Which measure is not considered when measuring absolute magnitude?
Answers
The measure not considered when measuring absolute magnitude is the distance to the object.
Absolute magnitude is a measure of the intrinsic brightness of an astronomical object, such as a star or a galaxy. It quantifies the amount of light the object would emit if it were located at a standard distance of 10 parsecs (about 32.6 light-years) from the observer. By using absolute magnitude, astronomers can compare the true brightness of different celestial objects.
When determining absolute magnitude, other factors such as distance are not taken into account. This is because absolute magnitude focuses solely on the intrinsic brightness of the object, allowing for a standardized comparison among various celestial bodies. Distance is considered a separate parameter and is typically measured using other techniques, such as parallax or redshift. By isolating absolute magnitude from distance, astronomers can study the inherent properties of objects and make meaningful comparisons across different regions of space.
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Related Questions
These plants have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. There is one type of spore, and the gametophyte generation grows outside of the spore wall. Which plant or plants am I describing? (SELECT ALL THAT APPLY) 000000000 Ferns Cycads Selaginella Lycopodium Conifers Ginkgo Hornworts Mosses Angiosperms 3 pts Liverworts
Answers
The correct answers are: Ferns, Hornworts, Mosses, and Liverworts.
The plants that fit the given description are:
Ferns: Ferns have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. Ferns produce one type of spore, and the gametophyte generation grows outside of the spore wall.Horworts: Hornworts also have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. Hornworts produce one type of spore, and the gametophyte generation grows outside of the spore wall.Mosses: Mosses have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. Mosses produce one type of spore, and the gametophyte generation grows outside of the spore wall.Liverworts: Liverworts also have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. Liverworts produce one type of spore, and the gametophyte generation grows outside of the spore wall.Therefore, the correct answers are: Ferns, Hornworts, Mosses, and Liverworts.
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What is the correct order of levels of organization, from smallest to largest? a. organism → tissue → organ → organ system → cell b. organism → organ system → organ → tissue → cell c. cell → tissue → organ → organ system → organism d. cell → organ → organ system → organism → tissue
Answers
The correct order of levels of organization from smallest to largest is: (c) cell → tissue → organ → organ system → organism.
Levels of organization is the sequence of formation of a living body. The smallest structure is the single cell. Many cells combine together to form the tissue. Several tissues form an organ. And various organs form an organ system. A complete organism is composed of various organ systems.
Cell is the most basic unit of life. A cell can be prokaryotic or eukaryotic. The prokaryotic cells are the primitive types of cells with no true nucleus and cell organelles. Whereas eukaryotic cells have a well defined nucleus along with various cell organelles.
Therefore, the correct answer is option c.
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A pond contains many different types of organisms. The table below lists some of these organisms and their methods of reproduction
Answers
The organism that would most likely survive the change in their environment is Pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction. The correct option is A.
What is genetic variation?Genetic diversity enables an organism to evolve in a way that permits it to adapt to the current or changing environment. Since a Pantala flavescens reproduces sexually, it is the only organism in the group that has the capacity to genetically evolve and adapt to its environment.
All of the remaining creatures reproduce asexually, which results in a lack of internal variation and makes it difficult for them to adapt to changing environmental conditions.
Therefore, the correct option is A, Pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.
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The question is incomplete. Your most probably complete question is given below:
The pond slowly becomes more acidic due to the release of chemicals from a nearby factory. Which of the organisms would most likely
survive the change to their environment?
A.
Pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction
B.Hydra oligactis, because these organisms would have a low level of genetic variation due to sexual reproduction
c. Naegleria fowleri, because these organisms would have a high level of genetic variation due to asexual reproduction
D.Spirodela polyrhiza, because these organisms would have a low level of genetic variation due to asexual reproduction
If oxygen were to be studied instead of carbon, in what direction would oxygen go through a cycle?
a) plant to detritivore
b) plant to animal
c) animal to detritivore
d) animal to animal
Answers
Answer: The answer is b
explain what happen in osmosis in each petri dish
Answers
Which statement best describes an organ?
