Does anyone know What is the answer

Energy at the top of the food web , energy flow through the ecosystem Herbivores or primary consumers form the second level. At each step in the food chain, only 10 percent of the energy is passed on to the next level, while approximately 90 percent of the energy is lost as heat.

A food web is all the interactions between species within a community that involve the transfer of energy through consumption. A food web includes the various food chains in the environment. These types of interactions occur between producer and consumer and between predator and prey.

Energy transfer begins in plants. Plants are able to convert sunlight into a chemical form of energy through the process of photosynthesis. One of the end products of photosynthesis is glucose, a sugar in which energy is stored. Plants are called producers because they produce their own energy without consuming another organism.

Animals are called consumers; they must consume plants and other animals to obtain energy. Animals that feed only on plants are called herbivores or primary consumers because they eat the producers. Animals that feed on other animals are called carnivores. They are called secondary consumers if they eat primary consumers.

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Answer:

if you have ah party wen we are pouring for the house and I

Answer: Organisms evolve over time due to changes in heritable physical characteristics.

Explanation:

There are a few things to look for when distinguishing between a nonscientific theory and a valid scientific theory. One thing to consider is if there are any published literature, experimental studies, and data available to support the theory. Most scientific theories have data and information tied to them. Another factor to examine is who has developed the theory. A scientific theory will always be supported by evidence with large quantities of data and testing. An example of a scientific theory is the theory of evolution, which observes changes in heritable physical traits over time in an organism. A hypothesis might be that all organisms evolve at the same rate.

Organisms evolve over time due to changes in heritable physical characteristics is an example of a scientific theory known as evolution. Thus, option C is correct.

Evolution is the scientific theory that explains that "a change in the characteristics of biological populations over next generations.

According to scientists RNA is the first existing molecule on earth that replicate by itself and the process of evolution lead to advanced forms of life.

These characteristics are easily trasfered from one generation to other generation.

Therefore, Organisms evolve over time due to changes in heritable physical characteristics is an example of a scientific theory known as evolution. Thus, option C is correct.

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The structure that is situated inferior to the conus medullaris of the spinal cord is called the cauda equina.

The cauda equina is a bundle of nerves that originates from the lower end of the spinal cord and extends downwards to the lumbar and sacral regions. It is named after its resemblance to a horse's tail, as it is composed of multiple nerve roots that fan out like horsehair.

The cauda equina plays a crucial role in transmitting sensory and motor signals between the lower limbs and the spinal cord. It is responsible for controlling voluntary movements and reflexes in the legs, as well as transmitting sensory information such as pain, temperature, and touch from the lower limbs to the brain.

Injuries or disorders affecting the cauda equina can lead to serious health problems, including paralysis, loss of sensation, and bowel or bladder dysfunction. Therefore, it is essential to diagnose and treat any issues related to this structure promptly to prevent further complications.

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Answer:

It requires the energy-releasing cleavage of high energy bonds of 18 ATPs and 12 NADPHs.

Explanation:

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brainliest pls?

Answer:

the action or fact of making excessive use of a resource.

Answer:

c. When a rose bush cell divides, it copies its parts then divides into two cells and

d. The bacterium was formed when another bacterium divided

Explanation:

C is correct because the cells inside are part of a larger being (the rose bush), when they divide they are simply creating more cells (hence making the rose bush grow).

D is correct because bacterium are unicellular organisms, meaning they are themselves single cells that are organisms, unlike the rose bush consisting of  many cells.

The absorption and reflection are fundamental processes that determine the availability and distribution of energy within the biosphere. They influence the functioning of ecosystems, drive ecological processes, and shape the overall dynamics of our planet's life-supporting system.

They affect the distribution, transformation, and utilization of energy within ecosystems, ultimately shaping the overall functioning of the biosphere.

Absorption refers to the process by which plants and other photosynthetic organisms capture solar energy, primarily in the form of sunlight.

Through the process of photosynthesis, plants absorb sunlight using specialized pigments such as chlorophyll, which converts this radiant energy into chemical energy in the form of glucose.

This energy-rich molecule serves as the primary source of energy for all organisms within the biosphere, forming the basis of food chains and energy transfer.

Reflection, on the other hand, plays a significant role in determining the energy balance of the biosphere.

When sunlight reaches the Earth's surface, it can be reflected back into space by various surfaces, such as ice, snow, water bodies, and clouds. This reflection, known as albedo, influences the amount of solar radiation absorbed by the biosphere.

