most rna molecules have three phosphate groups at the 5 end, but dna molecules never do. explain this difference.

In eukaryotes, the sequences of a primary transcript included in the mRNA are called Exons, whereas sequences spliced out of the mRNA are called Introns.

What is mRNA?

A form of single-stranded RNA involved in protein synthesis is known as messenger RNA (abbreviated as mRNA). During transcription, mRNA is created from a DNA template. The purpose of mRNA is to transport protein information from DNA in a cell's nucleus to the cytoplasm, or watery interior, of the cell. There, the machinery responsible for making proteins reads the sequence of the mRNA and converts each three-base codon into an amino acid that belongs in a protein chain.

As the transcript's exons are connected and the introns in between them are excised, a mature mRNA is produced. So, the sequences of a primary transcript included in the mRNA are called Exons, whereas sequences spliced out of the mRNA are called Introns.

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The true statement based on the phylogenetic tree is: "Ray-finned fish evolved before sharks."

In the given phylogenetic tree, the branches representing ray-finned fish and sharks originate from a common ancestor.

However, the branch representing ray-finned fish diverges earlier in evolutionary history compared to the branch representing sharks. This indicates that ray-finned fish appeared before sharks in the evolutionary timeline.

Phylogenetic trees illustrate the evolutionary relationships between different species or groups of organisms. The branching patterns in the tree show the common ancestry and divergence of different lineages.

By analyzing the structure of the phylogenetic tree, we can infer the relative timing of evolutionary events and the relationships between different groups of organisms.

In this case, the phylogenetic tree indicates that ray-finned fish evolved before sharks, suggesting that ray-finned fish have a longer evolutionary history and are more ancient than sharks.

It is important to note that this statement does not provide information about the relationship between crocodiles, amphibians, primates, rodents, rabbits, and other groups mentioned in the given options.

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Question

Use the phylogenetic tree to the right to choose the true statement below.

Crocodiles are more closely related to amphibians than to primates.

A. Ray-finned fish evolved before sharks.

B. Rodents and rabbits are most closely related to primates.

C. Amphibians are more closely related to ray-finned fish than to primates.

Answer:c

Explanation:

The reason why socks is an important component because  socks will keep your feet dry that prevent you from slippery and injury from small things while exercise.

Using socks when exercise as some benefit to you, such as:

As to reminder, you should use proper sock or it might damage your foot such as:

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It is a biological process by which living things create offspring that are genetically identical to them. The continuation of many species on Earth is ensured via reproduction.

Reproduction ensures the species' survival and prevents it from going extinct. Due to the genetic recombinations it causes, it contributes to evolution. It contributes to the ecosystem's ability to support more species.

It is generally agreed upon that sexual reproduction is preferable to asexual reproduction. This is due to the fact that in asexual reproduction, a single parent produces an identical offspring by passing on its genetic makeup to the offspring.

As reproduction is not necessary to maintain life, it is not considered to be a living process. An individual organism can survive without reproduction even though reproduction is necessary to preserve an organism's lineage. A trait or quality that all living things share is reproduction.

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Complete question; Which advantage of reproduction does the graph show?Explain.

In the realm of human existence, liberty or freedom stands as a fundamental and cherished ideal, encapsulating the essence of individual autonomy and self-determination.

In the realm of human existence, liberty or freedom stands as a fundamental and cherished ideal, encapsulating the essence of individual autonomy and self-determination. From the dawn of civilization to the present day, the concept of liberty has evolved and shaped societies, sparking debates and revolutions, and leaving an indelible mark on the course of human history. At its core, liberty represents the unrestricted ability of individuals to exercise their rights, make choices, and pursue their own goals and aspirations. It is the foundation upon which democratic societies are built, fostering innovation, diversity, and the flourishing of human potential. However, amidst the ever-evolving landscape of global affairs, questions arise regarding the true nature and limits of freedom, igniting discussions on the balance between individual liberties and the collective good. This essay delves into the multifaceted dimensions of liberty, exploring its significance, its boundaries, and the intricate interplay between personal freedom and societal responsibility.

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Answer:

Bodies of water, clouds, evaporation and condensation all play vital roles in the water cycle, but so do living things. Plants, especially trees, contribute to the water cycle via transpiration, where water evaporates from the surface of their leaves

Explanation: Byee stay safe: Wear your mask, drink water and stan bts

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Both pica and rumination disorder are more common in people who have developmental disabilities or intellectual disabilities than in the general population. What are Pica and Rumination disorder ?Pica is a compulsive eating disorder that involves eating non-food

items such as soil, chalk, and hair. Individuals with developmental disabilities are at greater risk of developing pica. Rumination disorder is a rare condition in which people constantly regurgitate their food and then chew it before swallowing it again. This behavior is not due to a medical condition. Individuals with intellectual disabilities are at a higher risk of developing rumination disorder.

