Answer:
UCG
Explanation:
In DNA, Thiamine pairs with Adenine while Cytosine pairs with Guanine. However, it is important to note that Uracil takes the place of Thiamine in RNA. Therefore the A in the mRNA will pair in U in the tRNA. tRNA uses the anticodon region to read the mRNA and a match means the specific tRNA brings in the requisite amino acid.
In which situations is work being done?
Hannah leans against her locker, but it doesn’t move.
Andy’s car rolls down a hill with the engine off.
A wind turbine stands still on a sunny, windless day.
A balloon expands as it is heated by the Sun.
James pedals a stationary exercise cycle that doesn’t move.
Answer:
it would seem to be James because James is doing work by exercising all of the other situations look to be using no energy at all
Explanation:
Answer:
Andy’s car rolls down a hill with the engine off.
A balloon expands as it is heated by the Sun.
Explanation:
Work is said to be done when a force applied on an object is able to move/displaces the object from its position. But, if force is applied on an object but it does not move or force which is being applied on the object is prependicular to the object in such situations work done is zero.
The formula for work done is mentioned as under:
W = F.d. cosФ
Where, W = Work done
F = Force applied
d = displacement
Ф = angle between force and displacement
So if Ф = 90° then cosФ = 0 and hence, W = F.d. cosФ = F x d x 0 = zero &
W = F.d. cosФ = F x 0 x cosФ = zero, when d = 0.
Andy’s car rolls down a hill with the engine off - In this situations work is said to be done because there is a net movement of the object in the direction of force.
A balloon expands as it is heated by the Sun - In this situation work is said to be done due to heat expansion.
Hannah leans against her locker, but it doesn’t move, a wind turbine stands still on a sunny, windless day & James pedals a stationary exercise cycle that doesn’t move - In all these situations, work done is zero because there is no net displacement. i.e. d = 0.
I was thinking an enzyme and protein, any ideas?
Answer:
A is an enzyme,B is substrate, and yes, protein
Explanation:
Unlike a prokaryotic bacteria cell, a virus, like the one in the image, A) has a lipid cell wall. B) has no genetic material. C) cannot reproduce on its own. D) does not contain any organic molecules.
C) cannot reproduce on it's own.
Contrast oxygen levels in standing and running water ecosystems.
Answer:
WHich ones?
Explanation:
Which level of organization is the highest?
The highest level of organization for living things is the biosphere.
Answer:
Biosphere
Explanation:
The biosphere is the highest level of organization. The biosphere not only involves living things but also relationships and interactions between them.
The basic unit of living beings is cell which forms tissue. The tissues are involved in the formation of organs which further develops a organ system in an organism. Thus forming an organism, then populations. The various number of populations forms communities which further form ecosystem and then the highest level of organization that is biosphere.
Which statement is not an accurate description of meiosis
Answer:
b
Explanation:
mitosis creates offspring identical to parents
Answer:
b.
Explanation:
The process of meiosis does not produce identical cells because genetic recombination occurs in this process, so the daughter cells are different from the mother cell. Daughter cells have half the genetic information.
In mitosis instead the result is two identical cells.
which of the following forms at mid-ocean ridges
Answer: a new ocean floor would be most likley to form.
i hope i helped a thank and a brainlist would be greatly apprecited :)
Distinguish between mudflows and earth flows
Mudflows are rapid movements of water-saturated soil, notable for their high water content and perceptible speed, often found in arid regions. Earth flows are slower, lack defined channels, are common in humid areas, and contain less water. Debris flows involve larger materials and occur under different conditions, such as steeper slopes and greater water presence.
Differences Between Mudflows and Earth Flows
When comparing mudflows to earth flows, several key distinctions can be noted. First, mudflows are rapid downslope movements of water-saturated soil and regolith, which are easily perceptible due to their higher water content. They are more prevalent in arid regions with sparse vegetation and can occur after heavy rainfall or during volcanic eruptions. In contrast, earth flows are much slower and can sometimes be almost imperceptible. They are not confined to channels like mudflows and are more commonly found in humid areas. Additionally, earth flows tend to have lower water content compared to mudflows.
Mudflows consist mostly of sand-sized or smaller particles and can take on the form of lahars during volcanic activity, while earth flows involve finer materials. Debris flows, which are closely related to mudflows, involve larger clasts and require steeper slopes and more water to occur, often resulting in the collapse of bank material into a stream, leading to a sudden rush of water and debris.
