The phrase mentioned refers to the cosmological principle in physics, which asserts that the universe on a large scale is isotropic and homogeneous. It helps simplify models of the universe's expansion and is a base for theories on the universe's structure and dynamics. However, it remains an assumption and may not account for all possible micro variations.
Explanation:The statement you mentioned refers to the cosmological principle, a foundational assumption in the field of cosmology. This principle assumes that on a large scale, the universe is isotropic (the same in all directions) and homogeneous (having a consistent and even distribution of matter), which leads it to appear the same regardless of your observational vantage point. Having isotropic and homogeneous properties means the universe is smooth, as shown by various galaxy surveys.
This principle has played a significant role in the development of theories about the universe's structure and dynamics. For instance, it significantly simplifies models related to the universe's expansion. Concepts like Newton's laws and the law of conservation of matter do operate under this assumption, upholding the fact that the universe's behaviour can be predictable to an extent based on these laws.
Despite its broad acceptance, keep in mind that the cosmological principle is still an assumption and is subject to limitations. For instance, it does not account for small-scale local differences and potential uneven distribution of dark matter.
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Where is the blood filtered first?
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The edges of faults are rough and tend to stick together while the rest of the block is moving. The energy that would normally cause the blocks to slide past one another is being stored up. When the force of the moving blocks finally overcomes the friction of the rough edges at the fault zone, it unsticks, and the stored up energy is released. The energy radiates outward from the fault in all directions.
The energy that radiates outward from the fault in all directions is a(n)
A) volcano.
B) tidal wave.
C) aftershock.
D) seismic wave.
Answer:
D. Is correct I took it on USATESTPREP
Explanation:
Bacteria is the driving force behind the ____ cycle a. solar b. heat c. nitrogen d. water
The Nitrogen cycle involves living organisms needing gas and involves
plants to create chlorophyll in plants. It also needs species of bacteria to
convert nitrogen.
answer is C
Cardueline finches can be found in many areas of the world, including North America and Asia. Hawaiian honeycreepers, which are found only in Hawaii, have been found to have DNA commonalities with this group of finches that indicate they have a common ancestor. Which mechanism might have led to the appearance of the Hawaiian honeycreeper?
anatomical isolation
temporal isolation
geographical isolation
behavioral isolation
Geographical Isolation is the mechanism that might have led to the appearance of the Hawaiian honeycreeper.
Geographical Isolation is the term used that refers to a population of animals, plants, or other organisms that are separated and unable to exchange genetic materials with other organism of the same species.
Geographical Isolation may be a result of coincidence or accident.
Here are some factors of Geographical Isolation:
1) Isolation by barriers
2) Isolation by distance
3) Isolation after an Event
4) Isolation by separation
Answer:
The answer is c). geographical isolation
What causes an object with mass to have weight?
Gravity is the attractive pull between two objects that have mass. The strength of gravity is directly proportional to the amount of mass of each object. ... An object with twice as much mass will exert twice as much gravitational pull on other objects. The gravitational force increases as the size of an object increases.
NEED HELP ASAP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! LAST ONE WILL GIVE BRAINLIEST
In the drawing above, the distance from the ground to the floor of the trailer is 28 inches. The length of the ramp is 70 inches. What is the mechanical advantage of this simple machine?
A.
28
B.
2.5
C.
2/5
D.
1/3
The correct answer is B - 2.5
PLZ HURRY IT'S URGENT!!!!
This is the equation for the formation of sodium chloride from sodium bromide. Cl2 + 2NaBr → Br2 + 2NaCl Which are the reactants and the products in this reaction?
A. The reactants are Cl2 (chlorine) and NaBr (sodium bromide). The products are Br2 (bromine) and NaCl (sodium chloride).
B. The reactants are Br2 (bromine) and NaCl (sodium chloride). The products are Cl2 (chlorine) and NaBr (sodium bromide).
C. The reactants are Cl2 (chlorine) and Br2 (bromine). The products are NaBr (sodium bromide) and NaCl (sodium chloride).
D. The reactants are NaBr (sodium bromide) and NaCl (sodium chloride). The products are Cl2 (chlorine) and Br2 (bromine).
The correct answer is A
Reactants are the left side of the equation, and the Products are the right side of the equation.
Complete the possible outcomes for each generation in the pedigree chart.
bb Bb BB
Answer:
In the first generation left to right Bb and bb and in the second generation BB will be the right outcomes.
Explanation:
In the first generation the four gamets will be formed - B, b, b, and b so the outcomes will be Bb, bb, bb, and Bb. In the second generation, the four gamets will be formed - B, B, B, and b and possible outcomes will be- BB, BB, Bb, and Bb. So in the given chart the possible outcomes in the first generation will be Bb and bb in the box from left to right and in the second generation BB in the box.
fungi are different from plants in that fungi
a. secrete enzymes
b. decompose organic waste
c. contain dna
d. have cell walls
Which of these processes is a nearly universal energy-releasing metabolic process that indicates common ancestry for all life on earth?
A) Glycolysis
B) Photosynthesis
C) Chemosynthesis
D) Cellular Respiration
Which of these processes is a nearly universal energy-releasing metabolic process that indicates common ancestry for all life on earth?
The answer is option A) Glycolysis
Glycolysis is the process in which glucose is broken down by enzymes, thus releasing energy and pyruvic acid. All cells can perform anaerobic respiration by glycolysis.
Answer:
A) Glycolysis
Explanation:
Glycolysis Glycolysis is anaerobic, so no oxygen is required. It occurs in the cytoplasm, so no organelles are involved. It produces more ATP than is consumed, so it is energy-releasing. Therefor, all cells on earth can perform glycolysis. Other energy harnessing and releasing processes (photosynthesis, chemosynthesis, and aerobic cellular respiration) are only performed by certain cell types.
2 Which of the following best describes how comparative anatomy can be used to determine the evolutionary relationship between two organisms?
Two species that have few physical traits in common do not share a common ancestor and most likely evolved from different species.
Answer:
its c
Explanation:
i took the test
Mineral matter and organic matter together make up about 50 percent of soil. What two substances make up the other 50 percent?
The particles that make up soil are categorized into three groups by size: sand, silt, and clay. Sand particles are the largest and clay particles the smallest. Although a soil could be all sand, all clay, or all silt, that's rare. Instead most soils are a combination of the three.
The relative percentages of sand, silt, and clay are what give soil its texture. A loamy texture soil, for example, has nearly equal parts of sand, silt, and clay.
SOIL HAS STRUCTURE
Soil structure is the arrangement of soil particles into small clumps, called "peds". Much like the ingredients in cake batter bind together to form a cake, soil particles (sand, silt, clay, and organic matter) bind together to form peds. Peds have various shapes depending on their “ingredients” and the conditions under which the peds formed: getting wet and drying out, freezing and thawing--even people walking on or farming the soil affects the shapes of peds.
Ped shapes roughly resemble balls, blocks, columns, and plates. Between the peds are spaces, or pores, in which air, water, and organisms move. The sizes of the pores and their shapes vary from soil structure to soil structure.
Answer:
water and air is the other 50%
Explanation:
5. If 18 out of 50 lizards sampled has the recessive plan for short tails
a. What would be the proportion of t alleles in the lizard population?
b. What would be the allele frequency for the dominant allele?
C. What percent of the population would be heterozygous?
[Ans -(a)0.6; (b) 0.4; (C) 0.48]
I need to show the work, but I can't figure out how to do any of this, please help!
The proportion of t alleles in the lizard population is 0.36 or 36%. The allele frequency for the dominant allele is 0.64 or 64%. The percent of the population that would be heterozygous is 0.46 or 46%.
Explanation:To find the proportion of t alleles in the lizard population, we need to determine the frequency of the recessive allele. Since 18 out of 50 lizards have the recessive allele, the proportion of t alleles would be 18/50, which simplifies to 0.36 or 36% (a).