There are two types of are a brief response that summarizes the key points and offers a precise answer to the question asked. On the other hand, are the main a provides a comprehensive are the mainly  includes more detail, and usually has more than one point of view.

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Answer:

F

Explanation:

Answer:True!

Explanation: Silicates are in almost all minerals on earth.

Answer:

option b is correct pls mark brainliest if u r girl

The plasma membrane forms the cell boundary while the cell components include:

The cell is the smallest functional unit of a living organism which can exist alone.

This is because it contains organelles which are membrane-bound and is surrounded by a membrane called plasma membrane.

The plasma membrane monitors the substances that moves in and out of the cell.

This characteristics makes it a semi-permeable membrane.

The cell components include:

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Malaria is a disease caused by a parasite. The parasite is spread to humans through the bites of infected mosquitoes. People who have malaria usually feel very sick with a high fever and shaking chills.

While the disease is uncommon in temperate climates, malaria is still common in tropical and subtropical countries. Each year nearly 290 million people are infected with malaria, and more than 400,000 people die of the disease.

To reduce malaria infections, world health programs distribute preventive drugs and insecticide-treated bed nets to protect people from mosquito bites. The World Health Organization has recommended a malaria vaccine for use in children who live in countries with high numbers of malaria cases.

Protective clothing, bed nets and insecticides can protect you while traveling. You also can take preventive medicine before, during and after a trip to a high-risk area. Many malaria parasites have developed resistance to common drugs used to treat the disease.

Hepatitis C is a bloodborne pathogen poses the greatest transmission risk.

A viral illness called hepatitis C can result in significant liver damage by inflaming the liver. Contaminated blood can spread the hepatitis C virus (HCV).

Hepatitis C treatment up until recently required weekly injections and oral drugs, both of which were difficult for many HCV-infected persons to take due to underlying health issues or unfavorable side effects.

Today, oral medicines used daily for two to six months can usually cure chronic HCV.

Nevertheless, around half of those who have HCV are unaware of their infection, primarily because they don't exhibit any symptoms, which might take years to manifest.

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Answer:

Ancient Organisms evolving into what we have now

Explanation:

The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits. Changes that allow an organism to better adapt to its environment will help it survive and have more offspring.

Answer:

1.) a

2.) b

3.) c

4.) a

5.) b

6.) Are there any other options? none of those options are right because energy is released from ATP when a phosphate group is removed.

Aldosterone secretion is primarily regulated by the presence of angiotensin II in the circulation.

Angiotensin II is a hormone that plays a crucial role in the renin-angiotensin-aldosterone system (RAAS), which helps regulate blood pressure and fluid balance in the body.When blood pressure decreases or when there is a decrease in blood flow to the kidneys, specialized cells in the kidneys called juxtaglomerular cells release an enzyme called renin into the bloodstream. Renin acts on a protein called angiotensinogen, which is produced in the liver, to convert it into angiotensin I. Angiotensin I is then converted to angiotensin II by the action of an enzyme called angiotensin-converting enzyme (ACE), mainly found in the lungs.

Angiotensin II has several effects in the body, including vasoconstriction, which helps raise blood pressure. It also stimulates the release of aldosterone from the adrenal glands, specifically the zona glomerulosa of the adrenal cortex. Aldosterone acts on the kidneys, primarily in the distal tubules and collecting ducts, to increase sodium reabsorption and potassium excretion. This leads to an increase in blood volume and blood pressure.

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Answer:

Pancreas is Insulin is released when blood sugar levels are too high

Thymus Gland is Your immune system fight off an infection

Pineal Gland is you begin to feel sleepy after a long session

Explanation: Hope it helps :)

Prokaryotes showed up on Earth long before any long reptiles and Small plants statement is incorrect about the Geologic Time Scale

Prokaryotic cells are microorganisms include Bacteria and Archaea while other photosynthetic prokaryotes are cyanobacteria which do photosynthesis.

A prokaryotic cell is a single membrane bound cell where all the metabolic reactions occur within the cytoplasm,  free-living or parasites in nature, they lack nuclear membrane.

In prokaryotes the organelles like  Mitochondria, Golgi bodies, chloroplast, and lysosomes are absent, whereas genetic material is present as a single chromosome;

The prokaryotic cell divide  by binary fission where as the sexual mode of reproduction involves conjugation.

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Answer:

Passive transport moves molecules without energy

Explanation: hope this helps plz make brainlist

Explanation:

Most of the amino acid pool is used for the synthesis of protein and other nitrogen-containing compounds such as DNA bases, neurotransmitters, hormones, etc. Under certain metabolic situations, amino acids can also be used as a source of energy by the body.

The values of the no of atoms in each unit cell, the volume of a unit cell, the mass of a unit cell , Atomic mass for the element respectively are 4, 9.2345*10-23 cm³, 1.34x10 gm, 20.

Given,

Lattice is fcc and has a density of 1.45 g/cm³.

Edge length, a=4.52*10 cm

The total number of atoms in fcc lattice,

At corner = 1/8*8 =1

At face = 1/2*6 =3

Total number of particles = 3 + 1 =4

The volume of the unit cell,

Volume of unit cell = a³ =(4.52*10 cm)

                             =9.2345*10-23 cm³

The mass of the unit cell

Mass = Density*Volume

Mass = 1.45g/cm * 9.2345x10^-23

         =1.34x10 gm

The atomic mass of the element

Mass of one atom =1.34x10/4 g

                             =3.35x10 gm

Atomic mass of the element = mass in gm/1amu

                                            = 3.35×10 g /1.66x1024 g

                                            = 20

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Answer:  Hydrochloric acid

Explanation: Hydrochloric acid is not typically formed in the atmosphere as part of acid deposition. Acid deposition, also known as acid rain, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms.

Answer:

Environmental quality refers to the quality of the total environment, including both the natural and the built environment.

Natural Environment- Plants, animals, natural resources, etc.

Built Environment- Man-made structures and facilities.

Let me know if this helps!

Answer:

adhesion, cohesion

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The combination of morphological characteristics that typically makes an animal a good jumper includes powerful leg muscles, long and flexible hindlimbs, specialized joint structures, and adaptations for balance and coordination.

Animals that are adept at jumping possess specific morphological features that enable them to generate and control powerful leaps. One crucial characteristic is the presence of powerful leg muscles, particularly in the hindlimbs, which provide the necessary force for propelling the animal into the air.

Long and flexible hindlimbs contribute to maximizing the distance covered during a jump. Additionally, specialized joint structures, such as strong tendons and elastic ligaments, enhance the efficiency and spring-like action of the legs during takeoff and landing.

Good jumpers also exhibit adaptations for balance and coordination, including a well-developed sense of proprioception and the ability to make precise adjustments mid-air. These features work in tandem to facilitate efficient energy transfer, precise control of movement, and landing stability.

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Answer:

you cant really tell the blanks

Explanation:

So yeah

Answer:

From largest to smallest they are: Universe, galaxy, solar system, star, planet, moon and asteroid.

Answer:

Well if you mean species,  it means the range or distribution of a species is the geographical area or habitat where the species live.

Explanation:

It would help if you could be more specific, But i hope it helps!!

Housing rats in a complex social environment with much stimulation leads to some changes in brain structure, including b) all of the given answers.

Housing rats in a complex social environment with much stimulation can result in various changes in brain structure. These changes include increased cortical mass, increased dendritic branching of cortical neurons, and prolonged neural health, well into senescence. The complex social environment provides opportunities for social interactions, cognitive stimulation, and physical activity, which can lead to enhanced brain development and plasticity. Increased cortical mass suggests structural adaptations in the brain, potentially indicating improved cognitive abilities. The increased dendritic branching of cortical neurons signifies increased synaptic connections and neural complexity, which can enhance information processing and learning. Prolonged neural health into senescence suggests that the enriched environment may have a protective effect against age-related cognitive decline. Overall, a complex social environment with stimulation has a positive impact on brain structure in rats.

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For the repair of coarctation of the aorta, the surgical approach commonly used is thoracotomy, which involves accessing the aorta through an incision in the chest. Patent ductus arteriosus (PDA) is typically repaired using a minimally invasive approach called transcatheter closure or through a small incision in the chest, depending on the specific case.

The surgical approach used for the repair of coarctation of the aorta and patent ductus arteriosus can vary depending on the specific case and the severity of the condition. However, two commonly employed surgical approaches are:

Coarctation of the aorta: The preferred surgical approach for repairing coarctation of the aorta is typically a procedure called coarctation repair or coarctation resection. This involves making an incision in the chest or side of the body, accessing the narrowed part of the aorta, and removing the constricted segment. In some cases, a synthetic graft may be used to bridge the gap and restore normal blood flow.

Patent ductus arteriosus (PDA): The surgical approach for repairing PDA is called patent ductus arteriosus ligation. This procedure involves accessing the ductus arteriosus, a vessel connecting the aorta and the pulmonary artery, and closing it off either through suture ligation or by using a metal clip or coil. This closure prevents the abnormal flow of blood between these two vessels.

It is important to note that the specific surgical approach may vary based on the patient's age, overall health, and the preferences of the cardiac surgeon. Therefore, it is crucial for a qualified medical professional to determine the most suitable surgical approach for each individual case.

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