proportion of elderly people).Chad is most likely a developing country due to the shape of its population pyramid or age structure diagram.

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Sunlight energy is utilized by the light-dependent processes to create ATP, NADPH, and oxygen. Chloroplast thylakoid membranes contain light-dependent processes (ATP and ADPH the cell can actually use in Calvin Cycle).

The light reactions supply the Calvin cycle with ATP and NADPH, and it returns to them with ADP, Pi, and NADP+.

The Calvin cycle's carbon fixation stage is supplied with ATP and NADPH by the light reactions, while the light reactions are supplied with water and electrons by the Calvin cycle.

Therefore, it is true that The light dependent reactions supply the Calvin cycle with Co2 and ATP.

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The result that refutes the alternative hypothesis that selective permeability is a consequence of the cell wall is: B. When beetroot cells are placed in a solution containing cellulase, the solution remains clear.

Cell wall is a characteristic specific to the plant cells. These do not exist in the animal cells. Cell wall is made up of dead cells and provide the cell structure support and mechanical strength. The plant cell wall has a composition of cellulose, hemicellulose and pectin.

Semi-permeability is the feature of any membrane where it allows the passage of only few substances through it. In living cells, this characteristics can be found in cell membrane only and not in cell wall.

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