"*Sea otters are native to the western cosst of North America. Between 1750 and 1850 , hunting had reduced the population from hundreds of thousands to only one thousand Individuals. In the early 1900 s, a small population of sea otters was discovered in Elkhorn Slough, an estuary in central California near a large human population center. The otters were then protected by the international fur seal treaty, which banned sea otter hunting. The sea otter population has rebounded to nearly three thousand individuals today. Otters live in kelp forests and eelgrass beds and feed on crabs and shellfish (Figure 1). Most herbivores in the habitat eat algae that grows on the eelgrass and not the eelgrass itself. If there is too much algae, the eelgrass does not receive enough light for photosynthesis. As the otter population has increased, the eelgrass habitat has increased. Recently, however, scientists have noticed the presence of two nonnative, predatory Invertebrate species that may be coloniaing the Elkhorn Slough, which would have been too cold for them three decades ago. Scientists have also observed that otters in the area are experiencing increased mortality because of an increase in harmful algal blooms, which occur as a result of nutrient pollution. The harmful algae are ingested by shellfish, which the otters eat. As otters were removed during the hunting years, there was a large decrease in the catches of fish species from the eelgrass habitats. Which of the following best explains why this decrease happened?
a. Otters are a keystone species, so their disappearance from the area affected the population size of one other species. b. Otters are a keystone species, so their disappearance from the area resulted in the collapse of an entire community. c. Otters have mutualistic relationships with many other specles, so thelr disappearance from the area affected the population size of another species. d. Otters have mutualistic relationships with many other species, so their disappearance from the area resulted in the collapse of an entire ecosystem. Explain your answer choice.

Answer: Nitrogen-fixing

Explanation: Nitrogen-fixing bacteria (shown here in a soybean root) are able to convert nitrogen from the air into a form that plants can use

Answer:

waning

Explanation:

i think, don't quote me on that

Answer:

wordare

Explanation:

ons loin any groot

Answer:

A. using larger units

Explanation:

Graphs can be used to display large amounts of numerical data and to portray the relationships between numerical values of different variables

When graphing data, what will make it more precise would be to ensure that it covers most of the space on the graph sheet. The correct option would, therefore, be B.

Making your graph to cover, at least, 2/3 of the graph space will ensure that your plots are visible and lead to a more precise graph.

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Answer:

TU PUEDES ;>

Explanation:

In 300, Troy, and Alexander, male same-sex eroticism is portrayed in different ways, but the extent to which these portrayals correspond to the realities of the ancient world varies.

In 300, the portrayal of male same-sex eroticism is minimal. The film primarily focuses on the battle between the Spartans and the Persians, with limited exploration of personal relationships.

While there are instances of male camaraderie and intimacy among the Spartan warriors, there is no explicit depiction of same-sex eroticism.

In Troy, there is a subtle portrayal of male same-sex desire between Achilles and Patroclus. Although the film does not explicitly depict their relationship as romantic or sexual, there are moments of emotional closeness and affection between them, suggesting a deeper bond.

However, the film does not fully explore the complexities of same-sex relationships in ancient Greece.

In Alexander, the film delves deeper into the exploration of Alexander the Great's relationships, including his close bond with Hephaestion. The film portrays their relationship as intimate and romantic, suggesting a same-sex erotic connection.

However, the extent to which this portrayal aligns with the realities of the ancient world is debatable, as historical records present varying interpretations of the nature of their relationship.

Overall, while these films touch on male same-sex eroticism to some extent, they tend to downplay or romanticize it, often adhering to contemporary sensibilities and audience expectations rather than providing accurate representations of ancient attitudes towards homosexuality.

The realities of same-sex eroticism in the ancient world were diverse and complex, and the films' portrayals may not fully capture this diversity.

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the base would be the beginning of a thing right?

and if it is then plants would be the base

but if it's not then I'm sorry,

but if it's the thing that all the things can eat (except plants) then maybe lizards

srry if I'm wrong ;-;

Answer:

convection currents

Explanation:

continental drift is a result of earth's moving plates. so it's convection currents

Answer:

Aphids, slime molds, sea anemones

Explanation:

hope this helps:)))))

Answer: D. all of the above

Explanation:

Answer:

be beneficial.

Explanation:

Mutations of DNA sequences of the frog genome that are inherited by offspring will be beneficial for the frog because this mutation in the genetic makeup of frog provides resistance in this new environmental conditions. This mutation occurs due to the exposure of cell's DNA to the environmental factor which gives benefit to the organisms to survive different condition which can't tolerate by their parents so this mutation is beneficial for that offspring of frog.

Answer:

no viruses are not considered living

Explanation:

Answer:

No

Explanation:

influenza is an infection (viral) caused by the influenza virus.

the influenza virus is a particle (acellular) thus not made up of cells

Answer: When the Sun emits more amount of energy than normal, "Solar flares and sunspots" occur, increasing temperature of Earth. Explanation: The Earth's temperature is governed by many factors

HOPE THIS HELPS

Answer:

DRJYNTRHJ7LY

Explanation:

Without the actual image, it is not possible to accurately determine the type of bacteria shown. However, I can provide some general characteristics of the bacteria you mentioned to help identify them.

Bacillus refers to rod-shaped bacteria, which appear elongated and cylindrical. These bacteria typically occur singly or in chains. Coccus refers to spherical or round-shaped bacteria. They can occur singly, in pairs (diplococcus), in clusters (staphylococcus), or in chains (streptococcus). Spirillum refers to spiral-shaped bacteria, which appear as curved or helical rods. They have a rigid cell wall and may exhibit a characteristic spiral shape. Cholera is not a specific bacterial shape but refers to a disease caused by the bacterium Vibrio cholerae. Vibrio bacteria are curved rods with a single polar flagellum, giving them a comma-like shape. Without further information or the image itself, it is challenging to definitively determine the type of bacteria shown. Microscopic characteristics such as shape, arrangement, and additional features are crucial in identifying bacterial types accurately.

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The frequency of recombination of 50% between two genes indicates that the two genes are likely to be located on different chromosomes, and abnormal meiosis has occurred.

Meiosis is the process of cell division that generates gametes such as sperm and eggs. During meiosis, homologous chromosomes exchange genetic information, resulting in new combinations of alleles. This exchange is known as recombination. The frequency of recombination between two genes is a measure of the likelihood of these genes being inherited together. When the frequency of recombination is 50%, it indicates that the two genes are likely to be located on different chromosomes.

This is because chromosomes assort independently during meiosis, and the probability of crossing over between two genes on different chromosomes is approximately 50%. If all offspring have combinations of traits that match one of the two parents, it indicates that no new combinations of alleles have been generated by recombination. This could be due to abnormal meiosis, such as non-disjunction or other chromosomal abnormalities that prevent the proper separation of chromosomes during meiosis.

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Answer:

Explanation:

Because of human-driven increased levels of carbon dioxide in the atmosphere, there is more CO2 dissolving into the ocean. The ocean's average pH is now around 8.1 , which is basic (or alkaline), but as the ocean continues to absorb more CO2, the pH decreases and the ocean becomes more acidic.

1st Page: Include separate in each question next time.

1) Carbon dioxide (CO2) is the greenhouse gas that has been most released into the atmosphere by human activity. Burning of fossil fuels like coal, oil, and natural gas for transportation, electricity generation, and other industrial processes releases large amounts of CO2 into the atmosphere. Deforestation and other land-use changes also contribute to increased CO2 emissions. CO2 is a major contributor to global warming and climate change, as it traps heat in the atmosphere and results in a warming effect on the planet. Other greenhouse gases, such as methane and nitrous oxide, also contribute to climate change, but CO2 is the most significant and has the greatest impact on the Earth's climate system.

2) The concept of the "heat trapping blanket" refers to the natural greenhouse effect that occurs in the Earth's atmosphere. The Earth's atmosphere acts like a blanket that traps some of the heat energy from the Sun that is absorbed by the Earth's surface, keeping the planet warm enough to support life. This is a natural and necessary process that has been occurring for billions of years. The Earth's atmosphere is made up of several gases, including carbon dioxide, methane, and water vapor, that have the ability to trap heat in the atmosphere. These gases are known as greenhouse gases because they act like the glass walls of a greenhouse, allowing sunlight to pass through but trapping the heat that is radiated back from the Earth's surface. activities, such as burning fossil fuels and deforestation, have increased the concentration of greenhouse gases in the atmosphere, particularly carbon dioxide. This has intensified the greenhouse effect, resulting in a warming of the Earth's surface temperatures, known as global warming. The "heat trapping blanket" analogy is often used to describe this process, as the increasing concentration of greenhouse gases in the atmosphere is like adding an extra layer to the blanket, making it thicker and trapping more heat. The consequences of global warming include rising sea levels, more frequent and severe weather events, and changes in the distribution of plant and animal species. In order to reduce the impact of global warming, it is important to reduce greenhouse gas emissions and promote sustainable practices that help to mitigate the effects of climate change.

3) The three "-spheres" that are being affected and changed by greenhouse gases are:

The atmosphere: Greenhouse gases such as carbon dioxide, methane, and nitrous oxide are accumulating in the atmosphere and trapping heat, causing the Earth's average temperature to rise. This is leading to changes in weather patterns, rising sea levels, and more frequent and severe weather events.

The hydrosphere: The increasing temperature of the Earth's atmosphere is causing the oceans to warm, leading to thermal expansion and rising sea levels. The oceans are also becoming more acidic due to the absorption of carbon dioxide from the atmosphere, which is having negative impacts on marine ecosystems.

The biosphere: Changes in temperature and weather patterns are affecting ecosystems and the distribution of plant and animal species. Some species are being forced to migrate to new areas in search of suitable habitats, while others are becoming endangered or extinct. The biosphere is also being impacted by ocean acidification, which can affect the ability of marine organisms to form shells and skeletons.

4) Reducing greenhouse gas emissions and mitigating the effects of climate change is a complex problem that requires a multi-faceted approach. Here are some potential strategies that could be used to address the issue, along with their criteria, constraints, and costs: Renewable energy: Transitioning to renewable energy sources such as solar, wind, and hydropower can reduce greenhouse gas emissions from fossil fuel use. Criteria for this solution could include the ability to generate electricity at scale, cost-effectiveness, and reliability. Constraints include the need for suitable locations for renewable energy infrastructure, limited storage capacity, and the intermittency of some renewable energy sources. Costs can vary depending on the specific technology used and the location of the infrastructure.

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Creaking joints in seniors may be due to age-related degeneration of cartilage, changes in joint fluid, or the development of osteoarthritis.

As individuals age, the cartilage that cushions joints may undergo degenerative changes. Over time, this can lead to a loss of smoothness and elasticity in the joint surfaces, resulting in joint creaking. Additionally, age-related changes in the synovial fluid, which lubricates the joints, can occur.

The fluid may become thinner and less effective in reducing friction between the joint surfaces. Another common cause of joint creaking in seniors is the development of osteoarthritis, a condition characterized by the breakdown of cartilage. Osteoarthritis can lead to joint inflammation, stiffness, and the production of sounds like cracking or creaking during movement.

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Two imbalances that are related are metabolic acidosis and hypochloremia because additional [tex]Cl^-[/tex] must be excreted to the kidney tubules to buffer the high concentrations of [tex]H^+[/tex] in the tubules.

Metabolic acidosis is a condition characterized by an imbalance in the body's acid-base balance, resulting in an increased concentration of hydrogen ions ([tex]H^+[/tex]) in the blood. This leads to a decrease in the bicarbonate ([tex]HCO_3^-[/tex]) levels, which act as a buffer to maintain pH balance. Hypochloremia, on the other hand, refers to a low concentration of chloride ions ([tex]Cl^-[/tex]) in the blood.

In the context of these imbalances, the kidneys play a crucial role in maintaining acid-base balance. To compensate for the excess [tex]H^+[/tex] ions in metabolic acidosis, the kidneys excrete more [tex]H^+[/tex] ions into the tubules. However, the excretion of [tex]H^+[/tex] ions requires a counter-ion, such as [tex]Cl^-[/tex].

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The production of Dextran allows Streptococcus mutans to colonize the mouth.

Dextran is a water-insoluble glucan that is created by some lactic acid bacteria using the enzyme dextransucrase. Streptococcus mutans are the most well-known producers of dextran. They contribute to the formation of dental plaque and tooth decay because dextran is water-insoluble and accumulates on the teeth's surface.

In summary, the production of Dextran allows Streptococcus mutans to colonize the mouth.

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Answer:

yes it does

Explanation:

Different numbers of muscle fibers can make up each motor unit: The size of motor units varies, as may the number of muscle fibers that each motor unit innervates. The correct answer is (D).

Compared to motor units regulating bigger muscles, motor units governing tiny movements, such as those in the muscles of the fingers, contain fewer muscle fibers per motor unit.

One specific motor unit's muscular fibers are always of the same fiber type: The muscle fibers frequently belong to the same fiber type within a single motor unit. This indicates that they share traits like contractile capacities and metabolic abilities. However, different fiber types might make up the various motor units within a muscle.

A muscle can contain various numbers of motor units: Muscles come in a variety of shapes, sizes, and compositions, as well as with varying numbers of motor units. The number of motor units a muscle contains is influenced by things including muscle size, function, and the level of accuracy needed during movement.

Because each of the statements about the motor unit is true, option D) All of the above is the accurate statement.

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Answer: Producers make food from the sun. Consumers eat producers or other consumers. Decomposers break down dead material and recycle it so it can be used by producers to make food.

Explanation:

Answer:

Codominant

Explanation:

Answer: the factors that increase cardiac output include:

--> Nervous stimulation and

--> Hypertrophy of the heart.

Explanation:

Cardiac output can be defined as the quantity of blood pumped into the aorta each minute by the heart. This is also the quantity of blood that flows through the circulation. There are factors that can cause increased cardiac output or that can lead to a hypereffective heart. They are:

--> NERVOUS STIMULATION: The combination of sympathetic stimulation and parasympathetic inhibition does two things to increase the pumping effectiveness or cardiac output of the heart. These include:

• it greatly increase the heart rate from the normal level of 72 beats/mum up to 180 to 200 beats /mom.

• it increases the strength of heart contraction, which is called increased contractility to twice it's normal strength.

--> HYPERTROPHY OF THE HEART: A long term increased workload, but not so much excess load that it damages the heart, causes the heart muscle to increase in mass and contractile strength in the same way that heavy exercise causes skeletal muscles to hypertrophy. This effect of increased muscle mass of the heart, allows the heart to pump much greater than usual amounts of cardiac output.

Answer: Part A. 1. 159.5mm, 3. If they go 16cm per 29 years it would take 90 years to go 50cm 4. probably because the earthworms don’t go below 1 meter deep so rocks don’t go deeper.

Explanation: