Table 4: Water Quality vs. Fish Population
Dissolved Oxygen (ppm) 0 2 4 6 8 10 12 14 16 18
Number of Fish Observed 0 1 3 10 12 13 15 10 12 13
Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water
Answers
Answer:
One possible hypothesis that could be developed from this data is that the number of fish observed in the body of water is positively correlated with the amount of dissolved oxygen in the water sample. This hypothesis suggests that as the amount of dissolved oxygen in the water increases, the number of fish observed in the water also increases.
This hypothesis is based on the observation that the number of fish observed in the body of water increases from 0 to 13 as the amount of dissolved oxygen in the water sample increases from 0 to 10 ppm. However, the number of fish observed decreases slightly at 14 ppm and then increases again at 16 ppm. This could suggest a possible threshold effect, where a certain level of dissolved oxygen is necessary for fish survival and growth, but too much dissolved oxygen could also have negative impacts on fish populations.
Overall, this hypothesis could be further tested and refined through additional data collection and analysis, as well as consideration of other factors that could influence fish populations, such as water temperature, pH, and nutrient levels.
Hope this helps!
Related Questions
explain how chloroplasts help a plant to survive
Answers
Chloroplasts are a type of organelle in plant cells that produce the basic sugars. They fix inorganic carbon (CO2), and transform it into organic carbon. Starting from the CO2, chloroplasts produce glucose, using sunlight as a source of energy. This process involves chlorophyll and electron transfer. The products of CO2 fixation can be used either to obtain other organic products (like lipids) or to produce energy (as ATP), both necessary for cell (and plant) survival.
B-cells do which of the following things?
a. Make antibodies
b. Inhibit Function of other T-cells and B-cells
c. Stay in circulation to speed up response to an antigen the next time
d. Stimulate Function of other T-cells and B-cells
e. Take in and process antigens binding them to MHC protein
f. Attack cells infected by viruses
Answers
Answer:
a. Make antibodies
Explanation:
B-cells is one of the two types of lymphocytes or white blood cells produced in the marrow of the bone (the other being T-cells). B-cells are a part of adaptive or acquired immunity in our body i.e. a learned defense after a pathogen might have penetrated.
B-cells help combat foreign Invaders that make way into the body by producing ANTIBODIES, which are specific to a particular pathogen. Note that, the B-cells learnt to combat based on a previous infection of such pathogen. In response to an antigen, the B-cells produce the plasma cells, which in turn produce the antibodies.
What is one process that moves carbon from the atmosphere into a biotic component of theecosystem?
Answers
ANSWER: Photosynthesis
Explanation: Plants take in carbon dioxide and convert it to sugar through photosynthesis. The sugar product can be used by the plant or can be consumed by another organism by eating the plant.
The picture below shows flowers on a tomato plant.
Lacy wants to design an experiment that will show which part of a tomato flower grows into the tomato fruit. What measurement could she make to study how the fruit grows?
Answers
Lacy wants to design an experiment that will show ovary part of a tomato flower grows into the tomato fruit.
What is ovary for plant?The female reproductive organ present in flowering plants is the ovary. It is present in the flower's gynoecium. It is a portion of the pistil that holds the ovules and is located near the base of the sepals and petals. A single carpel or numerous carpels joined together can form the pistil.
Ovaries, as we know, are an essential component of the plant's female reproductive system. Well, the ovaries are where pollen is kept before developing into ovules and ultimately seeds. These seeds then germinate, causing the ovaries to grow and convert into fruits.
Even though the blooms are self-fertile, the pollen is nevertheless moved to the female half of the blossom by wind and the buzzing of bees' wings. The young tomato grows after fertilization, when the petals and stamens fall off.
So, Lacy will show ovary part of a tomato flower grows into the tomato fruit.
