Gas cloud 1: It spreads with a larger area and a lower elemental concentration. Its temperature never rises above 14 million Kelvin. It has hydrogen atoms with electrons retained.
Gas cloud 2: As a result of gravity, its volume decreases and density rises. Its temperature is consistently above 14 million kelvin. The electrons in hydrogen atoms are lost.
As you are undoubtedly aware, stars develop amid gaseous clouds. Interstellar gases, primarily made of dust and hydrogen, are present in these clouds. Low temperatures cause gases to react, mix, and form molecules, which then produce clouds and continue to react until they eventually form stars.
Since Cloud 1 spreads with a higher volume and a smaller concentration of components, its temperature maintains far below 14 million Kelvin, and it contains hydrogen atoms that retain their electrons, these traits indicate that Cloud 1 will eventually create a star.
Given that cloud 2 won't produce stars, we can state the following about it: Due to gravity, its volume decreases and density rises, but its temperature remains above 14 million kelvin.
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In humans, impulses that control the voluntary muscles of the skeleton travel along the nerves of the?.
In humans, impulses that control the voluntary muscles of the skeleton travel along the nerves of the Somatic system.
A division of your peripheral nervous system that permeates almost every aspect of your body is the somatic nervous system. This system's nerves transmit data from your senses to your brain. They also transmit orders from your brain to your muscles, allowing you to move.
More specifically, the reflex arc and voluntary muscle action are both controlled by the somatic nervous system. Between the central nervous system, which consists of the brain and spinal cord, and the skeletal muscles, skin, and sensory organs, this system relays nerve signals.
Thus, the control of voluntary muscles of the skeletal system is done by sensory nerves.
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as cells are pushed from the deeper portion of the epidermis toward the surface, multiple choice question. a) they divide continually. b) their supply of nutrients improves. c) they die. d) they become dermal cells.
As cells are pushed from the deeper portion of the epidermis toward the surface Option C. They die.
Your epidermis is the outermost layer of skin in your frame. It protects your frame from damage, keeps your frame hydrated, produces new pores and skin cells and carries melanin, which determines the coloration of your pores and skin.
The dermis in the main consists of keratinocytes (proliferating basal and differentiated suprabasal), which include 90% of its cells, however additionally consists of melanocytes, Langerhans cells, Merkel cells, and inflammatory cells.
The dermis and its waxy cuticle provide a defensive barrier against mechanical harm, water loss, and contamination. Numerous changed epidermal cells alter transpiration, boom water absorption, and secrete materials.
Three primary populations of cells are living in the epidermis : 1)Keratinocytes,
2) Melanocytes,
3) Langerhans cells.
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what enables electrical impulses to travel in a continuous cell-to-cell fashion in myocardial cells?
Only intercalated disks, thickened portions of the sarcolemma, enable electrical impulses to spread quickly in a continuous cell-to-cell fashion.
Myocardial conduction cells initiate and propagate the action potential that travels throughout the heart and triggers the contraction of blood . myocardial contractile cells constitute the bulk of the cells in the atrial and ventricles .
In side heart ,cardiac muscle tissue or myocardium , contains many cells that expand and contract in response to electrical impulses from the nervous system. These cardiac cells work in a manner that they produce the rhythmic and wavy contractions that is termed as heartbeat.
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in the poorest countries like ethiopia and bangladesh, biomass represents blank percent of their energy consumption.
In the poorest countries like Ethiopia and Bangladesh, biomass represents 90% of their energy consumption.
Why is biomass a good source of energy?Form of renewable energy produced when we burn biomass fuel is called biomass. Biomass fuels is derived from organic material such as harvest residues, purpose-grown crops and organic waste from homes, businesses and farms.
Biomass provides a clean and renewable energy source that can improve our environment , economy and energy security. Biomass energy generates less air emissions as compared to fossil fuels, reduces amount of waste that is sent to landfills and decreases our dependence on foreign oil.
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Read the article to learn more about the types of RNA, specifically mRNA and tRNA. Use the information to answer the following question.
RNA
Explain the roles of mRNA and tRNA in protein synthesis.
The messenger RNA or mRNA is a transcription molecule that carries the information of the DNA gene sequence to be used as a template to generate a polypeptide chain, while the transfer RNA or tRNA acts during translation to transport amino acids to the site of protein synthesis.
What is mRNA?The messenger RNA (mRNA) is a sequence obtained from the process of transcription which is complementary to the DNA gene sequence and serves to transport the genetic information from DNA to proteins. Moreover, the transfer RNAs (tRNAs) carry specific amino acids that are linked to the anticodon sequence and they are used during translation in the ribosomes.