For instance, surfaces with high albedo, like snow-covered areas, reflect a large portion of incoming sunlight, leading to lower energy absorption. In contrast, surfaces with low albedo, such as forests or dark soil, absorb more solar radiation, increasing the energy available within the biosphere.

The interplay between absorption and reflection is critical for maintaining the energy equilibrium of the biosphere.

It regulates temperature, drives climate patterns, and affects the productivity and distribution of ecosystems.

Changes in the absorption and reflection of energy can have profound effects on the biosphere, such as alterations in temperature regimes, shifts in precipitation patterns, and modifications in the geographical distribution of species.

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Answer:

invertebrates

Explanation:

Explanation:

the cell walls of fungi are made of chitin, not cellulose. Also, fungi absorb nutrients from other organisms, whereas plants make their own food. These are just a few of the reasons fungi are now placed in their own kingdom.

Early hominins walked on two legs is the answer.

Laetoli's footprint provides a clear snapshot of early Hominini bipedalism with slightly but significantly different limb postures. These data support the hypothesis that significant evolutionary changes in Hominini bipedalism occurred 36 million years ago.

Laetoli is a prehistoric site in the Enduleni district of the Ngorongoro district in the Arusha region of Tanzania. The site dates from the Pliocene to the Pleistocene and is famous for its Hominini footprints preserved in volcanic ash. The location of Laetoli's footprints is 45 km south of the Olduvai Gorge.

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The left anterior descending artery is most likely affected by coronary artery disease.

Coronary artery sickness is due to plaque buildup inside the wall of the arteries that deliver blood to the heart (referred to as coronary arteries). Plaque is made up of cholesterol deposits.

Coronary heart ailment cannot be cured however treatment can assist manipulate the signs and decrease the possibilities of troubles including heart attacks. remedy can encompass: way of life changes, which includes everyday workout and preventing smoking.

A very blocked coronary artery will cause a coronary heart attack. The classic symptoms and signs of a coronary heart assault encompass crushing chest pain or strain, shoulder or arm ache, shortness of breath, and sweating.

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Answer:

The correct answer is villi.

Explanation:

The carbohydrates consumed by human beings are further dissociated into its mono forms, that is, fructose, glucose, and galactose. Of these monosaccharides, about 80% is glucose, which gets absorbed with the assistance of absorptive cells in the small intestine. In the walls of the small intestine, the food after digestion is passed into the blood vessels via the process of diffusion.  

The mucosa or the inner wall of the small intestine is enveloped by finger-like tissues known as villi that further comprise microscopic finger-like outcrops called microvilli. These villi and microvilli enhances absorption of nutrients as they increase the surface area of the small intestine. Thus, the absorption of glucose within the small intestine is enhanced by the presence of villi.  

Oxygen always exits the capillary, an area of higher concentration, and travels to the surrounding tissue where there is less of it. This occurs because: of the principles of diffusion and concentration gradients.

Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration. In the case of oxygen, there is a higher concentration of oxygen in the capillaries, and a lower concentration in the surrounding tissues. Therefore, oxygen will diffuse from the capillaries to the tissues. This is also known as a concentration gradient.

A concentration gradient is a gradual change in concentration from one area to another. In this case, the concentration gradient is from the capillaries to the surrounding tissues. As oxygen diffuses from the capillaries to the tissues, it is then used in cellular respiration to produce energy. In summary, oxygen diffuses from the capillaries to the surrounding tissues due to the principles of diffusion and concentration gradients, and is used by cells for energy production.

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The air sacs that are covered with capillaries where gas exchange takes place is the alveoli.

The alveoli are the small air sacs near the bronchioles' ends (tiny branches of air tubes in the lungs).The alveoli exchange oxygen and carbon dioxide between the blood when you breathe in and out. When oxygen is inhaled from the air, it gets to the body's tissues via the alveoli, blood, and tissues throughout the body. The body's tissues release carbon dioxide into the blood, which then passes via the alveoli and is exhaled.

The farthest-reaching part of the respiratory system is represented by the alveoli. The human body contains over 500 million alveoli. An alveolar septum, which houses the pulmonary capillaries involved in gas exchange and connective tissue, divides each alveolus from the neighboring one.

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Procedural memory is the form of long-term memory that is least susceptible to loss in Alzheimer's disease.