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In the following DNA secuence how many units of information (codons) are?ATCGACGTTGCAGCAGTAGTC
Answers
When contrasting the neuroimaging scans of the brains of normal people and those with schizophrenia, it has been found that people with schizophrenia had enlarged brain ventricles developmental cascade hypothesis loosening of associations increased assertive communication
Answers
I apologize for the confusion, but there seems to be a mix of different concepts and statements in your sentence. Neuroimaging studies have indeed revealed differences in brain structure and activity between individuals with schizophrenia and those without the disorder, but the specific factors you mentioned are not all directly related to these differences. Let's break down each concept separately:
1. Enlarged brain ventricles: It is true that some studies have found that people with schizophrenia may have enlarged brain ventricles. Ventricles are fluid-filled spaces in the brain, and their enlargement can be an indication of reduced brain volume in certain regions.
2. Developmental cascade hypothesis: The developmental cascade hypothesis is a theoretical framework that suggests that early disruptions in brain development and functioning may lead to cascading effects that contribute to the development of schizophrenia later in life. It proposes that abnormalities in brain circuits and networks can impact various cognitive, emotional, and behavioral processes.
3. Loosening of associations: Loosening of associations refers to a symptom of schizophrenia characterized by disorganized thinking and difficulty maintaining logical and coherent connections between thoughts and ideas. It can manifest as speech that jumps from one topic to another without clear connections.
4. Increased assertive communication: While assertive communication is a general communication style characterized by expressing one's needs, opinions, and feelings in a respectful and direct manner, it is not directly associated with schizophrenia. Communication difficulties, such as disorganized speech or decreased verbal fluency, are more commonly observed in individuals with schizophrenia.
It's important to note that understanding schizophrenia and its underlying neural mechanisms is a complex and ongoing area of research. Neuroimaging studies have contributed valuable insights into the brain differences associated with schizophrenia, but the disorder involves multiple factors and is not solely characterized by any single abnormality or symptom.
Match the type of of evidence for evolution with the correct example.
vestigial structures
homologous structures
DNA sequence data
analogous structures
The jointed legs of insects and vertebrates arose
independently, indicating a different evolutionary origin.
arrowBoth
Genes involved in RNA replication are conserved among
bacteria and animals, suggesting a common evolutionary origin.
arrowBoth
The inner ear bones of mammals have evolved from
bones that form the jaws of reptiles.
arrowBoth
Ostriches have wings similar in form to those of their
ancestors, but that do not allow the birds to fly.
arrowBoth
Answers
vestigial structures: Ostriches have wings similar in form to those of their ancestors, but that do not allow the birds to fly.
What is data about DNA sequences?Comparable skeletal systems: Mammals' inner ear bones descended from reptiles' jawbones. Data on DNA sequences: Animals and bacteria share genes involved in RNA replication, pointing to a shared evolutionary ancestor. Similar morphology: The independent appearance of jointed legs in insects and vertebrates points to a different evolutionary origin.
What do homologous and comparable structures actually mean?For instance, there are anatomical similarities between the bones in a human arm and the front flipper of a whale. Here, the constructs are not equivalent.
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Which of the following is the classic hot and dry desert? a. arid desert b. coastal desert c. cold desert d. none of the above Please select the best answer from the choices provided A B C D
Answers
Answer:
a. arid desert
Explanation:
hope it helps!
1. State your claim. Make sure your claim fully explains where the matter and energy
went as the fruits decomposed.
Answers
Claim: The matter and energy from decomposing fruits are primarily transformed and dispersed through various biological and physical processes.
Biological Processes: Decomposition of fruits involves the activity of various microorganisms, such as bacteria and fungi. These organisms break down the complex organic compounds present in fruits into simpler molecules through enzymatic reactions.
a. Gaseous Transformation: Microorganisms produce gases like carbon dioxide, methane, and nitrogen compounds as byproducts of their metabolic activities. These gases are released into the atmosphere, contributing to the carbon and nitrogen cycles.
b. Liquid Transformation: Decomposition also generates liquid byproducts, such as water, organic acids, and other soluble compounds. Some of these liquids are absorbed by the soil, contributing to its nutrient content and supporting the growth of other organisms.
c. Solid Transformation: The breakdown of organic matter during decomposition leads to the formation of solid residues, commonly known as humus. Humus contains nutrients that can be absorbed by plants, completing the nutrient cycle.
