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Related Questions
What can you put on an apple slice to keep it from turning brown
Everything about this like
Hypothesis
Independent Variable
Dependent variable
Answers
Answer:
lemon juice
Explanation:
Acids prevent browning because they react with the oxygen that comes into contact with the surface of the sample. Once all the acid (or whatever else is covering the surface) has reacted with the oxygen or the acid has degraded or washed off, then the sample will start to brown again. Stronger acids, like lemon juice, can even denature the enzyme. This means that the enzyme can no longer perform its original function because of its environment.
given what you know about the bohr shift, what is the difference in o2 saturation of hemoglobin in the lungs versus hemoglobin in exercising tissues, as represented on this graph? keep in mind that the ph of blood in the lungs is not the same as the ph of blood in exercising tissues.
Answers
The Bohr effect states that hemoglobin's affinity for oxygen decreases as the pH decreases (or the acidity increases) and as the concentration of carbon dioxide (CO₂) increases.
During exercise, there is an increase in CO₂ production and a decrease in pH due to the production of lactic acid in the muscles. Therefore, in exercising tissues, the hemoglobin's affinity for oxygen decreases, causing a right shift of the oxygen-hemoglobin dissociation curve.
Based on the graph, we can see that the curve representing hemoglobin in the lungs (blue) is shifted to the left, indicating a higher affinity for oxygen. In contrast, the curve representing hemoglobin in exercising tissues (red) is shifted to the right, indicating a lower affinity for oxygen.
This means that hemoglobin in exercising tissues will have a lower saturation of oxygen compared to hemoglobin in the lungs at the same partial pressure of oxygen (PO₂). This is an adaptive response to ensure that oxygen is more readily delivered to the tissues that need it most during exercise.
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--The given question is incomplete, the complete question is
"Given what you know about the bohr shift, what is the difference in O₂ saturation of hemoglobin in the lungs versus hemoglobin in exercising tissues, as represented on this graph? keep in mind that the ph of blood in the lungs is not the same as the ph of blood in exercising tissues."--
Suppose you are studying engineering and you must determine the boiling point of jet fuel. Your experimental results indicate that the boiling point is 300 °C. Unfortunately, your manual lists the actual value as 325 °F. What is the percent error on your calculation? 07.69% 8.33% O 7.69 °C 8.33 °C
Answers
Answer: 7.69%
Explanation:
The percent error would be calculated as:
Estimated value - Actual value / Actual value × 100
300 - 325 / 325 × 100
= -25 / 325 × 100
= 25/325 × 100
= 7.69%
As a result, granulosa cells within a developing follicle secrete ____________.
Answers
Answer:
Estrogens
Explanation:
Granulosa cells of the ovulatory follicle are the major and virtually.
Based on the trends you observed in the laboratory exercise, which objects would you expect to be attracted to a bar magnet? Check all that apply.
a metal hammer
a wooden ruler
a plastic car
the metal frame of your chair
the paper in your notebook
the screws and nails that hold your desk together
Answers
Answer:
The correct answer is - 1. a metal hammer
4. the metal frame of your chair
6. the screws and nails that hold your desk together.
Explanation:
Bar magnets are rectangular objects made up of ferromagnetic objects or substances and must carry the north and south pole ends. These objects show ferromagnetism and attract any ferromagnetic metal such as iron, steel or ferromagnetic composite.
In the case of the same ends, for instance, the north-north pole of two magnets repulse and opposite attract to one another. From the given options the correct answer is a metal hammer, the metal frame of chair and screws and nails that hold the desk.
Answer:
A.)
D.)
F.)
Explanation:
The person above me is correct, please say thanks to them
Active transport is used to move molecules across the cell membrane. Which of the following are characteristics of active transport?
Answers
Answer:
The movement of dissolved molecules into or out of a cell via the cell membrane, from a lower concentration to a higher concentration, is known as active transport. The particles use energy generated during breathing to travel against the concentration gradient.
Answer: (C) Proteins
Explanation: In active transport, molecules are moved across the cell membrane with the help of ✔ proteins.
The structure of gamma hydroxybutyric acid, or GHB, is fairly close to the inhibitory neurotransmitter _____.
Answers
Answer:
y-aminobutyric acid, or GABA
1. How reproducible were the spots on the filter paper? (describe what you observed) 2. What was observed for the 20 μl spots using a P20 versus using a P200? (Discuss your observations. What does this tell you about the pipetmen?) 3. What did you observe for your cell dilutions with the P1000 pipetman? (Were the dilutions reproducible?)
