Answers
The hottest stars tend to appear blue or blue-white, whereas the coolest stars are red. A color index of a star is the difference in the magnitudes measured at any two wavelengths and is one way that astronomers measure and express the temperature of stars
Related Questions
carbonic anhydrase is an enzyme that is found in red blood cells. what do you think is the ideal temperature and ph for carbonic anhydrase? why?
Answers
Carbonic anhydrase is an enzyme was found to be active between the pH ranges of 4.5 to 9.5, with 7.5 being the ideal value. It was active between 20 and 60 degrees Celsius, and 37 degrees Celsius was the ideal temperature.
In this investigation, carbonic anhydrase (CA) was isolated from the plasma membrane of bovine erythrocytes. Young animal blood was drawn for this purpose, and after hemolyzing it, the membrane fraction was isolated and repeatedly cleaned. With buffered TritonX-100 (1%), the enzyme (CA) was extracted from the membrane. Affinity chromatography allowed for a factor of 22.8 greater purification of the enzyme. The CA extracted from the erythrocyte membrane exhibits both esterase and hydratase activity. For the substrate (p-nitrophenyl acetate), the enzyme's Vmax and Km values are 1.948x10(-3) mM/L x dak and 3.596 mM, respectively. The enzyme's level of purification was monitored using SDS-PAGE (3–10), which revealed two different bands.It was found that the enzyme functioned best at a pH of 7.5 and that it was active between the pH ranges of 4.5 to 9.5. It demonstrated activity between 20 and 60 degrees Celsius, with 37 degrees Celsius being the ideal temperature. According to gel filtration, the molecular weight of CA is 29844 and 61706 Dalton. The enzyme was impacted by acetazolamide and sulfanilamide, though.
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Energy released by fusion in the Sun is initially in the form of
visible light
gamma rays
ultraviolet light
infrared radiation
Answers
Answer:
gamma rays
Explanation:
Energy released by fusion in the sun is initially in the form of gamma rays.
[A gamma ray designates the high frequency electromagnetic radiation of a photon whose wavelength is less than 1 picometer which corresponds to frequencies greater than 300 exahertz.]
Answer:
gamma rays
Explanation:
In diffusion, when the concetration of molecules is equal or even, this is called what? equality equilibrium unequality paralibrium
Answers
Answer: paralibrium
Explanation:
Which of the following is an artery commonly used to find a pulse?
Answers
Answer:
Radial artery was correct Edg
Explanation: Radial at the wrist is most common for quick pulse check
The Treg cell destroys the Tc or Th cell rather than the Cell presenting self antigen because the Treg cell needs to: destroy T cells with receptors that respond to self-antigen. avoid reacting itself to self-antigen passed along by the Cell presenting self-antigen. destroy the self antigen, and it must destroy the cell in order to do this. preserve the cell in the middle that is presenting self-antigen.
Answers
The three main subtypes of T- cells are helper T-cells, \(T_h\) and the cytotoxic T cells, \(T_c\), and regulatory T-cells, Treg
The correct option is; the Treg cell destroys the \(\mathbf{T_c}\) or \(\mathbf{T_h}\) cell rather than the cell presenting self antigen because the Treg cell needs to:
Destroy the T cells with receptors that respond to self antigen
The function of the regulatory T cells, Tregs cells is to regulate the other
immune system cells, thereby providing control of the immune system to
foreign particles and self antigens, and also block autoimmune disease
To prevent the mounting number of host organism attacks, the immune
cells that give self-antigen response are destroyed, therefore, the Treg cell
needs to destroy the T cells with receptors that respond to self-antigen,
thereby preventing autoimmune disease
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Part B
What are the advantages and disadvantages of using an egg to model
organelles in an animal cell?
Answers
Answer:
The advantages of using an egg to model organelles is that the egg looks like an organelle in an animal cell and pretty much acts like one too. Disadvantages of using the egg is that you may do the experiment wrong to make the egg act like one.
Explanation:
Hope this helped!! :3
According to scientific experimentation the advantages and disadvantages of using an egg to model organelles in an animal cell are:
The advantages are:
the egg resembles or appears like an organelle in an animal cell.the egg also acts or behaves like an organelle.The Disadvantages are:
The probability of experimenting wrongly is higher due to the researcher trying to make the egg behave like the organelle.
Hence, there are some vital advantages and disadvantages of using an egg to model organelles in an animal cell which every researcher must take note of.
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URGENT! 15 Points!
Answer questions 13-17 plz <3
Answers
identify the important molecules involved in cellular respiration. pls help me
Answers
species diversity, genetic diversity and habitat diversity are interlinked. explain the link between the different types of diversity
Answers
High genetic diversity increases the adaptability of species and causes speciation, therefore higher species diversity. High species diversity of plants indicates higher habitat diversity because plants are habitats for many species. High habitat diversity also increases the species diversity.
Genetic diversity is defined as the sum total of all the alleles in a population. More are the alleles more is the genetic diversity. High genetic diversity is necessary to resist diseases, changes in climate and other stresses.
Species diversity is the presence of various species in an ecosystem. The relative abundance is also considered in case of species diversity. When all the species are equally abundant then the diversity is highest.
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what are the characteristics of fungi??
Answers
Answer:
Some of the characteristics of fungi are it is a
- unicellular and multicellular
- has protective cell wall
- doesn't do photosynthesis
- has a nucleus to store DNA
When people save for retirement they frequently buy stocks and bonds. We call this _______ and it _____ directly increase the value of gdp.
Answers
When people save for retirement they frequently buy stocks and bonds. We call this investment and it can directly increase the value of GDP.
Retirement is actually understood to be the process of leaving a job, a profession, or one's active working life due to age or other causes. Age or other factors that may cause it are typically the reasons why people leave their active working years.
We can see from this that retirement is typically necessary in order for the retired person to enjoy his or her old age and have the freedom to engage in what they love doing at that age.
Companies issue shares that are valued daily and listed on a stock exchange. Bonds work more like loans, where the investor is the creditor.
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Which part of the 5 step strategic design process keeps the user at a center?
Answers
The second step of the 5 step strategic design process, which is "Empathize", is the part that keeps the user at the center of the design process.
Designers attempt to comprehend the wants, drives, and problems of the users they are designing for in this step. They use a variety of techniques to collect information, including user research, observation, interviews, and questionnaires. Gaining a thorough understanding of the viewpoints and experiences of the consumers will help designers create solutions that are suited to their individual requirements.
Designers are better able to provide goods, services, or experiences that are pertinent, beneficial, and appealing to the users they are intended to serve when they keep the user at the center of the design process throughout the Empathize step. This strategy may assist raise customer satisfaction, engagement, and loyalty levels, which may eventually help the product or service under development succeed.
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Goal
Investigate the optimal amount of foliage for the red, short furred slinquettes' population.
My Hypothesis
If I change the foliage so it increases, then the final number of slinquettes with red, short fur will increase.
My Analysis
Now that you have collected and analyzed your data, you will write an argument that explains how your experiment answers your question. There are three parts: claim, evidence, and reasoning.
hide data
My Evidence
Trial # Fur Color Mutation Fur Length Mutation Foliage Temperature Final Number of Slinquettes Red, Long Fur Final Number of Slinquettes Red, Short Fur Final Number of Slinquettes Green, Long Fur Final Number of Slinquettes Green, Short Fur
1
lots mild
not present
0
endangered
1
not present
0
not present
0
3
lots mild
not present
0
endangered
1
not present
0
not present
0
4
lots mild
not present
0
endangered
1
not present
0
not present
0
5
lots mild
not present
0
endangered
1
not present
0
not present
0
6
some mild
not present
0
surviving
6
not present
0
not present
0
7
lots mild
not present
0
endangered
1
not present
0
not present
0
8
some mild
not present
0
surviving
6
not present
0
not present
0
Claim
Write a sentence that states what you found out about the scientific question you just investigated. Provide enough detail so that a friend who did not do the experiment could learn from your description.
Evidence
Provide and describe scientific evidence from your data table that supports your written claim. Remember to provide enough detail so that a friend who did not do the experiment could learn from your description.
Reasoning
Explain why your evidence (what you wrote in Box 2) supports your claim (what you wrote in Box 1). Also, explain the scientific principles behind your reasoning. Remember to provide enough detail so that a friend who did not do the experiment could learn from your description
Answers
Answer:
Claim: Increasing the amount of foliage does not lead to an increase in the final number of slinquettes with red, short fur.
Evidence: The data table shows the results of eight trials where the amount of foliage was manipulated. In all trials, regardless of the amount of foliage (whether "lots" or "some"), the final number of slinquettes with red, short fur remained at 0. There were no instances where increasing the foliage resulted in an increase in the population of slinquettes with red, short fur.
Reasoning: The evidence from the data table supports the claim that increasing the amount of foliage does not lead to an increase in the final number of slinquettes with red, short fur. This suggests that the presence or absence of foliage does not have a significant impact on the population of slinquettes with red, short fur.
Based on the provided data, it is reasonable to infer that factors other than foliage, such as temperature, fur color mutation, and fur length mutation, may have a stronger influence on the population dynamics of slinquettes. These factors could be responsible for the observed patterns in the data.
It's important to note that the reasoning provided here is based solely on the given data and analysis. In a real scientific investigation, additional factors, experimental controls, and statistical analysis would be required to draw definitive conclusions.
Notice the progression of the green and blue dots over time. What statements below describe what is happening
Answers
Answer:
The blue and green molecules are small and polar and can diffuse through the lipid bilayer
Explanation:
The plasma membrane is made up of a double layer of phospholipids. This arrangement permits the movement of small polar molecules by diffusion. However, larger molecules or ions need to pass through membrane channels or be carried over by active transport.
Describe the changes you see in a microscope image when you go from a scanning objective to low
power to high power.
Answers
Why can mass bleaching wipe out the whole ecosystem
Answers
which of the following is an example of a gradient? which of the following is an example of a gradient? blood in the vessels move from lower pressures to higher pressures. pouring a vial of ink into a jug of water will evenly distribute throughout the water. sodium/potassium pumps in cells is a classic example. the channel uses atp to move sodium and potassium from low-concentrated regions to high-concentrated regions, respectively. increased levels of insulin will lead to a negative feedback loop that will reduce levels of insulin.
Answers
A gradient is a gradual slope from one point to another, and it is used to describe a variety of phenomena.
In biology, for example, gradients are used to describe the movement of molecules or fluids from areas of lower concentration to areas of higher concentration.
The third example, sodium/potassium pumps in cells, is a classic example of a gradient. The channel uses ATP to move sodium and potassium from low-concentrated regions to high-concentrated regions, respectively. This is an example of a concentration gradient, as the molecules are moving from a lower concentration to a higher concentration.
The fourth example, increased levels of insulin leading to a negative feedback loop that will reduce levels of insulin, is not an example of a gradient. Although it is a process of decreasing levels of insulin, it is not a gradient because it is not a gradual slope from one point to another.
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Make a claim about which organism(s) use carbon dioxide and which organisms) produced carbon dioxide. How did your test conditions affect the cycling of matter between plants and animals?
Evidence: Describe specific observations from your experiment to support your claim.
Reasoning: Did your observations support your claim? Describe, in detail, the connections between the evidence you gave and the claim you are making
Answers
Answer:
an organism is like a plant
Why do you seldom see fossils in metamorphic rocks?
Answers
Answer:
Metamorphic rocks have been put under great pressure, heated, squashed or stretched, and fossils do not usually survive these extreme conditions.
Explanation:
Fossils are found in metamorphic rocks because metamorphic rocks have been put under great pressure, heated, squashed or stretched, and fossils do not usually survive these extreme conditions.
What are metamorphic rocks?Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock is subjected to temperatures greater than 150 to 200 °C and, often, elevated pressure of 100 megapascals or more, causing profound physical or chemical changes.
Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form.
Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.
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When two statements are connected with the word and, the new statement is called a _____.
conditional
disjunction
converse
conjunction
Answers
Answer:
conjunction
Explanation:
BTW I know the whole picture wont show up but search up "Protein Synthesis Transcription and Translation picture"
Translate this mRNA code into an amino acid sequence. CAUUGC
1) Histidine,Cysteine
2) Proline, Leucine
3) Cysteine, Proline
4) Histidine, Leucine
Answers
Answer:
its 1.
Explanation:
i had a question similar to that one
I suggest use the condon charts in boxes
Even though most plants are angiosperms, gymnosperms still have an advantage in certain environments. In what type of environments are gymnosperms more successful than angiosperms
Answers
which of these statements accurately describes an mtoc in the cytoplasm of an undifferentiated cell?
Answers
MTOCs bind and stabilize the minus ends of microtubules. This statement accurately describes an MTOC in the cytoplasm of an undifferentiated cell.
MTOCs can be broadly defined as sites that locate microtubule minus ends with functions including microtubule nucleation, stabilization, and/or anchoring. The most well-studied MTOC is the centrosome, a non-membrane-bound organelle composed of two centrioles surrounded by a pericentriolar substance (PCM).
In animals, MTOCs form around two structures called centrosomes at the ends of the mitotic spindle. A network of proteins called pericentrosomal matter (PCM) forms around the centrosome, transforming it into her MTOC. PCM grows around the centrosome as the cell prepares to divide and is then removed.
Complete question:
Which of these statements accurately describes an mtoc in the cytoplasm of an undifferentiated cell?
a) MTOCs bind and stabilize the minus ends of microfilaments.
b) MTOCs bind and stabilize the plus ends of microtubules.
c) MTOCs bind and stabilize the plus ends of microfilaments.
d) MTOCs bind and stabilize the minus ends of microtubules.
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Hydraulic fracturing technology is used to produce nuclear power.
a. True
b. False
Answers
Answer:
False
Explanation:
What are two of the main factors that limit primary production in the epipelagic
Answers
Answer:
1) NUTRIENTS
2) LIGHT
Explanation:
So the two potential limiting factors in marine primary productivity are the availability of nutrients and light. Most phytoplankton stay near the surface to absorb red light.
neurotransmitters bind to , which are protein structures on the surface of the neuron cell membrane. a. neural receptors b. cell bodies
Answers
Neurotransmitters bind to neural receptors, which are protein structures on the surface of the neuron cell membrane.
What are neural receptors?Neural receptors are specialized cell receptors located in neurons or nerve cells that bind to chemical messengers (also called neurotransmitters) to trigger concomitant responses depending on the stimuli conditions.
In conclusion, neurotransmitters bind to neural receptors, which are protein structures on the surface of the neuron cell membrane.
Complete Question:
Fill in the blank. Neurotransmitters bind to ____, which are protein structures on the surface of the neuron cell membrane.
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Blank are organism that get their enegry from blank resources meaning they get their own food. These organism are called blank
Answers
Autotrophs are living things that produce their own food and obtain their energy from nonliving sources. The another name for these organisms is Producers.
Because organism eat producers or other consumers, heterotrophs are referred to as consumers. Humans, dogs, and birds are all instances of heterotrophs. In a food chain, a group of creatures that supply energy and nutrients to other organisms, heterotrophs occupy the second and third levels.
The two main ways that organisms obtain energy are through exposure to light or chemical oxidation. Autotrophic organisms, or producers, transform light or chemicals into energy-rich organic molecules starting with carbon dioxide, which has a low energy content (CO2). The other species, the heterotrophs, receive their energy from these autotrophs.
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Correct Question:
___ are organism that get their energy from blank resources meaning they get their own food. These organism are called _____.