To find the allele frequency for the dominant allele, we can subtract the recessive allele frequency from 1. Since the recessive allele frequency is 0.36 or 36%, the allele frequency for the dominant allele would be 1 - 0.36 = 0.64 or 64% (b).
To find the percent of the population that would be heterozygous, we can calculate 2pq, where p is the dominant allele frequency and q is the recessive allele frequency. Using the allele frequencies from part (a) and (b), the heterozygous proportion would be 2 * 0.64 * 0.36 = 0.46 or 46% (c).
Can someone write me an essay on the effects of pollution on the ocean? 500 words
Explanation:
Everything in this world we use comes from the ocean in some way. The air we breathe, the water we drink, even the products we use day to day, would not be possible without the ocean. That's why the issue of ocean pollution is so important and needs to be addressed as soon as possible. We depend on the ocean for so much in our life, without it we would surely become extinct. People seem to think that since the ocean is so large and vast, we can dump as much waste as we'd like into it and it will never have an effect on us. However, since we've been polluting the ocean as far back as Roman times, the evidence of ocean pollution becoming a major problem is all too clear. There are many different ways the ocean can become polluted.Fishnets improperly discarded into the ocean can also cause major issues, tangling into unsuspecting mammals and fish. According to the Marin Academy's Oceanography website, there are over 46,000 pieces of plastic floating in each square mile of ocean off the Northeast coast of the United States, which contributes to the death of 100,000 marine mammals and two millions sea birds yearly. A way you wouldn't expect pollution to be caused is by noise. The pressure from the sounds omitted by ships, sonar devices, oil rigs, and earthquakes can disrupt communication, hunting, migration, and reproduction patterns from many marine animals like whales and dolphins. This can throw the whole system off balance. Air pollution can also cause ocean pollution by being absorbed into the water and contaminating it, and vice versa. Ocean pollution can eventually cause air pollution. Dirt can also spill into waterways from top soil or silt from fields or construction sites, causing endangerment to fish and wildlife habitats. Out of all of these ways, oil spills can cause a noticeably excessive amount of damage to the ocean. Although only 12% of the oil entering the sea is caused by spills, they can deteriorate ocean life and environment more than any other pollution. One gallon of used oil spilled into the ocean, which contains toxic chemicals and heavy metals severely dangerous to the micro-organism at the base of the food chain, can cause an eight-acre layer
out at the beautiful ocean, the silky sand and gorgeous seashells lay underneath my feet. The blue waves crashing down onto the shore. The ocean is truly a beautiful sight to see. However, we are slowly ruining this beautiful thing because of the way we treat this planet, the ocean is extremely polluted and marine life is paying for it. A few of the ways mankind is damaging marine life is by heavy oil pollution, and exposing marine life to dangerous chemicals. One way our oceans are polluted is because.
Ocean Pollution Ocean pollution kills marine life everyday and damages the ocean in many ways that sometimes can't be fixed. The real question is where does it all go? Much of it ends up on our beaches washed in with the waves and tides, some sinks, some is eaten by marine animals mistaking it for food. The majority of pollutants going into the ocean come from activities on land. According to the United Nations Environment Programme (UNEP).
Ocean pollution is one of the most urgent issues in our world today. The ocean is crucial to our ecosystem and it is being severely damaged at an alarmingly increasing rate. In this paper I will educate about the role the ocean plays in our beautiful Earth, why it is being so widely ignored and dismissed, the causes of pollution, and its effects on animals and humans alike. Since the beginning of the human race, people have flocked to the ocean. The largest civilizations were built in fertile, coastal
The oceans face many types of pollution every day, every second. The ocean is our greatest ecosystem and out most valuable resource. A common misconception is that the rainforests are the lungs of the planet however, the majority of our oxygen is made via the algae in the sea. The oceans feeds, hydrates, and provides us with oxygen; ironically enough, despite its monetary value to mankind, it is what is treated the worst. For ages we have been dumping our trash, chemicals, and waste into the oceans
I'm in the ocean every day, it’s my second home. Because of this, I am very sensitive to literary and other pollution that ends up in our oceans. I can't walk down the beach today without seeing a pile of trash. Because of this curiosity, I wanted to research what another type of litter fill our local ocean. Our ocean is filthy, Plastics and fibers make their way into the sea naturally every day. Apart from the rest of the trash, some of these plastics and fibers are microscopic, coining the terms.
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which consumers live in the intertidal zone
This is Limpets and Crabs
summarize how the dna sequence directs the making of a protein
Proteins are produced by stringing amino acids together in the order specified by messenger RNA strands that were transcribed from DNA in the cell nucleus. The process of synthesizing a protein is called translation, and it occurs on ribosomes in the cytoplasm of a cell.
Assume that you have been given the parts of a dissected shoe flower. If you were to put these parts back together, what would be the correct order to arrange the flower parts in, starting from the inside? peduncle, receptacle, epicalyx, calyx, corolla, stamens, ovary with carpel stamens, ovary with carpel, corolla, calyx, epicalyx, receptacle, peduncle ovary with carpel, stamens, corolla, calyx, epicalyx, receptacle, peduncle
I am pretty sure its OVARY with CARPEL, STAMENS, COROLLA, CALYX, EPICALYX, RECEPTACLE and PEDUNCIE.
Natural selection does not always result in an increase in genetic diversity. Please select the best answer from the choices provided T F
Answer:
ITS ture!!!!!!!!
Explanation:
Answer:
True
Explanation:
In a natural selection, the frequency of an allele not necessarily increases always. The frequency of an allele decreases sometimes in natural selection. There are different modes of natural selection –
a) Mutation – When a new allele is created
b) Random mating
c) Random fertilization
d) Recombination
A common example of natural selection in which the genetic variation decreases is known as founder effect in which the population starts ascending from a small population.
All animals share several common characteristics. Which is a characteristic shared by all animals?
Question 2 options:
endoskeletons and muscles
sensory organs and backbones
multi-cellular bodies
exothermic blood systems
Answer: multi-cellular bodies
Explanation: All animals are multi-cellular. This means that they are made up of many cells/cellular systems. Single-celled organisms, on the other hand, are not considered animals. Those would mostly be too tiny to see without the aid of a microscope tool. The other answer choices would not fit, because not all animals have bones (endoskeletons or exoskeletons). Also, only some animals are cold blooded, which is what the last answer choice has to do with.
All animals share the characteristic of having multi-cellular bodies. This feature differentiates them from unicellular organisms. Other characteristics like endoskeletons, sensory organs, backbones, and exothermic blood systems are not universal to all animals.
Explanation:The characteristic shared by all animals is that they have multi-cellular bodies, this means they are made up of more than one cell. This feature distinguishes them from unicellular organisms, such as bacteria, which consist of a single cell. The options of endoskeletons and muscles, sensory organs and backbones, and exothermic blood systems are not common to all animals.
For example, jellyfish do not have endoskeletons or muscles, many invertebrates don't have backbones, and not all animals have exothermic blood systems.
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Classify the following as either a specific or a nonspecific defense of the body's immune system.
• skin
• macrophages
• bacteria • mucous
• fever
• B cells • T cells
• antibodies
Specific Nonspecific
Specific defence would be types of defence directed to a specific antigen. Nonspecific defence would be general types of defence; directed to any type of antigens.
Specific:
Antibodies B cellsT cellsNonspecific:
SkinBacteria MucusMacrophagesFeverHope it helped,
BiologiaMagister
Governments and businesses have little impact on the environment. Please select the best answer from the choices provided T F
false
hope this helps :)
Answer:
False
Explanation:
Government affects the environment by its policies. Approval for various environmental protection acts and their execution by government determine the quality and pollution level of the environment. Similarly, various businesses affect the environment by release of pollutants in air or water. Following the eco-friendly processes may protect the environment by possible harms.
which of the few is not a defining characteristic of water?
a) surface tension
b) cohesion
c) polarity
d) low specific heat capacuty
Answer:
D
Explanation:
Low Specific Heat Capacity
Which organism would you expect to find at a level C
for level c (if you use Apex Learning) you would select the rabbit
Answer:
A.rabbit
Explanation:
apexs
An error in the DNA checkpoint by DNA polymerase during DNA replication could pass on to future offspring only if?
the mutation occurred in the gametes
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how would the citrate mutation in E. coli give it an advantage over other E.coli populations?
The mutation enabled one of the E. coli populations to feed off citrate. this gave them an advantage because they had another food source
Final answer:
The citrate mutation in E. coli allows the bacteria to metabolize citrate as a new energy source, giving them an evolutionary advantage in certain environments. This adaptation involves an increased expression of genes such as citT and DctA, which enhance nutrient uptake and citrate metabolism.
Explanation:
The citrate mutation in E. coli provides a significant evolutionary advantage over other populations that cannot metabolize citrate. This mutation involves changes such as a genomic duplication leading to increased expression of the citT gene, which enables the bacteria to import citrate into the cell. The ability to utilize a previously untapped energy and carbon source through the citrate permease enzyme gives these bacteria a reproductive advantage in environments where citrate is available, thus enhancing their survival and proliferation.
Further mutations, such as those increasing the expression of DctA, have been observed to improve the E. coli cells' capacity to import nutrients and metabolize citrate, further strengthening their competitive edge. This adaptation exemplifies mechanisms of evolution where selective pressure encourages the accumulation of beneficial mutations, rather than relying on a singular, rare alteration to confer a survival benefit.
A 111.6 g sample of iron was heated from 0°C to 20°C. It absorbed 1004 J of energy. What is the specific heat capacity of iron?
0.00578 J/g°C
0.45 J/g°C
2.20 J/g°C
4.18 J/g°C
= 449.82 J/kg/K
Explanation;Quantity of heat by a substance is given by the formula;
Q = McΔθ
Where; Q is the quantity of heat,m is the mass in Kg, c is the specific heat capacity, Δθ is the change in temperature.
Q = 1004 Joules, mass = 0.1116 Kg and Δθ = 20
Therefore;
1004 J= 111.6/1000 × 20 × c
1004 J = 0.1116 × 20 × c
c = 1004/(0.1116 × 20)
= 449.82 J/kg/K
Why is HIV difficult to cure?
it's difficult to cure because there are so many varying strains that are slightly different
Because is degenerative and hits your inmune system.
Best regards
Freshwater biomes have ____
Answer:
The letter C is the right answer.
Explanation:
According to salinity, we can divide the water into fresh, brackish and salty. Freshwater has a small amount of salt (less than 1%), so, despite the term, we must make it clear that it does not contain sugar. This is the water most used by man and is available in rivers, lakes and underground reserves. It is estimated that it represents only 2.5% of the total water on the planet.
What do u call the water on the earth surface
Hello
Is called: Ocean, sea...
Best regards
Its called Hydrosphere
A piece of iron at 25 °C is dropped into a glass of water at 15 °C. Which statement is correct?
Heat will flow from the iron to the water in the glass until both reach the same temperature.
Heat will flow from the water in the glass to the iron until both reach the same temperature.
The final temperature of the water in the glass and the iron will be 25 °C.
The final temperature of the water in the glass and the iron will be 15 °C.
When a piece of iron at 25 degrees Celcius is dropped into a glass of water, whose temperature is 15 degrees Celcius, the heat will flow from the iron to the water in the glass until both reach the same temperature. This is because the one that is warmer would release more energy to the colder one.
Answer: Heat will flow from the iron to the water in the glass until both reach the same temperature
Credit to: @Samuelkenobi11
Final answer:
Heat will flow from the piece of iron at 25 °C to the colder water at 15 °C until both substances reach the same temperature due to the second law of thermodynamics.
Explanation:
When the piece of iron at 25 °C is dropped into a glass of water at 15 °C, heat will flow from the iron to the water in the glass until both reach the same temperature. This is a consequence of the second law of thermodynamics, where heat naturally flows from a hotter object to a colder one until thermal equilibrium is reached. Since the iron is at a higher temperature, it will lose heat to the water, which is at a lower temperature.