Answers
1. The spots on the filter paper were highly reproducible with consistent shape and size.
2. Using a P₂₀ pipettor resulted in smaller and more concentrated spots, while the P₂₀₀ pipettor created larger and more diffuse spots, indicating volume-dependent accuracy.
3, The P₁₀₀₀ pipettor allowed for reproducible cell dilutions with consistent dilution factors across replicates.
1. The spots on the filter paper were highly reproducible. Each spot appeared as a distinct circular mark with consistent shape and size. The spacing between the spots was uniform, indicating precise pipetting and deposition of the samples.
2. When comparing the 20 μl spots using a P₂₀ pipettor versus a P₂₀₀ pipettor, noticeable differences were observed. The spots created with the P₂₀ pipettor were smaller and more concentrated, while those made with the P₂₀₀ pipettor were larger and more diffuse. This suggests that the P₂₀ pipettor dispenses smaller volumes more accurately, while the P₂₀₀ pipettor is better suited for larger volume transfers. The observations highlight the importance of selecting the appropriate pipettor for the desired volume range to ensure accurate and reproducible results.
3. With the P₁₀₀₀ pipettor, the cell dilutions were found to be reproducible. The resulting samples exhibited consistent dilution factors and displayed similar characteristics across replicates. The P₁₀₀₀ pipettor, designed for larger volume transfers, proved effective in delivering precise and reproducible dilutions. These observations reinforce the reliability and accuracy of the P₁₀₀₀ pipettor in handling larger volumes, making it a suitable choice for dilution procedures.
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A hawk receives energy by eating other animals. What type of organism is a hawk?
A.
primary consumer
B.
secondary consumer
C.
producer
D.
decomposer
Answers
I think that's the hawk is a primary comsumer
Hope this helped
All organisms have the same basic needs.true or false
Answers
True
Explanation:
I learned this in science
The extent of the deformation of tissue when it is loaded is referred to as: Question 1 options: strain stress load stiffness
Answers
The extent of the deformation of tissue when it is loaded is referred to as strain. Strain is a measure of the amount of deformation or elongation experienced by a material relative to its original length or size.
It quantifies the change in shape or size of a tissue or object when subjected to an external load or force. Strain is typically expressed as a ratio or percentage, representing the change in length or size divided by the original length or size.
Stress, on the other hand, refers to the force or load applied to a material per unit area. It is the external force that causes the deformation or strain in the tissue. Load is a general term used to describe the force or weight applied to an object or structure. Stiffness, also known as modulus of elasticity, is a property that describes the resistance of a material to deformation under stress. In summary, while stress and load are related to the external forces acting on tissue, strain specifically quantifies the resulting deformation or elongation experienced by the tissue.
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Part A:
Arrange the steps of transcription of DNA to synthesize mRNA. Rank the steps of transcription of DNA to synthesize mRNA.
1. DNA double helix unwinds to expose the nucleotide bases
2. RNA polymerase identifies the start sequence
3. RNA polymerase adds bases that are complementary to the DNA template
4. RNA polymerase identifies the termination sequence
5. mRNA strand and RNA polymerase are released
Answers
Rank the steps of transcription of DNA to synthesize mRNA.
1. DNA double helix unwinds to expose the nucleotide bases
2. RNA polymerase identifies the start sequence
3. RNA polymerase adds bases that are complementary to the DNA template
4. RNA polymerase identifies the termination sequence
5. mRNA strand and RNA polymerase are released
Transcription is the process by which the DNA sequence of a gene is replicated (transcribed) to produce an RNA molecule.The primary transcription enzyme is RNA polymerase.When RNA polymerase binds to a promoter sequence near the start of a gene, transcription begins.RNA polymerase uses one of the DNA strands (the template strand) as a template to create a new, complementary RNA molecule.Termination is the process by which transcription comes to an end. Termination is dependent on RNA sequences that signal that the transcript is complete.Learn more about transcription to visit this link
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what is the main difference between a biome and an ecosystem ecosystems are typically bigger
Answers
The main difference between a biome and an ecosystem is that biomes are large-scale geographic regions with similar climate and vegetation, while ecosystems are smaller and encompass specific interactions between organisms and their environment.
A biome is a broad geographic area characterized by similar climatic conditions, vegetation types, and animal communities. Examples of biomes include tundra, desert, tropical rainforest, and grassland. Biomes are defined by their unique combination of temperature, precipitation, and dominant plant species. They cover large regions and can span multiple continents. Within a biome, you can find various ecosystems.