Therefore, with this data, we can see that tRNA and mRNA are fundamental during protein synthesis.
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The messenger RNA or mRNA is a transcription molecule that carries the information of the DNA gene sequence to be used as a template to generate a polypeptide chain, while the transfer RNA or tRNA acts during translation to transport amino acids to the site of protein synthesis.
Explanation:
edge 2023
Which phrase best describes reproduction?
Responses
allows the offspring's parents to expend less energy during mating and birthing
allows the offspring's parents to expend less energy during mating and birthing
can either be sexual or asexual
can either be sexual or asexual,
allows for the continuation of a species and creates variety in a population
allows for the continuation of a species and creates variety in a population,
produces an exact copy of the parent cell
Answer:
can either be sexual or asexual
Oxygen is important in the oxidation of glucose because it ____________________________.
Answer:
is highly electronegative
Explanation:
if you were able to find a drug that could inhibit the reactivation of telomerase activity in cancer cells, the cancer cells would
If you were able to find a drug that could inhibit the reactivation of telomerase activity in cancer cells, the cancer cells would slowly erode their chromosome ends.
Telomerase is also known as terminal transferase. Telomerase is an enzyme found inside our cells that may be linked to aging. It caps our DNA strands with short, repetitive "caps." These caps are known as "telomeres." Telomeres protect the chromosome's end from DNA damage or fusion with neighboring chromosomes. When our cells divide, they must replicate their DNA in order for each daughter cell to receive a complete set of operating instructions. However, with each cell division, a small portion of the protective telomeres on the DNA strand are lost. Telomerase is active in gametes and most cancer cells, but is absent or present in very low levels in most somatic cells.
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what sequence of events is shared among dna mismatch repair, nucleotide excision and base excision pathways?
Nucleotide excision repair, base excision repair, double-strand break repair, and damage reversal are some of the mechanisms for repairing DNA damage.
What a nucleotide looks like in practise.The basic unit of a nucleic acid is assumed to be a nucleotide (e.g. DNA and RNA). A nucleic acid is a member of the major classes of macromolecules (the others are carbohydrates, proteins, and amino acids).
What are the main functions of nucleotides?Nucleotides have a variety of functions in animal physiology, including those of energy storage, transporters of active intermediates for biosynthesis, architectural moieties for coenzymes, & metabolic regulators.
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If the laci gene in the genetically engineered fluorescent strain were nonmutant but the laco sequence on the plasmid mutated to lacoc, how would the cells fluoresce in the presence of inducer? in the absence of inducer?.
The cell in the presence of an inducer would fluoresce in yellow and in absence of inducer it would not fluoresce.
When an inducer was present, the cell would glow yellow. Fluorescence doesn't exist without an inducer. The galaxy-wide enzyme galactosidase is responsible for lactose metabolism. This one encodes for the protein product that is also repressed, or which in the absence of lactose in the media and thus does not show fluorescence.
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The carbon cycle is one type of biogeochemical cycle that is necessary for the movement of matter.
What would happen if plants were removed from the environment?
If plants were removed from the carbon cycle, carbon will accumulate in the air as carbon dioxide and animals will not be able to obtain carbon.
What is the carbon cycle?The carbon cycle is a cycle that describes how carbon is recycled between the living and the non-living component of the environment.
Carbon is an essential element both for the living and the non-living components of the environment.
In living organisms, carbon is known as the element of life. This is because all living organisms require carbon for their existence. Carbon forms the backbone of all organic molecules.
Thus, in the carbon cycle, carbon is cycled between plants and animals, the atmosphere as well as in ocean water. Plants remove carbon from the atmosphere during photosynthesis. Animals release carbon during respiration.
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which of the choices is/are secretions produced by the pancreas? select all that apply. bicarbonate ions to neutralize stomach acid methane from fermentation gastrin to stimulate hcl production trypsin for further protein digestion lipase for fat digestion
Trypsin to further breakdown proteins Lipase is used to breakdown fat. gastric acid can be neutralised by bicarbonate ions.
What are the three different sorts of acids?Acids are frequently divided into three primary groups. The first is binary acid, followed by oxyacid and carboxylic acid. All binary acids are represented by the symbol "H-A," which stands for a hydrogen connection to a nonmetal atom.
Why is it called acid?The word "acid," which refers to the sour flavour and pungent odour of numerous acids, derives from the Latin word acidus, which meaning "sour." Examples: Because acetic acid and water are diluted, vinegar has a sour flavour. Lemon juice includes citric acid, which gives it a sour flavour.
