Debris (Hydrogen and helium) from the big bang gravitationally clumped together, and frequently these clumps got big enough to start fusion in their centers and form stars.
What is big bang theory?
The Big Bang theory explains how the cosmos expanded from a highly dense and hot starting condition. The evolution of the observable cosmos from the earliest known times up to its later large-scale shape is explained by this prevalent cosmological model. A wide range of observable phenomena, such as the quantity of light elements, the cosmic microwave background (CMB) radiation, and large-scale structure, are all thoroughly explained by the model.
Eventually, the large gaseous balls fuse hydrogen into heavier elements, which causes them to become stars. The periodic table's iron is created when stars combine light elements to create heavier ones.
The remaining elements of the periodic table are created as a result of the stars exploding, producing white dwarfs that explode, or forming neutron stars that collide and explode. The remaining hydrogen gas is now "contaminated" by this other material, and some of it forms an accretion disk in which planets form when it compresses under gravity.
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Which sequence of structures correctly indicates the direction in which an electrical signal is carried in a typical multipolar neuron?
The sequence of structures that correctly indicates the direction in which an electrical signal is carried in a typical multipolar neuron is- dendrites, cell body and axon.
A typical multipolar neuron consists of dendrites, cell body and axon. the electric signal in the neurons are first received by the dendrites that are the branching structures arising out of the cell body.
Cell body is the main part of the neuron which have the nucleus and other cell organelles. The electric signal are passed from the dendrites to the cell body.
From cell body the signal reaches the axon through the axon hillock. Axon transmits the signal to the other cell either in the form of chemical or electrical signal.
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When environmental conditions around a bacterium are either a neutral ph or an alkaline ph, the surface of a bacterium will:__________-
When environmental conditions around a bacterium are either a neutral ph or an alkaline ph, the surface of a bacterium will: have a negative charge
To identify if a bacterium has a negative charge a gram stain must be performed, this is a rapid laboratory test used to detect the presence of bacteria that cause an infection, if the result of the gram stain is red the bacteria are gram negative.
What is a bacteria?It is a microorganism formed by a single cell, of small size. Its cellular structure is prokaryotic and it is characterized by not having a nucleus.
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Dr. chu studies the environmental influences on gene expression by studying identical twins that have been reared apart. dr. chu's field of study is called:_____.
Dr. chu studies the environmental influences on gene expression by studying identical twins that have been reared apart. Dr. Chu's field of study is called epigenetics.
Gene expression is the process from which the functional proteins are made from a gene by the processes of transcription and translation. First m-RNA is formed from the DNA and the it is translated to form the protein. All the proteins formed inside the body are a result of gene expression.
Epigenetics is the study of reversible changes in the gene. These changes are not inherited to the further generations. The environmental factors are the major reason for thee changes. The changes could be methylation, acetylation, etc.
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Salivary glands produce large amounts of enzymes, such as amylase, that are secreted out of the cells . Which of the following explanations best fits abundance of certain organelles over others in these cells ?
Answer:
Sorry if this doesn't help, but I believe the answer would be
"ribosomes".
(I'm not experienced in this subject but I hope I could help!)
Salivary glands produce large amounts of enzymes, such as amylase, that are secreted out of the cells. Ribosomes are the organelles which are more abundant in cell over others. Thus, the correct option is B.
What are Ribosomes?Ribosome are the cell organelles which are abundant in the cells over the other organelles. Ribosomes are found attached to the surface of the Endoplasmic reticulum, these structures are called Rough Endoplasmic Reticulum (RER).
Ribosomes are the cellular machinery which are responsible for making proteins through the process of translation. There are many ribosomes in each cell, which are made up of two subunits. These two subunits include one large and one small subunit which lock around the messenger RNA (mRNA) and then travel along the length of the mRNA molecule reading each three-letter codon which encode different amino acids and hence proteins.
Therefore, the correct option is B.
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Your question is incomplete, most probably the complete question is:
Salivary glands produce large amounts of enzymes, such as amylase, that are secreted out of the cells . Which of the following explanations best fits abundance of certain organelles over others in these cells?
A. Mitochondria
B. Ribosomes
C. Endoplasmic Reticulum
D. Golgi Apparatus
About twenty-five of the ninety-two natural elements are known to be essential to life. which four of these twenty-five elements make up approximately 96 percent of living matter?
CHON known as carbon, hydrogen, oxygen, and nitrogen are the four elements of the essential twenty-five elements make up approximately 96 percent of living matter that make up most living things: carbon, hydrogen, oxygen, and nitrogen.
