3. What are the potential effects of introducing too much
nitrogen and phosphorus into an aquatic ecosystem?
Select all correct answers.
a. Fish populations would increase.
b. Aquatic organisms would die off.
c. Water would become clearer.
d. Algae would grow out of control.
e. Oxygen levels would increase.
Answers
Answer:
3. What are the potential effects of introducing too much nitrogen and phosphorus into an aquatic ecosystem?
Select all correct answers.
a. Fish populations would increase.
b. Aquatic organisms would die off.c. Water would become clearer.
d. Algae would grow out of control.e. Oxygen levels would increase.
Explanation:
You're welcome.
Related Questions
Myofibrils in a muscle cell are made up of a repeating linear array of contractile units called ________.
a) myotubules
b) blastomeres
c) myomeres
d) sarcomeres
Answers
The myofibrils in a muscle cell are made up of a repeating linear array of contractile units called sarcomeres.
Therefore, the correct answer to the given question is option D.
Sarcomeres are the fundamental functional and structural unit of muscle cells.
They are composed of actin and myosin filaments, which interact to produce muscle contraction.
The other options are incorrect because myotubules and myomeres are not contractile units of muscle cells, while blastomeres are found in early-stage embryos and are not related to muscle tissue.
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1. According to Chargaff's rule, if a DNA molecule contains 36% cytosine, how much thymine, guanine and adenine
are there?
Answers
As per Chargaff's rule the amount of DNA present in purine is equal to the amount in pyrimidines. G=C , guanine is 36%, A+T+G+C + 100% if C and G are 36 and 36 both, the remaining A and T are 100-72= 28 that is 14 and 14.
What is a DNA made up of ?A DNA is made up of deoxyribonucleotides along with the ribose sugar and the phosphorous group. The collective is DNA.
According to CHAR GAFF it is the amount of DNA present in purine is equal to the amount of DNA present in pyrimidines where the both are having equal amount.
A=T are having 14% and 14% whereas C and G are having 36% and 36%.
Therefore the ratios are 14,14,36 and 36.
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select all the correct choices that accurately compare the advantages and disadvantages f open and closed circulatory systems
-a closed circulatory system has the flexibility to direct blood to or from specific areas, while an open system cannot
-an open circulatory system has fewer vessels than a closed system and has less energetic costs
-in a closed circulatory system, waste removal and nutrient delivery are more efficient because of the higher blood pressure
Answers
A closed circulatory system has the flexibility to direct blood to or from specific areas, while an open system cannot. In a closed circulatory system, waste removal and nutrient delivery are more efficient because of the higher blood pressure.
The statement "An open circulatory system has fewer vessels than a closed system and has less energetic costs" is not entirely accurate, as open systems typically have more vessels to compensate for the lack of pressure-driven blood flow.
Advantages of open circulatory systems:
They require less energy to maintain, since they have fewer vessels and don't require as much pressure to circulate the blood.
They can supply oxygen and nutrients to all parts of the body, including the internal organs and muscles.
They can easily adapt to changes in oxygen demand, such as during exercise or stress.
Disadvantages of open circulatory systems:
They are generally less efficient at delivering oxygen and nutrients than closed systems, since the blood is not under as much pressure and does not flow as directly to specific tissues.
They are less effective at removing waste products, since the blood flows more slowly and is not as tightly regulated.
They may be more vulnerable to injury or infection, since there is less control over the flow of blood and the exchange of fluids between tissues.
Advantages of closed circulatory systems:
They can deliver oxygen and nutrients more efficiently to specific tissues, since the blood is under higher pressure and can be directed to specific areas.
They can remove waste products more effectively, since the blood flow can be more tightly regulated.
They provide greater protection against injury and infection, since the blood flow can be tightly controlled and directed away from damaged areas.
Disadvantages of closed circulatory systems:
They require more energy to maintain, since they have more vessels and require higher pressure to circulate the blood.
They may not be as adaptable to changes in oxygen demand, since the blood flow is more tightly regulated and directed to specific areas.
