A population of squirrels lives in a mature forest in Virginia's Great Dismal Swamp. After a hurricane, 90% of the oak trees are destroyed by the rains and high winds. Which graph best illustrates the impact the loss of oaks on the squirrel population?
A) Graph A
B) Graph B
C) Graph C
D) Graph D

ANSWER IS B) GRAPH B

Both ice cores and tree rings are instrumental in studying past climate changes, with ice cores revealing atmospheric conditions and tree rings indicating climatic variations through their width and density.

Both ice cores and tree rings can be used to see how climate has changed over time. Ice cores are samples from polar ice that provide a record of past climates, revealing information such as atmospheric gas concentrations and particulates that reflect volcanic eruptions and human activities. Tree rings, on the other hand, can show variations in climatic conditions based on their width and density. Wide rings indicate wetter and warmer years, while narrow rings suggest drier and colder periods. Because some trees can live for thousands of years, their rings can inform us about regional climate changes over long time periods.

Answer:

You did not provide the Venn Diagram but maybe this would help you out.

There are ways molecules move in and out of the cell membrane and they can be categorized as Passive or Active transport.

Here are some descriptions of passive transport, active transport, and both.

Active Transport                 Both                        Passive Transport

-Uses energy                 -Moves across            - form of diffusion

-Moves from low            cell membrane         -   Moves from high

to high concentration                                   to low concentration

Hopefully, this will help you fill in your Venn Diagram

The label that belongs in the region marked X in the Venn diagram that compares active transport and passive transport across the cell membrane is Uses energy to work.

In the Venn diagram comparing active transport and passive transport across the cell membrane, the region marked X corresponds to the label "Uses energy to work."

This label accurately reflects the key characteristic of active transport processes.

Active Transport:

Active transport is a cellular process that requires energy to move molecules against their concentration gradient, from an area of lower concentration to an area of higher concentration.

This energy is typically derived from ATP (adenosine triphosphate).

In active transport, proteins embedded in the cell membrane, such as pumps and carriers, actively transport ions or molecules across the membrane, promoting the movement against the natural flow.

Passive Transport:

On the other hand, passive transport refers to the movement of molecules across the cell membrane without the input of energy.

This process occurs along the concentration gradient, from an area of higher concentration to an area of lower concentration.

Passive transport mechanisms include simple diffusion, facilitated diffusion through channel or carrier proteins, and osmosis.

The label "Uses energy to work" appropriately characterizes the unique feature of active transport, distinguishing it from passive transport mechanisms that do not require additional cellular energy for the movement of molecules across the cell membrane.

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Answer:

Producers, or autotrophs, make their own organic molecules. Consumers, or heterotrophs, get organic molecules by eating other organisms.

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

In a food chain, each organism occupies a different trophic level, defined by how many energy transfers separate it from the basic input of the chain.

Food webs consist of many interconnected food chains and are more realistic representation of consumption relationships in ecosystems.

Energy transfer between trophic levels is inefficient—with a typical efficiency around 10%. This inefficiency limits the length of food chains

Explanation

Hope this helps

Final answer:

Food chains and food webs illustrate feeding relationships and energy flow in ecosystems, with food chains being linear and food webs displaying interconnected networks.

Explanation:

Food chains and food webs both depict feeding relationships in ecosystems, showing the flow of energy and matter. While food chains are linear sequences of who eats whom, food webs are interconnected networks that display multiple feeding relationships among organisms.

The strengths of food chains lie in their simplicity and clarity in illustrating one specific path of energy transfer. On the other hand, food webs offer a more comprehensive view of an ecosystem, showcasing the complexity of interconnections between various organisms.

Answer:

The helicopter was a major breakthrough in transportation that increased the ability to transport goods across the country.

Explanation:

The helicopter was a major breakthrough in transportation that increased the ability to transport goods across the country. The correct option is A.

Transportation is the movement of goods and people from one location to another, as well as the various means by which such movement is accomplished.

The helicopter was a significant transportation major advancement that increased the ability to transport goods across the country.

Thus, the correct option is A.

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Answer: the right answer is D

Explanation: closed lake has no outlet stream. This is how a closed lake is different from an open lake.