The relative atomic sizes of sulfur, phosphorus, nitrogen, oxygen, and hydrogen
The six most significant chemical elements, whose covalent pairings make up the majority of biological compounds on Earth, are collectively represented by the abbreviation CHNOPS, which stands for carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur. These elements were produced in stars in space long ago, and when a supernova happened, they were sent into space. These are all nonmetals or non-elements.
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how can inheriting new characteristics be helpful for an organism?
Answer:
It will essentially help the organism for when it evolves whether it inherits good or bad characteristics.
Explanation:
Because it will have to evolve, it will either die out or thrive through those new characteristics. Which is a part of life.
A fractured femur can result in the loss of ______ or more of blood into the soft tissues of the thigh.
A fractured femur can result in the loss of one litre or more of blood into the soft tissues of the thigh.
What is the femur?Your thigh bone is called the femur. It is your body's longest and strongest bone. It is essential to your capacity to stand and move. In addition, the femur supports numerous significant muscles, tendons, ligaments, and components of your circulatory system.
How long does it take to heal a broken femur?Most frequently, recovery takes 4 to 6 months. The severity of your fracture, whether you have skin wounds, and their severity will all affect how long it takes you to recover. The extent of your nerve and blood vessel damage, as well as the kind of your treatment, will also affect how well you recover.
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What brain structure enables this water polo player to coordinate his swimming and throwing motions?
Cerebellum brain structure enables this water polo player to coordinate his swimming and throwing motion.
Cerebellum - A large number of processes and functions in both our brain and body are coordinated and regulated by the cerebellum, which is a component of the brain. Even though it's quite little compared to our entire brain, it contains more than half of the body's neurons. Neurons are the cells that make up your nervous system.
Neurons- The basic building blocks of the brain and nervous system are neurons (neurons or nerve cells). Neurons are the cells that receive sensory information from the outside world, give motor orders to our muscles, and convert and relay electrical impulses at each stage along the way.
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If a total of 2000 kcal were consumed (energy came from 250 grams of carbohydrates, 66 grams of fat, and 102 grams of protein), what percentage of energy comes from carbohydrates, fat, and protein?
The percentage of energy that comes from carbohydrates, fats and protein are 50%, 30% and 20% respectively.
What are biomolecules and its importance?Biomolecules are necessary for the functioning of all living things. Many different small and big molecules, including amino acids, vitamins, fatty acids, neurotransmitters, and hormones, make up biomolecules (protein, carbohydrates, nucleic acids, and enzymes). Nucleic acids, lipids, proteins, and carbohydrates make up the four primary categories of biomolecules.
How long can people live without biomolecules?
Lipids, proteins, carbohydrates, and nucleic acids make up the building blocks of life. All life on Earth depends on each and every one of the four groups. A cell or creature could not exist without one of these four molecules.
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With which body system does the respiratory system work to regulate the ph of body fluids?
The respiratory system interacts with the circulatory system to deliver this oxygen and eliminate metabolic waste. Additionally, it aids in controlling blood pH.
What is the circulatory system of the body?To obtain oxygen into the blood, the circulatory system (cardiovascular system) pumps blood from the heart to the lungs.Blood arteries in the circulatory system move blood away from and toward the heart. The remainder of the body receives oxygenated blood from the heart via arteries. Oxygen-depleted blood is returned to the heart by veins to restart circulation.The importance of the circulatory system.The circulatory system removes wastes from the body and provides nutrition and oxygen to cells.Different sides of the heart pump both oxygenated and deoxygenated blood. Arteries, capillaries, and veins are the different types of blood vessels.learn more about circulatory system here
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To examine by ______________ means to tap firmly on a specific body site to detect resonating vibrations.
Percussion means tapping firmly on a specific body site to detect resonating vibrations.
Leopold Auenbrugger von Auenbrugg, an Austrian physician, published the first account of the surgery in 1761. Although it was mostly disregarded by his contemporaries, it is now often used. Percussion is the act of tapping various body parts with the fingers, hands, or small instruments as part of a physical examination. To ascertain The shape, texture, and boundaries of body organs. fluid levels inside or outside of body parts. Along with inspection, palpation, auscultation, and inquiry, it is one of the four techniques used during a clinical examination. Similar to how simply tapping on a container with your hands causes different noises, lightly tapping on the chest wall causes different sounds depending on how much air is present in the lungs. To ascertain:
The shape, texture, and boundaries of body organs. fluid levels inside or outside of body parts.
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A blood alcohol content (bac) of ______ or higher produced driving impairment in all people.
A blood alcohol content (bac) of 0.5 or higher produced driving impairment in all people.
Blood Alcohol Content- The amount of alcohol in the blood or on the breath is known as the blood/breath alcohol concentration (BAC). The mass of ethanol, in grams, in 100 milliliters of blood or 210 liters of breath is used to measure blood alcohol content (BAC). Blood, urine, or breath tests can be used to determine BAC.
Blood alcohol levels depend on a variety of variables, including the quantity of drinks consumed, body weight, gender (females have greater blood alcohol levels than men when they consume the same amount of alcohol), and number of drinks.
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What are the functions of the stratum corneum layer of the skin? select all that apply.
The function of stratum corneum prevent unwanted materials from entering and excessive loss of water from existing the body.
What happens when the stratum corneum is damage?Damage of stratum corneum lead to multiply skin impairment including increase transepidermal water loss , redness,and susceptibility to infection or irritation by external factors.
The function of corneum stratum to form a barrier to protect underlying tissue from infection, dehydration chemicals and mechanical stress.
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Based on what you have learned from your rankings in parts a and b, why is it generally hotter in summer than in winter?.
We feel hotter in summer than in winter because the temperature is generally higher than in winter.
What are seasons?There are three seasons on earth namely winter, summer, and rainy season. In the winter season, the temperature is cold and during summer the temperature is higher.
Timing and characteristic of season depend upon the location of the earth. The time of a year region experience season depends on it is northern hemisphere or southern hemisphere.
The southern hemispheres experiences winter while northern hemisphere experiences summer. The cycle of seasons is caused by earth's tilted towards the earth. The planet rotates around an axis.
Therefore, We feel hotter in summer than in winter because the temperature is generally higher than in winter.
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The type of lipid formed from rings of carbon atoms which regulate sexual function, blood glucose levels and are an important component in cell membranes are known as?
The type of lipid formed from rings of carbon atoms which regulate sexual function, blood glucose levels and are an important component in cell membranes are known as Steroids.
Steroids- A steroid is an organic molecule having four rings organized in a certain chemical configuration that is physiologically active. The two main biological roles of steroids are as signaling molecules and as critical elements of cell membranes that affect membrane fluidity.
Cell Membrane- All cells have a cell membrane, also known as a plasma membrane, which divides the inside of the cell from the external environment. The movement of materials into and out of the cell is controlled by the cell membrane.
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What type of epithelial tissue is most likely to be found lining the respiratory passageway due to its ability to move mucus?
The pseudostratified columnar epithelium is the most likely to be found lining the respiratory passageway due to its ability to move mucus.
What is a respiratory passageway?The web of tissues and organs that aids in respiration is termed as the respiratory system.
The majority of the respiratory system is lined with respiratory epithelium, a ciliated pseudostratified columnar epithelium that is absent from the larynx and throat.
Thus, the pseudostratified columnar epithelium is the most likely to be found lining the respiratory passageway due to its ability to move mucus.
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Some scientists are studying a newly discovered microbe and determine that it consists of a single cell, lacking a nucleus. this organism could be:_____
Some scientists are studying a newly discovered microbe and determine that it consists of a single cell, lacking a nucleus. this organism could be a bacterium.
What do you mean by bacterium?Any of a large group of one-celled organisms that reproduce by fission or by generating spores, lack a cell nucleus, and occasionally cause disease. They are the most prevalent life forms on Earth, present in all living organisms as well as all climatic conditions.What can be discovered in bacteria?Its gel-like matrix, which also contains other cell components like ribosomes, chromosomes, and plasmids, is made up of water, enzymes, nutrients, waste products, and gases.The cytoplasm and all of its elements are enclosed by the cell membrane. Bacteria do not have a nucleus that is contained in a membrane like eukaryotic (true) cells do.To learn more about bacteria visit:
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Sexually reproducing organisms produce ____________ gametes when ____________ cells undergo meiosis.
Answer:
haploid gametes and germ cells
During ________, the shortest phase of mitosis, chromosomes are pulled toward the poles of the cell.
According to the research, the correct option is anaphase. During anaphase, the shortest phase of mitosis, chromosomes are pulled toward the poles of the cell.
What is anaphase?It is one of the stages of mitosis, which is a method of cell reproduction, where the separation of pairs of chromosomes that are homologous occurs.