What happens when an antibody binds an antigen
Antibody–antigen complex: The forked end of an antibody recognises and binds to the antigen on the surface of the pathogen. The third and final line of defence is the immune response. The invading microbe or pathogen is called an antigen. It is regarded as a threat by the immune system and is capable of stimulating an immune response.
A researcher observes two species of frogs in the same area. Both species have a similar diet. One species breeds in fast-moving streams, while the other species breeds in ponds. Both species are similar in appearance and have very similar DNA. This is most likely an example of
Geographical isolation.
Habitat isolation.
Behavioral isolation.
Temporal isolation
Answer:
Behavioral isolation.
Explanation:
SInce the example is saying that both species of frogs are in the same area, this eliminates the option of geographical and habitat isolation, since they are already togheter and have similar diet, appearence and DNA this means they could interbreed, and since the example is not saying anything about breeding times for each species, we can not assume this is a temporal isolation, so the only thing that sets them apart is the fact that they have different breeding rituals, since one species breeds on water ponds and the other in fast-moving streams, this is known as Behavioral Isolation, since it´s their breeding rituals that keeps them from interbreeding.
During the last century, human impacts on our
planet have led to an increasing and alarming loss of
biodiversity in rainforest ecosystems. Scientists
estimate the current extinction rates exceed those of
some prehistoric mass extinction is, This loss of
biodiversity also means loss of genetic diversity and
loss of ecosystems. What could be done to minimize
this loss of biodiversity?
A. Introduce new species to rainforest
ase
ecosystems.
B. Write and pass new environmental protection
laws specific to rainforest ecosystems.
C. Build barriers around rainforest ecosystems to
keep animals and plants contained.
D. Move all rainforest animals to new ecosystems
where they will be safe.
Answer:
I would say B.
Explanation:
A would only fix biodiversity temporarily, until humans come and wipe them out again. C is just kind of impossible, and containing them could also be problematic. D is also unreasonable, and some animals would not be able to thrive in new ecosystems. B would help save the environment, which would save the animals, which would help biodiversity.
To minimize the loss of biodiversity in rainforest ecosystems, it is important to implement several measures including conserving and protecting existing rainforest habitats, restoring degraded areas, and raising awareness about the importance of biodiversity conservation.
Explanation:To minimize the loss of biodiversity in rainforest ecosystems, it is important to implement several measures. First, it is crucial to conserve and protect existing rainforest habitats by designating them as protected areas and wildlife reserves. This can be achieved through the establishment of new environmental protection laws specific to rainforest ecosystems. Secondly, efforts should be made to restore degraded rainforest areas by replanting native species and rehabilitating ecosystems. Finally, educating and raising awareness among local communities and the general public about the importance of biodiversity conservation and sustainable practices can go a long way in minimizing the loss of biodiversity.
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Which statements describe freshwater sources? Check all that apply.
A) rainwater can replace or replenish freshwater sources.
B) precipitation, such as rainwater, is a source of freshwater on Earth.
C) when the amount of surface freshwater increases, so does the amount of groundwater.
D) human activity, such as taking a bath, may change the quality of a freshwater resource.
E) pollution in lakes does not affect groundwater because the ground acts as a barrier of filter.
The statements below describe freshwater sources
Rainwater can replace or replenish freshwater sources.Precipitation, such as rainwater, is the source of freshwater on Earth.When the amount of surface freshwater increases, so does the amount of groundwater.Human activity, such as taking a bath, may change the quality of a freshwater resource.Precipitation is a major source of freshwater sources and helps to replace
and replenish water lost during evaporation.
Surface fresh water seeps into the soil to form groundwater which is why
they have a direct relationship.
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An ecosystem in Venison Forest includes both deer and wolves. The deer tend to be most successful living on the edge of the forest, near human developments. The wolves, on the other hand, need large stretches of uninterrupted forest in order to survive.
If humans cut down a few sections in the middle of the forest to build new homes, which of the following is a likely effect on the ecosystem that could be irreversible?
A.
The trees might become more abundant.
B.
There will be fewer deer.
C.
The wolves could die out.
D.
There will be fewer grasslands.
Reset Submit
Answer:
c
Explanation:
the deer will be fine with human development near them, while the wolves territory will be split
The wolves could die out if humans cut down a few sections in the middle of the forest to build new homes. Therefore option (C) is correct.
What is an ecosystem?An ecosystem, also known as an ecological system, is made up of all the organisms and the physical setting in which they live.
The nutrition cycles and energy flows connect these biotic and abiotic elements. Photosynthesis is how energy enters the system and is absorbed by plant tissue. Animals play a significant part in the transfer of materials and energy through the system by eating plants and one another. They also have an impact on the biomass levels of the microbial and plant communities.
In addition to facilitating nutrient cycling by transforming nutrients held in dead biomass back into a form that can be easily utilised by plants and microorganisms, decomposers also release carbon into the atmosphere through the breakdown of dead organic matter.
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Drag and drop the terms on the left to complete the concept map
Do you have a picture of the concept map? :)
Drag and drop the terms on the left to complete the concept map
Further explanation Evolution might result in New structures such as in amphibians gained Bony fishes Evolution might result in New structures such as Bony fishes Evolution might result in New structures . such as in amphibians had features of Limbs such as Bony fishes Evolution might result in New structures such as Bony fishes Evolution might result in New structures such as in amphibians had features of gills such as TiktaalikEvolution might result in New structures when compared to other species, may be Analogous structures if related by Common functionEvolution might result in New structures when compared to other species, may be homologous structures if related by Common ancestry
Analogous structures have different evolutionary ancestries but they have the same function. Physical features shared due to evolutionary history (a common ancestor) are said to be homologous. Examples of Analogous structures are the wings of birds, bats and insects. Whereas homologous structures are the opposite. They have similar ancestries and common traits but maybe not have the same function in an organism.
Tiktaalik better known as the "fishapod," is a 375 million year old fossil fish which was discovered in the Canadian Arctic in 2004. Tiktaalik have fins with thin ray bones, scales, and gills like most fish.
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Grade: 9
Subject: biology
Chapter: the concept map
Keywords: Tiktaalik, homologous structures, Analogous structures, the concept map, Bony fishes
Who designed the first periodic table?
A. John Dalton
B. Louis Pasteur
C. Gregor Mendel
D. Dmitri Mendeleev
Answer:
Dmitri Mendeleev
Explanation:
Mendeleev published his periodic table of all known elements and predicted several new elements to complete the table in a Russian-language journal. Only a few months after, Meyer published a virtually identical table in a German-language journal.[45][46] Mendeleev has the distinction of accurately predicting the qualities of what he called ekasilicon, ekaaluminium and ekaboron (germanium, gallium and scandium, respectively). (wiki.com)
Dmitri Mendeleev ! Hope it helps
Please mark brainliest
Which type of worm has a body that is divided into many ring-like parts?
roundworms
segmented worms
flatworms
feather-duster worms
Answer:
segmented worms
Explanation:
Segmented worms are the most complex animals with worm-like body plans.
Final answer:
The segmented worm is the type with a body divided into ring-like parts, and they belong to the phylum Annelida, with earthworms as common examples.
Explanation:
The type of worm that has a body divided into many ring-like parts is the segmented worm. Segmented worms are part of the phylum Annelida, which includes earthworms, leeches, and some marine worms. These worms have bodies that are segmented, meaning their bodies are separated into repeating units. Earthworms are common examples of segmented worms, and they play a critical role in enriching and aerating the soil, supporting terrestrial ecosystems. Additionally, segmented worms typically have well-developed organ systems, with a complete digestive tract, a fluid-filled cavity that acts as a hydroskeleton, and a more developed nervous system compared to other worm types like roundworms and
Which of these is an environmental effect on deforestation?
A. Temperature Decrease
B. Poisoning Wildlife
C. Soil Erosion
D. Water Temperature Increase
That would be C. Soil erosion. Deforestation means the destruction of trees, and trees have roots, roots which hold the ground in place, so when the wind blows, or water rushes thru it, it doesn't wash away. When trees get cut down, the roots die, and nothing is there to hold the soil down, so It washes away. Hope this helps!
Option C
Soil Erosion
Scientists know that organisms that are more closely related will have DNA sequences more similar to each other than organisms that are distantly related. Which two organisms below would most likely have the fewest similar nucleotide sequences in a given gene?
An alligator and an earthworm
Scientists know that organisms that are more closely related will have DNA sequences that are more similar to each other than organisms that are distantly related, the two organisms that would most likely have the fewest similar nucleotide sequences are humans and the bacterium present in Option a.
What is evolutionary relatedness?The relationship between evolutionary relatedness and DNA similarity arises from the fact that DNA sequences change over time while mutations can arise through various mechanisms, such as errors in DNA replication or exposure to mutagens, etc. As a result, organisms that diverged more recently from a common ancestor are expected to have more similar DNA sequences and more evolutionary relatedness than those that diverged further back in time.
Hence, the two organisms that would most likely have the fewest similar nucleotide sequences are humans and the bacterium present in option a.
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the question is incomplete, the complete question is below
Scientists know that organisms that are more closely related will have DNA sequences more similar to each other than organisms that are distantly related. Which two organisms below would most likely have the fewest similar nucleotide sequences in a given gene?
a)humans and the bacterium
b)human male and the human female
why don't all organisms become fossils when they die?
Answer:
Oxygen...
Explanation:
Organisms decompose more quickly when they are in contact with oxygen. ... When an organism is buried quickly, there is less decay and the better the chance for it to be preserved. The hard parts of organisms, such as bones, shells, and teeth have a better chance of becoming fossils than do softer parts.
Final answer:
Organisms do not always become fossils due to the specific and uncommon conditions required for fossilization, such as rapid burial in sediments or extraordinary preservation environments. The fossil record is thus incomplete, capturing only a fraction of past life forms under certain conditions.
Explanation:
Not all organisms become fossils when they die because the conditions required for fossilization are quite specific and rarely occur. Remains must be rapidly covered by sediments or preserved in unique circumstances such as being frozen in glaciers or trapped in tree resin. The environment plays a crucial role in preserving fossils, with physical conditions like temperature and water depth, and chemical conditions such as pH and oxygen levels greatly influencing this process. Organisms that do not get preserved in such a way eventually decompose fully.
Fossils help paleontologists understand Earth's history, evolution, and paleoenvironments. They also indicate that most species that have lived on our planet are now extinct. Fossils are not only a window into the past, but they are also a finite non-renewable resource, as is the case with fossil fuels derived from ancient organisms that decomposed under specific anaerobic conditions over millions of years.
While most remains eventually deteriorate, under favorable conditions such as volcanic ash, limestone, and mineralized groundwater, fossilization can occur, although it remains a rare event. This results in an incomplete fossil record, as the conditions for preservation don't happen frequently enough to capture all past life forms.
Elements such as nitrogen,carbon,and oxygen cannot be made or destroyed they can only change their location by cycling through the biosphere true or false ??
Answer:
true
Explanation:
Answer:
True
Explanation:
Chemicals like Nitrogen, Carbon and Oxygen cannot be made or destroyed they can only change their phase and location.
There are several biogeochemical cycle in the environment which keeps the essential nutrient in rotation within the ecosystem.
Such as carbon cycle, nitrogen cycle, phosphorus cycle etc.
In all these cycles, the nutrient is being continuously cycled between the producer (plants & trees), consumers (animals & human beings) and the decomposers (bacteria’s etc.)
These nutrients continuously changes their form and place in order to be in a used efficiently.
Suppose an environmental change that causes the soil color to become much different occurs in both environments. Which of the following is true?
I'll need to see the choices/options in order to answer.
Answer:
Population 1 is more likely to adapt and survive than population 2 because there is more variation related to body color in population 1
Explanation:
That was the answer in study island :/
Three generations of a family afflicted with hemophilia are illustrated in the pedigree chart. Family members used the pedigree chart and the laws of genetics to predict the occurrence of the disease. From the information in the chart, one can determine that hemophilia is
A) sex-linked and occurs more in males than females.
B) autosomal and occurs equally in males and females.
C) sex-linked and no pattern of inheritance can be predicted.
D) autosomal and occurs more frequently in males than females.
Answer:
The answer is A. Sex-linked traits are more often expressed in males because they are typically carried by the X chromosome and they are also typically recessive. Males only inherit one X chromosome, so if the one they inherit is linked to the disease, they will express it no matter what. Females, on the other hand, can be carriers if they inherit one X chromosome with the disease. This is because their other X chromosome can be normal, which would dominate the expression of the disease on their other X chromosome.
When wind moves particles of sediment in a way that makes them bounce or leap, this movement is known as
When wind moves particles of sediment in a way that makes them bounce or leap, this movement is known as saltation.
Saltation is a type of sediment transport that occurs when wind blows over a surface that is covered in loose particles. The wind blows the particles along the surface, but they are too heavy to be carried in suspension. Instead, they bounce or leap along the surface, sometimes reaching heights of several meters.
Saltation is an important process in the formation of sand dunes. The wind blows the sand particles along the surface of the dune, and the saltating particles knock other particles out of place, which helps to build up the dune. Saltation can also be a destructive process. The saltating particles can erode the surface of the ground, and they can also damage crops and other vegetation.
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Final answer:
Saltation is the term for the movement of sediment particles that bounce or leap due to wind, affecting medium-sized particles such as sand.
Explanation:
When wind moves particles of sediment in a way that makes them bounce or leap, this movement is known as saltation. In the process of saltation, medium-sized particles such as sand are blown by the wind in short hops, staying close to the ground. Unlike smaller particles like silt or clay that move by suspension in the air, saltation involves sand-sized particles (diameter 0.1-0.5 mm) that are too heavy to remain suspended high in the air but can be lifted briefly above the surface. The other types of wind erosion, such as suspension and surface creep, affect different sized particles. Wind erosion is significant in shaping landscapes, especially in arid and semiarid regions where this phenomenon is more prevalent.
Chromosomes control cell processes. They do this by?
Answer:
coding for the production of all a cell's proteins
Explanation:
Answer:
Coding for the production of all cells protein
Explanation:
Chromosomes are long sequences of DNA that contain several genes and other sequences of nucleotides. In eukaryotic organisms, chromosomes are linear structures of highly stranded double-stranded DNA, normally found in the nucleus of cells, and may also be associated with proteins and RNA. In prokaryotic organisms, they have a circular or linear shape, not being present in the nucleus or associated with proteins.
In addition, chromosomes are the molecules responsible for controlling cellular processes. They do this by coding the production of all proteins in a cell.
A salt solution has a concentration of 200 g/L. How many grams of salt would be contained in 2 L of this solution?
Answer:
400g
Explanation:
Ok, so we have 200g per L of the salty solution.
we can take 200g*2L to get 400g in the 2L of solution
Therefore the answer is 400g/2L or 400g
the answer is 400 grams
15. Which of the terrestrial planets is the largest?
O A. Venus
| 0 B. Earth
o C. Mars
O D. Mercury
Hi!
Earth is the largest.
Hope this helps!
Final answer:
Earth is the largest of all the terrestrial planets, which include Mercury, Venus, Earth, and Mars. The correct answer is option A.
Explanation:
The question pertains to the relative sizes of the terrestrial planets in our solar system. Of all the terrestrial planets -- Mercury, Venus, Earth, and Mars -- Earth is the largest. When considering the question hint regarding weight and surface gravity, it's also notable that among the terrestrial planets (excluding the jovian planets), you would weigh the most on the surface of Earth due to its greater mass and consequently higher surface gravity compared to the other terrestrial planets.
The relationship between electricity and magnetism is called ?
The relationship between electricity and magnetism is called electromagnetism.
the relationship between electricity and magnetism is called Electromagnetism.
PLEASE HELP!!!!
Describe the hierarchical relationships between the universe, galaxies, stars, and solar systems.
20 points
Answer: Planets are in solar systems, solar systems are in galaxies, and galaxies are in the universe.
Explanation: Universe >> Galaxies >> Solar Systems >> Planets
Final answer:
The universe is the largest scale structure that encompasses everything, including all the galaxies, stars, and solar systems. Galaxies are large collections of stars, gas, and dust held together by gravity. Stars are massive balls of hot, glowing gas that are found within galaxies. Solar systems are smaller systems within galaxies that consist of a star, such as the Sun, and the various celestial bodies orbiting around it.
Explanation:
The hierarchical relationships between the universe, galaxies, stars, and solar systems can be understood in the following way:
Universe: The universe is the largest scale structure that encompasses everything, including all the galaxies, stars, and solar systems.Galaxies: Galaxies are large collections of stars, gas, and dust held together by gravity. The Milky Way is an example of a galaxy.Stars: Stars are massive balls of hot, glowing gas that are found within galaxies. They are formed from the collapse of gas and dust and are responsible for producing light and heat.Solar Systems: Solar systems are smaller systems within galaxies that consist of a star, such as the Sun, and the various celestial bodies orbiting around it, including planets, moons, asteroids, and comets.according to the map which animal would most likely avoid cold water
Answer:
Manatee (A)
Explanation: Looking the graphic, Manatees live near the Equator, where is "hot" water place, and if you notice the other place are near cold water where none of them will avoid it.
Modern thermal power plants generate power basically the same way the old steam engines do
true or false
Environmental Science B Exam
The statement, Modern thermal power plants generate power basically the same way the old steam engines do, is true.
Answer:
True.
Explanation:
Basically, the thermoelectric plants generate energy through a heated boiler where the water contained there will generate steam, that under high pressure, will move the turbines of a turbine of energy generator. Basically the same as the old steam engines generated energy.
After the movement of the turbines, the steam used goes directly to a condenser, where it will be subjected to low temperatures that will result in the transformation of the steam into water. This water returns to the boiler, starting the process once again.