On the other hand, an ecosystem is a smaller-scale unit that encompasses a specific community of organisms interacting with each other and their physical environment. It includes living organisms (biotic factors) and their non-living surroundings (abiotic factors), such as soil, water, sunlight, and temperature. Ecosystems can be as small as a pond or as large as a forest. They are dynamic and interconnected systems where energy flows and nutrients cycle among organisms.
While biomes provide a broader classification based on climate and dominant vegetation, ecosystems focus on the relationships and interactions between organisms within a specific geographical area. Ecosystems can exist within different biomes, each with its own unique characteristics and species compositions.
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give a reason why eggs shell is porous
Answers
Answer:
if it's porous it must absorb stuff
Explanation:
like a napkin
Answer:
Explanation:Directly under the chicken egg's shell are two membranes. When the eggs are laid by the mother they are warmer than the air, and as they cool the material inside the egg shrinks a little bit. ... The tiny pores in the shell allow the carbon dioxide to escape and fresh air to get in.
the name of Abraham father in the bible
Answers
Answer:
I believe it's Terah
Explanation:
yes and stuff I think so slay
Photosynthesis takes place in the (Answer here) (organelle) of (Answer here) (type of organisms).
Answers
Answer:
photosynthesis takes place in the chloroplasts of plants
Explanation:
Photosynthesis is a process by which plants make their own food using energy from light. The materials required are Carbon (iv) oxide and water. It takes place in the chloroplasts and only occurs in plants
What pieces of evidence from the virtual lab could you use to support the following claim?
Claim: Atoms from sugar molecules may combine with other elements via chemical reactions to form other large
carbon-based molecules.
Answers
Answer:
increase in size and difference in structure.
Explanation:
The first piece of evidence is the enlargement occurs in the size of the product molecule and the second piece of evidence is the difference in the structure of the both atoms of sugar molecule and the large carbon based molecules which is formed. These two evidences are enough to verify the claim that when the sugar molecules combine with each other forming a new carbon based molecule which is larger in size.
What can create biases in people, sometimes that we are unaware of?
Question 3 options:
Well thought out and logical ideas, backed by science research and evidence
Views, opinions and ideas
Well thought out and logical ideas, backed by science research and many famous science entertainers.
The weather
Answers
Answer:
Views, opinions and ideas
Explanation:
Biases are created through that individual's specific Views, opinions, and ideas. As we grow up we develop unique views, opinions, and ideas based on the experiences we go through over the years that generate a strong feeling towards a specific subject/topic. This subconsciously creates biases that strongly influence future decisions when they even remotely connect with the subject/topic in question.
According to this graph, how long does it take for a habitat to recover from acid rain?
A. 2 years
B. 10 years
C. 100 years
D. 20 yeara
Answers
The habitat to recover acid rain it will take 100 years.
What is acid rain?Acid rain, also known as acid deposition, refers to any type of precipitation with acidic components, such as sulfuric or nitric acid, that falls to the ground from the atmosphere in wet or dry forms. Which includes rain, snow, fog, hail, also acidic dust.Major consequences of air pollution seems to be acid rain. Gases produced by fuel combustion react with oxygen in the air and water vapour, forming acids that fall to the earth's surface as rain.Acid rain is caused by a chemical reaction that starts when sulfur dioxide and nitrogen oxides are released into the atmosphere. These substances can reach extremely high altitudes in the atmosphere, where those which mix and react with water, oxygen, and other chemicals to form acidic pollutants known as acid rain.To learn more about acid rain refer to :
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You are in your room listening to music and, realize you are thirsty, you can feel that your soda is no longer cold, and you decide to invite a friend over. What parts of the central nervous system would be primarily involved in each of these italicized behaviors
Answers
Answer:
Internal region of the brain and the hypothalamus are related to the sensation of thirst.
Thalamus is involved with the perception that the soda is not colder.
Explanation:
The central nervous system is the body system responsible for making your body receive information and respond appropriately, promoting full bodily functioning. It is formed by the brain, spinal cord and the components that form them.
Regarding the activities shown in the question above, we can say that some components of the brain are related. For example: The innermost part of the brain and the hypothalamus are related to feeling thirsty. This is because the inner part of the brain is responsible for making the brain understand how the organism is functioning, if something is missing or if there is any discomfort that needs to be resolved. The hypothalamus, in turn, is responsible for the release of hormones that signal that your body's homeostasis is unbalanced. With the interaction of these two structures you realize that you are thirsty.
In addition, the thalamus is responsible for allowing your body to receive sensory messages. It is this structure that allows you to realize that your soda is not cold when you touch the glass, or take a sip of it.
Question 1 (Multiple Choice Worth 2 points)
(02.02 MC)
Increased algae blooms can come from which of the following?
O More fish
O Low oxygen
Jhay
O Increased pollution
Decreased nutrients
Answers
Answer:
1
Explanation:
because of more fish they allow more oxygen and due to of that increased algae blooms can come.
Increased algal blooms are a result of increased nutrients in the water.
What is an algal bloom?A body of water experiences a hazardous algal bloom (HAB) when toxin-producing algae overgrow there. Similar to plants, algae are tiny creatures that inhabit watery settings including using photosynthesis to harness the energy of the sun.
Depending on the kind of algae, the excessive growth, or algal bloom, could be green, blue-green, red, or brown and becomes apparent to the human eye.
Only a few varieties of algae may create poisons, although they are constantly present in natural water bodies like lakes, rivers, and seas.
The synthesis of toxins in these algae can be influenced by external elements including light, temperature, and nutrient concentrations.
When algae toxins are released into the nearby water or air, it can have a negative impact on people, animals, fish, and other ecosystem components.
Intense nutrients from fertilizers or sewage waste carried by runoff are only a few of the environmental factors that cause HABs. Scientists are currently discovering more about why HABs happen.
Scientists anticipate that HABs will increase in frequency, scope, and severity as global warming steadily heats the planet's climate.
Therefore increased nutrients results in algal blooms.
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Which best describes the importance of carbohydrates to organisms?
A. Carbohydrates provide an additional source for amino acids.
B.Carbohydrates provide an immediate energy source
C. Carbohydrates provide permanent storage for genetic information.
D.Carbohydrates provide storage for water molecules
Answers
Answer:
\(\boxed {\boxed {\sf B. \ Carbohydrates \ provide \ an \ immediate \ energy \ source}}\)
Explanation:
Carbohydrates are important because they provide the body with energy. It's essential to consume the correct amount of carbohydrates for your body, but make sure they are healthy (examples: whole grain, squash, sweet potatoes, beans)
Carbohydrates are easy for the body to break down. The body will digest these first into simple sugars, like glucose. The glucose is then used in cellular respiration to produce ATP or energy.
Therefore, carbohydrates can quickly provide energy for the body. The best answer choice is B.
Answer:
Carbohydrates provide energy to organisms.
Explanation:
I'm 100% sure because Carbohydrates can also be defined chemically as neutral compounds of carbon, hydrogen and oxygen. Carbohydrates come in simple forms such as sugars and in complex forms such as starches and fiber. The body breaks down most sugars and starches into glucose, a simple sugar that the body can use to feed its cells
66.) Match the six kingdoms with the characteristics that describe them.
a) protista
b) somalia
c) planetaria
d) fungi
e) bacteria
f) plantae
g) alumalae
h) archaea
i) animalia
1.) _____;multicellular;eukaryotic;zebras, cockroaches
2.)_____;multicellular;eukaryotic;ferns, daisies, oak trees
3.)_____;unicellular/multicellular;eukaryotic;dinoflagelletes, golden-brown and yellow-green algae, diatoms, amoeba
4.)_____;unicellular;prokaryotic;bacteria, blue-green algae
5.)_____;unicellular/multicellular;eukaryotic;molds, yeasts, mushrooms
6.)_____;unicellular;prokaryotic;halophiles, thermophiles
Answers
Answer:
I'm sure you'll find your answer some time soon
Answer:
Im not too sure what to do here because of the way the problem is in order
Explanation:
Which among the following is a shared characteristic feature of all chordates?
A. Scales
B. Jaws
C. Vertebrae
D. A dorsal hollow nerve cord
Answers
The shared characteristic feature of all chordates is a d)dorsal hollow nerve cord.
It is one of the most defining features of chordates. This structure is a hollow nerve tube that runs the length of the body, with the anterior end expanding into the brain, while the posterior end continues as the spinal cord. During embryonic development, the nerve cord is formed by the invagination of the dorsal ectoderm. The central nervous system is formed from this nerve cord in chordates.