Physical Processes: Several physical factors play a role in the dispersion of matter and energy during fruit decomposition.
a. Heat Energy: As microorganisms break down organic matter, they release heat energy as a byproduct. This energy is dissipated into the surroundings, contributing to the overall thermal energy of the environment.
b. Evaporation: Fruits contain a significant amount of water, and as decomposition progresses, water is gradually released through evaporation. This process transfers the energy associated with water molecules to the surrounding air, resulting in the dispersion of energy.
c. Mechanical Dispersal: Various physical forces, such as wind and water, can disperse the decomposed fruit matter. For example, wind can carry small particles like dust or pollen, which may contain microscopic remnants of decomposed fruit. Similarly, water can transport dissolved nutrients from the decomposed fruit to different locations.
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The processes illustrated in the models depicted above all result in which of the following?
A) Transcription
B) An increase in genetic variation
C) horizontal gene transfer
D) an increase in the chromosome number
Answers
The process illustrated in the figure shows an increase in genetic variation.
The true choice is B
Genetic variation is a variation that occurs in the genome of an organism either in nucleotide bases, genes, or chromosomes. Genetic variation at the basic level is shown by differences in the base sequences of the nucleotides (adenine, thymine, guanine, and cytosine) that make up DNA in cells.
Genetic variation can be caused by several events, namely crossing over, conjugation, mutation, and fertilization. Genetic variation can be one of the factors that influence evolution.
Genetic variation is very influential in evolution because the greater the genetic variation in a population, the greater the chance for that population to adapt to environmental changes and disease.
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TRUE OR FALSEin non-dividing cells, the coiling and folding of dna is organized into bead-like structures called nucleosomes, which are the result of dna being wrapped around a protein core of histones.
Answers
The given statement "in non-dividing cells, the coiling and folding of DNA is organized into bead-like structures called nucleosomes, which are the result of DNA being wrapped around a protein core of histones" is true because, in non-dividing cells, the coiling and folding of DNA are organized into bead-like structures called nucleosomes, which are the result of DNA being wrapped around a protein core of histones. These nucleosomes are further organized into a higher-order structure called chromatin, which is the material that makes up chromosomes.
The nucleosome is the basic structural unit of DNA packaging in eukaryotes. Each nucleosome consists of a segment of DNA wound around eight histone protein molecules. The histones provide a scaffold for the DNA to wrap around and help to compact the DNA into a smaller space. This compacting allows the DNA to fit within the nucleus of the cell.
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An ecological term that best describes the picture below would be
A. organism
B. population
C. community
D. ecosystem
Answers
An ecological term that best describes the picture below would be community. Thus, option C is correct.
In science, a community, also known as a biological community, is a conversing source of numerous species in a centralized place.
A biological community, for example, is a forest of trees and undergrowth plants inhabited by animals and rooted in soil containing bacteria and fungi.
Strong communities are crucial because they are a source of social connection and a sense of community for many people.Participating in a community united by attitudes, values, and goals is a necessary component of living a fulfilling life.
It includes elements like image, spirit, character, and pride, as well as processes like interaction, inter-group interaction, and networking. A community is made up of individuals with diverse interests, experiences, and backgrounds.
Thus, the correct option is C, as per the given scenario.
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Give three examples of reproductive isolation, and describe how each can occur. (6 pts)
Answers
Answer:
Reproductive isolation is the inability of individuals from different species to produce viable offspring. There are several mechanisms of reproductive isolation. Here are three examples:
Geographic isolation: This occurs when two populations of the same species are separated by a geographic barrier, such as a mountain range, an ocean, or a desert. Over time, the two populations evolve separately due to different environmental pressures and mutations. If the barrier is removed, the two populations may have diverged so much that they are no longer able to interbreed and produce viable offspring.Behavioral isolation: This occurs when two populations of the same species have different courtship rituals or mating behaviors. For example, two bird species that look similar may have different songs or dances that they use to attract mates. If an individual from one species encounters an individual from the other species, they will not recognize each other's mating signals and will not mate.Hybrid inviability: This occurs when two species are able to mate and produce offspring, but the offspring are not viable and cannot survive to adulthood. This may occur if the two species have different numbers of chromosomes, or if the genes from the two species are not compatible. For example, mules are the offspring of a horse and a donkey, but they are usually sterile and cannot produce viable offspring of their own.Red is dominant over yellow. If a male purebred red nose (RR) is crossed with a female hybrid rose (Rr) what percent of roses will be red? 100% 75% or 25%
Answers
Answer:
100%
Explanation:
since RR is dominant and Rr is hybrid R is still dominant. red will show morethe combinations would be Rr Rr. Rr. Rr.
In a diploid species of plant, the genes for plant height and fruit shape are syntenic and separated by 18 m.u. Allele D produces tall plants and is dominant to d for short plants, and allele R produces round fruit and is dominant to r for oval fruit. The expected percentages of progeny phenotypes are listed below:
tall oval = 41%
short round = 41%
tall round = 9%
short oval = 9%
(a) What proportion are expected to be tall and produce round fruit?
Answers
In a diploid plant species, the proportion of progeny expected to be tall and produce round fruit is 32%.
In a diploid species of plant, the genes for plant height and fruit shape are syntenic and separated by 18 m.u. The expected percentages of progeny phenotypes are tall oval = 41%, short round = 41%, tall round = 9%, and short oval = 9%.To determine the proportion of progeny expected to be tall and produce round fruit, we need to consider the alleles for each trait. Allele D produces tall plants (dominant) and allele d produces short plants (recessive). Allele R produces round fruit (dominant) and allele r produces oval fruit (recessive).From the given percentages, we can deduce that tall ovals and short ovals combined make up 9%. Since tall oval is 41% and short oval is 9%, the proportion of progeny expected to be tall and produce round fruit is 41% - 9% = 32%.Therefore, the proportion of progeny expected to be tall and produce round fruit is 32%.For more questions on diploid plant
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true or false: concept that cells or organisms maintain specific internal conditions
Answers
True hope it helps :>
Answer:
A balance inside the body or cells of organisms is called homeostasis.
Explanation:
Hope this helps. God bless
Which of the following is an example of gene flow?
O The movement of people on Earth steadily increases and alters the course of human evolution
An earthquake results in the formation of a canyon, splitting a population of toads apart
O A fire drastically reduces the size of a white-tailed deer population. The remaining individuals spread out throughout the remaining forest
A small population of grasshoppers gets blown away and isolated during a storm. The gene pool of the new population is different from the original population
Answers
An example of gene flow is: A. The migration/movement of people on Earth which gradually increases and alters the course of human evolution.
What is Gene Flow?Gene flow, which can also be referred to as gene migration, is the transfer of genes or genetic material from one population of a species to another.
Migration of humans from one region to another leads to people of one race intermarrying with people of another entire race.
For example, A European migrating to North America, and getting married to a North American thereby giving birth to offspring exhibiting traits of booth a European and a North American. A gene flow has occurred.Therefore, an example of gene flow is: A. The migration/movement of people on Earth which gradually increases and alters the course of human evolution.
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Answer:
A
Explanation:
I took the test
Perseverance was the third robotic visitor from Earth to arrive at Mars in February 2021. Earlier this month, two other spacecraft, Hope from the United Arab Emirates and Tianwen-1 from China, entered orbit around Mars. Why is there so much interest in Mars? How are the three missions similar and different? Review the infographic for inspiration.
Answers
Answer:
Mars is a popular point of interest due to how it likely used to be very similar to the Earth today. All three spacecraft sent to Mars have a common goal: To find evidence of previous or existing life. Perseverance and Tianwen-1 are both collecting Martian soil samples to be studied for past or present microbial life, and Tianwen-1 is also able to scan the underground for water reservoirs. The UAE's Hope orbiter will orbit the red planet to study its weather patterns to see how weather changes the release of hydrogen and oxygen into space and create a map of the Martian climate.
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I don't know how long the answer is supposed to be, so if it's supposed to be longer just try to stretch out some sentences, or use the sources I listed below to get more information. If I helped, Brainliest would be appreciated :)
Sources:
1) https://www.businessinsider.com/three-mars-missions-arrive-february-from-nasa-china-uae-2021-1
2) https://www.space.com/16777-curiosity-rover-many-mars-missions.html
3) https://hub.jhu.edu/gazette/2015/january-february/ask-an-expert-why-care-about-mars/
4) https://en.wikipedia.org/wiki/Tianwen-1
a round pizza displays _______ symmetry, whereas a slice of pizza displays _______ symmetry.
Answers
A slice of pizza has bilateral symmetry, but a round pizza has radial symmetry.
Why is this symmetry known as radial?A symmetry known as spherical shape is one in which sides show similarity or regularity of portions around for a central axis. Left or right sides are absent. Contrarily, bilateral symmetry, which is more prevalent than radial symmetry, is the opposite.
What does radial example mean?In radial symmetry, identical components are arranged in a circular pattern around the center axis. As a result, any direction of cutting thru the axis provides identical components. For instance, hydra, starfish, and obelia (Coelenterata).
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![helpppppppppppppppppppppppppppppppppppppp]pp]p]pp]pp]](https://i5t5.c14.e2-1.dev/h-images-qa/contents/attachments/QOKxx0WEw6qGvbWYKNtU2jvUja5ioubl.jpeg)
Answers
Answer: e
Explanation:
Answer:
e
Explanation:
I just copied the other guys answer for points lol
What must be done to coal before it can be used as fuel?
It must be made to stick together.
It must be compressed into a very dense substance.
It must be ground into powder.
It must have flammable material added to it.
Answers
Answer:
It must be ground into powder.
Explanation:
"Coal" is one of the nonrenewable resources that humans use for fuel. In order to produce energy, it needs to be burned first. However, efficient combustion happens when the coal is pulverized into fine powder first. This allows the coal to mixed with hot air sufficiently in order to release heat. This then allows the "generation of electricity" that is often used for cooking, lighting, cooling, transportation, healthcare, etc.
During an evening hike, you see a shooting star just like the one pictured here.
In which layer of the atmosphere does this shooting star occur?
troposphere
stratosphere
mesosphere
thermosphere
Answers
The shooting star occurs in the mesosphere, which is the layer of the atmosphere above the stratosphere and below the thermosphere.
The shooting star observed during an evening hike occurs in the mesosphere. Shooting stars, also known as meteors, are visible when small particles, typically from comets or asteroids, enter the Earth's atmosphere and burn up due to friction with the air molecules. The mesosphere is the third layer of the Earth's atmosphere, located above the stratosphere and below the thermosphere. It extends from about 50 to 85 kilometers (31 to 53 miles) above the Earth's surface. In the mesosphere, the air is thin and the temperature decreases with altitude. This layer is where most meteors burn up and produce the phenomenon of shooting stars that we observe from the ground.For more such questions on Mesosphere:
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What is reduced during glycolysis?
Answers
Answer:
There is one redox reaction during glycolysis. The oxidation of glucose begins during glycolysis. NAD+ accepts the electrons during the oxidation, and as a result it gets reduced. A total of 2 NADH are produced.
Explanation:
Answer:
During glycolysis, NAD is reduced
Drag the cards to the appropriate spaces In the diagram. Each space will have a term and definition (The terms and definitions are below the picture.)
Answers
In the given image, the heating of pan is conduction, of that of water is convection and release of heat from heater is radiation.
What is heat transfer?The generation, consumption, conversion, and exchange of thermal energy across physical systems is the focus of the thermal engineering field of study known as heat transfer.
Different heat transmission techniques, including thermal conduction, thermal convection, thermal radiation, and energy transfer by phase changes, are categorised.
In conduction, molecules collide with one another and exchange kinetic energy. When hot air rises, convection takes place, allowing cooler air to enter and be heated.
Accelerated charged particles emit electromagnetic radiation, which we experience as heat, and this is known as thermal radiation.
In the illustration, conduction heats the pan, convection heats the water, and radiation heats the heater.
Thus, this can be concluded regarding the given image.
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What is the main difference between primary and secondary ecological succession?
Answers
Explanation:
In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area previously occupied by living things is disturbed—disrupted—then recolonized following the disturbance.
What are the characteristic of solute plssss po
Answers
Solute is the substance that dissolves
Solute is a minor componentSolvent is a major componentSolutions is a mixture where the solute is uniformly distributed in the solvent.Solution is homogeneous mixture that contains particles the size of a typical ion or small molecule.The mass of the solute dissolved per unit volume of solvent is called ConcentrationSolubility is The concentration of a saturated solutionSolutes lower the freezing point and raise the boiling point of a solvent.Saturated Solution is a solution in which no more solid can be dissolvedUnsaturated Solution is solution in which more solid can be dissolvedPrecipitate is a solid that crystallizes out of a saturated solution as it is cooled.To know more about solute visit :
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Atoms are represented by circles, and molecules are represented by circles that are connected to each other. The different colored circles represent different kinds of atoms. Which of the following could represent a chemical reaction?
Answers
The correct option that represent the chemical reaction is C.
Chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products. for example C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy. Substances that take part in a chemical reaction are called reactants. The substances that are formed are called products. The new products have various different properties from the reactants.
Chemical reactions occur when chemical bonds between atoms are formed or broken. Chemical reactions can be classified into five basic types such as acid–base reactions, exchange reactions, condensation reactions and oxidation–reduction reactions.
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5. Why was dark wing color advantageous for moths in the late 1800s in England?
A new species of bird evolved that ate only white moths.
Blending into darkened tree bark hid them from predators.
People sprayed chemicals that killed only the white moths.
The eggs of the dark moths survived the industrial pollution.
Answers
Answer:
Blending into darkened tree bark hid them from predators.
Explanation:
Answer: b. Blending into darkened tree bark hid them from predators.
Explanation: pearson/gradpoint
During what stage do the chromosomes pull a part
Answers
Answer:
Anaphase
Explanation:
The sister chromatids separate from each other and are pulled toward opposite ends of the cell. Each is now its own chromosome. The chromosomes of each pair are pulled towards opposite ends of the cell.
Answer:
Anaphase
Explanation:
After metaphase is complete, the cell enters anaphase. During anaphase, the microtubules attached to the kinetochores contract, which pulls the sister chromatids apart and toward opposite poles of the cell . At this point, each chromatid is considered a separate chromosome.
How can natural selection and genetic drift impact the evolution of a species?
Answers
Answer:
Both natural selection and genetic drift can impact the evolution of a species in different ways. Here are some examples:
Natural selection can cause the evolution of new adaptations that improve the fitness of a population. For example, if a population of birds lives in an environment with two types of seeds, birds with larger beaks may be better able to crack open the larger seeds and have a higher chance of survival and reproduction. Over time, the frequency of the larger beak trait may increase in the population, leading to the evolution of a new adaptation.
Genetic drift can cause the loss of genetic diversity within a population, which can reduce the ability of a population to adapt to changing environmental conditions. For example, if a population of insects experiences a severe reduction in population size due to a natural disaster, certain alleles may be lost from the population due to chance events. This can reduce the genetic diversity of the population and make it more vulnerable to environmental changes in the future.
Explanation: