when does a star start to die

The smooth endoplasmic reticulum is crucial for lipid synthesis. The organelle responsible for the synthesis of biomolecules is known as the smooth endoplasmic reticulum (SER). There won't be any lipid creation if SER is missing from the cell.

'What is SER and its functions?'

Most eukaryotic cells have the smooth endoplasmic reticulum (smooth ER), a membrane organelle. It is a portion of the endoplasmic reticulum's endomembrane system. The synthesis of lipids, the production of steroid hormones, the removal of toxic metabolic waste products, and the storage and utilization of calcium ions within the cell are its primary tasks. The absence of membrane-bound ribosomes sets the smooth ER apart from the other endoplasmic reticulum regions. This organelle is particularly distinctive physically and frequently consists of tubular organelles termed cisternae.

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Primate distinctive traits mostly revolve around their endearing way of existence.

According to Sean Carroll, the three main characteristics that set members of our own species, Homo sapiens, apart from other primates are our enormous brains, ability to walk on two feet, and tool use.

We have experienced some slightly distinct natural selection forces over that time. Due to these variations, our ancestors acquired bipedalism, a considerably larger brain, and eventually speaking. The volume of the modern human brain is three times greater than that of great apes.

The most notable morphological and physiological differences between humans and chimpanzees are our improved cognitive capacities and a significant rise in the relative size of the human brain.

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Answer: The organism would be in the domain Eukarya. There are three biological domains namely Bacteria, Archaea and Eukarya.

Explanation: I took the K12 quiz

Corpus callosum connects the right and left cerebral hemispheres.

The right and left brain hemispheres are connected by the extensive fibre tract of axons known as the corpus callosum.

White matter fibres that connect the left and right cerebral hemispheres make up the principal commissural region of the brain, known as the corpus callosum.

Your brain's two hemispheres are joined by a substantial network of nerve fibres known as the corpus callosum, which permits communication and signal transmission between the two sides of the brain.

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The pace turns the solution turns yellow during the exercise rises.

When exercising for a predetermined amount of time, the amount of carbon dioxide produced is measured using the acid indicator BTB [Bromothymol blue]. The blue solution turns yellow when carbon dioxide is present. The pace at which the solution becomes yellow increases with the amount of carbon dioxide present. The muscles we use during exercise require more energy. When exercise can be managed, aerobic methods mostly satisfy this need. Since more oxygen is taken in and more carbon dioxide is out when muscles are working hard, this results in an increase in the rate of gas exchange in the lungs. These metabolic gases are carried to and from your tissues by your blood.

The amount of energy your body is using has a significant impact on the amount of carbon dioxide produced. For basic functions including those of your heart and digestive system, your body constantly needs energy. This indicates that carbon dioxide is also continuously released.

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Answer: see below

Explanation:

The removal of a population of bats from an ecosystem could have significant impacts on at least two other populations in that ecosystem. For example, if the bats were a key predator of insects, their removal could lead to an increase in the insect population, which could, in turn, have negative effects on plant populations. Alternatively, if the bats were a major pollinator of certain plants, their removal could lead to a decrease in the plant population, which could have knock-on effects on other species that rely on those plants for food or shelter. Overall, the removal of any species from an ecosystem can have complex and unpredictable impacts on the populations of other species.

Answer:

freckles with straight hair

no freckles with straight hair

Explanation:

In this scenario, having freckles is dominant over not having freckles, and curly hair is dominant over straight hair. The first parent is homozygous for freckles, meaning that they have two copies of the gene for freckles, and they have straight hair. The second parent does not have freckles and has straight hair.

There are two possible genotypes for the first generation offspring[F1] with respect to freckles: they could inherit one copy of the gene for freckles from each parent (meaning they would be heterozygous for freckles and would have freckles), or they could inherit two copies of the gene for not having freckles [meaning they would be homozygous for not having freckles and would not have freckles].

There are also two possible genotypes for the offspring with respect to hair type: they could inherit one copy of the gene for straight hair and one copy of the gene for curly hair (meaning they would be heterozygous for  straight hair), or they could inherit two copies of the gene for straight hair (meaning they would be homozygous for straight hair and would have straight hair).

Given these possible genotypes, there are four possible phenotypes for the F1 offspring: freckles with straight hair, freckles with curly hair, no freckles with straight hair, and no freckles with curly hair. However, since both parents have straight hair, it is not possible for the offspring to have curly hair, so the only possible phenotypes are freckles with straight hair and no freckles with straight hair.

Answer:

freckles with straight hair and no freckles with straight hair.

Explanation:

Lysogenic is the life cycle of the phase.

The lysogenic cycle is a stage of viral reproduction during which the DNA of the virus is replicated utilizing the DNA of the host cell. Lysogenic infection occurs when a virus does not produce any proteins but instead copies its DNA or genetic material with the assistance of the host. At that time, the virus' multiplication and continued life are entirely dependent on the machinery of the host cell.

Prokaryotic cells, which primarily comprise bacteria, exhibit the lysogenic cycle most frequently. However, it can happen in eukaryotic cells, which include both animal and plant cells. The lysogenic cell frequently occurs in bacteriophages, which are viruses that infect bacteria.

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DNA → RNA → protein means the term “central dogma.”

The central dogma of the molecular biology is a premise which states that ancestory particulars flows only in the one direction, starting from DNA, to RNA, than to protein, or RNA directly to the protein. In The Central Dogma, we get to know about the valuable places of runner RNA, the transferred RNA and the ribosomal RNA within the protein- structure process.

DNA is the reinforcement of the particulars, which captures the instructions for processing of other large molecules, which are called proteins. These instructions are kept within the cells, and than scattered among the chromosomes. These chromosomes are piled up of the thousands of little corridor of DNA, known as genes.

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Answer:

Yes, viruses lack cell wall but they have external covering which cannot be referred to as cell wall

It is important to remember when providing care to adults ages 80 and older that all older adults suffer from some of the generaliment that is present in the second option.

In general, older patients suffer from certain general diseases, such as high rates of cardiac disease, dementia, low immunity, and so on, so medical checks help them take better care of themselves.

Hence, it is important to remember when providing care to adults ages 80 and older that all older adults suffer from some of the generaliment that is present in the second option.

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The Calvin cycle has three basic phases carbon fixation, reduction, and regeneration.

In carbon fixation, two to three molecules of carbon phosphoglycerate are produced when CO2 binds to RuBP. The chloroplast stroma contains the enzyme ribulose bisphosphate carboxylase/oxygenase.

In reduction, 3-PGA molecules are transformed into glucose molecules, which are sugar molecules. Energy for this stage is provided by ATP and NADPH generated during the light-dependent activities of photosynthesis.

In regeneration, third phase requires ATP. At this stage, a portion of the G3P molecules are used to produce glucose, while the remainder are recycled to replenish the RuBP acceptor.

Hence, the calvin cycles provide energy as well as substrate.

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Answer:Mango plant can only be propagated sexually through seeds and asexually through grafting, budding or inarching. It is not possible to get anew mango tree by planting a stem of a mango tree on the ground.

Explanation:

There are three main places where these sources are found: in industrial processes, in the processing of natural gas, and in fuel combustion activities.

Carbon dioxide and water are changed into glucose and oxygen during photosynthesis using the energy from light. 1 glucose molecule and 6 oxygen molecules are created from 6 carbon dioxide and 6 water molecules.

When the oxygen-evolving complex splits water to supply protons and electrons to the chloroplastic electron chain, ATP and NADPH are produced, which serve as the energy source and reducing power for plant metabolism. Oxygen (O2) is evolved during photosynthetic electron transport.

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Answer:

In a chemical reaction, energy is required to break the existing bonds between atoms in the reactants, and energy is released when new bonds are formed to create the products. The net change in energy during a chemical reaction is known as the reaction's heat of reaction or enthalpy change. This energy change can be either endothermic (absorbing heat) or exothermic (releasing heat), depending on the specifics of the reaction.

Enzymes are proteins that act as catalysts in biochemical reactions. They speed up the rate of a reaction by lowering the activation energy needed for the reaction to occur. In photosynthesis, enzymes facilitate the conversion of light energy into chemical energy that can be used by plants to produce carbohydrates. In cellular respiration, enzymes facilitate the conversion of the chemical energy stored in food into a form that can be used by cells to produce ATP, the primary energy currency of the cell. Overall, enzymes play a crucial role in enabling the chemical reactions that sustain life.