O A. This is the simplest level of organization of life.
O B. Different types of tissues work together to carry out a function.
C. This is the most complex level of organization of life.
O D. Cells of one type work together to carry out a function.
SUBMIT
Answers
Answer:
D................... or B sorry
Sorry I’m late
One of the largest and oldest organisms on earth is located in fish lake and nation, forest, in utah.pando is an 80,000 year old grove of aspen trees that cover 100 acres. Although it looks like a forest, DNA analysis of several of the trees has confirmed it is really just one huge organism. Therefore the trees must have been reproduced
Answers
Pando aspen grove in Utah is an immense, genetically identical organism consisting of interconnected aspen trees spanning 100 acres and estimated to be around 80,000 years old.
One of the largest and oldest organisms on Earth, known as Pando, is located in Fish Lake National Forest in Utah. Pando aspen grove is an 80,000-year-old grove of aspen trees that covers approximately 100 acres. While it appears to be a forest, DNA analysis of several of the trees has revealed that they are genetically identical, confirming that Pando is actually one immense organism. The trees of Pando have been reproduced through a process called vegetative reproduction, where new shoots and stems emerge from the existing root system. This unique reproductive strategy has allowed Pando to persist and expand over thousands of years, making it a remarkable example of the interconnectedness and longevity of living organisms.For more questions on Pando aspen grove:
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What would you need to do to your model to make it look like a true DNA molecule?
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What liquid was used to dilute the yogurt so it was easier to see the bacteria on the slide?
Answers
Yogurt is typically diluted with water before being used as a sample for microscopic examination. It is simpler to examine the bacteria and other yogurt ingredients under a microscope thanks to the water's assistance in separating and dispersing them. Yet occasionally, different liquids, including saline solution or buffer solutions, can also be utilized for this.
Under a microscope, how do you see the microorganisms in yogurt?Locate a region of the yogurt that is relatively thin under low power; this is where the bacteria are. For a better look of the bacteria, change the magnification to high power (400X for most microscopes). These tiny organisms will be significantly easier to see if your microscope has an oil immersion lens.
How can bacteria be separated from yogurt?By homogenizing and dissolving curds under alkaline conditions, as well as by subjecting them to lysis with proteases or surfactants, it is possible to separate LAB from yogurt (Gunasekera et al., 2002). Centrifugation is used to gather the cells following these procedures.
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What goes first with organ ,epithelial tissue ,epithelial cell and organ system
Answers
Epithelial tissue lines the organs of the body, including the lungs, heart, and stomach.
Is epithelium an organ system?Epithelium, endothelium, and mesothelium are three types of epithelial cell sheets that line your internal organs, and body space and form the outer layer of your skin. Epithelium generally lines alleyways that are open to the external environment, such as your respiratory area and digestive system.
Glandular epithelial tissue is also established as part of the glands, including hormone-manufacture organs like the liver, pancreas, and spleen. Epithelial tissues are widespread all around the body. They form the covering of all body surfaces.
So we can conclude that Simple epithelial tissues are normally classified by the shape of their cells.
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Which of the following processes would increase variation in a population?
1. Adding a new food source to the environment.
2. Inheritance of random portions of genes from each parent.
3. A population choosing to remain in the same environment.
A decrease in mutations due to a stable environment.
Answers
The following processes which would increase variation in a population is inheritance of random portions of genes from each parent and is therefore denoted as option 2.
What is Variation?This is referred to as the difference in DNA among individuals or the differences between populations.
Variation is increased when there are different random traits which are passed on from the parent to the offspring during the process of reproduction. This inherited traits will make the organisms more unique and different hence the reason why option 2 was chosen as the correct choice.
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2. An example of an internal stimulus
O A. Thirst
O B. Noise
O C. Light
O D. Temperature
Answers
You experience thirst in your mouth just like you experience hunger in your stomach. The other example will be experience by organs or other body parts that are touching the air or are on the outside of your body.
While online last week, you saw the following advertisement:
Shop at Impressive lonics!
The ions in our jewelry will balance your energy
and improve your health. Nine out of ten people
report significant improvement in the way they
feel within one week of wearing our jewelry.
SALE ENDS SATURDAY!
Which of the following is the best thing to do after reading this
advertisement?
A. Read the company website to find out more about how the ions
work.
B. Look for a peer-reviewed article relating to ionization and overall
well-being.
C. Buy the jewelry before the sale ends.
D. Look for other companies that sell similar products, then compare
prices.
Answers
The best thing to do after reading it is to (A) Read the company website to find out more about how the ions work. This will help to understand the science behind the claims made in the advertisement and whether or not the claims are actually supported by scientific evidence. Doing research will help make a more informed decision regarding the effectiveness of the product.
Question 1 10 pts Inside a piston-cylinder is water at 1750 kPa and specific volume equal to 0.10 m³/kg, what is the phase of the water? a.cannot be determined b.mixture of vapor and liquid c.saturated vapor d.superheated steam e.compressed liquid
Answers
The correct option is b. mixture of vapor and liquid.
Explanation:
Given,
The pressure of water inside a piston-cylinder = 1750 kPa
The specific volume of water inside a piston-cylinder = 0.10 m³/kg
To determine: the phase of the water.
Solution:
From the steam tables,
At a pressure of 1750 kPa and specific volume equal to 0.10 m³/kg,
the water is in a mixture of vapor and liquid phase.
Hence, the correct option is b. mixture of vapor and liquid.
A mixture of vapor and liquid phase refers to a system where both gaseous and liquid phases coexist in equilibrium. This type of mixture can occur when a volatile substance is partially evaporated or when a liquid is partially condensed.
In such a system, the vapor phase consists of gas molecules or atoms that have escaped from the liquid and are freely moving in the space above it. The liquid phase, on the other hand, consists of molecules or atoms that remain condensed and are in contact with each other within the liquid.
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According to evolutionary theory (darwin, 1859), natural selection favors genes that promote individual survival. this tenet is most troublesome in explaining __________.
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According to evolutionary theory (Darwin,1859), natural selection favors genes that promote individual survival. this tenet is most troublesome in explaining altruism.
Natural selection is the concept presented by Darwin. It states that only those organisms or species are selected by nature in the course of evolution who can adapt better than others in their environment and are able to reproduce.
Altruism is a behavior observed in certain species where one organism of the population protects the lives of others, even at the risk of its own life. This is frequently observed in ants, bees, elephants, etc.
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Many products and services were initially developed for space exploration. Which of these does NOT have a direct connection to space exploration? A. X-ray machine B. freeze-dried food C. infrared ear thermometer D. portable cordless vacuum
Answers
Answer:
x-ray machine
Explanation:
Answer:
The x-ray machine
Explanation:
Freeze dried food was developed with NASA. Food in space for the astronauts needed to have long shelf lives, be light, easy to pack, and easy to prepare.
The infrared ear thermometer was developed by Diatek and NASA using infrared astronomy technology to measure the infrared energy given off by the ear drum.
The portable cordless vacuum was developed by Black and Decker and NASA as a specialized drill to collect samples below the surface of the moon.
The X-ray machine was invented in the 19th century, way before the space program and NASA.
The inner and outer surfaces of a cell membrane carry a negative and a positive charge, respectively. Because of these charges, a potential difference of about 0.070 V exists across the membrane. The thickness of the cell membrane is 8.0×10
−9
m. What is the magnitude of the electric field in the membrane?
Answers
The magnitude of the electric field in the membrane is 8.75 x 10⁶ V/m.
The magnitude of the electric field in the membrane is 8.75 x 10⁶ V/m.
The given values are:
Thickness of the cell membrane = d = 8.0 x 10⁻⁹ m
Potential difference across the membrane = V = 0.070 V
The electric field E is given by the formula: E = V/d
The magnitude of the electric field in the membrane is 8.75 x 10⁶ V/m.
A cell membrane is made up of two layers of lipid molecules, which are arranged in a specific way that separates the inside and outside of the cell. The inner and outer surfaces of a cell membrane carry a negative and a positive charge, respectively. Because of these charges, a potential difference of about 0.070 V exists across the membrane.
The thickness of the cell membrane is 8.0×10⁻⁹ m. To determine the magnitude of the electric field in the membrane, we use the formula:
E = V/d
where E is the electric field, V is the potential difference, and d is the thickness of the membrane.
Substituting the given values, we get:
E = 0.070 V / 8.0×10⁻¹⁹ m E = 8.75 x 10⁶ V/m
Therefore, the magnitude of the electric field in the membrane is 8.75 x 10⁶ V/m.
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which of the following characteristics is not a key innovation that helped vertebrates invade land
1 a pharyngeal slit
2 a dorsol hollow nerve chord
3 a gastrovascular cavity
4 a notochord
Answers
Answer:
B.2
Explanation:
A gastrovascular cavity is not a key innovation that helped vertebrates invade the land. Therefore, option C is correct.
What is a gastrovascular cavity?The characteristic that is not a key innovation that helped vertebrates invade land is a gastrovascular cavity. A gastrovascular cavity is a digestive chamber that has only one opening through which food enters and waste is eliminated. This structure is found in some invertebrates, such as cnidarians and flatworms, but not in vertebrates.
The other three characteristics listed are key innovations that helped vertebrates invade the land:
Pharyngeal slits are used for filter feeding in aquatic organisms, but in terrestrial organisms, they evolved into gill arches, which supported the development of the jaw and the ear.A dorsal hollow nerve cord evolved into the spinal cord and central nervous system in vertebrates.A notochord provides support and rigidity to the body in early embryonic development and is found in all chordates, including vertebrates.Thus, option C is correct.
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Write a claim predicting the future effect of global carbon emissions on Earth’s systems. Use evidence from the data and models to support your claim, along with reasoning as to how the evidence supports your claim.
Answers
Explanation:
Gregor Mendel knew how to keep things simple. In Mendel's work on pea plants, each gene came in just two different versions, or alleles, and these alleles had a nice, clear-cut dominance relationship (with the dominant allele fully overriding the recessive allele to determine the plant's appearance
What effects does deposition have on the environment in ecoregions
Answers
When the erosion-causing action stops moving the silt, the rock fragments are dropped and they get settled down in a new location this is called deposition.
What are the effects of deposition?1)Sediment builds up in floodplains after the floodwaters have receded.
2) Beaches: Silt is deposited when water running uphill locates a body of water that is not flowing.
3)The waves also form the shoreline.
4)In dunes, an uphill slope blocks wind that is carrying sand, causing the wind to slow down and deposit the sediment.
5)A terrain surface that is flat, gently sloping, or gradually undulating due to the substantial deposition of mineral sediments by running water.
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Welwitschia is confined to the extremely arid desserts of southwestern Africa, and therefore (choose all that apply)
a) does not grow leaves
b) carries on CAM photosynthesis
c) produces a succulent stem like a cactus
d) obtains much needed water for condensation.
Answers
Welwitschia is confined to the extremely arid desserts of southwestern Africa, and therefore,
a) does not grow leaves
c) produces a succulent stem like a cactus.
Welwitschia is a plant species that grows in the deserts of southwestern Africa, which are extremely arid. To cope with the harsh environment, Welwitschia has adapted by developing a succulent stem that can store water. It has a unique growth pattern in which the stem grows wider and more twisted with age, but it does not grow leaves. Instead, it has two long, strap-like leaves that are continuously growing throughout the plant's life.
These leaves may split into narrow strips or fray at the edges, but they never fall off. Welwitschia also carries on CAM (Crassulacean Acid Metabolism) photosynthesis, which is a specialized form of photosynthesis used by plants that grow in arid environments to minimize water loss.
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explain how matter such as water, oxygen, and carbon dioxide cycles in an ecosystem?
help!
Answers
Answer:
Plants take in energy from the sun, carbon dioxide and water and produce carbohydrates and oxygen.
Explanation:
Hello! Please help me!
I have a test tomorrow so this is urgent!!!
Question: Look at the data in the photograph.
At the end of the period of exercise, how much faster is the heart rate of the untrained person than the trained person?
Answers
Answer:
Explanation:
since the y axis (the heart rate) is counting by 4s the trained heart beat seems to be 64 bpm while the untrained is 80 bpm
to find out the difference you would subtract 64 from 80 to get 16 so the difference would be 16 b.m.p after 23 minutes
Pig dissection circulatory system terms and functions
Answers
Here are terms and functions of the pig circulatory system:
Arteries: Arteries are blood vessels that carry blood away from the heart.Capillaries: Capillaries are very small blood vessels that allow the exchange of oxygen and nutrients between the blood and the cells.Heart: The heart is a muscular organ that pumps blood throughout the body.Lungs: The lungs are organs that allow the exchange of oxygen and carbon dioxide in the blood.Veins: Veins are blood vessels that carry blood back to the heart.What does the circulatory system do?The circulatory system of a pig is similar to that of a human. It is made up of the heart, blood vessels, and blood. The heart is a muscular organ that pumps blood throughout the body. The blood vessels are tubes that carry blood to and from the heart. The blood is a fluid that contains red blood cells, white blood cells, and platelets.
During a pig dissection, the circulatory system consists of various structures that play essential roles in the transportation of oxygen, nutrients, and waste throughout the body.
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Can you please answer this
Answers
Do you think that people should be allowed to construct new developments near wooded areas that are prone to forest fires? Explain your answer.,
Answers
Answer:
No, this is because the work itself of creating/constructing new developments may cause danger to the society. This may also cause environment issues and pollution in the air and many animals may be harmed. Also, by removing trees for developments, this may decrease the amount of oxygen and nature in the area.
Hope this helps:)
Please help me! Major grade. Tysm!!
Answers
Answer:
C. Individuals with thicker fur had a survival advantage in the cold, allowing these individuals to reproduce moe often and create more offspring.
Explanation:
Natural selection means the process of changing the adapting the new environment. Based on the given data one can conclude that the individual with thicker fur had a survival advantage in the cold environment.
Why natural selection occurs?
Natural selection takes place due to 3 underlying reasons:
Reproduction
Heredity
Variation in fitness of organisms.
Due to these reasons, natural selection can leads to speciation.
As the individual are living in cold environment, they need to adapt the change in environment. So, individuals with thicker fur had a survival advantage in the cold environment, allowing these individuals to reproduce more often and create more offsprings.
Thus, option C is correct.
I need help Please!!!
Answers
Answer:
it is option - B - An abandoned field
Answer:
b
Explanation:
I just think it is b.
How has the sun caused changes in global and hemispheric temperatures over the past millennium?.
Answers
Changing solar output is most likely responsible for relatively high Northern Hemisphere temperatures during 1000-1100 A.D. and relatively low Northern Hemisphere temperatures during 1600-1700 A.D.
Recreations of the most recent 1,000 years have been finished with a few distinct models. A portion of the subtleties are unique, they all show a few comparable patterns in Northern Hemisphere atmosphere; relative warmth before the fourteenth century followed by chilly periods between the fifteenth and mid nineteenth hundreds of years. The warming of the twentieth century is, given the viewpoint of the earlier thousand years, extraordinary.
These reenactments intently coordinate the paleoclimate record of temperature throughout the previous 1,000 years. Contrasts between the time arrangement are because of a few variables, remembering vulnerabilities for the driving time arrangement, for instance whether solid or frail sun oriented constraining is utilized, and the flightiness of certain collaborations between the air, sea, land surface, and ocean ice.
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When you do something anaerobic, your body makes a natural chemical called __________ that is like emergency energy for your muscles.
Group of answer choices
lactic acid
oxygen
testosterone
sweat
Answers
Answer:
Sweat?
Explanation:
Answers:
lactic acid
Explanation:
In anaerobic respiration, glucose breaks down without oxygen. The chemical reaction transfers energy from glucose to the cell. Anaerobic respiration produces lactic acid, rather than carbon dioxide and water. Unfortunately this can lead to painful muscle cramps.