Answer:
slightly after 1990 (when it was 354.19)
Which of the statements is most accurate about how individual atoms produce light?
The concept of the photon emerged from experimentation with thermal radiation, electromagnetic radiation emitted as the result of a source’s temperature, which produces a continuous spectrum of energies.The photoelectric effect provided indisputable evidence for the existence of the photon and thus the particle-like behavior of electromagnetic radiation. However, more direct evidence was needed to verify the quantized nature of energy in all matter. In this section, we describe how observation of the interaction of atoms with visible light provided this evidence
Antimicrobiano solutions with water as the solvent are called what solutions, whereas anti microbial solutions with alcohol or water-alcohol solutions are called what?
Antimicrobial solutions with water as the solvent are called aqueous solutions, whereas antimicrobial solutions with alcohol or water-alcohol mixtures as the solvent are called tinctures.
What are Antimicrobial solutions?The antimicrobial solutions are those solutions that are produced from microorganisms which can be used for the treatment of infection caused by harmful microorganisms.
Antimicrobial solutions with water as the solvent are called aqueous solutions, whereas antimicrobial solutions with alcohol or water-alcohol mixtures as the solvent are called tinctures.
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How and why do scientists try to remove bias from their experimentation?
Answer:
The blind design should suffice.
Describe three characteristics of ultra processed foods that make it unhealthy for your body
1. Processed foods tend to contain added sugar and, often, high fructose corn syrup. Added sugar contains no essential nutrients but is high in calories.Regularly consuming an excess of added sugar can lead to compulsive overeating. It is also linked with health conditions such as obesity, metabolic syndrome, type 2 diabetes, and inflammatory diseases.
2. The ingredients list on the back of processed food packaging is often full of unrecognizable substances. Some are artificial chemicals that the manufacturer has added to make the food more palatable. Also, processed foods can contain dozens of additional chemicals that are not listed on their labels.
3. Carbohydrates are an essential component of any diet. However, carbs from whole foods provide far greater health benefits than refined carbohydrates.The body breaks down refined, or simple, carbohydrates quickly, leading to rapid spikes in blood sugar and insulin levels. When these levels then drop, a person may experience food cravings and low energy.Because refined carbs cause frequent increases and decreases in blood sugar, consuming them is linked with an increased risk of type 2 diabetes.
What is an anticodon?
the three bases on a tRNA that match up with mRNA
the three mRNA bases that code for an amino acid
the portion of DNA that codes for a protein
the bond between amino acids while they are in the ribosome
An anticodon refers to the the three bases on a tRNA that match up with mRNA; option A.
What is an anticodon?An anticodon is a complementary triplet of nucleotides which is found in tRNA molecules.
The anticodons are complementary to codons which are the triplets of nucleotides found in mRNA which code for a particular amino acid.
In conclusion, anticodons are complementary to codons.
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Enzymes
Which of the following can be cofactors?
Answer:
Cofactors can either be ions, such as zinc and iron ions, or organic molecules, such as vitamins or vitamin-derived molecules. Many of these cofactors will attach near the substrate binding site to facilitate the binding of the substrate to the enzyme.
Explanation:
❀(*´▽`*)❀
Why does the nose the feet and the tail of a rat have no hair
Answer:
A rat's tail lacks hair or fur for two main reasons. The first is more efficient heat dissipation. Without insulating fur or hair, the tail can lose heat more easily. The second reason for the hairless nature of the rat's tail is grip. These reasons are the same for the feet, but for the nose it is to enhance smell.
In your lab you are studying the genome of venomous rattlesnakes to find the gene which codes for their venom glands. One rattlesnake has a mutation and cannot produce venom. You compare his DNA to a normal rattlesnake. What type of mutation has occurred?
Normal: AATCGCTACGCACGTCAG
Mutated: AATCGCCATGCACGTCAG
A. Inversion
B. Insertion
C. Point mutation
D. Deletion
The type of mutation that occurred here is an inversion of three nucleotide bases (Option A).
What is an inversion?An inversion is a type of mutation where linear order of nucleotide in the mutated sequence is inverted.
In this case, we have an inversion that involves the following bases (bold highlighted) AATCGC TAC GCACGTCAG and AATCGC CAT GCACGTCAG.
In conclusion, this mutation is an inversion of the genomic sequence (Option A).
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PLS HELPP
Question 1(Multiple Choice Worth 3 points)
(04.05 LC)
How can the carbon in sediments reach the atmosphere?