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Explanation:

The size of the rocks mixed into the garden soil would be entirely Manuel's responsibility to investigate.

The non-living components of the environment, or abiotic influences, have a significant impact on living things. They may assist in figuring out topics like how tall trees grow, the locations of various animals and plants, and the causes of bird migration. Abiotic variables including water, sunshine, oxygen, soil, and temperature are crucial.

The solid parts of the Earth are known as the geosphere. All other layers of the Earth's interior are also a part of it, as well as the continental and oceanic crust.

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The larynx, often known as the sound box, is the organ that is responsible for the creation of sound in the human body.

The thyroid gland is one of the primary endocrine glands in our bodies. It has a role in the generation of thyroid hormones, including T3 and T4, both of which contribute to the maintenance of a normal metabolic rate in the body. The region of the thyroid gland known as the isthmus connects the right lobe to the left lobe of the thyroid gland. The fluid that is present in the thyroid follicle is called the colloid of the thyroid gland, and it contains the prohormone thyroglobulin. It is the follicular cell that is responsible for the generation and secretion of the thyroid hormones thyroxine (T4) and triiodothyronine. Follicular cells are generated around the colloid (T3). Extrafollicular cells are found around follicular cells, and they are also referred to as parafollicular cells. These cells are important in the production of a hormone known as calcitonin. Extrafollicular cells are found surrounding follicular cells.

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Sensory neuron located in PSN carry impulses toward the CNS.

Unipolar cell bodies of sensory neurons are located within sensory ganglia which may be in the dorsal root of the spinal cord or along cranial nerves.

Sensory neurons are the nerve cells that are activated by sensory input from the environment - for example, when you touch a hot surface with your fingertips, the sensory neurons will be the ones firing.

Sensory nerves carry signals to your brain to help you touch, taste, smell and see. Motor nerves carry signals to your muscles or glands to help you move and function.

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Assuming that no obvious signs of intra abdominal injury are present ,the correct option is b. Lumbar spine fracture.

It's not always the case that abdominal pain has an underlying cause. Constipation, menstrual cramps, digestion issues, overeating, and others may contribute to it ,the indigestion-related gas stretched or pulled muscles.

Any incident that seriously injures the abdomen is referred to as abdominal trauma. As a result of the severity of the trauma, several abdominal organs could be harmed. The majority of abdominal injuries fall into one of two categories: penetrating or blunt.

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The 3 codons in mRNA means that the four nucleotides that are found within the mRNA — A, U, G, and C.

The three of codons within mRNA refers to the four nucleotides that are set up in the mRNA — A, U, G, and C — which could produce a whole of 64 different combinations. Of these 64 codons, 61 codons signify the amino acids, and the left three codons signify the stop signals, which light at the end of protein emulsion process.

A nucleotide is one of the systemic factors, or systemic blocks, of deoxyribonucleic acid  and RNA. It generally comprises of a base( one of the four chemicals which are adenine, guanine, thymine, and cytosine) with a reinforcement of sugar and one of phosphoric acid.

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It is true that Bacterial cystitis is a common disorder of the bladder where bacteria infect the lower urinary tract which causes irritation and inflammation.

UTIs commonly happens when microbes outside the body enter the urinary lot through the urethra and start to duplicate. A type of Escherichia coli (E. coli) bacteria is responsible for the majority of cases of cystitis. However, infections can also be caused by other kinds of bacteria.

After intercourse, women can get bacterial bladder infections. UTIs can occur even in people who do not engage in sexual activity because the female genital area frequently contains bacteria that can cause cystitis.

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Bioethics is the study of ethical, legal and the social issues that arise in the biomedical and the bio medicine research that will be arising in the life sciences.

In order to raise the valid questions and validations regarding the  research and the various experiments that are happening in the field of research that whether they are following ethical norms or not.

Doctors Without Borders analyses strict neutrality along with impartiality in name of the universal  and medical ethics and right to the humanitarian help and demands full and unhindered freedom in the exercise of its functions.

The correct answer is option C that encourages the doctors to treat patients without the any kind of restrictions and regulations along with the norms and the various authentic statements that can be accepted.

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The four chemical bases of the DNA double helix always associate with the same mate to induce" base dyads," which are appertained to as the sequence order of DNA. Adenine( A) always dyads with thymine( T), but cytosine( C) always dyads with guanine( G).

The natural information that cells bear to develop and serve is decoded in the sequence of the bases, which are constantly appertained to by the original letters of their chemical names A, T, C, andG.

Understanding the function of genes and other factors of the genome depends on establishing the DNA's sequence. DNA sequencing may presently be done using a variety of ways, each with unique parcels, and the creation of new ways is a current focus of genomics exploration.

Sequencing DNA is the process of determining the locales of the four chemical" bases," or molecular structure blocks, that make up the DNA patch. Experimenters can determine what kind of inheritable information is stored in a certain DNA member thanks to the sequence. For case, scientists can use sequence data to determine which DNA stretches include genes and which DNA parts have nonsupervisory instructions that turn genes on and off. Sequence data can also — and this is important — highlight changes connected to genes that might beget complaint.

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The arguments for and against GM food are:

GMO crops also require fewer pesticide applications, which benefits the environment. The main concerns about GMOs revolve around allergies, cancer, as well as environmental issues, all of which may have an impact on the consumer.

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Answer:

removing electron from a Bonding Molecular Orbital or by adding electrons to AntiBonding Molecular Orbital.

The one that compares the new cells to the parent cell is option A. mitosis

The new cells are genetically identical to the parent cell. They are produced through the process of cell division, which is the way in which cells reproduce. There are two main types of cell division: mitosis and meiosis.

In mitosis, a single parent cell divides into two daughter cells that are genetically identical to the parent cell. In meiosis, the parent cell divides into four daughter cells that are genetically diverse.

Therefore, the correct answer is as given above. It can then be concluded that the concept which compares the new cells to the parent cell.

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The complete question goes thus:

A scientist is observing a sample of cells from a newly discovered organism under a microscope to determine how the organism reproduces. the scientist observes one cell divide producing two cells which are not like the original. each of these two cells then divide again, producing four new cells. which of the following best compares the new cells to the parent cell?

A. Mitosis

B. Meiosis

C. All of the above

D. None of the above

The term which indicates ,Something disgusting or offensive especially Filth or muck .

Origin of mung is first recorded in 1945-50 , it is computing slang to process in which the computer data and  also meant for making dirt followed , to make incremental changes to a file or an  a system eventually ruining or destroying the original and to modify an email address in an easily reversible way in order to avoid spam any substance that  considers as disgustingly foul or unpleasant play and  the state of being covered with unclean things plays and a state  which is characterized by foul or disgusting dirt termed as filth as common.

It is an offensive or indecent word or phrase

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The ekistics, technology of human settlements and it definitely says about the humans formula of living.

Ekistics entails the descriptive observe of all varieties of human settlements and the formula of trendy conclusions geared toward attaining concord among the population of a agreement and their bodily and sociocultural environments.

Geographers observe settlements due to the fact it's far a mirrored image of the connection among human beings and their environment. These styles also are used to assignment destiny agreement development. There are 3 principal agreement styles: nucleated, linear and dispersed.

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Disinfection is not sporicidal, in contrast to sterilization. Some disinfectants—referred to as chemical sterilants—will kill spores after prolonged exposure times (3–12 hours).

There are several types of bacteria that can be helpful or detrimental to us. Pathogens include bacteria, viruses, and other microbes that cause disease.

Healthcare professionals utilize aseptic method to shield patients from dangerous germs and other organisms when performing medical procedures.

Using an aseptic approach involves taking precautions against pathogen contamination. The toughest regulations must be followed in order to reduce the risk of infection. In operating rooms, clinics, outpatient care facilities, and other medical settings, healthcare professionals use aseptic technique.

Therefore, Disinfection is not sporicidal, in contrast to sterilization. Some disinfectants—referred to as chemical sterilants—will kill spores after prolonged exposure times (3–12 hours).

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Military studies have shown that individuals with lower levels of cardiorespiratory endurance or muscular endurance are more likely to be injured and also that improving fitness lowers injury risk.

Cardiovascular exercise boosts your overall health and it also helps you stay injury-free during workouts as well as doing everyday things.

Physical fitness reduces your risk for and resilience to accidental injuries, (especially as you get older).

Exercise strengthens the heart and improves circulation. The increased blood flow raise oxygen levels in the body and this helps in lowering the risk of heart diseases such as high cholesterol, coronary artery disease, and heart attack.

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