Hydrogen is not considered a fossil fuel. Hence the correct option is b.
Hydrogen, as an element, stands apart from fossil fuels in its origin and composition. Unlike fossil fuels such as natural gas, anthracite coal, petroleum, and crude oil, which are formed through geological processes involving the decomposition of organic matter over geological timescales, hydrogen is a basic element abundant in the universe. While fossil fuels are carbon-rich and result from the ancient remains of plants and animals subjected to heat and pressure over millions of years, hydrogen is a simple molecule composed of two hydrogen atoms.
The extraction of hydrogen often involves methods such as electrolysis, where water is split into hydrogen and oxygen using an electric current, or through processes like steam methane reforming. These methods highlight the fundamental difference between fossil fuels and hydrogen – one being derived from ancient organic matter, and the other being a basic element harnessed through various technological processes.
Hydrogen holds promise as a clean and efficient energy carrier, especially when produced using renewable energy sources. Its combustion or use in fuel cells results in water as a byproduct, making it a cleaner alternative to traditional fossil fuels. As the world explores more sustainable energy options, hydrogen emerges as a key player in the transition towards cleaner and greener energy solutions. Hence the correct option is b.
Complete question:
Which one of the choices below is not considered a fossil fuel?
A) natural gas
B) hydrogen
C) anthracite coal
D) petroleum
E) crude oil
At about day 14 of the menstrual cycle, a mature ovum is released near a fallopian tube. this process is known as
At about day 14 of the menstrual cycle, a mature ovum is released in a fallopian tube. This process is known as:
During day 14, ovulation occurs but it can also happen earlier or later than that. Ovulation happens when an egg is released from your ovaries and sometimes two eggs are released and not just one.
The right ventricle transports oxygenated blood to the lungs. Please select the best answer from the choices provided. T F
The right answer is false.
The cardiac ventricles are the one or both lower chambers of the heart.
The right ventricle receives venous (deoxygenated) blood from the right atrium and propels it to the lungs through the pulmonary artery.
It is rather the left ventricle which receives oxygenated blood by the left atrium and propels it into the body through the aorta.
The right ventricle transports oxygenated blood to the lungs. Please select the best answer from the choices provided. The statement is false.
The right ventricle of the heart is responsible for pumping deoxygenated blood to the lungs for oxygenation, not oxygenated blood. The right ventricle receives deoxygenated blood from the right atrium and pumps it through the pulmonary artery to the lungs, where oxygen is exchanged and carbon dioxide is removed.
The oxygenated blood then returns to the heart through the pulmonary veins and enters the left atrium to be pumped by the left ventricle to the rest of the body.
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What type of blood cells are lymphocytes and monocytes"?
In the p generation, a true-breeding pea plant with genotype yyrr is crossed with a true-breeding plant with genotype
Parental generation is the first generation involving two individuals that are mated to foresee or analyze the genotypes of their offspring. Their probable set of offspring would constitute the so-called first filial generation (or F1 generation). A cross between two of the offspring in F1 generation would produce a new set of progeny called second filial generation (or F2 generation).In the P generation, a true breeding pea plant with genotype YYRR is crossed with a true breeding plant with genotype yyrr.
A portion of the dna molecule containing a sequence of base pairs that encodes a particular protein is known as a:
Chemically speaking, enzymes are composed of chains of _________________, and they are considered to be a type of __________________. A) fatty acids, lipid B) amino acids, protein C) nucleotides, nucleic acid D) monosaccharides, carbohydrate
Answer:
B) amino acids, protein
Explanation:
Most enzymes are chains of amino acids, this means that eventually this will form protein, enzymes are the molecules in charge of catalyzing biochemichal process in living beings, enzymes are in charge of setting in motion, slowing down or speeding up biochemical processes, they are basically in charge of finding the correct timing for the biochemical processes that happen in all the biological processes.
What ion is formed when an atom of mercury (Hg) loses two electrons?
Hg–1
Hg–2
Hg+1
Hg+2
The ion formed when mercury looses two electrons is Hg^2+
An ion is formed when a chemical specie looses or gains electrons. The ion is positive if electrons are lost and the ion is negative when electrons are gained.
Mercury is a metal hence it is electropositive. It looses electrons easily. As such, when mercury looses two electrons, it forms the ion Hg^2+.
Hence, when mercury looses two electrons, it forms Hg^2+
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The most common way infections are spread in the healthcare setting is by the
"the movement of substances out of the glomerulus and into bowman's capsule is referred to as _____.
The of substances movement out of the glomerulus and into Bowman ’s capsule is referred to as
Filtration and Aldosterone enclosed to the cells of the glomerulus, permitting them to "loosen up" and allow wastes to move into the filtrate.
What lobe of the brain allows you to know someone is scratching your back?
Answer:
Pariental
Explanation:
This layer contains areolar and adipose connective tissue, has a tendency to store fat, and is an area where drugs are commonly injected because of its high vascularity.
The hypodermis, or subcutaneous layer, contains adipose and areolar connective tissue, which stores fat, provides insulation, and serves as a protective cushion. Due to its high vascularity, it is commonly used for drug injections. The adipose tissue consists largely of adipocytes specialized for lipid storage.
The layer being referred to in the question is the hypodermis, also known as the subcutaneous layer. This layer is situated below the dermis and is comprised primarily of adipose connective tissue and areolar connective tissue. The adipocytes, which are fat cells, within the adipose tissue are specialized for lipid storage and play several key roles including energy storage, insulation to maintain body temperature, and providing cushioning to protect underlying structures.
The hypodermis is notably vascularized, which means it contains a rich supply of blood vessels, making it an ideal site for injections as drugs can be absorbed efficiently into the bloodstream. Areolar connective tissue found in this layer is a type of loose connective tissue that binds the skin to underlying muscles and supports other internal organs.
The stored fat within the hypodermis serves as an energy reserve and can be broken down and utilized as needed by the body. The adipose tissue located here is significant in weight control and is an area of concern for individuals managing their body weight.
Two true-breeding stocks of pea plants are crossed. One parent has red, axial flowers and the other has white, terminal flowers; all F1 individuals have red, axial flowers. The genes for flower color and location assort independently. If 1,000 F2 offspring resulting from the cross, approximately how many of them would you expect to have red, terminal flowers?
When crossing two true-breeding pea plants with different flower colors and positions, approximately 63 out of 1,000 F2 offspring are expected to have red, terminal flowers due to independent assortment and dominance of red color and axial position.
When crossing two true-breeding pea plants, one with red, axial flowers and the other with white, terminal flowers, the F1 generation shows all plants with red, axial flowers. Red flower color is dominant over white, and axial position is dominant over terminal. Since the question states that genes for flower color and location assort independently, we can use Mendel's law of independent assortment to predict the F2 generation.
Let's designate the alleles for flower color as R for red and r for white, and the alleles for flower position as A for axial and a for terminal. The parental generation genotypes are RR (red) and rr (white) for color; AA (axial) and aa (terminal) for position.
The F1 generation will all be RrAa, displaying the dominant phenotypes (red, axial). In the F2 generation, we consider the possible gametes of the F1 plants: RA, Ra, rA, and ra. Using a Punnett square, we calculate the possible offspring. We are interested in the offspring with red, terminal flowers. The genotype for red, terminal flowers is Rraa, which will occur in 1/4 (for the red color, Rr) times 1/4 (for the terminal position, aa) of the offspring, resulting in 1/16 of the F2 plants.
Expecting 1/16 of the 1,000 F2 offspring to have red, terminal flowers, we can therefore predict approximately 62.5 or about 63 plants will display this phenotype.
Unlike a typical chandelier, dale chihuly's are a different species. they __________
During a routine prenatal care visit, a pregnant woman in her last trimester of pregnancy reports that she has occasional shortness of breath. the nurse instructs her that:
Almost all the physiological alterations that occur during the third trimester of pregnancy contribute to shortness of breath. The growth of the uterus exerts pressure on the diaphragm, reducing breath volume and resulting in dyspnea. However, this condition typically improves when the fetus descends lower in the uterus, a process known as lightening.
Explanation:During the last trimester of pregnancy, physiological changes occur that can lead to occasional shortness of breath. One key change is related to the respiratory volume, which increases by approximately 50 percent because of the increased oxygen demands of the fetus and heightened maternal metabolic rate. Meanwhile, the growing uterus exerts an upward pressure on the diaphragm, which can decrease the volume of each breath and potentially trigger shortness of breath or dyspnea.
This dyspnea is usually temporary. During the final weeks of pregnancy, a process known as lightening occurs, whereby the pelvis becomes more elastic and the fetus descends lower in the uterus. This change often lessens the pressure on the diaphragm, thereby alleviating the dyspnea.
However, if the shortness of breath worsens or is accompanied by other concerning symptoms, it's important for the mother to seek further medical advice as it could be a sign of a more serious condition.
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The complex of dna and protein that makes up a eukaryotic chromosome is properly called _____. (concept 12.1)
Dead and decaying organic matter, including waste products, is called:
Elevated white blood cell count and neutrophils during pregnancy
What relays sensory information to the cerebral cortex?
The nerves that are located outside the spinal cord and brain are part of the
Why is glycolysis an appropriate term for this step of cellular respiration?
Baroreceptors are a type of __________ that monitors __________.
Which factor should be checked when evaluating the effectiveness of an alpha-adrenergic blocker given to a client with benign prostatic hyperplasia (bph)?
What biological macromolecule is made up of monomers like the one shown below?
A molecule with the formula C6H12O6. Five carbon atoms and one oxygen atom form a hexagonal ring, with the other atoms bonded to that ring.
From the other 4 Questions I checked that were similar, they all said carbohydrates was the wrong answer
During anaerobic cellular respiration in skeletal muscles, pyruvic acid produced by _____ is converted into _____.
Answer:
During anaerobic cellular respiration in skeletal muscles, pyruvic acid produced by glycolysis is converted into lactic acid.
The glycolysis is the process by which one molecule of glucose is converted into two molecules of pyruvate.
During anaerobic respiration in muscles (such as occurred during exercise) the lactic acid fermentation takes place by which the pyruvate is converted into the lactic acid. The reaction is catalyzed by the enzyme lactic acid dehydrogenase.
Pyruvic acid is produced as a result of the breakdown of glucose through glycolysis. This pyruvic acid is utilized during anaerobic respiration to form lactic acid in the muscles.
Further Explanation:
The cellular respiration involves both aerobic and anaerobic respiration. Both the respirations starts from glycolysis with the formation of pyruvate. The pyruvate either enters the aerobic pathway or anaerobic pathway depending on the condition of the cell.
During aerobic respiration, the cell produces 36 ATP with oxygen as the final acceptor of electrons. It is a process involving multiple steps and includes glycolysis as the initiator process. The pyruvate thus formed is converted into acetyl CoA which then enters the Krebs cycle. In the Krebs cycle, series of reactions occur with the production of ATP, FADH2, and NADH. The electrons from FADH2 and NADH are transported to the electron carriers in the electron transport chain which in turn results in the formation of ATP with the liberation of oxygen.
During anaerobic respiration, glycolysis still occurs as it is oxygen-independent process. Due to the absence of oxygen, the resulting pyruvate cannot enter the Krebs cycle and therefore, undergo the aerobic pathway. The pyruvate breaks down anaerobically to form lactic acid which is a common phenomenon in the muscles during exercise. At the time of exercise, glycogen is the main source of energy which eventually is cleaved to form glucose which finally produces pyruvic acid through glycolysis. The pyruvic acid generally enters the oxidative phase of glycolysis in order to produce ATP but due to the absence of oxygen during excessive exercise the pyruvate enters anaerobic phase. In this phase, lactic acid is produced from pyruvate which is released into the bloodstream. The muscles undergo anaerobic respiration because the energy demand by the cells overpowers the oxygen supply to the cell which is necessary for the production of ATP.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Cellular Respiration
Keywords:
Cellular respiration, aerobic respiration, anaerobic respiration, ATP, glucose, pyruvate, lactic acid, Krebs cycle, glycolysis, glycogen, muscle respiration.
Do you capitalize things in quotes that are capitalize in the piece
Another name for health insurance specialist is
A health insurance specialist can also be referred to as a medical billing and coding specialist or a healthcare billing specialist. They are crucial in the healthcare industry, managing insurance claims and patient accounts.
Explanation:Another name for a health insurance specialist is a medical billing and coding specialist or a healthcare billing specialist. These professionals play a crucial role in the healthcare industry. They are responsible for processing insurance claims, managing patient accounts, and ensuring that hospitals and medical offices are reimbursed for the services they provide.
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A material with a lower/higher R-value is a better insulator.
A material with a higher R-value is a better insulator.
The R-value is a measure of a material’s (such as a layer of insulation) resistance to conductive heat flow. Materials with higher R-value indicate better insulating properties or effectiveness. Certain factors such as the thickness, density and the type of insulation determine the R-value of most materials while for some insulation, it is also determined by aging, temperature and moisture accumulation.
Sometimes a bee performs a maneuver, known as the “wiggle dance” in front of another bee. what is the purpose of the maneuver?
Which mechanism(s) are responsible for introducing new alleles into a population's gene pool? A) gene flow B) emigration C) niche shift D) natural selection
A) gene flow because blank blank blank
Answer:
A) gene flow
Explanation:
Through gene flow, populations exchange alleles, and can therefore acquire new alleles that they did not have before. To ensure gene flow (of alleles) between two different populations, there must be reproduction among their individuals. That is, individuals from population 1 must reproduce with individuals from Population 2.
When actively growing cells are treated with taxol, they often are unable to complete the cell cycle. based on what you have learned about cell-cycle checkpoints, which checkpoint likely causes these cells to arrest? explain your reasoning?