The initial population of a bacteria colony is observed to be 500 bacteria. The population shows a growth rate of 50% per day, and the carrying capacity of the surrounding is estimated to be 2,000,000 bacteria. To the nearest whole number, find the population of bacteria after 15 days. A 165,822 bacteria B 622,707 bacteria C) 903,430 bacteria 2,000,000 bacteria
Answers
The population, to the nearest whole number, of bacteria after 15 days is approximately 4,769 bacteria, The correct option is E, None of the above.
To find the population of bacteria after 15 days, we can use the formula for exponential growth:
N = N₀ * \((1 + r)^t\)
Where: N = Final population after time t N₀ = Initial population r = Growth rate per time period t = Time period
Given: N₀ = 500 bacteria r = 50% per day (or 0.5) t = 15 days
Plugging in the values, we have:
N = 500 * \((1 + 0.5)^{15\)
Calculating this expression:
N = 500 * \((1.5)^{15\) N
= 500 * 9.537 N
= 4,768.5
Thus, the correct option is E, None of the above.
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The question is inappropriate; the correct question is:
The initial population of a bacterial colony is observed to be 500 bacteria. The population shows a growth rate of 50% per day, and the carrying capacity of the surrounding area is estimated to be 2,000,000 bacteria. To the nearest whole number, find the population of bacteria after 15 days.
A. 165,822 bacteria
B. 622,707 bacteria
C. 903,430 bacteria
D. 2,000,000 bacteria
E. None of the above
Figure 1 represents a segment of DNA. radiation can damage the nucleotides in a DNA molecule. to repair some types of damage, a single nucleotide can be removed from the DNA molecule and replaced with an undamaged nucleotide. which of the four labeled bonds in figure 1 could be broken to remove and replace the cytosine nucleotide without affecting the biological information coded to the DNA molecule?
Answers
Answer:
This question is incomplete as it lacks options; the options are:
A) Bond X only
B) Bond W only
C) Bonds Y and Z at the same time
D) Bonds W and Z at the same time
The answer is C. Bond Y and Z at the same time
Explanation:
A DNA molecule is a double-stranded molecule made up of nucleotide units. According to this question, radiation can damage the nucleotides in the DNA molecule. However, the cell can repair this DNA molecule by removing the single damaged nucleotide and replacing it with an undamaged one.
In this case, the cytosine nucleotide is the damaged nucleotide. To repair this DNA in the image, the covalent bond holding the one nucleotide to another in one of the DNA strands must be broken.
The sugar-phosphate bonds as represented by letters Y and Z are the bonds that could be broken to replace the cytosine nucleotide by an undamaged one, without affecting the biological information coded to the DNA molecule. The bonds holding the neighboring nucleotides are also broken during the repair process. Note that, this form of repair is called BASE EXCISION REPAIR
The bond in figure 1 could be broken to remove and replace the cytosine nucleotide without affecting the biological information coded to the DNA molecule is C. Both Bond Y and Z at the same time.
It should be noted that a DNA molecule is simply referred to as a double-stranded molecule that's made up of nucleotide units. Radiation can damage the nucleotides that are in the DNA molecule.
Through the removal of the single damaged nucleotide and then replacing it with an undamaged one, the DNA molecule can be repaired. Based on the diagram, the cytosine nucleotide is the damaged nucleotide, therefore, in order to repair it, the covalent bond that's holding the nucleotides together must be broken.
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1. A(n) blankis a stretch of dna consisting of an operator, a promoter, and genes for a related set of proteins, usually making up an entire metabolic pathway
Answers
An operon is a stretch of DNA consisting of an operator, a promoter, and genes for a related set of proteins, usually making up an entire metabolic pathway.
operon is a functional unit of gene.
This cluster of gene transcribed together to give a messenger RNA which further give rises to protein.
operator in operon is the site where repressor binds.
promoter is where Mrna binds , where our genes are transcribed
structural genes, they code for the enzyme that are involved in this metabolic pathway.
Operons have an important role to play as they produce protein for the cell this serves them energy, the protein is produced only when energy is required.
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