Decomposition, fossil fuel formation, fossil fuel emissions
Photosynthesis, organic carbon, cellular respiration
Cellular respiration, diffusion, transpiration
Decomposition, diffusion, evaporation
Question 2(Multiple Choice Worth 3 points)
(04.05 MC)
Which statement best describes the role of animals in the water and carbon cycles?
Animals release carbon dioxide and water vapor as a by-product of cellular respiration.
Animals release carbon dioxide and water vapor as a by-product of photosynthesis.
Animals take in carbon dioxide and oxygen during cellular respiration.
Animals use oxygen to perform photosynthesis and release carbon dioxide as a by-product.
Question 3(Multiple Choice Worth 3 points)
(04.05 MC)
Which list below describes a possible path of rain through the water cycle?
Evaporation, condensation, precipitation, runoff
Runoff, ocean storage, evaporation, condensation
Transpiration, condensation, precipitation, runoff
Evaporation, precipitation, runoff, lake storage
Question 4(Multiple Choice Worth 3 points)
(04.05 MC)
What is the next phase of the carbon cycle for the carbon source labeled A?
Label A shows a collection of coal, oil and gas. Label B shows a collection of trees and vegetation. Label C shows sky and open atmosphere.
© Public Domain
Photosynthesis
Ocean storage
Fossil fuel emissions
Transpiration
Question 5(Multiple Choice Worth 3 points)
(04.05 LC)
Where is the last storage location for melted snow?
Rivers
Ocean
Streams
Mountains
Question 6(Multiple Choice Worth 3 points)
(04.05 MC)
What is a benefit of using nonrenewable resources?
Sustainable energy
No pollution
Clean fuel
Saves money
Question 7(Multiple Choice Worth 3 points)
(04.05 MC)
What is a possible cost of using renewable energy resources?
Non-sustainable energy
Habitat destruction
Costs less money
Fossil fuel emissions
Answer:
es ingles
Explanation:
dnkxkddnnxdidiiddieisikswnsxxxxxxxxxxxxxdxdxxdxdxd
How do monosaccharides combine to form polysaccharides?
by removing oxygen (O2) from the monosaccharide molecules
by removing hydrogen (H2) from the monosaccharide molecules
by adding water (H2O) to the monosaccharide molecules
by removing water (H2O) from the monosaccharide molecules
Monosaccharides combine to form polysaccharides by removing water (H2O) from the monosaccharide molecules. This is called dehydration.
Many monomers of monosaccharides combine to form polysaccharides. For example- many monomers of monosaccharide glucose combine to form starch, which is a polysaccharide. When molecules of monosaccharides combine, the removal of water molecules takes place. This reaction is called a dehydration or condensation reaction.First of all, a disaccharide is formed due to a condensation reaction in which two monosaccharides combine and a glycosidic bond is formed. Then, many condensation reactions take place between disaccharides, resulting in the formation of polysaccharides.Hence, when several monosaccharides combine, they lose water, resulting in the formation of polysaccharides.
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Where is ozone beneficial?
A. troposphere
B. stratosphere
C. mesosphere
D. thermosphere
Describe how the shape and size of nucleotides are important in the structure of double-stranded DNA.
The shape and size of nucleotides are important in the structure of double-stranded DNA because it allows DNA replication and protein synthesis to occur.
What is DNA?This is referred to as deoxyribonucleic acid and contains the genetic instructions in organisms.
The double stranded shape and size allows for a copy of DNA to be made during reproductive processes. This is therefore the reason why DNA has such shape and size in this context.
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Contrast how the shape or polarity of two different cellular communication molecules are detected by their target cell differently: oligosaccharides on cell surfaces, neurotransmitters, steroid hormones, polar hormones.
Cell receptors located on the surface identify specific signals and thus trigger different signaling pathways.
What is a cell receptor?A cell receptor is any type of macromolecule in the cell surface that binds to a specific ligand and thus triggers a concomitant cell response.
Cell receptors such as surface oligosaccharides or hormone receptors may trigger the activation of transcription factors and genes associated with phosphorylation in a signaling pathway.
The shape and polarity of communication molecules are fundamental to achieving effective binding by means of cell surface receptors.
In conclusion, cell receptors on the cell surface trigger signaling pathways.
