PLEASE HELP ME,

A feedback mechanism that serves to decrease the stimulus and bring a system back to
homeostasis is called a

A. negative feedback mechanism

or

B. positive feedback mechanism ​

Answer:

There are basically 4 components of Biosphere.

Explanation:

Biosphere is the collection of all ecosystems on earth and their interactions with each other. The Biosphere of earth consists the following components,

1. The Biota

All the living organisms including animals, plants, insects and bacteria is called the Biota.

2. Geosphere

Geosphere is the surface of biosphere that is composed of soil, rocks, mountains etc.

3. Hydrosphere

The hydrosphere includes all the water bodies like ocean, rivers, streams and lakes.

4. Atmosphere

Atmosphere is the climate that describes about the temperature, humidity, wind and rain fall in Biosphere.

Choice A or Choice D

Soil considered as an abiotic factor and a biotic factor. Because the soil is made out of dead organisms and dead twigs in also contains gravel and a biotic factor is features of the ecpsystem that are living or once were alive. that would be the dead organisms and twigs. abiotic factor are nonliving things in the organisms like the gravel.

Answer:

yes

Explanation:

There are two categories of these factors: abiotic and biotic. Abiotic factors are the non-living parts of the environment that can often have a major influence on living organisms. Abiotic factors include water, sunlight, oxygen, soil and temperature

Answer:

the second one

Explanation:

Answer:

X= Spherical, Y= E.coli

Explanation:

Coccus meaning sphere.

They are controlled by single gene with two alleles and other single jeans with multiple alleles

Final answer:

Human traits are controlled by polygenic inheritance, nature-nurture interactions, and natural selection, with factors ranging from multiple gene influences to environmental pressures shaping phenotypic diversity.

Explanation:

Human traits are controlled in three primary ways. Firstly, most traits are polygenic, being influenced by more than one gene, examples include height, skin color, and weight. Secondly, nature-nurture interactions play a significant role; for instance, a person may have a genetic predisposition for height, but environmental factors like nutrition can influence their actual growth. Lastly, natural selection can impact traits over generations, particularly in how phenotypes distribute within a population due to selective pressures from the environment. For example, some traits like skin color or lactase persistence have evolved due to environmental selection pressures.

One cat carries heterozygous long haired traits SS and its mate carries homozygous short haired traits ss

a trait that is always expressed. ... One cat carries heterozygous, short-haired traits (Ss), and its mate carries homozygous long-haired traits (ss). Use a Punnett square to determine the probability of one of their offspring having short hair.

Using a Punnett square, the probability of an offspring from a heterozygous short-haired (Ss) and homozygous long-haired (ss) parent having short hair is 50%, since the resulting genotypes would be Ss and ss in equal proportions.

To determine the probability of an offspring having short hair from a parent carrying heterozygous short-haired traits (Ss) and another carrying homozygous long-haired traits (ss), we use a Punnett square. When S (short hair) is dominant over s (long hair), the possible genotypes for their offspring are Ss and ss.

The Punnett square is as follows:

Therefore, there is a 50% chance that one of their offspring will have short hair.

Answer:

C

Explanation:

Due to him being cold, his RESPONSE is to shiver.

C shivering is a RESPONSE of the body when it goes below its normal temperature. Shivering helps the body move blood around your organs to help you warm up

Low levels of oxygen in/by the root zone causes soil & plants to turn deficient and die .

another reason is because anaerobic microbes that have gotten waterlogged create a toxic/bad waste that harms its surrounding living plants.

Answer:

Option A ,the US is a net exporter of fossil fuels

Explanation:

In the recent time, the prices of fossil fuels (i.e crude) oil fell very low  due to which the prices of processed petroleum products such as petrol, diesel, etc reduced to the a very low value in last 30 years. This all happened because new oil reserves have been explored in US  due to which the the price of crude oil has dropped globally.

In developing countries like India, price of petrol and diesel is one of the political agenda.

Thus, fossil fuel use in the United States make the u.s. vunerable to the political wishes of foreign countries

Option A is correct

U.S. vulnerability due to fossil fuel reliance is linked to the fact that it imports much of its petroleum, making it subject to foreign pricing and political pressures (option c).

The reliance of the United States on fossil fuel imports makes the nation vulnerable to the political whims of foreign countries primarily because the U.S. imports a substantial portion of its petroleum from these countries. This dependence on foreign oil means that the US is susceptible to fluctuations in fuel prices, determined by the exporting countries or global markets (option c). Additionally, the geopolitics surrounding fossil fuels can compel the United States to engage in foreign policies or military actions to secure energy resources, influencing its political and economic decisions.

Historically, the United States has developed policies to reduce reliance on Middle Eastern oil by diversifying its sources, turning to countries like Canada, Mexico, Venezuela, and Nigeria. The presence of oil reserves within a nation can have a massive economic impact, providing jobs and dividends to investors, influencing global geopolitics, and sometimes leading to power imbalances and conflicts over resources.

Answer:

I would write a question about relationships between predators and prey of a given ecosystem.

Explanation:

An example question is:

a.) "Draw a predator-prey graph that shows the relationship between lions and zebras."

b.) "Explain the trends of the above graph with regard to increase and decrease of the prey of predators."

I hope that made sense :)

Good luck.

Answer:

He could ask questions related to the eating habits of these organisms, if they have nocturnal or daytime habits and if it is a predator and what are their predators.

Explanation:

In an ecosystem, a scientist is able to observe countless different organisms. These organisms can trigger a scientist's curiosity, causing him to pose some questions about the species he doesn't know.

In relation to animals, the scientist may ask:

Answer: 10: 6

12: 3 seconds

Explanation:

Answer:

In July 1997, the Senate unanimously passed a resolution (S. Res. 98) stating that it would not ratify any global climate treaty that would seriously harm the U.S. economy or that failed to require developing countries to reduce their emissions within the same time frame as the developed countries.

Explanation:

Answer:

I think it is D

Explanation:

Driven by convection, the air currents will most likely move from the land towards the water as the warm air over the heated land rises and the cool air over water descends.

Based on your question, the air currents will most likely move from the land toward the water. This movement is driven by convection, a process by which heat is transferred within fluids. When the land is heated by the Sun, the air above it also gets warm. This warm air is less dense, which causes it to rise. Meanwhile, the cool air above the water which is denser descends creating a pressure difference. To equalize this pressure difference, the warm air above the land moves towards the cool air above the water, contributing to the air currents.

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DNA manages all the cells activities and "tells" them what to do. DNA also gives coded regulations for the strawberry so that it can create proteins.

Humans and nearly all other species carry their genetic information in DNA, also known as deoxyribonucleic acid. The DNA of an individual can be found in almost all of their cells.

The majority of DNA is found in the cell nucleus (where it is known as nuclear DNA), but there is also a tiny quantity of DNA in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Adenine (A), guanine (G), cytosine (C), and thymine (C) are the four chemical bases that make up the code that stores the information in DNA (T). More than 99 percent of the 3 billion bases that make up human DNA are the same in every person.

Therefore, DNA manages all the cells activities and "tells" them what to do. DNA also gives coded regulations for the strawberry so that it can create proteins.

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because the world is spinning at a different angle and speed as it its orbiting the sun.

Stars appear to move across the sky at night because Earth spins on its axis and it is moving around the Sun. Because the Earth spins half a turn in a night, a star visible low in the east early in the evening will appear to rise and move in an arc across the southern sky and set in the west before morning. Stars in the center of the southern sky will disappear below the western horizon halfway through the night. Also, other stars will rise in the east all through the night. The stars that can be seen are always in the sky at some time during the day, but some rise while the sun is in the sky and are hidden by the glare of the bright sky.

Hope this helps!

Answer:

C) Littoral Zone

Explanation:

Turtles on the shoreline in vegetated areas as well as the shallows are looking for food. The best areas are any channels on the lake.

Answer: Littoral Zone

Explanation:

The littoral zone or the nearshore of a lake can be defined as the place along seashore. This zone has plenty of food options, some from the sea shore and some from water.

Turtles are mostly found in this region so that they can eat food from water as well as from the vegetation that lies at the shoreline.

Hence, the correct answer is option C

Final answer:

Younger men typically have the highest percentage of body water content due to greater muscle mass and lower body fat compared to women. As age increases, the percentage of body water generally decreases for all adults.

Explanation:

The question pertains to the percentage of body water content in different demographics. Water accounts for a significant portion of the human body, constituting about 50-70% of an adult's body weight. The water content is inversely related to the fat content, which means that individuals with less body fat tend to have a higher percentage of body water. Considering that men have greater muscle mass and a lower body fat percentage compared to women, and because muscle tissue contains more water than fat tissue, younger men typically have a higher percentage of body water than younger women. As we age, the percentage of body water declines to as low as 45% in older adults. Therefore, between younger women, younger men, older women, and older men, younger men would generally have the highest percentage of body water content.

They all attack different parts of the body. Dermatitis is on the skin, gastritis deals with the intestines, and bronchitis is affecting the airways including the lungs. *What is the third answer choice?*

Answer:

the answer is D. All three patients have inflammation but in different areas of the body.

Explanation:

Answer:

D. Using only geothermal energy is a sustainable practice.

Explanation:

Geothermal energy is heat derived within the sub-surface of the earth.

The statement that depicts sustainable practice is using only geothermal energy (option D).

Sustainability refers to a way of configuring civilization and human activity so that society, its members and its economies are able to meet their needs and express their greatest potential in the present, while preserving biodiversity and natural ecosystems, planning and acting for the ability to maintain these necessary resources for future generations.

In sustainability practice, the safety of the environment is the major focus. Therefore, the use of natural resources such as geothermal energy is a sustainable practice.

Therefore, option D is correct.

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Answer:

It should be D but selective breeding would work because of the selection of dog breeders trying to get new dogs such as a cockapoo which is a cocker spanole and a poodle. Also many other dog breeds that were selected to try out and breed.

Explanation:

Answer:

B. Selective breeding

Explanation:

Selective breeding refers to mating between parent organisms having desired features. This is done to obtain the progeny carrying the desired features from both parent organisms.

Selective mating between existing varieties of dog carrying desired traits gave rise to many new varieties that had features of both the parent varieties. Continued selecting breeding between existing varieties produced several new varieties of dogs.  

Answer:

Chemical Energy is released when bonds form in a chemical reaction, often producing heat as a by-product.

Mechanical Energy is the sum of kinetic and potential energy in an object that is used to do work. In other words, it is energy in an object due to its motion or position, or both.

Thermal Energy is what we call energy that comes from the temperature of matter. The hotter the substance, the more its molecules vibrate, and therefore the higher its thermal energy.

Electrical Energy is caused by moving electric charges called electrons. The faster the charges move, the more electrical energy they carry.

Explanation:

The answer is unquestionably C.

The correct statement about the difference between Animalia and Plantae kingdoms is the following:

They are multicellular organisms and enjoy a high level of specialization in tissues, they are heterotrophic beings, which means that they feed on other living beings and move autonomously.

It is the kingdom that brings together all forms of terrestrial plant life (trees, shrubs, grass, etc.) and all aquatic algae, as long as they carry out some form of photosynthetic nutrition.

Therefore, we can conclude that the Animalia kingdom is distinguished from the Plantae kingdom by lacking chlorophyll (they do not photosynthesize) and are heterotrophs.

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Human populations are not strictly limited by ecosystem carrying capacities due to their ability to alter their environments and improve resource availability. However, there are natural limits to growth, and ongoing human expansion poses risks to sustainability and biodiversity. Technological advancements have historically increased carrying capacity, but concerns about ecological constraints and environmental health remain.

Human populations may not be strictly limited by the carrying capacity of their ecosystems due to their unique ability to adapt and modify their environment. Unlike other species, which directly depend on the carrying capacity defined by resource availability, humans have developed multiple ways to increase the resources available to them. Advancements such as the agricultural revolution, the industrial revolution, and modern technological innovations like desalination, solar energy harnessing, and potentially nuclear fusion, have continually shifted the perceived carrying capacity.

However, this does not mean that human population growth can continue infinitely. The concept of limits to growth suggests that there are natural boundaries to how much the Earth can support, considering factors like the photosynthetic capacity of the biosphere, biodiversity loss, and the increasing amount of atmospheric carbon. Long-term exponential growth in human populations poses significant risks such as famine, disease, large-scale death, and social strain manifesting in problems like increased crime.

Furthermore, while humans can indeed alter their environment to support larger populations, this often comes at a cost to other species and the natural ecosystem as a whole. The modification and appropriation of habitat for human use, including through practices like artificial selection for high-yield crops, can lead to environmental degradation and loss of biodiversity. These actions can have detrimental effects on the Earth's overall health and its ability to sustain human populations in the long term.

producers will increase because a predator will be going away but consumers will decrease because teritary consumers will have to eat

If muskrats were removed from a wetland ecosystem, it would disrupt the balance. The primary consumers' populations could increase, leading to overconsumption of producers and possibly a reduction in biodiversity which cascades to other levels of the food web. The ecosystem might recover over time, however, the state may differ from the original.

Removing muskrats from a wetland ecosystem would likely disrupt the equilibrium of the ecosystem. As muskrats, which are secondary consumers, are removed, there will be a change in the population of the species they prey on, which are often primary consumers such as insects and mollusks. These primary consumers could increase in number, potentially leading to overgrazing or overconsumption of the producers (plants and algae).

In turn, this can lead to a decrease in the amount of producers, which would also affect other animals in the ecosystem that rely on these resources. This ripple effect might cause a drastic decrease in biodiversity and could cause irreversible damage to the ecosystem, leading to potential collapse of the entire food web.

The loss of primary producers would initially lead to a disruption in the food web, however, nature has a way of adapting to changes over time and the ecosystem could recover, although it might not be in the same state as before.

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Facilitated Diffusion

Active transport uses carrier proteins to move molecules against a concentration gradient, requiring energy in the form of ATP, as seen in the sodium-potassium pump of nerve cells.

The process that uses proteins to move molecules against a concentration gradient is known as active transport. During active transport, carrier proteins or pumps use energy, usually in the form of ATP (adenosine triphosphate), to move substances from an area of low concentration to an area of high concentration. This is crucial for maintaining the necessary concentrations of ions and other substances for cell function, despite the passive movements that tend to even out concentrations.

Examples include the sodium-potassium pump in nerve cells, which is essential for transmitting messages to the brain.

Answer:Recombinant DNA

Explanation:Recombinant DNA is basically a genetically modified DNA that is produced in the laboratory by bringing together different strands of DNA and causing them to bond in order to form a new genome or gene sequence and the whole procedure in performed in Vitro (in laboratory)

The DNA sequence is then inserted into the host to induce specific type of responses.

Answer:  The benthic invertebrates would decrease in population size because they are eaten by the sea ducks and the phytoplankton would increase in population size.

Explanation:

Answer:

As tertiary consumers, bald eagles depend on all the levels below them for energy. If their population increases, the ecosystem wouldn’t be able to support this growth because the population of prey animals—sea ducks and fish—would rapidly decrease. This decrease might cause the populations of primary consumers to increase. As a result, primary consumers might feed more on the producers. Over time, there may not be enough producers to maintain the food web.

Explanation:

It is an example of ecosystem. The lion eats its prey and the vulture then eats whatever is leftover. The vulture benefits and the lion is not harmed and doesn't benefit from it. A relationship in which one organism benefits and the other is harmed.

Answer: C

Explanation In any of the answer choices doesn't say tat its possible copper to conduct electricity. But in C its says  it  can exchange electricity.

It is the first one in order for transcription to occur