They may be more prone to blockages or other malfunctions, since the blood is under higher pressure and is more likely to accumulate debris or form clots.
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A type of cell division that results in the formation of two genetically identical daughter cells is known as ___
Answers
Answer:
Meiosis
Explanation:
How is the circulatory system involved in muscle movement? How is the skeletal system involved in movement?
Please provide information on where you found your evidence.
Answers
Answer:
The circulatory system works with the digestive system to send nutrients to the muscles. The skeletal system is involved in movement because your skeleton supports your body weight to help you move around.
Explanation:
The evidence would be found on biology sites.
the punnett square on p. 70 of your lab manual shows the genotypes of two parents for trait r. use this punnett square to answer the questions in this exercise. trait r is the mendelian trait in humans for tongue rolling. the allele for the ability to roll the tongue (r) is dominant over the allele for the inability to roll the tongue (r). what is the mother's genotype? group of answer choices
Answers
The genotypes of two parents for trait r is the mendelian trait in humans for tongue rolling. the allele for the ability to roll the tongue (r) is dominant over the allele for the inability to roll the tongue (r). The mother's genotype The mother is heterozygous (Rr) for the tongue-rolling trait.
There are two main types of genotypes that is homozygous and heterozygous. If an organism is homozygous for a gene, referred that they inherit two of the same versions of the gene. If an organism has a heterozygous genotype, referred that they inherit two different versions of a gene.
Genotype referred to the genetic makeup of an organism which described about an organism's complete set of genes. It is used to refer to the variant forms of a genes that are carried by an organism. The ability to roll the tongue is dominant over the allele for the inability to roll the tongue.
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Identify how magnetic symmetry can be used as
evidence of sea-floor spreading.
This is earth science btw please help me
Answers
Magnetic symmetry shows that the floor on both sides of a mid ocean ridge were once together.
10 POINTS QUESTION: Objects of different masses are suspended from a height. Which combination of features will have the greatest gravitational potential energy?
A. high mass and high height
B. high mass and low height
C. low mass and low height
D. low mass and high height
Answers
Answer:
A. high mass and high height
Explanation:
:))
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Do good on your work!
Two new microorganisms, labeled X and Y, were isolated from an oil spill during a search for organisms that will degrade petroleum products. DNA was isolated from each, and the percent adenine was measured. Assume each organism contains normal double-stranded DNA.
Organism X: 18.7% adenine
Organism Y: 29.9% adenine
a.) What percentage of thymine does organism X have?
b.) What percentage of cytosine does organism Y have?
c.) Which organism will have the higher melting DNA (require a higher temperature to denature)?
Answers
a.) Organism X has 18.7% thymine.
b.) Organism Y has 20.1% cytosine.
c.) Organism Y will have the higher melting DNA.
a.) Organism X will have 18.7% thymine because adenine and thymine always pair together in DNA, and they will always have the same percentage.
b.) Organism Y will have 20.1% cytosine because adenine and thymine make up 59.8% of the DNA (29.9% + 29.9%), and the remaining 40.2% will be split equally between cytosine and guanine. So, 40.2% / 2 = 20.1% cytosine.
c.) Organism Y will have the higher melting DNA because it has a higher percentage of adenine and thymine, which form two hydrogen bonds, compared to cytosine and guanine, which form three hydrogen bonds. The more hydrogen bonds, the higher the melting temperature required to denature the DNA.
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(Zoom in if you can’t see) Can someone please help me with the question that is not answered any of the one in the bottom is wrong please tell me please I beg you help me
Answers
Answer:
Do i care???????/
Explanation:
Potent and Broad Neutralization of SARS-CoV-2 Variants of Concern (VOCs) including Omicron Sub-lineages BA.1 and BA.2 by Biparatopic Human VH Domains
Answers
Global health and economic development are still under danger due to the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic.
What is variantion in SARS-CoV-2?
Variants of concern (VOCs) that have supplanted the original virus and turned into dominant strains around the world as a result of the dissemination of SARS-CoV-2 in global populations and adaptive evolution of the virus are now more common than the original strain. The development of next-generation biologics with significant neutralizing breadth is necessary due to the rise of SARS-CoV-2 variants of concern (VOCs).A human VH domain called F6 has been studied by scientists. It was created by progressively scanning sizable phage-displayed VH libraries against receptor binding domains (RBDs) with VOC mutations. F6 has a distinctive binding mechanism that spans a large surface area of the RBD and involves the antibody framework region, according to cryo-EM investigations. The construct (F6-ab8-Fc) that was created by joining an Fc region to the previously identified VH domains F6 and ab8 was effective at neutralizing a variety of VOCs, including Omicron.Learn more about the SARS-CoV-2 with the help of the given link:
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FILL THE BLANK.
"The amount of gases that can dissolve in seawater depends on
temperature and ____________________.
Group of answer choices
nutrients
depth
currents
salinity"
Answers
"The amount of gases that can dissolve in seawater depends on temperature and salinity." The quantity of dissolved salts in saltwater is known as salinity. It is one of the main elements affecting how soluble gases are in salt water.
The idea of colligative qualities can be used to explain the connection between salinity and gas solubility. The osmotic pressure produced by salts in saltwater, such as sodium chloride, has an impact on the solubility of gases.
Osmotic pressure rises in tandem with rising saltwater salinity. Gases are less soluble in water as a result of the higher osmotic pressure. Because of this, saltwater with a greater salinity has a lesser ability than seawater with a lower salinity to dissolve gases.
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Using genome maps. When constructing maps of the genome, scientists use genetic _____, which are any detectable differences between two individuals.
Answers
When constructing genome maps, scientists use genetic markers, which are detectable differences between individuals, to track and map specific regions of the genome.
Genetic markers are specific DNA sequences or variations that can be used to identify and track particular regions of the genome. These markers serve as signposts or landmarks that help scientists map and study the genetic information in individuals or populations. Genetic markers can be in the form of single nucleotide polymorphisms (SNPs), short tandem repeats (STRs), or other types of DNA variations.
By analyzing the distribution and inheritance patterns of genetic markers in individuals or families, scientists can determine the relative positions of genes and other genetic elements on the genome. This information is essential for constructing genetic maps, which provide a framework for understanding the organization and structure of the genome.
Genome maps are crucial for various applications, including genetic research, disease mapping, and population genetics. They enable scientists to identify genes associated with specific traits or diseases, study patterns of inheritance, and investigate genetic diversity and evolution.
In summary, genetic markers play a vital role in constructing genome maps by providing detectable differences between individuals that can be used to track and map specific regions of the genome. These markers help scientists understand the organization and function of genes, study genetic variation, and explore the genetic basis of traits and diseases.
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The best time of year to prune flowering shrubs like oleander that flower on new wood is? O anytime of year O in the late winter or later February O during September and October O during monsoon season O frequently, usually every 4 to 6 weeks to keep growth in check
Answers
The best time of year to prune flowering shrubs like oleander that flower on new wood is during the late winter or later February.
Pruning at this time allows for healthy growth in the upcoming growing season, as well as promotes more blooms since the plant flowers on new wood. It is not advisable to prune during the monsoon season, as excessive moisture can lead to diseases and negatively impact the plant's health.
Additionally, pruning frequently every 4 to 6 weeks is not recommended, as this can stress the plant and hinder its overall growth and development. Therefore, pruning in late winter or later February is the optimal choice for flowering shrubs like oleander that flower on new wood.
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How can we use genetic engineering to get rid of malaria for good
Answers
Answer:1st what is genetic engineering ,its mean extracting DNA from another organism’s genome and combining it with the DNA of that individual. Genetic engineering is used by scientists to enhance or modify the characteristics of an individual organism. Genetic engineering can be applied to any organism, from a virus to a sheep.
Explanation : If we used genetic engineering . The mutation prevented females from biting and laying eggs. It spread through our caged populations quickly and drove them extinct. Our results pave the way for lowering mosquito populations in the wild and getting rid of malaria in the future.
Which centrally acting skeletal muscle relaxant can lead to dependency upon prolonged use? (A. Baclofen B. Methocarbamol ) C. Diazepam (D. Orphenadrine).
Answers
Diazepam belongs to the benzodiazepine class of drugs and is commonly prescribed for its muscle relaxant properties. Diazepam (C) is a centrally acting skeletal muscle relaxant that can lead to dependency upon prolonged use
Prolonged and excessive use of diazepam can lead to physical and psychological dependence, making it important to use this medication under proper medical supervision and follow prescribed dosage guidelines.Baclofen (A), methocarbamol (B), and orphenadrine (D) are also centrally acting skeletal muscle relaxants, but they have a lower potential for dependency compared to diazepam.However, it is still crucial to follow the prescribed dosage and usage instructions provided by a healthcare professional when taking any medication to ensure safe and effective use.
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Which correctly classifies the type of diffusion shown in each diagram
Answers
Answer:
I think the answer is b because it has more stuff
Prepare a note on the need of conserving biodiversity
Please answer me l will mark Brainlist.
Answers
Prepare a note on the need of conserving biodiversity.
Answer:Botanical gardens are great for biodiversity conservation, as scientists can store, study and grow plants in their native habitats. Visiting and donating to your local botanical garden will help them continue to protect and promote biodiversity.Which of the following is an example of vertical gene transfer or transmission?
A.conjugation
B.formation of daughter cell
C.transformation
D.integration of a plasmid into the host chromosome
E.All the above are examples of vertical gene transfer
Answers
All the above are examples of vertical gene transfer or transmission. The correct option is E.
Vertical gene transfer is the practice of passing genetic information from parent organisms to their progeny. It ensures that genetic information is passed down from one generation to the next. All of the options are examples of vertical gene transfer in the given context. Direct genetic material exchange occurs during conjugation between bacterial cells, including parent and progeny cells.
Vertical transmission is made possible by the replication and transmission of genetic material to daughter cells during cell division. Through bacterial transformation, foreign DNA can be absorbed and incorporated into a bacterial cell's genome, where it can then be passed down to succeeding generations. Vertical genetic material transmission also results from the integration of a plasmid into the host chromosome.
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What would happen if the rate of evaporation reduces
Answers
Answer:
When temperature and wind speed are constant, but humidity increases, the rate of evaporation will decrease. When wind speed and humidity stay constant, and temperature increases, then the rate of evaporation will increase because warmer air can hold more water vapor than colder air.
Answer:
if the rate of evaporation reduces water cylcle will stops and amount of water present in the world will be increase.humifity will be more.
) An allosteric interaction between a ligand and a protein is one in which: (3 pts) A) binding of a molecule to a binding site affects binding of additional molecules to the same site. B) binding of a molecule to a binding site affects binding properties of another site on the protein. C) binding of the ligand to the protein is covalent. D) multiple molecules of the same ligand can bind to the same binding site. E) two different ligands can bind to the same binding site.
Answers
Answer:
B) binding of a molecule to a binding site affects the binding properties of another site on the protein.
Explanation:
In an allosteric interaction between a protein and a ligand, the ligand binds to a site in the protein. As a result, there is a change in the properties of other active sites on the protein. These active-site changes may or may not allow the protein to bind to other molecules. There is a change in the protein that affects the affinity of the active site for other molecules. The affinity on the active site increases if the protein binds to an activator and decreases if the protein binds to an inhibitor molecule.
Which molecule provides the amino acids that are assembled during translation ?
Answers
Answer:tRNA
Explanation:
Which basic geometric figure can be labeled as xy
Answers
Answer:
A ray can be a basic geometric figure can be labeled as xy .
Explanation:
Answer:
a ray
Explanation:
A neuron membrane potential moves from -90 mV to -80 mV in response to a brief stimulation. We would term this change in potential as a(n)
Answers
Answer:
What behavior is observed if the voltage across a neuronal membrane is set to -20 mV? The voltage-gated sodium and potassium channels both remain closed. The sodium channel opens, and Na+ ions flow out.
The membrane begins to depolarize when an external stimulus is applied. The membrane voltage begins a rapid rise toward +30 mV. The membrane voltage starts to return to a negative value. Repolarization continues past the resting membrane voltage, resulting in hyperpolarization
A neuron membrane potential moves from -90 mV to -80 mV in response to a brief stimulation this change in potential as a(n) Depolarization.
What is Hyperpolarization ?Hyperpolarization is while the membrane ability turns into extra terrible at a selected spot at the neuron's membrane, whilst depolarization is while the membrane ability turns into much less terrible (extra high quality).
Depolarization. A depolarization refers to a motion of the resting membrane ability in a extra high quality direction (in the direction of zero mV).
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what takes place in the light dependent reaction of photosynthesis
Answers
The goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to produce ATP and NADPH. These two energy-storing molecules are then used in the light-independent reactions.
Answer:
The sunlight is converted to chemical energy.
Explanation:
Light-dependent reactions happen in the thylakoid membrane of the chloroplasts and occur in the presence of sunlight. The sunlight is converted to chemical energy during these reactions. The chlorophyll in the plants absorb sunlight and transfers to the photosystem which are responsible for photosynthesis.
what is the first and most direct energy source for muscle contraction?
Answers
The first and most direct energy source for muscle contraction is a molecule called adenosine triphosphate (ATP). ATP is a high-energy molecule that stores and releases energy for cellular processes, including muscle contraction.
When muscles are at rest, they have a small amount of stored ATP. However, during muscle contraction, the demand for ATP increases, and the available ATP is quickly used up. Therefore, the body must continually produce more ATP to meet the energy demands of muscle contraction.The most immediate source of ATP is a molecule called creatine phosphate (CP), which is stored in muscle cells. CP can donate a phosphate group to ADP (adenosine diphosphate) to rapidly form ATP.
However, the supply of CP is limited, and it can only sustain muscle contraction for a short period. After the CP stores are depleted, the body must use other energy sources to produce ATP, such as the breakdown of glucose or fatty acids through cellular respiration. Overall, the efficient production and use of ATP are essential for muscle contraction and physical activity.
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How can an individual help to fight against air pollution?
Answers
They can protest to use safer sources of energy like power plants.
Biotic factors are living parts of an ecosystem. An example of a biotic factor is
A.a trout swimming in a river
В.bacteria growing on bread
C.moss growing in a tree
D. all of the above
Answers
Answer:
D
Explanation:
Hope this helps!
what is one way eukaryotic cell machinery can distinguish between various membranes in the cell?
Answers
In contrast to prokaryotes, eukaryotic cells feature internal membranes that enclose numerous organelles in addition to a plasma membrane that covers the entire cell.
Each membrane has its own set of specific proteins. within a lipid bilayer. The main distinction between prokaryotic and eukaryotic cells is that only eukaryotic cells have a nucleus and other membrane-bound organelles. Prokaryotes and eukaryotes are made up, respectively, of prokaryotic and eukaryotic cells. Prokaryotic cells typically lack the size and complexity of eukaryotic cells. In order to carry out metabolism, generate energy, and move chemicals throughout the cell, they need a number of specialised internal membrane-bound organelles.
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Research plastic problems in the environment and explain how this new development in biology could help to resolve the issue
Answers
Answer:
Plastic pollution is a significant environmental issue that has become increasingly pressing in recent years. However, new developments in biology could help to resolve the issue. Researchers are exploring ways to use bacteria to break down plastic waste through a process known as biodegradation. This could potentially reduce the amount of plastic waste in the environment and help to mitigate the negative effects of plastic pollution. While this research is still in its early stages, it shows promise as a potential solution to the plastic crisis.