In this sense, the sister chromatids (the units of the chromosome that have already been duplicated) separate from each other and are pulled towards the opposite poles of the cell, that is, they move towards the opposite sector of the cell through the achromatic spindle.
Therefore, we can conclude that according to the research, the correct option is anaphase. During anaphase, the shortest phase of mitosis, chromosomes are pulled toward the poles of the cell.
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What characteristics make a particular molecule organic? select the two answers that are correct.
Organic molecules are more complex than inorganic molecules. They generally have carbon hydrogen and carbon oxygen bonds.
What are organic molecules?Organic molecules generally have carbon, oxygen and hydrogen bonds. Organic chemistry is a branch of chemistry that deals with organic chemistry.
Organic molecules are compounds with complicated structures. Carbohydrates, lipids and proteins are some kind of organic molecules. Organic molecules are generally larger than inorganic molecules.
Carbon chain in organic molecules can be straight, branched or ring shaped. This compounds have some functional groups such as hydroxyl, methyl and carbonyl.
Therefore, Organic molecules are more complex than inorganic molecules. They generally have carbon hydrogen and carbon oxygen bonds.
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please help me with this question please please
Animals, Plants, and Fungi are multicellular, meaning that they have more than one cell in their body. Each cell also has a nucleus in it, a property which the other two kingdoms, Bacteria and Eubacteria don't have.
Pls give brainliest.
True or false: once glucose, galactose, and fructose enter the absorptive cells, they are transported to the portal vein and then to the liver.
It is true that once glucose, galactose, and fructose enter the absorptive cells, they are transported to the portal vein and then to the liver.
Absorptive cells are also known as enterocytes. These cells line the lumen of the small intestine and the colon. They are meant to absorb the nutrients from the digested food inside the lumen of intestine. Apart from absorption, they also transport the nutrients across the membrane.
Portal vein is the blood vessel that transports blood from the GI tract, pancreas, gall bladder and spleen into the liver. This blood vessels belongs to the portal venous system. Its location is the upper right quadrant of the abdomen.
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Which method of degradation is appropriate for proteins located within the cytoplasm?
Proteasomal degradation is the method appropriate for the degradation of proteins in the cytoplasm.
Proteins are required by body enzymes for various functions. The unused proteins or damaged proteins are recognized and degraded in the cells themselves. The process of degrading proteins is generally known as proteasomal degradation. It involves two types of pathways- a ubiquitin-proteasome pathway and lysosomal proteolysis.
1. Ubiquitin proteasome pathways
This involve marking the proteins with ubiquitin. Ubiquitin is a polypeptide conserved in eukaryotes. Multiple units of ubiquitin are attached to the amino group of the side chain in a lysine protein residue. This multi ubiquitin chain is recognized and degraded by a protein complex called the proteasome.
2. Lysosomal proteolysis
It is a slower process of protein degradation. It involves taking up non-selective proteins by lysosomes. Lysosomal enzymes digest these proteins to degrade them.
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Explain how bacteria affect the water-holding and nutrient-holding capacity of soil?
Bacteria improve the nutrient holding capacity of the soil as they perform nutrient cycling as well as decomposition of dead and decaying matter that increases the nutrient richness of the soil. The water holding capacity is improved by the formation of aggregates of soil that hold the water molecules efficiently.
Nutrient cycling is the process in which a nutrient follows a specific path repeatedly and benefits the living organisms in the process. The pathway generally includes of both, the living as well as the non-living factors. The various nutrient cycles that run in the nature are: carbon cycle, sulfur cycle, nitrogen cycle, etc.
Decomposition is the process of decaying of the dead organic matter of plants or animal that results in the transfer of nutrients from the dead organic matter to the soil.
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When the drugs source of origin and chemical structure has been intentionally altered ti achieve a new beneficial property this drug is known as
When the drug's source of origin and chemical structure has been intentionally altered to realize a new beneficial property this drug is known as Synthetic Drug.
What are synthetic drugs?Drugs manufactured in a lab are known as synthetic drugs. Sometimes they'll be called designer drugs or club drugs. they have been made to mimic the effects of other drugs.
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When the drug's source of origin and chemical structure has been intentionally altered to realize a new beneficial property this drug is known as Synthetic Drug.
What are synthetic drugs?Drugs manufactured in a laboratory are known as synthetic drugs. Sometimes they'll be called designer drugs or club drugs.
A synthetic drug is a drug that contains with properties and effects similar to a known narcotic but having a slightly altered chemical structure, such a drug created in order to avoid restrictions against illegal substances.
What is an example of synthetic material?
Examples of Synthetic Materials include : synthetic fibers, ceramics, polymers, artificial foods and medicines, and composites. Synthetic fibers are flexible. They can be used in making clothing and other objects.
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Under anaerobic conditions, how do cells regenerate atp?
a) fermentation aerobic
b) respiration glycolysis, & creatine phosphate
c) pathway creatine
d) phosphate pathway
Option B: Under anaerobic conditions, cells generate ATP through anaerobic glycolysis and creatine phosphate.
Our body produces ATP through oxidative phosphorylation. ATP is used in various functions and gets hydrolyzed into ADP and inorganic phosphate. But during intense exercises like sprinting, our body becomes unable to produce sufficient ATP through oxidative phosphorylation.
In this condition, creatine phosphate is used to regenerate ATP molecules for a short time. Creatine phosphate, when short of oxygen, transfers high-energy phosphate to ADP. ADP then gets transformed into ATP and produces creatine out of the reaction.
Another mechanism to produce ATP when short of oxygen is through anaerobic glycolysis. In this method, glucose is converted to lactate. This is a faster mechanism that produces 2 molecules of ATP per glucose molecule. The energy produced through oxidative phosphorylation is 100 times slower than anaerobic glycolysis.
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Lysozyme is an enzyme that specifically recognizes bacterial polysaccharides, which renders it an effective antibacterial agent. into what classification of enzymes does lysozyme fall?
Lysozyme fall under Hydrolases in the classification of enzymes.
Lysozyme is an alkaline enzyme that belongs to the glycoside hydrolases class of enzymes. It inactivates bacteria by hydrolysing glycosidic linkages de the peptidoglycan layer of the bacterial cell wall (made of peptidoglycan). The scientific term for glycoside hydrolases is peptidoglycan N-acetylmuramoylhydrolase. FAO/WHO defines them as a polypeptide derived from hen's egg whites with 129 amino acids, a molar mass of about 14000gmol-1 and an isoelectric point of 10.7, and enzymatic activity to hydrolyse the β(1-4) linkages between N-acetylmuramic acid and N-acetylglucosamine in the outer membranes of bacterial species, particularly Gram-positive organisms, usually obtained in the hydrochloride form for food use.
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Diatoms, such as members of the genus navicula, belong to which major lineage of eukaryotes?.
Diatoms, such as members of the genus navicula, belong to the stramenopile lineage of eukaryotes.
Stramenopiles are a type of organism that have stiff tripartite outer hairs and flagella. Stramenopile is sometimes referred to as heterokonts. It has cells that are both nonphotosynthetic and photosynthetic. The stramenopile kingdom includes diatoms, brown algae, chrysophytes, and certain protozoa. Stramenopiles are eukaryotic since they are neither animals, fungi, nor plants.
Navicula is a species of diatom algae with boat-shaped cells. As a result, we may establish that diatoms, like those in the genus Navicula, are part of the stramenopile main lineage of eukaryotes.
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Which of these traits have been found by twin studies to be strongly hereditary? liking of spicy foods dislike of romance movies dancing ability schizophrenia stubbornness
Schizophrenia traits have been found by twon studies to be strongly hereditary.
What is hereditary?Hereditary theory holds that many physical characteristics can be passed down from generation to generation via DNA, by passing on the set of instructions or genes in your DNA to your offspring.
Heredity in biology refers to the transmission of genetic factors from parents to offspring or from one generation to the next. The biological definition of heredity may also refer to the association of a specific trait with an individual organism's genetic constitution rather than environmental conditions.
Eye color is an example of DNA.
There are four types of hereditary
Dominant, recessive, Co dominant, intermediate.
It is more likely that different combinations of genes make people more vulnerable to the condition. However, having these genes does not guarantee that you will develop schizophrenia. Twin studies provide evidence that the disorder is partially inherited. The same gene is shared by identical twins.
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The cells in this part of a plant form long, vertical tubes. What is the most
likely relationship between the structure and function of these specialized
cells?
The correct answer is the tubes allow water and nutrients to be transported throughout the plant.
Transport of water, nutrients, and photosynthates is made easier by the structure of a plant's roots, stems, and leaves. The primary tissues causing this movement are the phloem and xylem. How water and nutrients are carried in plants is influenced by water potential, evapotranspiration, and stomatal control. We must first comprehend the energetics of water potential in order to comprehend how these processes function.
An ordered function is carried out by a group of cells with a similar shape in plant tissues. The dermal, vascular, and ground tissues are the three primary tissue types that make up plant tissues.
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