Microcystis aeruginosis is a freshwater photosynthetic cyanobacterium. When temperatures increase and nutrients are readily available in its pond habitat, M. aeruginosis undergoes rapid cell division and forms an extremely large, visible mass of cells called an algal bloom. M. aeruginosis has a short life span and is decomposed by aerobic bacteria and fungi. Identify the metabolic pathway and the organism that is primarily responsible for the change in oxygen level in the pond between times I and II AND between times III and IV.
Answers
Complete question:
You will find the figure with cyanobacteria, decomposers, and oxygen concentration curves in the attached files.
Answer:
- between times I - II: cyanobacteria produce oxygen through the procees of photosynthesis.
- between times II - III and III - IV: decomposers consume oxygen through the process of respiration.
Explanation:
Cyanobacteria, also known as green-blue algae, inhabits the euphotic stratum, producing oxygen through the process of photosynthesis. Probably they produce among 20 - 30% of the global photosynthetic activity. When they die, they sink to deeper water strata.
At the time I, the cyanobacteria population experiences a fast growth, which can be seen through the positive sharp increase of the curve slope. The curve reaches a maximum point just before time II, where it begins to decrease. Cyanobacteria reproduce, and the population grows in size. The more cells there are, the more photosynthetic activity, and the higher amount of oxygen is produced. Following cyanobacteria growth, there is an increase in oxygen concentration, which is reflected by the sharp increase in the curve slope. Both curves are very similar, but they are separated on time, meaning that first cyanobacteria need to reproduce and photosynthesize to posteriorly observe a proportional increase in oxygen concentrations.
Just before time II, the cyanobacteria population stops growing, and at time II begins a sharp decrease in size, reflected in the curve slope. Living cells still produce oxygen, but as there are fewer cells, oxygen concentration also decreases. Cyanobacteria are decomposed by aerobic bacteria and fungi. These last organisms consume oxygen through the process of respiration. As cyanobacteria die and are decomposed, aerobic cells can reproduce at higher rates, increasing their population size. This also can be seen reflected in the decomposers curve, which is stable until time II where it shows a sharp positive increase in its slope. As decomposers' population increases, they consume more oxygen, which concentration decreases inversely proportional to the decomposers' increase. This can be seen in the curves: from time II to time III, the aerobic organisms curve increases and the oxygen curve decreases, so as the cyanobacteria curve.
Just before time III cyanobacteria population stabilizes and during time IV keeps equal. Oxygen concentration keeps following, from time II to IV. When cyanobacteria stabilize, before time III, decomposers population starts to decrease, but they still consume oxygen.
Related Questions
Glycolysis is an aerobic process. *
True
False
Answers
Answer:
False
Explanation:
Glycolysis is an anaerobic process. None of its nine steps involve the use of oxygen. However, immediately upon finishing glycolysis, the cell must continue respiration in either an aerobic or anaerobic direction; this choice is made based on the circumstances of the particular cell.
which one off this has an effect on gravity Moon
Sun
Earth
Gravity
Mass
Distance
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Example of
Methods of Philosophizing
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Answer:
There are four different methods of philosophizing namely, logic, existentialism, analytic tradition, and phenomenology. Logic is the truth based on reasoning and critical thinking. It includes analysis and construction of arguments. It serves as path to freedom from half-truths and deception.
Explanation:
hope it help[s
Which is a societal problem that science can best help solve?
bullying in schools
diabetes in children
domestic violence
rainfall patterns
Answers
Answer:
Diabetes in children
Explanation:
Answer:
It is:
B. Diabetes in childrenExplanation:
Took the test
Do environmental and genetic factors affect the growth of organisms?
Answers
Answer:
Genetic factors as well as local conditions affect the growth of organisms. − A variety of local environmental conditions affect the growth of organisms. Genetic factors affect the growth of organisms (plant and animal). The factors that influence the growth of organisms may have more than one cause.
Explanation:
Hope this helped Mark BRAINLEST!!!
Do you know the different stages through which raw agricultural materials go before they reach your table? Trace the journey of a burger bun from grains of wheat at a farm to your table. Perform online or offline research and write a report on the processes involved in manufacturing burger buns.
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PLATO ANSWER
The basic raw material for making a burger bun is flour. The major steps required for turning wheat into a burger bun are as follows:
Cultivation of wheat
Harvesting of wheat
Grinding wheat to flour
Baking flour to make buns
Let’s trace the journey.