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WILL GIVE THANKS AND BRAINLIEST :)
6. Two different populations of similar organisms are considered separate species when they are _____ isolated.
When two populations of similar organisms are reproductively isolated, then we consider them as separate species.
Species are formed when there is reproductive isolation between the different populations of similar organisms. Reproductive isolation can happen due to several factors such as environmental problems and natural calamities. Sometimes, a barrier arises between the two populations due to which populations of similar organisms get separated and the individuals of each population reproduce within their population. With time, their genetic makeup changes and they become separate species. The two species can have many similar characteristics. But, they will have genetic variations. For example- Solanum tuberosum and Solanum melongena are two different species but they have some common characteristics.Thus, when no reproduction occurs between the two populations from similar organisms, then they become different species.
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Newtons first law of motion states an object at rest will stay at rest unless a force acts on it it also states that an object in motion will stay in motion unless a force of X exponent newtons first law of motion is also known as the law of
Answer:
it is also known as the law of inertia
Explanation:
The property of a body to remain at rest or to remain in motion with constant velocity is called inertia. that's why it's called law of inertia
Please answer!! i need help so bad. please!!!
The purple kernel is dominant over the yellow kernel and hence it has the genotype of homozygous dominant PP.
What is Genotype?Genotype may be defined as the ultimate combination of alleles of genes that are selected for specific studies.
If it has some offspring with purple kernels and some with yellow, the genotypes of the two parents are heterozygous dominant for the purple kernel, i.e. Pp and Pp.
And when these two parents are crossed with each other, the genotypes are PP, Pp, Pp, and pp. While the genotypic ratio is 1:2:1 (PP: Pp: pp), but the phenotypic ratio is 3:1 (Purple: Yellow).
Therefore, it is well described above.
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Evaluate the biodiversity of the two ecosystems present below.
Ecosystem A: 100 organisms are present, consisting of 25 different species. The species are evenly distributed.
Ecosystem B: 100 organisms are present, consisting of 10 different species. One of the species accounts for 80% of the organisms present.
Which ecosystem has the higher biodiversity?
Answer:
A
Explanation:
A more diversity by the amount of species and even distribution of said species.
__ is a renewable form of energy that comes from plants
Answer:
Biomass
Explanation:
In most cases, it is organic waste. anything, including pig intestines, maize husks, and wood chips. The procedure can vary depending on what is burned specifically, but in a typical power plant arrangement, it is burned similarly to coal. Pollution (even if it is carbon neutral) and the plant's potential for intermittent feedstock supply, which reduces efficiency, are downsides. either carbon neutral or renewable In my opinion, it is renewable by definition. Although it is not carbon neutral, very little else is either. Solar and wind energy still have a carbon impact. Those still have a net gain even though they offset more carbon than their footprint (per current manufacturing). Although burning biomass has a positive carbon footprint, is it more carbon-neutral than burning coal and natural gas? Maybe. Burning biomass releases carbon dioxide into the atmosphere that has previously been stored. Through feedback processes, this sudden rise in carbon will lead to an increase in other GHGs. Cutting down young trees for this reason also eliminates a carbon sink, which doesn't replenish until 60+ years (or 100+ in certain cases). Other biomass sources have a quicker recovery time. It is possible for biomass to be net negative when combined with carbon capture. Its efficiency might be increased by using it directly for heating purposes. There are several factors to take into account while deciding whether to utilize it, such as which other sources it would actually counteract. Overall, it should be used sparingly and with continual consideration of the particulars.
Which of the following statements about plants during the Paleozoic era are correct?
A. Very few plants grew during the Paleozoic Era.
B. Only small flowering plants have been found in the Paleozoic Era.
C. Large tree ferns grew well during the Paleozoic Era.
D. All of the choices are correct
Answer:
C. Large tree ferns grew well during the Paleozoic Era.
how is information conveyed from one place to another? class 4
Answer:
Nervous tissue is made up of neurons that receive and conduct impulses. Neurons are highly specialised for being stimulated and then transmitting the stimulus very rapidly from one place to another within the body. Impulses are the passage of electrical activity along the axon of a nerve cell.
what role we can play to manage solid waste
Hello!
