Why is coal considered stored or potential energy?

Answer:

nucleus im pretty sure haha

Explanation:

Answer:

Nutrient Cycling

Explanation:

Answer:

-Drone bees fertilize the queen.

-Their stinger is a modified egg container, so its not actually a stinger!

-Drone bees have half the chromosomes of a female, therefore they have 16.

Answer:

sorry I don't know

ssoorryy

Answer:

A good hypothesis is not simply a guess.

Explanation:

Hypotheses should be based on previous knowledge of the topic. If you're going to drop an egg off the roof of your house, you have previous knowledge that eggs are fairly fragile, so your hypothesis would probably be that the egg would break.

However, if you're hypothesising about about a topic that you don't know a lot about, or if you are making a more specific hypothesis, sometimes your hypothesis will not be supported by your experiment. For example, if you're dropping an egg onto a layer of wool, and testing different numbers of layers to see how many layers of wool you need to lay down before the egg breaks, you might guess 10 layers of wool when the answer was actually 15. This doesn't mean that your experiment is useless, just because your hypothesis was incorrect, it just means that you've learned something new, and if you repeat the experiment, you'll be able to make a more accurate hypothesis.

Answer:

is not simply a guess.

Explanation:

is not simply a guess.

is always true.

is always a guess.

none of the above​

Answer:

can u explain to more

Explanation:

Heterozygous individuals are those who carry a dominant and a recessive allele in their genotype. Question 6 is true, Heterozygous individuals will display the dominant trait but carry the recessive allele that can be passed to future offspring.

When talking about heterozygous or homozygous individuals, we are referring to their genotype.

The heterozygous individual carries two types of alleles. Depending on the inheritance pattern and the interaction between alleles, one of them can dominate over the other one, can be equally dominant, or is incompletely dominant.

In the case of complete dominance, the dominant allele completely hides the expression of the recessive allele. So the heterozygous individual will express the dominant phenotype because of the presence of the dominant allele but will carry a recessive allele that will be transmitted to the progeny.

Question 6 is true, Heterozygous individuals will display the dominant trait but carry the recessive allele that can be passed to future offspring.

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Answer:

Nucleic acids, which include DNA (deoxyribonucleic acid) and RNA (ribonucleic acid), are the macromolecules that contain phosphorus. Phosphorus is an important component of the nucleotides that make up nucleic acids.

In DNA, the phosphate group is located on the 5' carbon of the sugar molecule, which is connected to the nucleotide base via a phosphodiester bond. The phosphate groups of adjacent nucleotides form the backbone of the DNA molecule.

In RNA, the phosphate group is similarly located on the 5' carbon of the sugar molecule, but RNA has a ribose sugar instead of a deoxyribose sugar. RNA also typically contains single-stranded nucleotides, rather than the double-stranded structure of DNA.

Overall, phosphorus plays a critical role in the structure and function of nucleic acids, which are responsible for storing and transmitting genetic information.

Muscle cells contain actin and myosin protein filaments that slide across each other to create a contraction that modifies both the cell's length and shape. Muscles act for strength and movement

Contaminated water is a type of water that is harmful to human beings due to the presence of harmful substances, pollutants, or impurities that make the water unsafe for drinking or other household uses. The characteristics of contaminated water can be identified through various indicators, which can either be physical, biological or chemical.

Physical indicators are visible and may include color, taste, and odor, while biological indicators are not visible and may include bacteria, viruses, and protozoa. Chemical indicators may include heavy metals, pesticides, and organic compounds, among others.

Physical Characteristics: Physical characteristics of contaminated water include cloudy or turbid appearance, unusual taste or odor, or discoloration of the water. The color may range from yellow to brown, blue to green, or even black.

Biological Characteristics: Biological characteristics of contaminated water include the presence of bacteria, viruses, or protozoa. These microorganisms can cause diseases such as diarrhea, typhoid, cholera, and dysentery.

Chemical Characteristics: Chemical characteristics of contaminated water include the presence of heavy metals such as lead, arsenic, or cadmium. Pesticides and fertilizers can also contaminate water and affect human health. Organic compounds like benzene and toluene can also be present in contaminated water, which can lead to health problems such as cancer and nerve damage.

Therefore, it is important to test water sources regularly to identify and monitor any contaminants that may be present. This can help prevent health problems associated with the use of contaminated water.

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Bryophyta classes share non-vascular, small stature, and water-dependence. Differences include reproduction, morphology, and habitat preferences.


The three classes of Bryophyta - hornworts, liverworts, and mosses - have similarities like being non-vascular, small, and requiring water for fertilization. They all undergo alternation of generations, produce spores, and have rhizoids instead of roots.

The differences lie in their reproduction, morphology, and preferred habitats. Hornworts have a single large chloroplast, liverworts have a flattened thallus, and mosses have a stem-like structure.

Hornworts and mosses reproduce through sporophytes on top of gametophytes, while liverworts have umbrella-like structures. Each class has unique habitat preferences, including soil, rocks, or damp areas.

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Answer:

The little wind and long dry days throughout the year is a characteristic feature of Arid habitats. Definitely, there will be abundant sunlight, with rainfall. Consequently, the alternative source of energy is Solar energy.(photovoltaic) Wind energy would  have been used if the wind were strong and much, But with little wind, this is not an option.

Therefore ,confirming the use of solar  as source of energy

Explanation:

Answer:

Risk factors include: Advancing maternal age. A woman's chances of giving birth to a child with Down syndrome increase with age because older eggs have a greater risk of improper chromosome division. A woman's risk of conceiving a child with Down syndrome increases after 35 years of age.

Answer:

advancing maternal age.

Explanation:

Answer:

due to contamination and facility degradation.

It is ture that Illinois leads the nation in nuclear power generation, producing almost 50 per sent of the state’s electricity and about 1/8 of the nations nuclear power generation

As well as In 2019, Illinois generated the most electricity from nuclear energy, and the state's six nuclear plants accounted for 12% of U.S. nuclear power net generation

nucleotide, phosphate, sugar, nitrogen base, hydrogen bond, covalent bond, purine, pyrimidine, hydroxyl group, the 5' end, the 3' end, adenine, thymine, cytosine, and guanine specific nitrogen base pairs in your labeling.

The sugar is located in the middle of a nucleotide, with the phosphate group (or groups) connected to its 5′ carbon and the base attached to its 1′ carbon.

The DNA helix's structural core is made up of these groups. They form the side of the ladder or the side section when you look at a DNA helix. They attach to a nitrogen foundation, which creates the ladder's steps. Deoxyribose is the kind of sugar that is utilized in a DNA helix.

Compounds called pyrimidines form a single 6-sided ring. Cytosine and Thymine are two examples of pyrimidines.

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.

The organisms that should have exactly two arrows pointing toward them are the rattlesnakes because they are the food of roadrunners and prairie dogs.

A food web is a graphic representation of all interrelationships between populations in a given ecosystem, which encompasses both producer organisms (e.g. plants) and consumers such as in this case rattlesnakes that are interconnected to different trophic levels because they eat both roadrunners and prairie dogs.

Therefore, we can conclude that both roadrunners and prairie dogs eat  rattlesnakes, which must be represented in a food web by diagramming two different arrows pointing toward them.

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Answer:

rattlesnakes

i have no explination

Answer:

I believe its E

Explanation:

Atomic mass = atomic number + amount of neutrons

Atomic number = amount of protons

Therefore Atomic mass is the amount of protons plus the amount of neutrons so your answer would be E.

Answer:

i think it is the leaf cell

Explanation:

because plant cells have cell walls and the others don't

I hope my answer helped you! If you need more information or help, comment down below and I will be sure to respond if I am online. Have a wonderful rest of your day!

Answer:

Are you talking about photosynthesis.  The chemical reactions plants go through to have energy in the form of glucose.

Answer:

B --I H >> M transcribed

Explanation:  

Reverse genetics is a classical approach used in molecular genetics to elucidate gene function in a signaling gene network. This technique consists of producing loss of function mutations in genes of interest in order to analyze their phenotypic effects in the downstream signaling pathway.  

In this case, the mutation in B didn't affect the expression of the developmental gene M, together with the other mutant lines, this experiment indicates that B is a downstream suppressor of H (since further experiments show that B plays a role in the signaling pathway). Moreover, the mutation in the gene H affects the expression of M, thereby showing that H acts as a downstream activator of M. Finally, B-H double mutants did neither affect the expression of M, thereby showing that M transcription is dependent of the interaction between B and H.

Knowing that proteins B and H interact with each other, and they influence the expression of the M gene, we can propose the following  developmental pathway      B gene  --|  H gene >>  M gene

------------------------------

Gene pathways refer to the regulation of genes expression by turning them on and off. Many genes and proteins might be involved in this process, each of them playing significant roles in the signaling pathway.

Available data:

According to this information, we can assume that,

The developmental pathway is then as follows,

B gene  --|  H gene >>  M gene

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Answer:

Archaebacteria have cell wall made of complex composition of peptidoglycan

The third trophic level is made up of prairie dogs that get their matter and energy from the grasses (option d).

The energy pyramid depicted in the image illustrates the flow of energy through an ecosystem. In an energy pyramid, each level represents a trophic level, indicating the position of organisms in a food chain. The pyramid narrows as it ascends, indicating the decrease in available energy at higher trophic levels.

In this specific pyramid, the lowest trophic level is occupied by the grass. This makes sense because grass is a producer that captures energy from the sun through photosynthesis. As a result, it possesses the most energy within the ecosystem.

Moving up the pyramid, the second trophic level is occupied by the prairie dogs. They are herbivores that primarily consume grass for their energy needs. This demonstrates that the prairie dogs acquire their matter and energy from the grasses, supporting option D.

The third trophic level contains the coyotes, which are tertiary consumers. Tertiary consumers feed on other consumers, not producers. Therefore, option A is incorrect since vultures, not coyotes, are tertiary consumers in this ecosystem.

Option B is also incorrect because the coyotes do not obtain their energy from other coyotes located in the third trophic level. They acquire their energy indirectly from the grasses through the prairie dogs.

Finally, option C is incorrect as it states that the grasses' trophic level has the most energy. While the grasses are indeed the primary producers and possess the most energy, not all of that energy moves to the second trophic level.

Thus, the correct statement supported by the ecological pyramid is option D: The third trophic level is made up of prairie dogs that get their matter and energy from the grasses.

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Before fossil fuel and electrical power energy were harnessed, Humans used muscle power and direct wind and water power.

The correct option is C.

Muscle power refers to the power generated by humans during the contraction and relaxation of their muscles.

Muscle power can be used to accomplish a variety of tasks such as lifting objects, walking, running, etc.

Before the discovery of fossil fuels, humans use muscle power as well as wind and water power to accomplish tasks such as driving of motors, sailing ships, cutting trees, etc.

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Answer:

bacteria does not have fined boundaries

The trp operon is a group of genes for the biosynthesis of the amino acid tryptophan in bacteria.

Thus, the trp operon consists of five structural genes (trpE, trpD, trpC, trpB, and trpA), an operator region, and a promoter region. When tryptophan levels are high, the repressor protein binds to the operator region, thereby, blocking the transcription of the structural genes.

When tryptophan levels are low, the repressor protein is not able to bind the operator region, and RNA polymerase, which can initiate transcription of the structural genes. The trp operon is an negative feedback regulation of gene expression in bacteria as its presence inhibits the transcription of the genes responsible for its synthesis.

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The answer is the letter B. a hypothesis

*A hypothesis is a possible explanation that corresponds to set of observations

Energy flows in food webs according to the 10% rule, which states that only 10% of the energy stored as biomass in one level is transmitted to the following level.

Food webs are interactions between different organisms involving transference of energy when some of them feed on the other ones. The ones placed at lower levels pass energy to the ones at the higher levels.

Energy flow occurs according to the 10% rule, which refers to the energy flow along the trophic chains from autotrophs to heterotrophs and detritivorous organisms.

Only 1% of the solar energy that reaches the Earth's surface is absorbed by autotroph organisms. From there, each trophic level transmits 10% of its energy to the following trophic level. The remaining 90% is lost to the environment as heat.

The 10% rule states that only about 10% of the energy stored as biomass at one trophic level per unit of time ends up as biomass at the next trophic level, in the same unit of time.

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