What are the effects of fishing on the reef ecosystem
Answers
Answer:
Coral reef fish are a significant food source for over a billion people worldwide. Many coastal and island communities depend on coral reef fisheries for their economic, social, and cultural benefits. But too much of a good thing can be bad for coral reefs. Download this infographic | Infographic Text
Coral reef ecosystems support important commercial, recreational, and subsistence fishery resources in the U.S and its territories. Fishing also plays a central social and cultural role in many island and coastal communities, where it is often a critical source of food and income.
The impacts from unsustainable fishing on coral reef areas can lead to the depletion of key reef species in many locations. Such losses often have a ripple effect, not just on the coral reef ecosystems themselves, but also on the local economies that depend on them. Additionally, certain types of fishing gear can inflict serious physical damage to coral reefs, seagrass beds, and other important marine habitats.
Coral reef fisheries, though often relatively small in scale, may have disproportionately large impacts on the ecosystem if conducted unsustainably. Rapid human population growth, increased demand, use of more efficient fishery technologies, and inadequate management and enforcement have led to the depletion of key reef species and habitat damage in many locations.
Related Questions
W: B
15. Apply your knowledge of evolution to antibiotic resistance in bacteria (this is when
bacterial cells become resistant to the medicines that can usually kill them).
Which is the best explanation as to how bacteria can become resistant to
antibiotics?
a. Bacteria have a strong desire to stay alive and can fight off antibiotics when
they really want to
b. Some bacteria are just able to avoid antibiotics.
c. Due to variation among the bacteria, some have a natural resistance to antibiotics.
Antibiotics kill the cells that do not have resistance, but the cells that do stay alive and
reproduce are able to resist antibiotics, spreading the resistant form.
d. All bacteria cells are exactly the same, so it is unlikely that any are resistant
to antibiotics.
Answers
The best explanation as to how bacteria can become resistant to antibiotics is option c. Due to variation among the bacteria, some have a natural resistance to antibiotics.
This resistance can be passed on through reproduction and eventually, antibiotic-resistant strains of bacteria can become more prevalent in a population. When antibiotics are used, they kill off the non-resistant bacteria, leaving behind the resistant ones to continue reproducing and passing on their resistance. Over time, this can lead to a significant increase in the number of antibiotic-resistant bacteria, making it more difficult to treat bacterial infections. It is important to note that bacteria are not consciously fighting off antibiotics, but rather it is a result of natural selection and the survival of the fittest. This is a long answer, but it provides a more complete explanation of antibiotic resistance in bacteria.
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What type of RNA acts as a temporary copy of DNA's instructions and provides details on how to assemble a polypeptide
chain?
Answers
Answer:
messenger RNA (mRNA)
Explanation:
mRNA or messenger RNA is one of the three types of RNA molecules (the other being tRNA and rRNA) that is specifically responsible for carrying genetic information previously encoded and stored in the DNA into the ribosomes for translation to occur.
The process of translation results to the synthesis of amino acid sequences, which make up a polypeptide. Hence, it can be said that mRNA is that type of RNA that acts as a temporary copy of DNA's instructions and provides details on how to assemble a polypeptide chain.
What term describes the organisms that obtain energy from dead organic matter and aid nutrient cycling
Answers
Answer:
Decomposers.
Explanation:
Decomposers are the organisms that obtain energy from dead organic matter and help in nutrient cycling. The example of such type of organisms are bacteria and fungi. These organisms feed on the dead bodies of plant and animals. It perform two function i.e. clean the environment by removing the dead body through feeding on it and add nutrients in the soil which helps the plants to grow more efficiently.
When Chandler, one of the characters on the television show Friends, drank YooHoo chocolate flavored beverage, it was an example of ________.A) webisodesB) advergamesC) product placementD) interactive television(iTV)E) out of home media
Answers
Chandler drinking YooHoo chocolate flavored beverage on the television show Friends is an example of product placement, option c.
Product placement refers to the practice of featuring branded products or services in popular media content, such as TV shows, movies, or music videos. It is a form of advertising where products are seamlessly integrated into the storyline or scenes, providing exposure and visibility to the brand.
In the case of Chandler drinking YooHoo on Friends, it is a deliberate placement of the YooHoo beverage as a means of advertising and promoting the brand to the show's audience.
Product placement is a widely used marketing strategy to reach a large audience and create brand awareness. By showcasing products in popular media, advertisers aim to associate their brand with positive emotions, characters, or situations, ultimately influencing consumer behavior and purchasing decisions.
In the case of Friends, the inclusion of YooHoo as part of the show's storyline helps to create a connection between the brand and the characters, potentially influencing viewers to try or purchase the product themselves.
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How much sunlight does the twilight zone get? none at all almost as much as the sunlight zone a lot in the summer but none in the winter the small amount that penetrates the sunlight zone
Answers
Answer:
The area between 200 and 1,000 meters (656 and 3,280 feet) is the mesopelagic or “twilight” zone.
Explanation:
Light intensity in this zone is severely reduced with increasing depth, so light penetration is minimal. About 20 percent of primary production from the surface falls down to the mesopelagic zone.
Answer:
D. The small amount that penetrates the sunlight zone
why global climate models cannot predict the exact global average temperature of the earth in the year 2100 with total certainty.Explain two different reasons for this fact. Be specific and detailed in your explanations. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).
Answers
Global climate models cannot predict the exact global average temperature in 2100 with total certainty due to **inherent uncertainties** in the models and **unpredictable future human behavior**. These factors contribute to a range of possible outcomes rather than a single precise temperature prediction.
The first reason is the **inherent uncertainties** in climate models, which arise from factors such as the complex interactions between atmospheric, oceanic, and land processes, as well as limited understanding of some physical processes and natural climate variability. Additionally, models use different resolutions, leading to varying levels of accuracy. The second reason is the **unpredictable future human behavior**, as climate projections depend on future greenhouse gas emissions, which are influenced by factors such as population growth, technological advancements, and political decisions. Due to these uncertainties and unpredictable factors, global climate models can only provide a range of possible temperature outcomes for the year 2100.
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foreign dna can be inserted into cells using a variety of different methods. which method involves the formation of microscopic pores in the cell's membrane? view available hint(s)for part a foreign dna can be inserted into cells using a variety of different methods. which method involves the formation of microscopic pores in the cell's membrane? electroporation heat shock transformation protoplast fusion
Answers
The method that involves the formation of microscopic pores in the cell's membrane to insert foreign DNA is electroporation.
This is a technique used to introduce foreign DNA into a cell by exposing it to a high electric field. The electric field causes the formation of microscopic pores or channels in the cell membrane, which allows foreign DNA to enter the cell.
During electroporation, cells are suspended in a solution containing the foreign DNA, and an electric field is applied to the cells. The electric field causes the formation of pores or channels in the cell membrane, which allows the foreign DNA to enter the cell. Once inside the cell, the foreign DNA can be incorporated into the cell's genome, where it can be expressed and produce a desired protein.
Electroporation is a commonly used technique in molecular biology for introducing foreign DNA into bacterial, yeast, and mammalian cells. It is a versatile and efficient method that can be used to study gene function, produce recombinant proteins, and develop gene therapies.
In conclusion, electroporation is a method used to insert foreign DNA into cells by forming microscopic pores in the cell's membrane. This technique is widely used in molecular biology and can be used to study gene function, produce recombinant proteins, and develop gene therapies.
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The best method to reduce the threat of overfishing would be to . The risk of oil spills could be reduced by increasing the use of , which should help oil consumption. If an oil spill does occur, could be used to help remove the oil so the ecosystem may more quickly recover.
Answers
Answer:
The best method to reduce the threat of overfishing would be to limit the harvest of particular fish species. The risk of oil spills could be reduced by increasing the use of renewable energy sources , which should help decrease oil consumption . . If an oil spill does occur, bioremediation could be used to help remove the oil so the ecosystem may more quickly recover.
Explanation:
African penguins, which inhabit the coasts of southern Africa, were classified as an endangered species in 2010. Two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. Overfishing depletes the food supply of African penguins.
The best method to reduce the threat of overfishing would be to____
1. Construct a corridor to connect penguins and fish
2. Limit the harvest of particular fish species
3. perform a population survey on several fish species
The risk of oil spills could be reduced by increasing the use of
1. Natural resources
2. Renewable energy sources
3. Nonrenewable energy sources
, which should help______ oil consumption
1. Increase
2. Decrease
. If an oil spill does occur, __________ could be used to help remove the oil so the ecosystem may more quickly recover.
1. Bioremediation
2.reforesation
3. recycling
Overfishing can be prevented by formulating policies to limit the harvest of fishes on the basis of species they belong to.
Opting for renewable energy, such as solar or wind energy, would greatly reduce the dependence on non-renewable energy sources such as fossil fuels. Reduction in oil dependence will in turn reduce the risk of oil spillage into the environment. as well as reduce oil consumption.
Spilled oil can be removed from the ecosystem by relevant bioremediation processes. Bioremediation involves the use of biological species to clean up pollutants (such as spilled oil) from the environment.
Answer:
blank 1- limit the harvest of particular fish species
blank 2- renewable energy sources
blank 3- decrease
blank 4- bioremediation
The best method to reduce the threat of overfishing would be to limit the harvest of particular fish species. The risk of oil spills could be reduced by increasing the use of renewable energy sources , which should help decrease oil consumption . . If an oil spill does occur, bioremediation could be used to help remove the oil so the ecosystem may more quickly recover.
Explanation:
Phospholipids form the main fabric of the plasma membrane. One feature of phospholipids is that when they are placed in an aqueous solution, they will self-assemble into a double layer (bilayer) that resembles the bilayer of the plasma membrane. This self-assembly occurs because phospholipids are hydrophilic at one end (the phospholipid head) and hydrophobic at the other end (the phospholipid tails).A) hydrophilicB) hydrophilicC) grey on top, yellow on bottomD) grey on bottom, yellow on top E) hydrophilicF) hydrophobicG)hydrophilic
Answers
Phospholipids have a hydrophilic (water-loving) head that is composed of a phosphate group and a glycerol molecule, and two hydrophobic (water-fearing) tails made up of long hydrocarbon chains. The correct answer is F) hydrophobic.
When placed in an aqueous solution, the hydrophobic tails of phospholipids are repelled by water and thus spontaneously come together, forming a bilayer with the hydrophobic tails sandwiched between the hydrophilic heads facing the aqueous environment.
This bilayer forms the main structural component of the plasma membrane, providing a barrier between the extracellular environment and the cell's interior.
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what direct effects does water clarity have otters
Answers
Because clearer water will increase the availability of food for otters, water clarity and otter survival are positively and significantly connected.
We are aware that the degree of light penetration through the water column in an aquatic habitat is referred to as water clarity.
More light reaches aquatic plants in waters that are cleaner than others.
Other aquatic creatures, including otters, depend on aquatic plants for oxygen, food, and shelter.
In the sense that clearer water offers more food for otter, otter survival rates are related to the water clarity of their habitat.
As a result, there is a substantial positive correlation between water clarity and otter survival since clearer water will make it easier for otters to find food.
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Predict the results of a mating between a hemophiliac male and a carrier female. Hemophilia is a SEX LINKED, RECESSIVE trait. Fill in the following information.
21. Genotype male _______
22. Genotype female _______
23. Punnett square:
% of total offspring:
24. % normal males ________
25. % hemophiliac males ________
26. % normal females _______
27. % hemophiliac females _______
28. % carriers _______
Answers
21.Genotype male: XhY
22. Genotype female: XHXh
23. Punnett square: XH Xh
24. % normal males: 25% (1 out of 4)
25. % hemophiliac males: 25% (1 out of 4)
26. % normal females: 25% (1 out of 4)
27. % hemophiliac females: 25% (1 out of 4)
28. % carriers: 50% (2 out of 4)
What is a Punnett square?The Punnett square is described as a square diagram that is used to predict the genotypes of a particular cross or breeding experiment.
We can see from the Punnett square the possible genotypes of the offspring.
We see that there are are four possible genotypes:
XHXh (carrier female) XhXh (hemophiliac female), XY (normal male), Y (normal male).The percentages shows the proportion of each genotype that is among the total offspring which is four.
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HELP QUICK PLEASE!!!
question is attached below
Answers
glad I can help :)
Answer:
Gulf of mexico.
Explanation:
Coccolithophorids and diatoms both use calcium carbonate as part of their external skeletons, or shells. True or False ?
Answers
The statement "Coccolithophorids and diatoms both use calcium carbonate as part of their external skeletons, or shells" is false.
Single celled sea algae known as coccolithophores are distinguished by their Cocco spheres, which are composed of microscopic plates known as coccoliths. Calcium carbonate is used to make coccoliths, which are placed around the cell in a certain arrangement.
Contrarily, the frustules of diatoms are composed of two valves that fit together like a petri dish. The silica frustules exhibit complex shapes and patterns that might be used for taxonomic identification.
Coccolithophores and diatoms are both primary producers with considerable contributions to the worldwide fixation of carbon. These two kinds of marine microbes differ from one another in that they utilize various materials for their exterior structures.
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A medium that enhances the growth of one particular organism in a mixed population is termed a(n)
A. synthetic medium.
B. specific culture medium.
C. complex medium.
D. selective medium.
Answers
A medium that enhances the growth of one particular organism in a mixed population is termed a(n) selective medium. So the correct option is d.
Selective media are designed to support the growth of one particular organism or group of organisms while inhibiting the growth of others. These media contain specific ingredients, such as antibiotics or dyes, that prevent the growth of unwanted organisms while allowing the desired organism to grow. Selective media are commonly used in microbiology to isolate and identify specific bacteria from complex samples, such as soil, water, or clinical specimens.
In contrast, synthetic media are made from pure chemical compounds and are used to grow bacteria that require specific nutrients that may not be present in other types of media. Specific culture media are used to grow specific types of bacteria or fungi, while complex media contain a variety of nutrients and are used to support the growth of a wide range of microorganisms.
Culture media are nutrient-rich substances used to grow and maintain microorganisms in the laboratory. Different types of media are used for different purposes, depending on the type of microorganism being cultured and the specific tests being performed.
Selective media are commonly used in microbiology to isolate and identify specific bacteria from mixed samples. These media contain ingredients that inhibit the growth of unwanted organisms while allowing the desired organism to grow. For example, MacConkey agar is a selective medium that is commonly used to isolate and identify Gram-negative bacteria, such as E. coli, from clinical specimens.
In contrast, synthetic media are made from pure chemical compounds and are used to grow bacteria that require specific nutrients that may not be present in other types of media. Examples of synthetic media include the Minimal Essential Medium (MEM) and the Dulbecco's Modified Eagle Medium (DMEM), which are commonly used to culture animal cells.
Specific culture media are designed to support the growth of specific types of microorganisms. For example, Sabouraud agar is a specific medium used for the growth of fungi, while Lactobacilli MRS agar is a specific medium used for the growth of Lactobacilli.
Finally, complex media contain a variety of nutrients and are used to support the growth of a wide range of microorganisms. Examples of complex media include Nutrient agar and Tryptic Soy agar, which are commonly used to culture a variety of bacteria in the laboratory.
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What mitochondrial chemical energy does your body make (and need) to perform a significant number of cellular functions?
Answers
Answer:
adenosine triphosphate (ATP)
Explanation:hope this helped
Convincing science evidence and data suggests that evolution:
occurred in the past, and is still occurring today
is now occurring, but did not occur in the past
occurred in the past but is no longer occurring
Answers
Answer:
Occured in the past, and is still occuring today.
Explanation:
Evolution is always happening but at a very slow pace.
select only the events that occur during mitosis and place them in the correct order. start by clicking the first item in the sequence or dragging it here the mitotic spindle aligns the chromosomes with the middle of the cell. the chromosome is replicated. sister chromatids are separated into individual chromosomes. the nuclear envelope dissolves and chromatin condenses into chromosomes. the nuclear envelope condenses.
Answers
Mitosis is the process by which one cell divides into two daughter cells. During mitosis, the following events occur in this order:
The nuclear envelope dissolves and chromatin condenses into chromosomes.The mitotic spindle aligns the chromosomes with the middle of the cell.The chromosome is replicated, resulting in two sister chromatids.The sister chromatids are separated into individual chromosomes.The nuclear envelope condenses.In the first stage of mitosis, the nuclear envelope dissolves, meaning that the membrane that surrounds the nucleus of the cell breaks down. This allows the chromatin, which are strands of DNA, to condense and form visible chromosomes.
During the second stage, the mitotic spindle begins to form. This spindle is composed of microtubules, and it helps to align the chromosomes in the middle of the cell.
During the third stage, the chromosomes are replicated, forming two identical copies of each chromosome, which are known as sister chromatids. Next, during the fourth stage, the sister chromatids are separated and move to opposite sides of the cell.
Finally, in the fifth and final stage, the nuclear envelope condenses, forming two complete daughter cells.
Therefore, Mitosis is a cell division process that occurs in a highly coordinated and sequential manner to avoid deformities. The sequence is as given above.
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Describe at least 4 concepts learned this unit in genetics. Explain why each concept is important. (Digital biology 10th grade)
Answers
Transcription and gene regulatory networks. coding and noncoding RNA mechanisms of action and function. protein synthesis are 4 concepts learned this unit in genetics.
What is genetics?
The study of genes and heredity, or how particular characteristics or traits are passed from parents to offspring as a result of changes in DNA sequence, is known as genetics. A gene is a section of DNA that has the instructions needed to create one or more molecules that support bodily function. A double helix, or corkscrew-shaped ladder, is how DNA is shaped. The bases are pairs of the four building blocks adenine, thymine, guanine, and cytosine, and the two ladder rails are referred to as the backbones. The instructions for constructing molecules, the majority of which are proteins, are included in the sequences of these nucleotides. According to researchers, there are around 20,000 genes in humans.
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c) How does photosynthesis help cellular respiration happen in a plant? (2 points)
Answers
Answer:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis
Explanation:
The brain dysfunction associated with autism spectrum disorder (ASD) can sometimes involve the cerebellum and sometimes involve the frontal cortex.
a. True
b. False
Answers
a. True is the correct answer.
What is ASD?Autism spectrum disorder (ASD) is a neurodevelopmental disorder that affects communication, social interaction, and behavior. The exact cause of ASD is not fully understood, but it is believed to involve a combination of genetic and environmental factors.
Brain imaging studies have shown that individuals with ASD often have structural and functional abnormalities in several areas of the brain, including the cerebellum and frontal cortex.
The cerebellum is involved in motor control, balance, and coordination, but research suggests that it may also play a role in higher cognitive functions, such as language, attention, and social interaction. The frontal cortex, on the other hand, is responsible for a range of executive functions, including decision-making, planning, and impulse control, as well as social cognition and emotional regulation.
The dysfunction associated with ASD in these brain regions can manifest in different ways, depending on the individual. Some individuals with ASD may have difficulty with motor coordination and balance, while others may have trouble with language and communication.
Some individuals may exhibit impulsivity, while others may struggle with social interaction and emotional regulation. Therefore, it is true that the brain dysfunction associated with ASD can sometimes involve the cerebellum and sometimes involve the frontal cortex.
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Which term describes the number of different species in an area?
Responses
A. Ecosystem
B. Habitat
C. Biodiversity
D. Biome
Answers
Answer:
Biodiversity
Explanation:
Biodiversity is the variety of life in a habitat or ecosystem
PLEASE HELP IM ABOUT TO FAIL THE CLASS!!
What is mainstreaming?
*SOCIOLOGY*
Answers
Pls help ASAP my teacher is mean
Answers
Answer:
A) the different humidity
How can environmental changes itnpact
natural selection and adaptations?
Answers
Answer:
Variation within a population makes it possible for a population to evolve over time in response to changing environmental conditions. Natural selection/survival of the fittest occurs when more offspring are produced than the environment can sustain.
Explanation:
Describe the different ways that waves interact (or interfere) with each
other?
I’ll give BRAINLIEST for the best answer.
Answers
Answer:
Reflection, refraction, and diffraction.
Explanation:
They pass through one another and may bend and spread out. Three ways they interact with one another are called reflection, refraction, and diffraction. They can not pass through a surface.
Which of the following best describes how animals and plants react to the spread of disease in a certain environment?
The number of predators increases.
The number of prey increases.
They may struggle to survive.
They move to new locations.
Answers
Answer:
they may struggle to survive
If hunters remove all of the mountain lions, what impact would that have on the trees?
Please answer with a understandable explanation, using the image attached as a helping resource . ASAP
Answers
If hunters remove all of the mountain lions, the population of Deer will definitely increase that will affects the population of trees in negative aspects.
What is the Food web?The food web may be defined as the number of food chains interconnected with one another forming a web-like pattern.
In the image given above, the food web represents the delocalization of food and energy from one organism to another.
If hunters remove all of the mountain lions, the predator of deers gets eliminated, so now they got a chance to expand their population remarkably.
If the population of deer increases, the number of trees is declining due to the fact that deers derived their energy from trees.
Therefore, it is well described above.
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Organisms which prepare food for themselves using simple naturally available raw materials are referred to as
(a) heterotrophs
(b) autotrophs
(c) parasites
(d) saprophytes
Answers
Answer:
\(\sf\fbox\red{Answer:-}\)
Explanation: Organisms which prepare food for themselves using simple naturally available raw materials are referred to as autotrophs.
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Describe what makes the Möbius strip different from a strip of paper taped in a circle
Answers
In a group of Syrian hamsters, some individuals have straight fur and others have wavy fur. In this group, the gene for the fur texture trait has two alleles. The allele for wavy fur (f) is recessive to the allele for straight fur (F).
Complete the Punnett square below to show all possible genotypes of the offspring from a cross between two Syrian hamsters.
Answers
Answer:
Therefore the genotype would be;FF 25% Homozygous straight furff 25% Homozygous wavy furFt 50% Heterozygous mixExplanation:
Genotype describes the combination of alleles that an individual has for a certain gene
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