To manage solid waste, the steps we can take are :
Do not burn your waste materialsSegregate your waste into biodegradable and non-biodegradable materials.Reuse peeled fruits and vegetables as fertilizer.Recycle your biodegradable materials into usable onesIf you use plastic grocery bags, reuse them for your small trash.Buy products that are organic like food, soap, and detergent.Do not throw your waste in the streets, dispose properly.When going to market, use reusable bags, or eco-bags.Old clothes can be used as rags.Minimize the use of plastic in any occasion.Answer:
Don’t throw chocolate, biscuit, ice cream, and other fast-food material wrappers on roads or in open spaces. Keep them in the pocket and put them in a specific bucket later on.
As alternatives to plastic bags, we can use cloth bags made of household material. i.e old strains, curtain material, bed sheets, etc.
Avoid the Avoid use of tissue paper instead of using your napkin.
Social Awareness programs can be organized programs communication ,schools and colleges.
To encourage the citizens to participate in waste management.
Don’t throw chocolate, biscuit, ice cream, and other fast-food material wrappers on roads or in open spaces. Keep them in the pocket and put them in a specific bucket later on.
As alternatives to plastic bags, we can use cloth bags made of household material. i.e old strains, curtain material, bed sheets, etc.
Avoid the use of tissue paper; instead, use your napkin.
Social Awareness programs can be organized in communities, schools, and colleges.
To encourage the citizens to participate in waste management.
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How do limiting factors determine the carrying capacity of an ecosystem?Why is sod valuable? a. loses fertility c. prevents soil erosion b. loses topsoil d. causes soil erosion
Limiting factors affect the carrying capacity by limiting available resources and regulating population sizes. Sod is valuable because it prevents soil erosion. Option C.
How limiting factors affect the carrying capacity?
The carrying capacity is the capability of the environment to support a growing population. It might be affected by different factors, known as limiting factors.
Limiting factors might depend on population density or be density-independent.
Density-dependent factors → depend on the population size → intra- and interspecific competition or predation.These factors are related to the interaction between populations and species. They might compete for resources (in which case resources become limited, affecting population sizes) or might establish a predator-prey relationship (in which case, predators and prey depend on each other and regulate their population size).
Density-independent factors → do not depend on the population size → Human impact or natural disasters (fires, volcanic eruptions, flooding).
Density-independent factors cause damage to the ecosystems, reducing the available resources such as food, water, or shelter and consequently decreasing the number of individuals. These factors reduce the carrying capacity of the environment.
In both cases, limiting factors regulate population size.
What is erosion?Erosion is the fertile soil loss process that leads to its degradation. It is due to several external agents that damage the ground and drag the exposed material from the superficial layers.
All the erosive agents act together, altering the soil composition, shape, and structure.
Some erosive agents are water, wind, ice, gravity, and animal trampling.
The loss of natural plant cover aggravates the erosive effects since no plants are protecting the soil.
Soil plant cover reduces erosion because the aerial part of the plant protects the surface, while roots protect the ground structure and absorb water.
Several grass species develop large roots to establish themselves on the ground. This characteristic helps to reduce erosion and to keep soil humidity.
In conclusion,
Limiting factors regulate population size.Plant cover avoids erosion. So, the correct option is C. Sod is valuable because it prevents soil erosion.You can learn more about erosion and limiting factors at
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In photosynthesis, water and carbon dioxide become
oxygen and carbohydrates, in the presence of light.
light, in the presence of oxygen and carbohydrates
light and oxygen, in the presence of carbohydrates
carbohydrates, in the presence of oxygen and light
Answer:
what is the question in this .........
What is the typical sign that appears in the early ambulatory stage of Duchenne Muscular Dystrophy
The typical sign that appears in the early ambulatory stage of Duchenne Muscular Dystrophy are:
Constant muscle weakness that begins from the proximal muscles and pelvis and then affects voluntary muscles,The child loss interest in running, falling, toe walking, etc.Growing impairment with ADLs and mobility start around age 5 and unable to ambulate follows.what is the early ambulatory DMD?
The early ambulatory DMD is the first thing that happens or that shows when a patient have symptoms of the above.
It is known to be the waddling gait, Gowers' sign, and it is one where the person might toe walking, and constant struggle when climbing the stairs.
Fat digestion relies on which accessory organs
Fat digestion relies on which accessory organ is the Liver.
What is the feature of the accent organs of digestion?Accent organs of digestion are organs that secrete materials wanted for the chemical digestion of meals but through which food does now not truly pass as it is digested. besides the liver, the important accessory organs of digestion are the gallbladder and pancreas.
Accent digestive organs or systems aid digestion physically and convey secretions that break down foodstuff inside the Gastrointestinal tract.
The organs that help in digestion include the teeth, tongue, gallbladder, salivary glands, liver, and pancreas.
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Match each biodiversity restoration method to its description.
tiles
reforestation
biological augmentation
bioremediation
Chart
using plants to control a native plant population
using plants to absorb harmful compounds
using plants to increase biodiversity and food resources
Match each biodiversity restoration method to its description we have:
reforestation: using plants to increase biodiversity and food resourcesbiological augmentation: using plants to control a native plant populationbioremediation: using plants to absorb harmful compounds. What are ecological restoration techniques?Some examples of induced ecological restoration methodologies are the conduction of natural regeneration, nucleation techniques, enrichment or diversity planting, among others.
In this case, the ecological restoration techniques are:
reforestation: using plants to increase biodiversity and food resourcesbiological augmentation: using plants to control a native plant populationbioremediation: using plants to absorb harmful compounds.See more about ecological restoration at brainly.com/question/1331136
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List at least 10 ways to maintain health care at home / community.
10 strategies for sustaining home or community-based healthcare are: consuming proper foods, maintaining a balanced diet, avoiding smoking and consuming alcohol, exercising on regular basis, taking necessary calories, Checking the blood pressure and other blood components on a routine basis, and using a mask or protection to prevent disease spread, and wash hands properly, maintain cleanliness in and outside the apartment, drink plenty of safe water.
Discussion about the strategies:
Consume a variety of foods, such as fruits, vegetables, legumes, nuts, and whole grains for healthcare.Limit your daily salt consumption to 5g, or roughly 1 teaspoon. It is simpler to do this by choosing low-sodium foods and by reducing the amount of salt, soy sauce, fish sauce, and other high-sodium condiments you use while cooking meals, removing salt from your meal table, avoiding salty snacks, and removing salt, spices, and condiments from your meal table.Less than 30% of our entire calorie consumption should come from fats. Necessary calories should be taken.There is no recommended safe amount of alcohol consumption. So, stay away from alcohol.The term "physical activity" refers to any skeletal muscle-driven movement that involves the use of energy. So, get moving.One term for high blood pressure is "silent killer". This is due to the fact that many people with hypertension could not be conscious of the issue as it might not show any symptoms. So be sure to check your blood pressure often.When you start to cough or sneeze, make sure your mouth is covered with a face shield or a tissue, and then dispose of it safely.Use bug repellent and dress in light-colored, long-sleeved shirts and slacks as a healthcare strategy. Use bed nets, door and window screens, and weekly cleanings to eliminate mosquito breeding grounds in your house.Take in a lot of clean water. Water-borne illnesses including typhoid, dysentery, hepatitis A, fever, and polio can spread through the use of contaminated water.The transmission of contagious diseases can be stopped by using clean hands. When the hands are obviously dirty, you should wash them by hand with soap and water or use an alcohol-based hand scrub.Learn more about healthcare here:
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One reason that multiple approaches are often taken to answer a testable question is that scientists
have different educational backgrounds and experiences.
want to determine the single best way to find an answer.
often look for the quickest way to answer the question.
get tired of using the same approach every single time.
A testable question uses multiple approaches as the scientists have different educational backgrounds and experiences. Thus, option A is correct.
What is a testable question?A testable question is a problem that can be answered and solved with the help of experimental design and through research studies. It uses the test and variables to compare the result of the experiment with the control group.
It uses multiple approaches to conclude the testable question as the scientists involved may be from various educational backgrounds and differs in experience over the subject work.
Therefore, multiple approaches are used to solve the testable question.
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What is not one of the four key postulates from Charles Darwin's idea of evolution by natural selection?
Individuals within a species vary in their traits
Some of these variations are passed on to offspring
In every generation, more offspring are produced that can survive
The survival and reproduction of individuals are random
Answer:
the survival an reproduction are random
Read the excerpt from Studies of Trees, by Jacob Levison.
The pines are widely distributed throughout the Northern Hemisphere, and include about 80 distinct species
with over 600 varieties. The species enumerated here are especially common in the eastern part of the United
States, growing either native in the forest or under cultivation in the parks. The pines form a very important
class of timber trees, and produce beautiful effects when planted in groups in the parks.
Which strategy does the author use in his choice of language to convey his message?
• facts and statements
© sequence of events
© conclusive evidence
• persuasive influence
Answer:
Gentle souls are often disguised by rough exterior
Explanation: