What is the role of Dna in transcription ?

Lysosomes are believed to have originated from the engulfment of bacteria specialized for digestion. Therefore the correct option is option is B.

In eukaryotic cells, there are membrane-bound organelles called lysosomes that house enzymes designed specifically for digesting and waste disposal.

According to the endosymbiosis hypothesis, lysosomes developed as a result of ancient eukaryotic cells engulfing bacteria. The bacteria were kept after that and finally turned into organelles with specific functions for digestion and waste disposal.

Although the plasma membrane is known to have invaded around the DNA to form the nuclear membrane, the precise method is still under debate and research in science. Therefore the correct option is option is B.

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Answer:

b or d

Explanation:

Answer:

Channel protein.

Explanation:

Channel protein have gate that opens and close which allow the passage of polar substance or ions to move to permeable membrane of the cell by diffusion. They are water filled and allow the movementof charged molecules inside and outside the cell membrane i.e polar molecules move through non polar bilayer of the cell membrane.

True. The medulla oblongata contains a respiratory center that plays a crucial role in controlling the rate and depth of breathing.

The medulla oblongata, located at the base of the brainstem, is responsible for regulating various vital functions, including breathing. Within the medulla oblongata, there is a specific region known as the respiratory center, which is involved in controlling the rate and depth of breathing.

The respiratory center consists of a network of neurons that receive sensory input from chemoreceptors, which detect changes in blood oxygen and carbon dioxide levels, as well as other respiratory-related receptors. Based on these inputs, the respiratory center adjusts the activity of the respiratory muscles, such as the diaphragm and intercostal muscles, to regulate the breathing pattern.

The respiratory center in the medulla oblongata plays a crucial role in maintaining the appropriate levels of oxygen and carbon dioxide in the body. It responds to changes in blood gas concentrations to initiate the necessary adjustments in breathing rate and depth, ensuring adequate gas exchange in the lungs and supporting overall respiratory function.

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Answer:

Hi Tadashi Here!

Explanation:

Skin has three layers: The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone. The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands. The deeper subcutaneous tissue (hypodermis) is made of fat and connective tissue.

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A place along a stream where water drops straight down is referred to as a: B. Waterfall

A waterfall is a distinct feature in a mountain stream where water cascades over a vertical or nearly vertical drop in the streambed. It occurs when the stream encounters a sudden change in elevation, such as a steep cliff or rock ledge. The force of gravity causes the water to plunge downward, creating a dramatic and often picturesque display of falling water. Waterfalls are typically characterized by their energy and the sound they produce as the water rushes over the edge and crashes into the pool or stream below.

Therefore, the correct option is B.

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Answer: Very True!!!

Explanation:

Answer: Its True.

Have a great day/night!

Answer:

A photosynthesis pigment ( accessory pigment ; chloroplast pigment ; antenna pigment ) is a pigment that is present in chloroplasts or photosynthetic bacteria and captures the light energy neccessary for photosynthesis.

Explanation:

hope it is helpful to you ☆

Elements flows within ecosystem in various ways. It is important for matter to travel through cycle as there is a fixed amount of matter in the universe, so needed to be recycled.

Matter cycling is movement of matter from one form to another or from one place to another on the Earth, inside its ecosystems.

Matter is constantly cycling from place to place, and this can have both positive or negative effects. Matter also cycles naturally, or can be due to human activity.

As there are only finite number of nutrients on the Earth, so, it is necessary for them to be recycled in order to ensure the continued existence of living organisms.

Thus, option b is correct.

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Genotype: 25% LL, 50% Ll, 25% ll. Phenotype: 25% Long legged, 50% Medium legged, 25% Short legged. Phenotypic ratio⇒ 1:2:1. Yes, there are 50% chances of having only medium-legged chicks. Incomplete dominance is influencing leg length.

Incomplete dominance is an inheritance pattern that occurs when neither of the two involved alleles is entirely dominant over the other one. In this case, the heterozygous organism’s phenotype is different from homozygous phenotypes, and expresses as a mixture of them. This third phenotype is an intermediate between both homozygous parents.

The exposed example is a case of incomplete dominance.

Let is name the alleles as L (coding for long) and l (coding for short).

There are three possibe phenotypes,

Cross: Between two medium-legged animals

Parentals)  Ll   x   Ll

Gametes) L   l     L   l

Punnett square)    L          l

                      L     LL        Ll

                       l     Ll         ll

F1)

Offspring Genotype%

Offspring Phenotype%

Phenotypic ratio⇒ 1:2:1 ⇒ 1/4 Long : 2/4 Medium : 1/4 Short

Medium-legged cabos carry both alleles, L and l, which means that during fertilization there are

These are expected ratios, but it does not mean the progeny will obligatory express this distribution. It depends on how alleles combine during fertilization.

If by chance, when crossing two medium-legged animals, the allele combination only occur between L and l (not L-L and not l-l), then it is possible to have only medium-legged animals.

There are 50% chances of having only medium-legged chabos.

Incomplete dominance is influencing the leg length.

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Answer:

true

Explanation:

Answer:

yes yes it does

Explanation:

Answer:

D. The tubes allow water and nutrients to be transported throughout

the plant.

Explanation:

option D supports the description of the cells. The long , vertical tubes transport water and nutrients and are most likely xylem and phloem vessels.

option A is wrong since, chloroplasts inside the cell helps in absorbing sunlight.

option C is also wrong, because water loss is controlled by the stomata in the leaves and they are not long tubes.

option B could possibly be right but option D is better suited.  

Answer:

The tubes allow water and nutrients to be transported throughout

the plant.

Explanation:

Ape-x

As a genetic counselor I would offer them the following advice about having another child:

I would offer Jack and Diane support and understanding in this difficult decision. I would discuss the risks involved with having a second child with hemophilia, as well as other potential genetic conditions they may face. I would also work with them to explore the various testing options available to them, if they choose to pursue it. Additionally, I would provide them with resources and guidance on how to provide the best medical care and support for their affected child. I would ensure they are aware of the various support systems available to them, both locally and nationally.

What do you mean by the term Hemophilia?

Hemophilia is a rare, inherited genetic disorder in which the blood does not clot properly due to a deficiency in clotting factors, which are proteins found in the blood. This can lead to uncontrolled bleeding, most commonly in the joints, muscles and internal organs.

Furthermore,

Jack and Diane, a hard-working married couple, have a son who hit his head and it won’t stop bleeding.

The above statement describes the problem presented in the reading.

Therefore, the correct option from the given statements is Option B.

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Epigenetic changes may be heritable, but they aren't necessarily permanent.

Epigenetic changes can be passed down from one generation to the next, but they can also be modified by environmental factors and are not necessarily permanent.

Hope that helps! Good luck! :)

The feeding relationships between organisms can be either of the following:

The complex interactions that occur between organisms when they choose, consume, and regulate food is known as a feeding relationship.

Five different types of interactions can be used to describe how organisms interact in feeding relationships:

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Biological sources of change affected the history of life in several ways such as, Evolution, Speciation, Extinction, Adaptation etc

How have biological sources of change affected the history of life?

Evolution: Evolution  is the method by which species alter over time through hereditary variety and normal choice. Advancement has driven to the differences of life on Soil, with unused species advancing and old species going terminated. The method of advancement has been driven by a assortment of variables, counting changes within the environment, competition between species, and hereditary changes.

Speciation: Natural advancement has too driven to the arrangement of modern species through a handle known as speciation. This happens when populaces of a species gotten to be separated from each other and experience hereditary changes that make them unmistakable from one another. Over time, these changes can gather until the two populaces are not able to interbreed, at which point they are considered partitioned species.

Extinction: Organic sources of alter have moreover driven to the termination of numerous species over time. Termination can happen due to a assortment of variables, counting changes within the environment, competition between species, and human exercises such as chasing and living space pulverization.

Adaptation: Natural sources of alter have moreover driven to the adjustment of species to their situations. Through the method of normal choice, species that are better adapted to their environment are more likely to outlive and replicate, passing on their profitable characteristics to their sibling.

By and large, organic sources of alter have been a major driver of the history of life on Soil. They have driven to the advancement of unused species, the termination of others, and the adjustment of species to their situations.

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Answer:

c

it is because during drought there will be less water around us.so the no of animals decrease .

Answer: A genetic disorder in which an individual lacks an enzyme responsible for converting the amino acid phenylalanine into the amino acid tyrosine is called phenylketonuria (PKU) A trait that is determined by a gene that is found only on the X chromosome is said to be

Explanation:

1. This statement is not true because estuaries are actually formed by a combination of factors, including tides, currents, and river flow, not just increased sedimentation due to low wave energy.

2. This statement is true. Plant-dominated ecosystems, such as salt marshes and mangroves, can thrive in areas with both high and low wave energies, depending on the specific conditions and adaptations of the plant species present.

True. On a summer afternoon, it is recommended to keep the draperies closed on all west-facing windows to block out the hot sun. This helps reduce heat gain and keeps your living space cooler, making it more comfortable and energy-efficient.

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(A) The answer to the initial value problem is given by \(\(y = (x^2 + 1)e^x\)\), where \(\(y' - y = 2xe^{2x}\)\) and \(\(y(0) = 1\)\).

(B) The resolution to the initial value problem can be expressed as \(\(y = \frac{2x - (\pi - 1)}{\sin(x)}\)\), where \(\(y' + \cot(x)y = 2\csc(x)\)\) and \(\(y\left(\frac{\pi}{2}\right) = 1\)\).

(A) To solve the initial value problem:

\(\[y' - y = 2xe^{2x}, \quad y(0) = 1\]\)

We can use an integrating factor method. To begin, let us express the equation in its standard form:

\(\[y' - y - 2xe^{2x} = 0\]\)

The integrating factor \(\(I(x)\)\) is given by \(\(I(x) = e^{\int -1 \, dx} = e^{-x}\)\).

To obtain the solution, apply the integrating factor to both sides of the equation and perform the multiplication.

\(\[e^{-x}(y' - y) - 2xe^{2x}e^{-x} = 0\]\)

This simplifies to:

\(\[e^{-x}y' - e^{-x}y - 2x = 0\]\)

Now, observe that the expression on the left-hand side represents the derivative of \(\((e^{-x}y)\)\) with respect to \(\(x\)\).

Using this observation, we can rewrite the equation as:

\(\[\frac{d}{dx}(e^{-x}y) - 2x = 0\]\)

Integrating both sides with respect to \(\(x\)\), we get:

\(\[e^{-x}y - \int 2x \, dx = C\]\)

where \(\(C\)\) is the constant of integration.

Integrating \(\(\int 2x \, dx\)\), we have:

\(\[e^{-x}y - x^2 + C = 0\]\)

To find the constant \(\(C\)\), we use the initial condition \(\(y(0) = 1\)\).

Substituting \(\(x = 0\)\) and \(\(y = 1\)\) into the equation, we get:

\(\[e^{0} \cdot 1 - 0^2 + C = 0\]\)

\(\[1 + C = 0\]\)

\(\[C = -1\]\)

Substituting \(\(C = -1\)\) back into the equation, we have:

\(\[e^{-x}y - x^2 - 1 = 0\]\)

Finally, we can solve for \(\(y\)\) by isolating it:

\(\[e^{-x}y = x^2 + 1\]\)

\(\[y = (x^2 + 1)e^x\]\)

(B) To solve the initial value problem:

\(\[y' + \cot(x)y = 2\csc(x), \quad y\left(\frac{\pi}{2}\right) = 1\]\)

We can use an integrating factor method. To begin, we will rewrite the equation in standard form:

\(\[y' + \cot(x)y - 2\csc(x) = 0\]\)

The integrating factor \(\(I(x)\)\) is given by:

\(\(I(x) = e^{\int \cot(x) \, dx} = e^{\ln(\sin(x))} = \sin(x)\).\)

Apply the integrating factor to both sides of the equation and perform the multiplication.

\(\[\sin(x)(y' + \cot(x)y) - 2\csc(x)\sin(x) = 0\]\)

This simplifies to:

\(\[\sin(x)y' + \cos(x)y - 2 = 0\]\)

Now, observe that the expression on the left-hand side represents the derivative of \(\((\sin(x)y)\)\) with respect to \(\(x\)\). Using this observation, we can rewrite the equation as:

\(\[\frac{d}{dx}(\sin(x)y) - 2 = 0\]\)

Integrating both sides with respect to \(\(x\)\), we get:

\(\[\sin(x)y -\)\(\int 2 \, dx = C\]\)

where \(\(C\)\) is the constant of integration. Integrating \(\(\int 2 \, dx\)\), we have:

\(\[\sin(x)y - 2x + C = 0\]\)

To find the constant \(\(C\)\), we use the initial condition \(\(y\left(\frac{\pi}{2}\right) = 1\).\)

Substituting \(\(x = \frac{\pi}{2}\)\) and \(\(y = 1\)\) into the equation, we get:

\(\[\sin\left(\frac{\pi}{2}\right) \cdot 1 - 2\left(\frac{\pi}{2}\right) + C = 0\]\)

\(\[1 - \pi + C = 0\]\)

\(\[C = \pi - 1\]\)

Substituting \(\(C = \pi - 1\)\) back into the equation, we have:

\(\[\sin(x)y - 2x + (\pi - 1) = 0\]\)

Finally, we can solve for \(\(y\)\) by isolating it:

\(\[\sin(x)y = 2x - (\pi - 1)\]\)

\(\[y = \frac{2x - (\pi - 1)}{\sin(x)}\]\)

\(\(y = \frac{2x - (\pi - 1)}{\sin(x)}\).\)

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The complete question is:

Find The Solution Of The Given Initial Value Problem:

(A) \(\(y' - y = 2xe^{2x}\)\), and \(\(y(0) = 1\)\)

(B) \(\(y' + \cot(x)y = 2\csc(x)\)\), and \(\(y\left(\frac{\pi}{2}\right) = 1\)\)

Answer:

The cell membrane is the outer layer of the cell. The primary function of the cell membrane is to regulate what substances enter and leave the cell. The cell membrane is selectively permeable, or "semi-permeable", meaning that the membrane only allows certain substances to enter or leave the cel

Answer:

b

Explanation:

because the membrane of a cell is responsible for what enters n leave the cells.

it can't be "D" because osmosis is the process by which water molecules enter a permiable or semi permiable membrane of an object from an area of high concentration to an area of low concentration.

fermentation is the process by which chemical changes occur in an organic matter do the answer is definitely not A

metabolism is the chemical processes that occur in an organism to maintain its life so the answer is not c

Answer:

physical contaminant

chemical contaminant

Answer:

columner and cuboidal epithelium

Sea turtles are able to consume cnidarians like the Portuguese Man O'War because they have adapted to be immune to the effects of the nematocysts.

Sea turtles are often negatively impacted by pollution, which can lead to their death or serious injury. Pollution in the form of plastic waste, oil spills, and chemical contamination can all have harmful effects on sea turtles. For example, turtles may mistake plastic debris for food, leading to ingestion and potential intestinal blockages. Additionally, oil spills can coat the turtles' skin and feathers, interfering with their ability to regulate their body temperature and leading to hypothermia.

Chemical contamination can also accumulate in the turtles' tissues, leading to long-term health effects such as weakened immune systems and reproductive issues. These pollutants not only harm individual turtles but can also have devastating effects on entire populations and ecosystems.

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According to the question, approximately 2192.5 joules of energy are required to freeze 5 grams of water.

The formula for determining the energy is as follows:

where Q is the heat energy required, m is the mass of the water which is 5g, C is the specific heat capacity of water which is 4.18 J/g/°C and ΔT is the change in temperature.    

Now,  Q = 5 × 4.18 × 25

              = 522.5 J.

Now, we require to determine how much heat energy is required to freeze the water. This can be calculated using the formula:

Q = m × Hf

where Q is the heat energy required, m is the mass of the water, and Hf is the heat of the fusion of water.

Q = 5 g * 334 J/g

Q2 = 1670 J

Now, to find the total amount of energy which is required to freeze 5 grams of water:

522.5 J + 1670 J = 2192.5 J.

Therefore, approximately 2193.5 joules of energy are required to freeze 5 grams of water.

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Answer:

A

Explanation:

So immediately you can take out dead and nonliving.  I think critically makes sense because bees pollinate and make plants, so A.

The species, Balaenoptera musculus, is used by scientists but is more commonly referred to as "blue whale" by the general public.

Plural taxon Biological categorization, or taxonomy, is the study of taxa, or any unit utilized in it. From kingdoms to subspecies, taxa are ordered in a hierarchy; typically, a given taxon includes numerous taxa of lower grade.

Trees do not fall into a taxonomic category; instead, they are a collection of different plant species that also have developed primarily a trunk or branches to tower over other plants and compete with them for sunlight. Angiosperms, or hardwoods, make up the bulk of tree species; gymnosperms, or softwoods, make up the majority of the remaining species.

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