How does a hydroelectric power plant convert energy?

A.- As water flows through the channels toward the turbines, it has kinetic energy. This is changed to mechanical energy as the water turns the turbines. Then the mechanical energy of the turbines is changed to electrical energy by the generator.

B.- As water flows through the channels toward the generator, it has potential energy. This is changed to electric energy as the generator rotates. Some of the electric energy is used to change water's energy into kinetic energy.

C.- As water flows through the channels toward the transformer, it has potential energy.
This is converted to electrical energy by the transformer, and then the energy is
magnified by the generator.

D.- As water flows through the channels toward the turbine, it has kinetic energy. This is changed to potential energy within the turbine. This potential energy is converted to electrical energy by the transformer.

If the answer is right I will mark brainliest!! Just please help!

Answer:

Pictures?

Explanation:

Answer:

If on Edg...

Robert Hooke

Observed cork cells

Was the first to use word "Cell"

Anton van Leeuwenhoek

observed "animalcules"

used polished lens

Explanation:

Answer:

its simple!

Explanation:A Geologist is someone that studies the earth! like rocks and dirt!

A Paleontologist is someone who studies old bones and fossiles that are IN the dirt!

Answer: Competition (Exploitation competition).

Explanation:

Competition is a relationship between different organisms in which one is harmed when they are trying to utilize a particular resource for the purpose of growth, reproduction and survival. The resources are limited.

Exploitation competition is type of competition where organisms of different species compete for resources by exploiting resources to limit the resources available to other organisms.

Answer: Deciduous biome, intertidal zone,  deciduous biome, heat zones

0.9%

Explanation: The kind of flora and fauna depend on the heat received in those regions. The ones with high temperatures will have different kind of vegetation compared to ones receiving lesser heat.

The deciduous biomes constitute a large part of the southern hemisphere of the globe. The forests are majorly which shed leaves.

These biomes have diverse set of animals in their forests with varied trophic (food) levels.    

Even though three fourth of the planet is covered in water, The fresh water accounts for less than one percent that can actually be actually be consumed by living beings.          

deciduous forest

intertidal

climate

terrestrial

2.5

The abiotic factors that determine a terrestrial biome are weather, climate, latitude and amount of sunlight an area receives, and nutrients available.

The amount of precipitation and the warm climate in the tropical rainforest support more organisms in that area. There are fewer limiting factors in the tropical rainforest.

The order of most to least sunlight is littoral zone, limnetic zone, and profundal zone.

Biomes are different because of their differing latitude, climate, weather, amount of sunlight, and precipitation. All organisms have a range of tolerance for the temperature, amount of sunlight, and precipitation in which they can survive.

Explanation:

1. Gametophyte

2. Gametes

3. Zygote

4. Sporophyte

The life cycle of plants are very interesting in nature. The plant body that we see is the sporophyte. The sporophyte plant has the flowers which contain the Pollen mother cell and embryo sac which are the gametophytes.

These gametophytes produce the cells that are gametes which are pollen and ovule respectively. These grains fuse to form fertilization and zygote. The zygote marks the starting of the sporophytic generation.

The sporophytic  generation is diploid and the gametophytic generation is haploid in nature.

Answer:

Option D. Roots, stems, and leaves.

Explanation:

Ground tissue is a type of which are present in roots, stem, seed and leaves etc. Ground tissue is responsible for the production of food materials. These tissues also helps in the storage of food substance that are prepared in the leaves and gives support to the plant. Ground tissue is formed from parenchyma, collenchyma, and sclerenchyma.

Answer:

Calcium Bromide is represented by the formula CaBr2.

Answer:

CaBr2

Explanation:

i just got it right on usa test prep

Answer: Protons contribute towards making ATP by producing proton-motive force that provides energy for ATP synthesis.

Explanation: In the respiratory chain, the transfer of electrons from one complex to another is accompanied by pumping of protons out of the matrix. This creates a difference in proton concentration and separation of charge across the mitochondrial inner membrane. The electrochemical energy inherent in this difference in proton concentration called proton-motive force is used to drive ATP synthesis as protons flow back passively into the matrix through a proton pore.

Answer: The deletion of a single nucleotide in a gene often results in a very defective protein because it changes the reading frame of the DNA which leads to the production of a protein with amino acid sequence that is different from the original protein.

Explanation: When a single nucleotide is deleted in a gene, it results in a frameshift mutation. A frameshift mutation is a type of mutation caused by either insertion or deletion of a nucleotide in a DNA sequence which changes the reading frame of a DNA sequence. During protein synthesis, DNA is first copied into an mRNA and the mRNA is used to make a protein. mRNA sequence is read in triplet of nucleotides known as codons which code for specific amino acids. When a single nucleotide is deleted from a DNA sequence, the mRNA that will be produced will have an altered reading frame which leads to the addition of wrong amino acid and the entire amino acid sequence after the point of mutation will be incorrect. This results in a completely different protein from the original thus causing a defect in protein function.

A single nucleotide deletion can cause a frameshift mutation in a gene, altering the original amino acid sequence and drastically affecting the structure and function of the resulting protein.

The deletion of a single nucleotide in a gene often results in a very defective protein because it can cause a frameshift mutation. This type of mutation essentially throws off the entire reading frame for a gene by either adding or subtracting a nucleotide that is not a multiple of three (since ribosomes read mRNA in triplet codons), which changes every single amino acid after the point of mutation.

As an example, consider a hemoglobin molecule which is made up of two alpha and two beta chains, each consisting of about 150 amino acids. A single base change, or point mutation, can cause such a significant structural difference in the resulting protein as to substantially decrease life expectancy in conditions like sickle cell anemia.

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Answer:

c water is the answer

Explanation:

yeah

Water is the most common and powerful agent of erosion. Therefore, option (C) is correct.

Erosion is the process by which natural forces such as wind, water, ice, and gravity wear away and shape the Earth's surface. Water is the most common and powerful agent of erosion, as it has the ability to erode and shape the landscape in a variety of ways. Water erosion can occur through the action of flowing water, such as in rivers and streams, or through the action of waves and tides in the ocean. Water can also cause erosion through the process of groundwater seepage, in which water flows underground and erodes the soil and rock below the surface.

Water erosion can have a significant impact on the landscape, shaping valleys, carving out canyons, and creating features such as waterfalls and gorges. It is also a major factor in soil erosion, which can have negative impacts on agriculture and the environment.

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Answer: provide more info

Explanation:

I need more info

Answer:

Ecological succession

Explanation:

Ecological succession can be described as a series of processes by which a climax community arises gradually in an area where there was no form of life before or the previous ecosystem was destroyed bu disasters such as fire, flood etc.

Ecological succession is of two types:

Primary succession occurs on lands where there was no form of life before. On the other hand, secondary succession occurs in lands where there was an ecosystem before which was destroyed.

Answer:

Because mushrooms require obtaining food from other sources, it should be considered that they are heterotrophs because their food is made by other organisms (option C).

Explanation:

Mushrooms are the sporocarps of multicellular eukaryotic organisms belonging to the Fungi kingdom. Unlike plants -which are able to synthesize their own nutrients- mushrooms must acquire nutrients from organic matter, so they are considered heterotrophic.

The nutrition of mushrooms depends on their affinity for living organic matter -in the form of parasites or symbionts- or dead organic matter, performing its digestion through enzymatic degradation. The sporocarp that characterizes the mushrooms, is the visible form of development that can acquire a fungus.

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Answer:

They are identical because, in the process of mitosis, the single cell divides into 2 and remains the same along with identical characteristics.

Explanation:

Answer:

The cheetah can run faster than the tiger but not as fast as the jaguar.

Answer:

C. Selective breeding

Explanation:

The text says that people selected the best ones to breed together to get what they want. This is called selective breeding.

The answer is C: Selective breeding

B.)  

i kown its right                                                              

Answer:

B.

Explanation:

Variations are fundamental to natural selection, serving as the material on which natural selection acts to drive evolution. Studies, such as those on Darwin's finches, highlight how environmental changes can lead to evolutionary shifts within short periods, emphasizing the critical role of genetic variance in population evolution.

Variations within a population are crucial for the process of natural selection, as they provide the raw material on which natural selection can act. Without genetic variability, there would be no differential survival and reproduction among individuals in response to changing environmental pressures. This lack of variation would halt evolution, as there would be no traits for natural selection to favor or disfavor.

Genetic variations arise from mutations, gene flow, and sexual reproduction, and are a prerequisite for adaptability and survival of species. The iconic studies of Darwin’s finches by Peter and Rosemary Grant showcase how environmental changes, such as fluctuations in rainfall and hence food availability, can lead to measurable evolutionary changes within relatively short time spans. This underscores the importance of genetic variance in evolution of populations.

Moreover, human populations exemplify the breadth of genetic variation, affected by a complex interplay of genetic drift, mutation, and natural selection, leading to a diverse range of phenotypes. This variation is not just superficial but plays a critical role in how populations adapt to their environments over time. Thus, understanding the mechanisms of variation is essential for comprehending the broader processes of evolution and biodiversity.

Final answer:

Variations are essential for the natural selection process, providing the genetic 'raw material' that can lead to adaptations in response to environmental changes, as exemplified by the variation in beak sizes among Darwin's finches studied by the Grants.

Explanation:

The Importance of Variations to Natural Selection

Variations within a species are crucial for natural selection, a process central to evolution. Without genetic variance, natural selection could not differentiate between individuals, and evolutionary adaptation would be stunted. Genetic variations arise from mutations and the recombination of genes through sexual reproduction. These variations in genes lead to different phenotypes (observable characteristics) within a population, providing the 'raw material' for natural selection to act upon. For example, consider the famous studies of Darwin's finches on the Galapagos Islands by Peter and Rosemary Grant. They detailed how climatic changes affected food availability, which in turn selected for different beak sizes in the finches. This is a clear demonstration of how variations in traits—such as beak size, influenced by genetic factors—can lead to differential survival and reproduction, driving the evolution of populations.

An examination of the beak sizes of the finch population shows a range of sizes, not just one. The diversity in beak size is indicative of genetic variability, which provided a spectrum of advantages and disadvantages that natural selection could act on following environmental changes. This supports the concept that genetic variations are essential for populations to adapt and evolve over time. In summary, variation is the cornerstone of evolutionary processes, and without it, populations would lack the necessary diversity to respond to changing environmental pressures, and evolution by natural selection would not occur.

Energy available to killer whale: 26,000 joules

Energy available to crabeater seal: 260,000 joules (assuming a 10% energy transfer efficiency between trophic levels)

In ecological systems, energy transfer between trophic levels follows the 10% rule, meaning that approximately 10% of the energy is passed on to the next trophic level. In this scenario, if the killer whale obtained 26,000 joules of energy from consuming the crabeater seal, it can be inferred that the crabeater seal initially possessed 10 times that amount, or 260,000 joules.

This estimation takes into account the energy lost as heat, metabolic processes, and other inefficiencies as energy moves through different trophic levels in the food chain. Therefore, each trophic level typically retains only about 10% of the energy from the level below it, illustrating the energy dynamics within the ecosystem.

Answer:

1. A

2. I

3. Sorry I am not sure.

4. I

Explanation:

1. ATP has 3 phosphate groups, T = tri aka three.

2. ATP has 3 phosphate groups and turns into ADP which as two phosphate groups because when it loses one phosphate, it releases energy.

3.

4. Passive transport does not require energy because when it passes through the cell membrane it is going with the concentration, it goes from high to low concentration. Active Transport requires energy because it is going against the concentration, low to high, so it needs energy to go from low to high concentration.

Answer:

1) A

2) I

3) C

4) I

Explanation: ATP is adenosine triphosphate. It has three phosphate groups attached to the 5th carbon atom of the ribose sugar. ATP contains adenine (a base), a ribose sugar and three phosphate groups.

ATP break down is an exergonic reaction in which the terminal phosphate group of ATP is cleaved to produce ADP and inorganic phosphate group (Pi) with the concomitant release of energy.

Cellular respiration involves the break down of a glucose molecules in the presence of oxygen to produce carbon dioxide, water as by-products with release of energy in form of ATP. The chemical energy in form of ATP released in cellular respiration is used to drive other cellular functions.

Passive transport is a process by which polar compounds and ions move across membrane through an alternative path created by membrane proteins. In passive transport, the transported species always move down its electrochemical gradient and does not require ATP expenditure. This means that passive transport is not coupled to ATP breakdown or does not occur at the expense of ATP hence the name passive transport. It is different from active transport which is coupled to ATP breakdown.

Explanation:

Energy is defined in science as the ability to move matter or change matter in some other way. Energy can also be defined as the ability to do work, which means using force to move an object over a distance.

The ability to move or cause changes in matter is referred to as energy.

Explanation:

Energy is a fundamental concept in physics and the natural sciences. It is the capacity or ability to do work or bring about changes in the state or motion of matter. Energy exists in various forms, and these forms can be converted from one to another. Some of the common forms of energy include:

Energy is a fundamental concept because it underlies all physical processes and is conserved in closed systems. It plays a crucial role in our daily lives, powering everything from machines and appliances to biological processes within living organisms.

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B, C, and D are correct. i think A is correct, but someone else should confirm.

Answer:

macrophages and dendritic cells. if i recall correctly.

Explanation:

Many different immune cells, such as macrophages and dendrictic cells.

Answer: Two recessive genes

Explanation: Every trait is controlled by at least a pair of gene, one inherited from the mother and the other inherited from the father. A recessive gene is a gene whose effect is masked by a dominant gene. A recessive gene lacks the ability to express itself in the presence of a dominant gene. For a recessive gene to manifest outwardly, it must occur in a homozygous state that is the individual must inherit two copies of the gene from its parents, one from the mother and one from the father.

The statement best describes surface tension is a measure of the intermolecular forces that cause two different substances to attract one another.

Surface tension is the tendency of liquid surfaces at rest to shrink into the minimum surface area possible. Surface tension is what allows objects with a higher density than water such as razor blades and insects to float on a water surface without becoming even partly submerged.

The surface tension determines the behavior of liquids in a number of processes and phenomena: Wetting and wettability: The wetting of a solid by a liquid depends, among other things, on the surface tension.

An example of such an organism is the water strider, which can run across the surface of water, due to the intermolecular forces of the molecules, and the force of the strider which is distributed to its legs.

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Answer:

A) True  

Explanation:

In Canada, their job description would come under the classification

Communication skills and personal skills are important for wedding photographers, because they must assess customer expectations before the event and interact with the couples and their families during a stressful time

The job description is appropriate.

Yes, Mia being a wedding photographer indeed falls under the arts, A/V technology, and communication career cluster. This cluster includes professions related to multimedia content, arts and design, journalism, and entertainment services.

The statement in the question is true. Mia, as a wedding photographer, indeed falls under the arts, A/V technology, and communication career cluster. This career cluster deals with professions involving designing, producing, exhibiting, performing, writing, and publishing multimedia content including visual and performing arts and design, journalism, and entertainment services. Within this pathway, photography is a key component, making it a fitting place for a wedding photographer like Mia.

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By conducting long-term research on large mammals in the Mara–Serengeti ecosystem and elsewhere in East Africa, Sinclair showed the ways in which different animal populations are regulated.

Answer: D). The father's sperm contained 23 chromosomes and the mother's egg contained 24 chromosomes.

Explanation: Down syndrome is a chromosomal disorder caused by an extra chromosome. Each gamete (sperm cells and egg cells) contains 23 chromosomes. During fertilization, a sperm cell with 23 chromosomes fuses with an egg with 23 chromosomes to form a zygote with 46 chromosomes. A normal child has 46 chromosomes but a child with down syndrome has 47 chromosomes. A child with down syndrome has an extra chromosome usually inherited from the mother, that is the mother's egg contains 24 chromosomes instead of 23 chromosomes.

Answer:

Viruses in general require a living host cell for replication. So cold sore virus requires a livng host to replicate. Infected host cells can be cultured and grown, and then the growth medium can be harvested as a source of virus as compared to bacteria that can be cultured in a nutrient agar plate. So ther virus must have a host cell like bacteria, plant or animal in which to live and make more viruses. Outside of a host cell, viruses cannot function.

The cold sore virus cannot be cultured on a nutrient agar plate because viruses require a host cell to reproduce. Agar plates provide nutrients which viruses cannot utilize for growth.

A virus, such as the one that causes cold sores, cannot be cultured on a nutrient agar plate due to the nature of its life cycle. Viruses are unique in the microscopic world because they cannot reproduce outside of a host cell. They lack the cellular components necessary for independent life and replication.

When performing culture techniques, bacteria and fungi (which are self-sufficient and can reproduce on their own) can be cultured on nutrient agar because they use the nutrients in the agar to grow and multiply. However, a virus requires the inside of a host cell, taking over the cell's machinery to produce more virus particles. The cold sore virus, specifically, replicates inside human cells, which means it cannot utilize a nutrient agar plate for growth.

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