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What would be the result of a cell that completed mitosis but did not successfully complete cytokinesis?
Answer:
Explanation:
two distinct, identical daughter cells.
Describe what
three things can happen to light energy as the sun shines on plant cells
The following can happen as the sun shines on plant cells:
Light energy can be absorbed by pigments and used in the photosynthesis reactionsIt can e transmitted or it can pass through the cellsit can be reflected. What are plant cells?Plant cells are eukaryotic cells present in green plants, photosynthetic eukaryotes of the kingdom Plantae.
The organelles found only in plant cells include the chloroplast, cell wall, plastids, and a large central vacuole. The chloroplasts contain a green pigment chlorophyll that is responsible for the process of photosynthesis.
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what are the requirements for photosynthesis to occur? 2) why do some trees appear green during the spring and summer, but then red / orange / yellow in the fall? 3) what are two factors that cause pigments to move at different rates during paper chromatography?
Which group of components is common to the circulatory systems of most living animals?
Vessels, heart, and circulating fluid is the group of components common to the circulatory systems of most living animals.
The circulatory system, which is composed of blood vessels and aids in transporting blood away from and in the direction of the heart, can be thought of as a system in the body. Both the arteries and the vein are present there; the arteries assist in moving blood away from the heart while the vein is responsible for returning blood to the heart. This implies that option B is the correct choice.
The circulatory system acts to remove waste materials like carbon dioxide with the help of circulating fluid in the vessels and to transfer other materials like oxygen, nutrients, and hormones to cells with the same circulating fluid in another vessels.
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Complete question is:
Which group of components is common to the circulatory systems of most living animals? A. arteries, veins, capillaries B. vessels, heart, circulating fluid C. aorta, ventricles, atria D. blood, heart, cavities
a collection of recombinant vectors that contains fragments of one organism's entire genome is called a(n) .
A genomic library is a collection of individual genome fragments from one organism.
What types of organisms are examples?Any living thing that has an organized structure, is capable of reacting to inputs, can breed, expand, adapt, & maintain equilibrium is described to as an ecosystem. Therefore, anything animal, vegetation, fungus, parasitoid wasp, bacterium, and archaeon found on Earth would be considered an organism.
Sperm—is it a living thing?Sperm are alive? That mostly depends on how you define "life." Sperm cells share several traits with living things, such as the ability to grow (mature), make energy from sugar metabolism, and move independently.
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mitosis forms a. two daughter cells with half the dna of the parent cell. b. two daughter cells with the same amount of dna as the parent cell. c. daughter cells called gametes. d. two daughter cells with twice the amount of dna as the parent cell. e. one daughter cell and another incomplete cell.
Mitosis forms b. two daughter cells with the same amount of DNA as the parent cell.
In the field of biology, mitosis can be described as a process by which the somatic cells of the body divide.
As a result of mitosis, two daughter cells are formed that are identical to each other and the parent cells.
The daughter cells formed as a result of mitosis have the same amount of DNA as the parent cell. As a result of this, the daughter cells are identical to the parent cell as no recombination occurs in the process of mitosis.
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which type of pacing involves the placement of large patch electrodes on the anterior and posterior chest wall that can be connected by a cable to an external pulse generator?
Large patch electrodes that may be connected to an external pulse generator are placed on the anterior and posterior chest walls during transcutaneous cardiac pacing (TCP). Since there is only one form of pacing that may be accessed from the outside, that type is transcutaneous cardiac pacing (TCP).
Transcutaneous cardiac pacing (TCP) is a short-term method for pacing a patient's heart in an emergency and stabilizing them until a better long-term method of pacing is found. Electric current pulses are administered via the patient's chest to cause the heart to contract.
In conscious patients, transcutaneous cardiac pacing (TCP) enables quick, effective, and noninvasive ventricular stimulation to treat symptomatic bradycardias, including atropine-resistant unstable bradycardia in the emergency room.
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a group of cells is assayed for dna content immediately following mitosis and is found to have an average of 10 picograms of dna per nucleus. approximately how many picograms of dna would be found in a nucleus at prophase of mitosis?
20 picograms of dna would be found in a nucleus at prophase of mitosis
What is cell cycle?
It refers to series of events that take place in a cell, resulting in the duplication of DNA and division of cytoplasm and organelles to produce two daughter cells.”
Phases of cell cycle
Interphase and M phaseInterphase has G1 phase, S phase and G2 phaseInterphase:
Also known as resting phase of the cell cycle; interphase is the time during which the cell prepares for division by undergoing both cell growth and DNA replication. It is divided into three phases:-
G1 phase: It is the phase of the cell between mitosis and initiation of replication of the genetic material of the cell. During this phase, cell is metabolically active and continues to grow without replicating its DNA.S phase (Synthesis) – The DNA replication takes place during this phase. If the initial quantity of DNA in the cell is denoted as 2N, then after the replication it becomes 4N. However the number of chromosomes does not vary, i.e. if the number of chromosomes during G1 phase was 2n, it will remain 2n at the end of S phase. G2 phase (Gap 2) –During this phase, the RNA, proteins, other macromolecules required for multiplication of cell organelles, spindle formation, and cell growth are produced as cell prepares to go into the mitotic phase.M phase:
This is mitotic phase or the phase of the equational division as the cell undergoes a complete reorganization to give birth to a progeny that has the same number of chromosomes as the parent cellMitotic phase is divided into four overlapping stages:-Prophase,
Metaphase,
Anaphase, and
Telophase
According to given data, 10 picograms of dna per nucleus was found in the cells following mitosis. DNA replication takes place in the S phase, thus doubling the dna per nucleus to 20 picograms.
S phase is followed by G2 phase, and then prophase (of M phase) during which there is no change in the DNA content of the cell.
Thus 20 picograms of dna would be found in a nucleus at prophase of mitosis.
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PLS HELP FOR MY EATH SCIENCE?!?
Plate tectonics play a key role in regulating Earth's climate by aiding in the cycling of materials such as carbon and water. What topographic feature can possibly indicate a planet is "healthy" and geologically
active?
A mountain ranges
B rivers
C plateaus
D plains
A planet's "health" and geological activity may be indicated by geographic features of the plains.
The correct answer is D
How does a planet stay healthy?Caregivers can track a patient's treatment over time with the use of integrated tools in the Epic Healthy Planet module. This gives them the ability to take action, regardless of where a patient receives care, to maintain or improve chronic illnesses.
Why would someone need a topographic map?On a two-dimensional surface, topographic maps depict the features of the Earth precisely and in scale. Topographic maps are a great planning aid and guide that also contributes to the enjoyment and safety of outdoor activities.
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which part of the nervous system is responsible for relaying information from the brain to the muscles so they can walk across the room and pick something up?
Somatic nervous system is responsible for relaying information from the brain to the muscles so they can walk across the room and pick something up.
Your body's movements are initiated by and under the control of your somatic nervous system. Nearly all voluntary muscular actions are controlled by the system, which is also in charge of processing sensory data that is received from external inputs like hearing, touch, and sight. This tells us that somatic nervous system would be responsible for the movement involved in walking across the room or other.
The peripheral nervous system, which enables the brain and spinal cord to receive and transmit information to other parts of the body, includes both the somatic and autonomic nervous systems. In order to control voluntary movements and reflex arcs, the somatic nervous system connects the central nervous system to the body's muscles.
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9. explain how nucleotide incorporation errors by dna polymerase can be repaired, and the role of methylation in the process.
Nucleotide incorporation errors can be repaired either by proofreading by DNA polymerase or mismatch repair.
1. DNA polymerase performs poofreading to ensure that its operations are accurate. A nucleotide that is incorrectly hydrogen bound to the opposite nucleobase in the template strand can be backed up and excised (removed) by the enzymes. The appropriate nucleotide is then inserted by the DNA polymerase.
2. Mismatch Repair corrects faults that DNA polymerase's proofreading process missed. An enzyme is then instructed to cut the sugar phosphate backbone of the new DNA strand by a specific protein that binds to the location of the mismatched nucleobase. The incorrect nucleotide is then eliminated when another enzyme breaks down a brief section of that DNA strand.
Methylation explains how cells may recognise which strand is new. Some nucleobases receive methyl groups shortly after an enzyme adds them to a DNA strand. The new strand is not instantly methylated since this process takes time.
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Nucleotide addition errors are possible with DNA polymerase.
Nucleotide incorporation by DNA polymerase is imprecise. It proofreads each newly inserted base to alter the DNA. Correct bases are inserted after removing incorrect bases, followed by the addition of another base. Although most errors are fixed during replication, the mismatch repair process is used when this does not take place.
The incorrect base is excised from the DNA by mismatch repair enzymes, which then replace it with the right base. In a different sort of repair called nucleotide excision repair, the erroneous base and a few bases on the 5′ and 3′ ends are taken out and replaced.
DNA polymerase is used to duplicate the template in order to replace the wrong base and the excised bases. The freshly created fragment's ends are joined to the remainder of ligase, which builds a phosphodiester bond, of the DNA.
The majority of DNA methylation is required for normal development and plays a critical role in a variety of vital processes such as genomic imprinting, X-chromosome inactivation, and repression of repetitive element transcription and transposition, and when dysregulated, contributes to illnesses such as cancer.
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What would be a good title for the graph? Pls help due today
Summarize Your Data in Plain English.
Left Justify Chart Captions Below Figure.
Keep Chart Captions Simple and Short.
Simplify Your Information.
Include Units of Representation.
Don't Forget Time Period!
During which days of the cycle does the level of progesterone in the blood increase most rapidly? What happens to the uterus during this time?
Cycle does the level of progesterone in the blood increase most rapidly is luteal or secretary phase
Progesterone is in the class of medication called as progestine and it is the female hormones and it work as part of hormones replacement therapy by decreasing the amount of estrogen in the uterus and this phase always occur from day 14 to day 28 of the cycle and progesterone stimulated by LH is the dominant hormone during this phase to prepare the corpus luteum and the endometrium foe possible fertilized ovum implantation and progesterone level rises after ovulation and peak five to nine days your luteal phase
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suppose 10 glucose molecules are formed during gluconeogenesis. calculate the amount of pyruvate, atp, and nadh molecules required.
2 Pyruvate molecules produce 1 molecule of Glucose. For producing 10 molecules of Glucose 2*10= 20 molecules of Pyruvate is required.
6 molecules of ATP is used for generating one molecule of Glucose. So for 10 molecules of Glucose, it will be 6*10= 60 ATP.
2 NADH molecules are used in gluconeogenesis to produce 1 Glucose molecule. So for 10 Glucose molecules, it will be 2*10=20NADH.
Gluconeogenesis is a manner that transforms non-carbohydrate substrates (which include lactate, amino acids, and glycerol) into glucose (parent 1). each lactate and alanine are first converted into pyruvate, which then enters the mitochondrion and is carboxylated to oxaloacetate (OAA) with the aid of pyruvate carboxylase (pc).
Gluconeogenesis is a metabolic pathway that consequences in the era of glucose from positive non-carbohydrate carbon substrates. it is a ubiquitous system, found in flora, animals, fungi, bacteria, and different microorganisms.
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biological evolution (the evolution of living cells) differs from chemical evolution (the evolution of the molecules that make living cells) in that biological evolution would have been possible only after the development of
Biological evolution differs from chemical evolution in that biological evolution would have been possible only after the development of true cells.
Biological evolution, sometimes also called organic evolution, is the process by which species (made of living cells) evolved over a long period of time. It mainly resulted from mutation caused by physical, chemical, and biological mutagens.
Chemical evolution is the process that occurs due to changes in the molecules' structures. In this evolution, the biomolecules are subjected to changes in extreme conditions, thus increasing their complexity over time. These molecules interacted with each other, possibly gaining the ability to pass on genetic materials and reproduce, which leads to the origin of life on Earth.
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Why is the car red? *
a. It absorbs red light.
b. It reflects red light.
Answer:
It's a and b tho
Explanation:
The car is red because, it absorbs and reflects red light
which statement correctly describes most cinder cone volcanoes?
a) they are one of the tallest types of volcanoes.
b) they have a single,symmetrical cone at the top.
c) they often take thousands of years to form.
d) they emit lava that slowly spreads before cooling.
Statement correctly describes most cinder cone volcanoes are they have a single, symmetrical cone at the top
Cinder cones are the simplest type of volcano and they are built from particles and blobs of congealed lava ejected from a single vent and as the gas charged lava is blown violently into the air and it break into small fragments that solidify and fall as cinders around the vent to form circular cone and oval cone and a cinder cone is a steep conical hill of loose pyroclastic fragment and such as volcanic and clinkers and volcanic ash
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Answer:B
Explanation:
Describe two problems in the loop you have created that can produce an imbalance of sugar in the blood and lead to diabetes.
If the pancreas does not have the ability to release insulin and If the insulin released by the pancreas does not correctly bind to the insulin receptors.
When a person has diabetes, their pancreas is either unable to produce any insulin or not enough insulin to control blood sugar levels. The absence of insulin prevents the body from using glucose as a fuel source.
If the pancreas is unable to release insulin or if the insulin it does release fails to properly attach to the insulin receptors. A lack of insulin can result in too much glucose in the blood, which can upset the equilibrium. Your body may create too much insulin, which may lead to a sugar imbalance and low blood sugar levels.
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