Any damaging deviation from an organism's normal functional or structural state is referred to as a disease. Diseases typically have specific symptoms and signs and are different from physical injuries in nature

A disease is a specific aberrant state that adversely affects an organism's overall structure or function and is not immediately brought on by an external harm. Medical problems with distinct indications and symptoms are frequently known as diseases.

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According to researchers, there are two evidence-based ways to modify solar parks to protect and enhance pollinator biodiversity.

The first method involves incorporating native flowering plants within the solar panel arrays. This provides a habitat for pollinators such as bees and butterflies, increasing their numbers

. The second method involves reducing the frequency of mowing or maintenance in the areas surrounding the solar panels.

This allows for the growth of natural vegetation, which provides a food source for pollinators and also creates a more natural habitat. Both of these modifications have been shown to positively impact pollinator biodiversity in solar parks, making them more environmentally sustainable.

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In eukaryotic cells, mRNA molecules undergo extensive post-transcriptional modifications before they are ready to be translated into proteins. Two of the most important modifications are the addition of a 5' cap and a 3' poly(A) tail. The cap helps to stabilize the mRNA molecule and facilitate its export from the nucleus, while the poly(A) tail plays a role in translation initiation and mRNA stability.

If a eukaryotic mRNA lacks a cap and poly(A) tail, it is likely to be less stable and less efficiently translated. The cap and poly(A) tail are both important for protecting the mRNA molecule from degradation, and without these modifications, the mRNA may be more susceptible to exonucleases that degrade RNA molecules from the ends.

In addition, the cap is important for recruiting translation initiation factors that bind to the 5' end of the mRNA and facilitate the assembly of the ribosome. Without a cap, translation initiation may be impaired. Similarly, the poly(A) tail helps to recruit factors that promote translation, and without this tail, translation may be less efficient.

Overall, a eukaryotic mRNA lacking a cap and poly(A) tail is likely to be less stable and less efficiently translated than an mRNA with these modifications.

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Lamarckian and Darwinian ideas about evolution differ in their explanations for how species change over time. Lamarckism proposes that acquired characteristics can be inherited, while Darwinism emphasizes natural selection and variation as driving forces of evolution.

Lamarckian and Darwinian ideas about evolution have fundamental differences in their explanations:

Lamarckism, proposed by Jean-Baptiste Lamarck, suggests that acquired characteristics during an organism's lifetime can be passed on to the next generation. Lamarck argued that organisms change in response to their environment and these changes are then inherited. For example, if a giraffe stretched its neck to reach higher leaves, its offspring would inherit a longer neck.

On the other hand, Darwinism, formulated by Charles Darwin, centers around natural selection and variation. Darwin proposed that organisms with favorable traits are more likely to survive and reproduce, passing those advantageous traits to subsequent generations. This process, known as "survival of the fittest," leads to the gradual accumulation of beneficial traits in a population over time.

The key differences between Lamarckism and Darwinism are:

1. Inheritance of acquired characteristics: Lamarckism suggests it is possible, while Darwinism rejects this idea.

2. Mechanism of change: Lamarckism proposes that organisms change in response to the environment, while Darwinism emphasizes natural selection acting on variations already present in a population.

3. Timescale: Lamarckism implies rapid and continuous change, while Darwinism allows for gradual and cumulative changes over long periods of time.

In summary, Lamarckian evolution focuses on the inheritance of acquired characteristics, while Darwinian evolution emphasizes natural selection and the accumulation of beneficial variations over time. Darwin's theory of evolution by natural selection is widely accepted and forms the basis of modern evolutionary biology.

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Answer:

Difference between subsistence farming and commercial farming

Explanation:

Subsistence farming is done basically to feed the farmers family itself. It has little or no profit.

Commercial farming is done with the intent of profit, where cash crops are sown.

Tim is going to have to find the people that would fill in the positions from other countries.

Outsourcing is a business practice in which a company hires another company or individuals to perform tasks, services, or functions that are typically done in-house. The idea behind outsourcing is to reduce costs, increase efficiency, or tap into specialized expertise. Outsourced tasks may include customer service, manufacturing, accounting, IT support, or any other function that is not considered a core competency of the company.

Outsourcing can take place within a country or across international borders. The term "offshoring" is used specifically when outsourcing is done to a foreign country. The use of outsourcing has become increasingly common in recent years as companies look for ways to remain competitive in a rapidly changing global market.

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Tim's manager has asked him to outsource several customers service jobs at the company where he works therefore he will find these outsourced people to fill the customer service positions within the company where Tim works and is therefore denoted as option B.