Answer:

When the inner core shrinks and the outer atmosphere expands thereby giving red color to the star.

Explanation:

When the hydrogen with in the core of a  star gets exhausted, the nuclear reactions taking place in the inner core move outwards towards the atmosphere of the star in search of fuel. Due to this, the star expands and become cool and red. This process continues till the star convert into red giant and all the available fuel (hydrogen) is consumed.  

Due to expanding atmosphere,  the inner core starts shrinking due to gravity. The pressure and temperature also increases  in the middle till nuclear fission starts again but this time it will use helium instead of hydrogen.

You can determine a star is about to turn into a red giant when it is in its main sequence stage where it is expected to continuously fuse hydrogen to helium which generates light and heat, but stops fusion as a result of running out of hydrogen fuel in its core.

The moment fusion stops, gravity takes places and this will lead to the compression of the star into a smaller and tighter unit. Hence it stops being a main sequence star, and automatically becomes a Red Giant.

A star usually commences its existence as huge ball of gas, and pass through various stages in its lifetime to end as its remnants. The life cycle of a star is in seven stages which are: the Giant gas cloud stage, the Protostar stage, the T-Tauri stage, the Main sequence star stage, the evolution into Red Giant stage, the fusion into Heavier Elements stage and the Supernovae stage.

Basically, a red star giant is a dying star. A star spends most of its lifetime as a main sequence star before transforming into a red giant. When a main sequence star exhausts its hydrogen, it is ready to become a red giant, and as such, temperature within and the outer of the stellar core begins to increase as a result of the collapse of core propelled by gravity.  

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Final answer:

The correct answer is hazardous waste.

Explanation:

The correct answer is d. hazardous waste.

The other options - abandoned tires, raw sewage, and animal carcasses - are all examples of transboundary health hazards along the U.S.-Mexico border. These hazards can pose risks to human health and the environment. For example, abandoned tires can collect water and become breeding grounds for mosquitoes that carry diseases like Zika and dengue fever. Raw sewage and animal carcasses can contaminate water sources and spread pathogens, leading to waterborne diseases.

On the other hand, hazardous waste refers to chemicals and substances that are harmful to human health and the environment. While hazardous waste can be a significant health hazard, it is not specific to the U.S.-Mexico border and can be found in various locations worldwide.

Final answer:

Among the given options, animal carcasses are the least likely transboundary health hazard along the U.S.-Mexico border compared to the well-documented issues of abandoned tires, raw sewage, and hazardous waste which affect environmental and human health on both sides of the border.

Explanation:

The question of which one of the following is not a transboundary health hazard along the U.S.-Mexico border' requires identifying the item from the list that is not typically involved in cross-border environmental health issues. Transboundary health hazards are concerns that affect both sides of a geopolitical border and must be managed cooperatively by the nations involved.

Among the given options (abandoned tires, raw sewage, animal carcasses, and hazardous waste), animal carcasses are less commonly seen as a transboundary issue compared to the others which are well-documented problems. Abandoned tires serve as breeding grounds for mosquitoes leading to the spread of disease, raw sewage can pollute waterways affecting human health, and hazardous waste can contaminate land and water, posing significant health risks.

Answer:

Explanation:

I wonder who makes these questions sometimes. It can also be proven false.

I guess you should answer true, but I'd be careful about what the accepted answer is. A hypothesis can be proven true. If you were going to try and prove that rain water is part of the water cycle, you could devise a test that would show it to be true.

It is based on an educated guess and it is a flat statement, not a question.

Rainwater is part of the water cycle.

Would be an example.

Answer:

D. By blocking fish migration.

Explanation:

The pictured waterfalls are artificial.

The construction of the wall to raise water level for the falls to be created cuts the contact between marine organisms.

The fish on the other end of the fall cannot freely migrate to the other side.

This is because the falls are too dangerous for them and can lead to their death.

This means that the pictured method of power generation is not environmental friendly.

In an ecosystem where hydroelectric dams are constructed  over water bodies it blocks the migration of fishes.The correct option is D.

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .In an aquatic ecosystem where fishes reside they migrate for the purpose of reproduction. Building hydroelectric dams on water bodies blocks the way for fishes when they migrate.

Thus, hydroelectric dam impacts the environment by blocking fish migration.The correct option is D.

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In Meiosis they would be identical

Answer:half

Explanation:

No it is not balanced because there are four oxygen atoms in H2SO4 while there 5 oxygen atoms in the reactants side

Answer:

It increases survivability hence became an advantage in evolution

Explanation:

Culture is shared ideas, behaviors, language, and etcetera among a group of individuals. Culture improves cooperation between individuals hence improving the survivability of human species. Cooperation spans socials realms from shared responsibility in raising and feeding children to division of labor hence improving efficiency.

Answer:

West Nile virus (WNV) is the leading cause of mosquito-borne disease in the continental United States. It is most commonly spread to people by the bite of an infected mosquito. ... About 1 out of 150 infected people develop a serious, sometimes fatal, illness.

Answer:

C

Explanation:

C is the only answer that is acceptable. The evidence does not support the hypothesis. It is the best reason for not accepting something as fact.

D is not a good answer. Consensus sometimes plays a role in a scientific decision: no one would seriously propose that "The Earth is Flat" isn't ruled by consensus, but it is also proven wrong other ways.

B is not the reason Nessy isn't accepted. It is a lack of clear undisputable evidence that is the problem

A The quotation says that there is shadows and movements in the lake, but no other signs of Nessy

Answer:

d

Explanation:

A hawk if you have any questions I will explain this answer

The organism at the top of the energy pyramid for this ecosystem would be a hawk

The hawk is the most carnivore animal that does have any predators in the image.

The primary producer takes its energy from the sun. Here, the primary producer is grass. Above producers on the pyramid are the consumers, they are called the primary consumers. Here, the primary consumers are the mouse and the grasshopper. The hawk is the only organism in this ecosystem that does not have any natural predators.

Thus, Hawk will be at the top of this energy pyramid.

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Answer:

The correct answer will be option-D.

Explanation:

According to the International Astronomical Union, a planet must satisfy three criteria to be a planet :

1. It must be an independent object which orbits around a star (in our cosmos-Sun).

2. It must have the mass to have its own gravity which forces it to have  

a spherical shape

3. It must be large enough to dominate its orbit as its gravity should clear away any other objects.

Thus, option-D is the correct answer.

Deer graze through the grass lands becuase biotic pertains to living things

Answer: Option C

Explanation:

The ecosystem consists of both biotic factors and abiotic factors.The living component of the ecosystem is known as the biotic component and the non living component of the ecosystem is known as abiotic component.

The interaction between these two components makes a complete ecosystem. Here the option Deer graze through the grassland is an example of a biotic component interacting with the environment.

I thought it was (d) but I might be wrong

Answer: C) none; emissions increasing

Explanation: I just had this on USAtestprep

Answer:

Weathering is the breakdown of rock into smaller particles through mechanical or chemical means. Erosion is the process by which weathering products are carried away.

Mechanical weathering simply breaks rock into smaller fragments. Chemical weathering actually changes the mineral composition of rock.

Hydrolysis and oxidation are similar in that both involve chemical reactions between a mineral and another material. Hydrolysis is a chemical reaction between a mineral and water. Oxidation is a chemical reaction between a mineral and oxygen.

Exfoliation is the cracking of rock caused by a decrease in pressure. It occurs when a mass of rock is exposed by weathering and removal of the overlying rock, which decreases pressure on the rock. As a result, the rock expands, which causes the rock to crack.

In the scenario, weathering occurs when tiny bits of sand and shell in the waves loosen bits of sediment from the rock. Erosion occurs when the waves carry away those bits of sediment.

Explanation:

all of those are the correct answers

All questions deal with the impact of earth's endogenetic and exogenetic factors. Which include mass wasting, physical, chemical and biological erosion.

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Answer:

Genetic engineering has its grass roots from the recombinant technology.

Explanation:

Genetic engineering is seen to have started from a scientists activity which involved restriction enzymes and DNA ligases that were used by Paul Berg in 1972 to create the first recombinant DNA molecules. A monkey virus which is SV40 was combined with a lambda one. Following that, the results of the experiment and attempts were further investigated by other scientists and later, the first plant that underwent genetic engineering was the plant tobacco.

According to the idea of graded bedding, we can conclude the following: B. That the largest particles are younger.

A rock cycle is a concept that is used to describe and illustrate the continuous chemical and biological processes that leads to the formation of a rock, its transformation from one kind to another, its destruction and reformation over a specific period of time.

Additionally, rock strata (layers) that are found in various parts of the world are usually unique and different from one another because they are all composed of distinct geological history of planet Earth.

According to the idea of graded bedding, we can conclude that the largest particles are younger because the largest particles are at the top rock layer.

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Answer:

The eukaryotic cell is 20 micrometer across.

Explanation:

In biology, the unit of living organisms is the cell that is too small and can not be seen with a naked eye. However, there are some cells in the microorganisms that have a considerable range of size.

This variation in size is found among the prokaryotic and eukaryotic cells.

The prokaryotes are up to 0.2 µm to 50 µm, which are an exception among the organisms. However eukaryotic cells have a diameter in the range of 5 to 20 µm.

Answer:

Where is the story that goes with it?

Answer:

I mean this has to be referencing Jurassic World right? He was never keen to letting them out in the first place.

Explanation:

In the first movie he explains how the only reason he has a bond with them was raising them from young. This is hinted in flashbacks during both movies. They're extremely intelligent as we noticed in the first few movies of the entire series. While that may be true there is no real reason for them to be out in the field as they are natural killers not trained (this was even clearly exampled in the last movie with laser targeting yes it worked for a second but when it was free it went for everything in it's path.)

Answer: Light energy from the sun

Answer:

where is the model?

Explanation:

I NEEEEEED IT

Answer:

You could have created a mutation in the DNA strand that changed the color or you didn't copy the DNA verbatim.

Explanation:

The error made in cloning process could be because of genetic recombination.

For example: Lets assume that tan color is dominant (T) over brown color (t). If a tan color fluffy having genotype Tt is cloned i.e., crossed with Tt, it will produce the offspring having genotype TT, Tt, Tt and tt.

TT, Tt and Tt will produce tanned progeny whereas tt will produce brown progeny.

Hence, genetic recombination will leads to variation which could be responsible for the error made in the cloning process that would cause this clone to be dark brown instead of tan.

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The sensory receptors for the eyes are photoreceptors, for the ears are hair cells, and for the nose are olfactory receptors. These specialized cells help us perceive light, sound, and smell, respectively.

The sensory receptors for the eyes, ears, and nose are specialized cells that help us perceive our environment. The eyes have sensory receptors called photoreceptors, which are sensitive to light and allow us to see. The ears have sensory receptors known as hair cells, which respond to sound vibrations and enable us to hear. Finally, the nose has sensory receptors referred to as olfactory receptors, which interact with airborne molecules and are essential for our sense of smell.

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The sensory receptors for the eyes are photoreceptors, for the ears are hair receptors, and for the nose are olfactory receptors.

The sensory receptors for the eyes are the photoreceptors located in the retina. These include the rods (which detect light and work well in low light conditions) and the cones (which detect color and work well in bright light conditions).

The sensory receptors for the ears are the hair receptors that are wrapped around the base of hair follicles in the inner ear. These receptors detect hair movement and help with the perception of sound.

The sensory receptors for the nose are the olfactory receptors located in the olfactory epithelium of the nasal cavity. These receptors detect different odors and are responsible for our sense of smell.

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Answer:

I believe that the answer would be either b or c.

Explanation:

Hi!

It would be 1, because the white fur is a form of camouflage.

Hope this helps!

An adaptation helps an organism to survive. i.e, option A is correct.

Camouflage, also known as cryptic coloring, is protection or strategy used by organisms to hide their presence and mix in with their surroundings. Camouflage is a technique used by organisms to conceal their presence, appearance, and mobility. This allows predators to sneak up on prey and prey to avoid predators.

Polar bears have white fur to help them blend in with their surroundings. In Arctic conditions, their coat is so perfectly camouflaged that it can be mistaken for a snow drift. Surprisingly, the polar bear's coat lacks white pigmentation; in reality, the polar bear's skin is black and its hairs are hollow.

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Answer:

11>twenty five -fourteen

Explanation:

25-14

Answer:

Tropical rainforest is the answer