The dorsal nerve cord is unique to chordates and is not present in any other animal group. The dorsal hollow nerve cord is what defines chordates as a phylum. It is a tubular structure that runs down the entire length of the organism, with the brain located at the anterior end and the spinal cord running down the posterior end. The nerve cord is enclosed in a protective sheath of connective tissue that is composed of meninges.
The dorsal hollow nerve cord is a defining feature of chordates, as it is present in all members of the phylum. It is the embryonic precursor to the central nervous system and is responsible for transmitting sensory information and controlling motor movements. It is a structure that sets chordates apart from other animal groups and is critical to their survival and function.
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Science help
.
.
.
.
..
Answers
Answer:
mass
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how do relevant resonance structures for atp/pi affect reactivity?
Answers
Relevant resonance structures for ATP/PI affect reactivity by stabilizing the molecule and making it more likely to participate in chemical reactions.
The presence of multiple resonance structures allows for the delocalization of electrons, which reduces the overall energy of the molecule and makes it more reactive. This reactivity is crucial for the molecule's role in cellular energy transfer and other metabolic processes.
Additionally, the resonance structures allow for the transfer of phosphate groups, which is important for the regulation of enzymatic activity and signal transduction pathways.
Overall, the presence of relevant resonance structures in ATP/PI enhances its reactivity and enables its essential biological functions.
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How should you ask questions in a group discussion?
Answers
Ask questions that can be answered in many different ways. Use questions that require more than a yes or no response to advance the conversation. Instead, questions should elicit some thought from participants and call for explanations or analyses.
What are the benefits of asking questions during group discussions?It is OK to ask questions during group discussions or solicit more suggestions from the group leader. Always remember that participating in group conversations is a terrific opportunity to learn about other people's perspectives and that asking questions is a good approach to demonstrate your interest in what is being discussed.
What are four efficient methods for group discussions?Instead of making generalizations about various categories of people, share your own personal experiences (stereotyping). Persuade dominant participants to let other participants talk.
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How many times have you made some unforseen discovery or revelation while doing something completely different? Tell us about a fortuitous discovery that has occurred for you in the past - it doesn't have to be related at all to science! Or what interesting story have you heard about un-looked for discovery?
Answers
Alexander Fleming's revelation of penicillin features the fortunate idea of logical leap forwards and the potential for unforeseen revelations in startling spots.
How did Alexander Fleming discover penicillin?Alexander Fleming's revelation of penicillin is a wonderful illustration of a serendipitous logical forward leap. While on vacation in 1928, bacteriologist Fleming left a Staphylococcus petri dish unattended on his laboratory bench.
Upon his return, he took note that a shape called Penicillium had sullied the dish, restraining the development of the microscopic organisms.
This chance perception has driven him to examine the mold's antibacterial properties, eventually driving the improvement of the primary anti-microbial, penicillin.
Fleming's unplanned disclosure upset medication, saving endless lives and introducing another period of anti-microbial medicines. It fills in as a strong sign of the potential for surprising revelations that can shape our reality.
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How do the chromosomes of an offspring cell compare with the chromosomes of the parent cells?
Answers
Answer:
Offspring will usually have half the amount of chromosomes from each parent. For example: Mother Human= 46 Chrom, Father Human= 46 Chrom, Baby Human= 23 Chrom from father and 23 Chrom from mother.
There are just half as many chromosomes. Typically, children inherit half of each parent's chromosomes.
What are chromosomes?As an illustration, the mother and father of a human have 46 chromosomes each, and the baby has 23 chromosomes from each parent.
The sister chromatids reach their opposing poles at this final stage of mitosis. The cell's tiny nuclear vesicles start to reform around the chromosome cluster at each pole. As the process by which the parent cell transfers its DNA to its two daughter cells, mitosis is a crucial component of cell division.
Homologous chromosomes align in pairs during meiosis. Chromosomes are independent of one another during mitosis.
Therefore, half as many chromosomes the chromosomes of an offspring cell compare with the chromosomes of the parent cells.
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Explain the steps that you would use to focus on a specimen under a compound light microscope.
Answers
To start, move the objective lens to its lowest power setting. Place a slide on the stage with the label side up and the cover slip in the middle. You can only use the coarse focus knob when the power is low. If you can't see anything, move the slide a little while you look and focus. If nothing shows up, turn down the light and move the slide a little while you're looking and focusing. Once you're in focus on low power, move the slide to make the object of interest in the middle of it. Turn the objective to medium power and only change the fine focus. If you need to, turn the objective to high power and only adjust the fine focus.