This is referred to as a business practice in which a company hires a third party to perform tasks, handle operations or provide services for the company.

Since he was told to outsource several customers service jobs at the company where he works the he just means him being in charge of handling their operations within the company where he works.

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Oncogenes are genes that, when mutated, have the potential to promote uncontrolled cell growth and contribute to tumour formation. One of the key steps in the expression of oncogenes is the binding of transcription factors to the promoter region of the gene, which initiates the transcription and subsequent translation of the oncogene's proteins.

To prevent the expression of an oncogene, targeting the transcription factors associated with its promoter is an effective strategy. By introducing a chemical that specifically binds to these transcription factors, their ability to activate the oncogene's expression can be inhibited or reduced. This interference in the transcription process would prevent or decrease the production of the oncogene's proteins, thereby impeding tumour formation. The most effective therapy among the options listed for preventing the expression of an oncogene would be: Introducing a chemical that binds to transcription factors associated with the oncogene's promoter.

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Answer:

Falcons, herons, and parrots are similar in that they are all types of birds. They are also all known for their hunting and fishing abilities, although they use different techniques. Falcons are known for their swift flight and ability to catch prey in mid-air, while herons are known for their long legs and sharp beaks which they use to hunt for fish and other small aquatic animals in shallow water. Parrots, on the other hand, are known for their intelligence and ability to mimic sounds and speech. Additionally, all three types of birds have strong, curved beaks and sharp talons or claws, which they use for catching and holding their prey.

Windblown spores are an adaptation to reproduction on land for nonvascular plants because they help these species disperse their offspring over larger areas. This increases the chances of finding suitable habitats for growth and reproduction, promoting the survival and expansion of the plant species.

Windblown spores are an adaptation to reproduction on land for nonvascular plants because they allow for efficient dispersal of the species. Without a vascular system to transport nutrients and reproductive cells, nonvascular plants rely on external agents like wind and water to carry their spores to new locations where they can germinate and grow. The ability to forcefully expel their spores also increases the chances of successful reproduction by increasing the distance the spores can travel. This adaptation helps ensure the survival and expansion of the species in a terrestrial environment.

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Nonvascular plants have evolved windblown spores to assist them disseminate their progeny across broader regions during land-based reproduction.

This improves the likelihood of discovering favorable environments for development and reproduction, assisting in the survival and spread of the plant species. Since they effectively disperse the species, windblown spores are a form of nonvascular plants' adaptation to reproduction on land.

Nonvascular plants rely on external forces like wind and water to move their spores to new sites where they may germinate and thrive since they lack a vascular system to transport nutrients and reproductive cells. By enabling their spores to go farther, the capacity to forcefully discharge their spores also improves the likelihood of successful reproduction.

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When depolarization of a cell membrane reaches the threshold, an action potential is produced. Here's a step-by-step explanation:

1. Depolarization occurs when positive ions, such as sodium (Na+), enter the cell, causing a change in the cell membrane's electrical potential.
2. As the cell membrane depolarizes, it moves towards a less negative or even positive electrical potential.
3. The threshold is a specific level of depolarization needed to trigger an action potential.
4. When depolarization reaches the threshold, voltage-gated ion channels open, allowing more ions to flow across the cell membrane.
5. This rapid exchange of ions causes a spike in the electrical potential, producing an action potential.
6. The action potential propagates along the cell membrane, ultimately leading to the transmission of signals in neurons or the contraction of muscle cells.

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Answer:

The four stages of mitosis are known as prophase, metaphase, anaphase, telophase. Additionally, we'll mention three other intermediary stages (interphase, prometaphase, and cytokinesis) that play a role in mitosis. During the four phases of mitosis, nuclear division occurs in order for one cell to split into two.

Explanation:

Answer:

A. True

Explanation:

The last universal common ancestor or last universal cellular ancestor (LUCA), also called the last universal ancestor (LUA), is the most recent population of organisms from which all organisms now living on Earth have a common descent—the most recent common ancestor of all current life on Earth.

Answer:

A. True

Explanation:

Yes, all life shares the same evolutionary heritage from an ancestor that appeared 3.8 billion years ago.

Answer: the ecosystem is balanced.

Explanation:

Answer

lymphocytes

Explanation:

but they have a little difference

Answer:

D. lymphocytes​

Explanation:

They are different because B cells are antibodies not T cells

They are the same because T and B cells both are lymphocytes

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