Before a burger bun reaches the table, it goes through several processes. The farmer select wheat heads when they turn golden yellow and the kernels are hard and dry. A combine harvests the wheat and packs it in sacks. The farmer then stores the wheat in a granary and eventually sells it to a wholesale trading company. The wholesaler transports the wheat to a warehouse and then sells it to a flour manufacturer. The manufacturer`s first step is to cleanse the wheat of impurities, such as weeds, seeds, dirt, small stones, and metal pieces, by using a series of giant disks and magnets. The kernels then go through a giant bath, which separates any other heavy particles that remain. It also helps cleanse the grains. Lighter materials such as husks or flakes of stalk will wash away.
After the cleaning process, the wheat goes through rollers that crack the kernel, and then huge machines use various screens to filter the wheat pieces. In the production of white flour, air currents blow the bran away from the rest of the wheat, and then the remaining pieces of wheat go through a variety of rollers that grind it into finer powder. After each grinding, the machines sift the wheat through screens—and there are more than 20 such screens. Each screen filters finer and finer particles. Finally, the manufacturer fortifies the wheat by adding special ingredients such as vitamins and iron. The manufacturer then packs, labels, and stores the ready-to-bake flour for transportation and supply.
The packaged wheat flour reaches the store racks through a variety of distributors and suppliers and by various means of transport. Once on the shelf, it is a matter of time before a consumer purchases it. Some of the packaged products may reach industrial baking organizations.
After bringing home some flour, I unpack it and then mix it with salt, water, yeast, and a few other ingredients. Before rolling it, I have to give the dough some time to rise. The yeast in the dough makes it rise through the action of tiny bubbles of carbon dioxide. I then form the dough into the correct shapes and put in the oven to bake. In the baking process, the gas bubbles exit the dough, leaving the bread soft and fluffy. After baking and cooling, the buns are ready to become parts of mouth-watering burgers.
During cellular respiration, is energy absorbed or released? Explain
Answers
Answer:Dont worry im here to help!
Yes energy is released
Explanation:
"Energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate)."
Negative pressure rooms are sometimes referred to as source isolation rooms, while positive pressure rooms are sometime called protective isolation rooms. Explain the thinking behind these names.
Answers
Answer:
Negative pressure rooms are sometimes referred to as source isolation rooms because they prevent potentially contaminated air to exit the room.
Positive pressure rooms are also known as protective isolation rooms because they prevent the entering of any pathogen in the air to the room where a patient with a compromised immune system is staying.
Explanation:
Negative pressure rooms or source isolation rooms have lower pressure than the outside. Due to this pressure difference, air can enter the place but can not leave it, trapping the pathogens. Patients with infectious conditions are in these rooms to prevent the spreading of the disease. That is why they are also called source isolation rooms. These rooms have a system that filtrates and circulates the air.
On the other hand, in positive pressure rooms, the air pressure is higher. As a result, the air, with any potential bacteria, virus, or particles, leaves the room to keep the patient safe. They are also known as protective isolation rooms because patients with a compromised immune system are there to protect them from any pathogens in the air.
PLEASE HELP ASAP(; question in photo
Answers
Answer: it’s B
Explanation:
Which serves as a shell or skeleton for plant 
Answers
MASTERY CONNECT MITOSIS
Answers
Answer:
According to the cell cycle data provided in the table, these data indicate that cells spend most of their time preparing for the cell cycle (third option).
Explanation:
The cell cycle is divided into two major phases, interphase —without cell division— and cell division or mitosis. Interphase in turn is divided into three phases prior to the division process:
G1 phaseS phaseG2 phaseAssuming that the complete cell cycle lasts 24 hours, the cell will remain in interphase for 23 hours - preparing for the next division - investing only 1 hour in cell division or mitosis.
The data provided by the table indicate that, at a given time, there will be a greater number of cells in the interphase stages, indicating that cells spend most of their time preparing for the cell cycle.
Can you guys help me ?
Answers
how are key features of exponential functions determined and interpreted from a graph and table
Answers
Answer:
The graphs of all exponential functions have these characteristics. They all contain the point (0, 1), because a0 = 1. The x-axis is always an asymptote. They are decreasing if 0 < a < 1, and increasing if 1 < a
Explanation:
Graphs of Exponential Functions
The graph passes through the point (0,1)
The domain is all real numbers.
The range is y>0.
The graph is increasing.
The graph is asymptotic to the x-axis as x approaches negative infinity.
The graph increases without bound as x approaches positive infinity.
The graph is continuous.
Identify a criterion and a constraint for lighthouse signals
Answers
Answer: The criterion and constraint for the identifying the lighthouse signals are as follows:
Explanation:
The constraints for the lighthouse signals are to the conditions that are to satisfied in accordance with the design. The display of the lighthouse can display a single flash which can repeat at 5, 10, and 15 seconds of the intervals.
A lighthouse is constructed near the seashore so that the water transportation vehicles can detect the light and reach to the shore.
The diagram below shows how a chemical message produced by one cell is received by other cells
If these chemical messages are destroyed, the target cells will
Answers
Answer:
not respond with appropriate actions
Explanation:
produce their own chemical messages
not respond with appropriate actions
develop different receptors
no longer be produced in the organism
b is correct
answer from a quiz
The California current is an ocean current that moves cold water from the north along the west coast of the United States. The main effect of this current is to make the climate of the west coast .
A.
dryer
B.
warmer
C.
cooler
D.
wetter
Answers
Answer: D cooler
Explanation:
The California Current is a cold water Pacific Ocean current that moves southward along the western coast of North America, beginning off southern British Columbia and ending off southern Baja California Sur.
Answer:
cooler
Explanation:
Study island
The process of forming the digestive tract is called
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Answer:
Food undergoes three types of processes in the body: Digestion. Absorption. Elimination.
Answer:
Absorption
Explanation:
What is the importance of testicular self exam
Answers
Answer:
Testicular self-exam is important because it helps detect abnormalities, especially cancer. Physicians don't check the testicles as much, so it is important to self-exam more often. Testicular cancer is more likely to be found if checked monthly. Besides cancer, routine exams create a feel for the characteristics of the testicles and would be easier to detect a sudden change.
Explanation:
What life process builds large complex substances from smaller, simpler substances?
A. Regulation
B. Growth
C. Synthesis
D. Excretion
Answers
Hope I could help:)
Have a great day:)
In order to dilute a solution,you need to____________________
A. Add more of the solid
B. Add more power
C. Find the mass
D. Find the volume
Answers
In order to dilute a solution, you need to add more of the solvent. The correct option is A.
What is dilution?Dilution means decreasing the concentration of the solution, this can be done by adding more solvent without adding more solute. The solute is the solid material and the solvent the liquid.
Thus, the correct option is A. Add more of the solid.
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2. What source of energy do organisms use if they don't use the sun's energy?
Answers
Answer:
Most likely, the answer is "Other organisms"
Explanation:
For example, we use animals or plants to gain energy (eating)
1. A rift valley is evidence of what type of plate boundary?
A) convergent
B) dilvergent
C) transtorm
D) transverse
Answers
Macromolecules
Please answer the questions below as you read the CK12 sections assigned (Carbon, Carbohydrates, Proteins, Lipids, and Nucleic Acids). Make sure you are answering in complete sentences. Do not copy and paste information from the internet, and make sure your answers are in your own words. There are several short sections assigned for today's work. You do not need to do practice questions in CK12 unless you would like to for extra practice. See you tomorrow!
Carbon
What is a compound?
Consisting of two or more simple parts or individuals in combination.
Explain why carbon is essential to all known life on Earth.
It makes up every living thing's cells.
What are the four main types of organic compounds?
Carbohydrates, lipids, proteins, and nucleic acids.
Which type(s) of organic compounds provide energy?
Carbohydrates provide energy.
Which organic compound stores genetic information?
lipids
Examples of proteins include ____________.
Meat, vegetables, and fruit.
Carbohydrates
What is a carbohydrate?
any of a large group of organic compounds occurring in foods
List three facts about glucose.
Glucose is a kind of sugar. Glucose is made by plants. Its chemical formula is C6H12O6
Assume that you are trying to identify an unknown organic molecule. It contains only carbon, hydrogen, and oxygen and is found in the cell walls of a newly discovered plant species. What type of organic compound is it? Why?
Compare and contrast the structures and functions of simple sugars and complex carbohydrates in the following table.
Structure
Function
Simple Sugars
Complex Carbohydrates
Proteins
Proteins are made out of ____.
What determines the primary structure of a protein?
State two functions of proteins.
What are enzymes?
Describe the role of hemoglobin.
It enables the travel of oxygen in the human body.
Lipids
What is a lipid? Give three examples.
Butter is a fat that is a solid at room temperature. What type of fatty acid does butter contain? How do you know?
Explain why molecules of saturated and unsaturated fatty acids have different shapes.
Which lipid is the main component of cell membranes?
Nucleic Acids
Identify the three parts of a nucleotide.
___
What is DNA?
Deoxyribonucleic acid
What are complementary base pairs? Give an example.
___
Describe the shape of DNA.
Double helix
How are DNA and RNA related to proteins?
___
give the Function, Monomer (subunit),and Example
Carbohydrate
Protein
Lipid
Nucleic
Acid
Answers
Answer:
It depends on the location on the periodic table and if it is easier to loose are gain electrons to fill the valence electron shell.
The electron affinity of the neutral atom of the element can show indicate whether or not the element is going the make positive or negative ions. The higher the electron affinity is, the more the neutral atom wants to gain electrons. The electron affinity for alkali metals and alkaline earth metals are low due to the fact that they are located on the left of the periodic table and only needs to loose 1 or 2 electrons to have a completed valence shell. That means that they want to form cations (loose electrons). Halogens have a high electron affinity since they are located on the right of the periodic table and only have to gain 1 electron to get a completed valence electron configuration. That means that it forms anions.
Explanation:
It depends on the location on the periodic table and if it is easier to loose are gain electrons to fill the valence electron shell.
What is the electron affinity?The electron affinity of the neutral atom of the element can show indicate whether or not the element is going the make positive or negative ions. The higher the electron affinity is, the more the neutral atom wants to gain electrons.
The electron affinity for alkali metals and alkaline earth metals are low due to the fact that they are located on the left of the periodic table and only needs to loose 1 or 2 electrons to have a completed valence shell.
That means that they want to form cations (loose electrons). Halogens have a high electron affinity since they are located on the right of the periodic table and only have to gain 1 electron to get a completed valence electron configuration. That means that it forms anions.
Therefore, It depends on the location on the periodic table and if it is easier to loose are gain electrons to fill the valence electron shell.
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Which solution is more concentrated?
Solution 1:
500 mL of water
100 g of salt
Solution 2:
500 mL of water
90 g of salt
A. Solution 1
B. Solution 2
C. Both have the same concentration
Answers
Answer:
A (Solution 1)
Explanation:
Since both solutions have an equal volume but Solution 1 has a greater amount of solute (100 g in Sol. 1 > 90 g in Sol. 2), Solution 1 is more concentrated.
Determine the parental genotypes and proportion of offspring genotypes for locus 2. What are the genotypes of the parents with respect to locus 2 (i.e., alleles B and b)
Answers
Answer and Explanation:
Alleles are the different varieties of genes. For every gene, somatic cells have two alleles.An allele that is not expressed by an organism might be passed to the offspring of The organism provides one allele.
It is difficult to conclude which two alleles of a gene exist within the chromosomes of organisms. that organism and can express in the next generation.
The parental genotypes can be determined by PUNNETT SQUARE, in which we use two letters to signify the genotype.
As the white throat code and the red throat code are alleles.
A lowercase letter represents the recessive form of a gene (allele), and a capital letter represents the dominant form of a gene (allele). For example, for the red-throated bird, white throat is a recessive trait, and red throat is a dominant trait.
There are basic steps of using Punnett Square. Step one is to determine the parent organism genotypes then write down “mating.” Draw a p- square. For each parent, split the letters of the genotype. Then place them outside the p-square. By filling the p-square, determine the genotype of the offspring. Then summarize results.
Which example is an abiotic factor of an aquarium environment?
A. bacteria
B. sunfish
C. coral
D. water
Answers
Answer:
first of all coral is no right second of all the answer is water
Explanation:
Answer: the right answer for this question is
D) Water
Explanation: I took the quiz hope this helps!
Enzymes are involved in biochemical reactions within the cells of all living organisms. Which statement best describes how enzymes affect biochemical reactions?
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Answer:
Enzymes are catalysts that lower the activation energy required for reaction to take place. Enzymes speed up reactions.
Explanation:
How might Kangaroo population suddenly increase? How might this affect the ecosystem?
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Answer:
The kangaroo population could suddenly increase if the predator of the kangaroo found something else to hunt, or started to go extinct. If this were to happen, then the prey of the kangaroo would most likely go extinct due to the sudden rise in population of the kangaroo. If there were more kangaroo, then there would be less of whatever the kangaroo ate, then the prey of whatever the kangaroo ate would suddenly increase, it goes all the way down the chain.
hope this helps!!!
Explanation:
what are forms of kinetic energy travelling as electromagnetic waves? Examples include radio waves, visible light, and ultraviolet radiation
A) electromagnet radiation
B) thermal energy
C) kinetic energy
D) potential energy
please help
Answers
Answer:
A electromagnetic radiation
Animals like lions and wolves reproduce using sexual reproduction.
O True
False
Answers
Answer:
yes
there mammals so they need to have sexual reproduction compared to fish they dont need sexual reproductions to have a organism (baby)
Explanation:
Yes, the animals like wolves and lions reproduce by se-xual reproduction.
Se-xual reproduction in mammals:The process of production of offspring by combining genetic components from two individuals of different se-xes, that is, male and female is termed se-xual reproduction. In higher animals like mammals, that is, lions and wolves, the process of se-xual reproduction takes place.
The mammals generate gametes, that is, egg and sperm via the process of meiosis in gonads, that is, ovaries in females and testes in males. The production of eggs takes place by the process of oo-genesis, and the production of sperm takes place by sperma-togenesis.
Afterwards the fusion of male and female gametes takes place, that is, the process of fertilization occurs and generate a diploid zygote.
Thus, the given statement is true.
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