What degrades the organic material in the secondary stage aerobic treatment?
Answers
In the secondary stage of aerobic treatment, organic material is degraded by microorganisms such as bacteria and fungi.
These microorganisms consume the organic material as a food source and break it down into simpler compounds such as carbon dioxide, water, and other nutrients. These bacteria use the oxygen provided in the wastewater through the aeration process to respire and convert organic matter into cellular energy, carbon dioxide, and water. The bacterial population is typically dominated by species of the genera Pseudomonas, Aeromonas, and Alcaligenes.
Fungi and protozoa are also present in the wastewater and can play a role in organic matter degradation, although to a lesser extent than bacteria. Fungi can break down complex organic molecules such as lignin and cellulose, while protozoa can feed on bacteria and other small organisms, helping to regulate their population and prevent biomass buildup.
Overall, the degradation of organic material in the secondary stage of aerobic wastewater treatment is achieved through the action of a diverse and complex microbial community, which work together to convert the organic matter in the wastewater into simpler compounds that can be removed or reused.
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Related Questions
The number of fatty acids chains present in a molecule of a
phospholipid is _
Answers
The molecule of phospholipid contains two fatty acid molecules linked to -OH groups and a nitrogen-containing base bound to the phosphate group.
Phospholipids are a class of lipids whose molecule has a hydrophilic head containing a phosphate group and two hydrophobic tails derived from fatty acids, joined by an alcohol residue.
Thus, it has a strongly non-polar and hydrophobic tail consisting of fatty acid chains and a polar and hydrophilic head comprising a negatively charged phosphate group and a positively charged base. Because of this dual solubility, the phospholipids are called AMPHIPHATIC lipids.
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The shells of single-celled plankton that sank to the bottom of the ocean has two varieties of which type of atoms?
A. Phosphorous isotopes
B. Carbon isotopes
C. Sodium isotopes
D. Oxygen isotopes
Answers
Answer: Oxygen Isotopes!
Explanation: I just took the quiz and I got it correct!
please answer this for me
Answers
i think im pretty sure its A
During mitosis _____ diploid cell divides to produce ____ new daughter cells. Each of the new cells is also _____
and is _____
to the original cell.
Answers
Answer:
gamete, brand , diploid, copy
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Explain how you could change the set-up of this lab (erosion model) up to test how another variable affects erosion. How would do you think your data would change?
Answers
Energy requiring metabolic pathways that yield complex molecules from simpler precursors are: A) amphibolic. B) anabolic. C) autotrophic. D) catabolic. E) heterotrophic
Answers
Energy requiring metabolic pathways that yield complex molecules from simpler precursors are: anabolic. The correct option is (B).
Anabolic pathways are those metabolic pathways in which simple molecules are combined to form more complex molecules. These pathways require energy, usually in the form of ATP, to drive the chemical reactions that synthesize complex molecules from simpler precursors.
Anabolic pathways play an important role in building the macromolecules needed for cellular structures and functions, such as proteins, nucleic acids, and complex carbohydrates. These pathways are also involved in the storage of energy in the form of glycogen, lipids, and other complex molecules.
Examples of anabolic pathways include protein synthesis, DNA replication, and glycogen synthesis. These pathways are often linked to catabolic pathways, which break down complex molecules into simpler ones and release energy.
Together, anabolic and catabolic pathways maintain the balance of chemical reactions in the cell, allowing it to grow, divide, and carry out its functions.
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what is the fluid portion of the chloroplast outside of the thylakoids
Answers
Answer:
stroma
Explanation:
The stroma is the fluid portion of the chloroplast located outside the thylakoids. 6. The visible light absorbed by chlorophyll increases the energy level of the chlorophyll's electrons.
Answer:
I'm pretty sure it's stroma
pairs of tiny threadlike bodies that carry genes are
Answers
Pairs of tiny threadlike bodies that carry genes are chromosomes.
Chromosomes are structures found in the nucleus of cells and contain DNA molecules that carry genetic information. They are composed of DNA tightly wrapped around proteins called histones, which help in the organization and packaging of the DNA. Each species has a specific number of chromosomes, and humans typically have 46 chromosomes, arranged in 23 pairs.
Chromosomes are responsible for transmitting genetic traits from one generation to the next through the replication and segregation of their genetic material during cell division.
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You would like to isolate a Gram negative organism from a mixture of Gram negative and Gram positive organisms. What media would you select?
Answers
MacConkey is the media used to isolate a Gram negative organism from a mixture of Gram negative and Gram positive organisms.
Only gram-negative bacterial species can grow on MacConkey agar, which is a selective and differentiating agar that may further distinguish the gram-negative organisms based on their lactose consumption.
Gram staining is a method frequently used to distinguish between two sizable groups of bacteria based on the distinct components of their cell walls. By staining these cells red or violet, the Gram stain method distinguishes between Gram positive and Gram negative groupings.
Thick layers of peptidoglycan make up the cell wall of gram-positive bacteria. In contrast, gram-negative bacteria have a cell wall made of very thin peptidoglycan layers.
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Why do frogs undergo hibernation?
Answers
Frogs are cold blooded meaning whatever temperature it is they adapt to it so during winter they go into s state of hibernation.
Match the following DNA strand to its complementary strand of RNA
TTA - CAA - ACC - ATA
Question options:
AAU - GUU - UGG - UAU
AAT - GTT - TGG - TAT
AAU - CTT - TGG - TAT
ATG - CCG - AAT - TCG
Answers
Answer:
AAU GUU UGG UAU
Explanation:
In RNA thymine is no longer present and A matched with au
Which is not an established odorant-mediated response or capability of humans?
a. Pheromone-based sexual attraction mediated by the vomeronasal organ
b. Increased gastric motility in response to appetizing odors
c. Infant recognition of, and increased suckling in response to, their mother's odor
d. A mother's ability to recognize her own baby based upon odor
e. Gagging or vomiting in response to a particularly noxious odor
Answers
The one that is not an established odorant-mediated response or capability of humans is Option A, pheromone-based sexual attraction mediated by the vomeronasal organ.
Humans do not possess a functional vomeronasal organ, which is responsible for detecting pheromones in many other animals. While there is ongoing debate about the presence and function of a vestigial vomeronasal organ in humans, there is no conclusive evidence to support its role in pheromone detection and sexual attraction in humans.
The vomeronasal organ (VNO) is a specialized sensory organ found in many animals that is responsible for detecting and processing pheromones. Pheromones are chemical signals released by individuals of the same species to communicate and elicit specific behavioral responses, such as sexual attraction or territorial marking. Hence, the correct answer is Option A.
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How are the chemical senses different from the non-chemical senses?
O You must experience chemical stimulus in order for your senses to work.
O You must be careful that you don't burn your neurons with the ingested chemicals.
O Chemical senses are less strong than the non-chemical senses.
O They require chemical receptors in addition to neurons for sending messages to your brain.
Answers
In order to communicate with your brain, they need chemical receptors in addition to neurons.
THE CHEMICAL SENSES Because both taste (gustation) and smell (olfaction) include sensory receptors that react to molecules in the food we consume or the air we breathe, they are referred to be chemical senses.
Taste, also known as gustation (for dissolved chemicals that reveal the palatability of food), and smell, sometimes known as olfaction, are the two most common categories of the external chemical senses (for airborne chemicals that inform about events at a distance). Humans' sense of taste is restricted to the mouth, particularly the tongue.
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Which statement describes the movement of carbon dioxide in the carbon cycle?
A.
The gas enters the hydrosphere as sugar dissolves in water.
B.
The gas enters the cryosphere as ice sheets melt.
C.
The gas leaves the biosphere as animals breathe in air.
D.
The gas leaves the atmosphere as plants use it to make sugar.
Answers
The gas leaves the atmosphere as plants use it to make sugar.
Carbon dioxide is used from the atmosphere and then converted into sugar by plants by the process of photosynthesis.What is carbon cycle?The carbon cycle is way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.Plants use carbon atoms in the form of carbon dioxide that is then converted into sugar.Hence, D option is correct.
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Design a bark-feeding mammal that burrows its way from tree to tree.
What adaptions would you give it to protect it from predators ?
Answers
Answer:
Sharp teeth and sharp claws so it can shred away the bark, and help for attacks
Good hearing and ears to be aware of noise in their surroundings
Can someone please help?
Answers
Answer:
I think it is it's amino acid sequence
Explanation:
Hope this helps!
Who used xrays to take pictures of DNA
Answers
Rosalind Franklin used X-ray diffraction to determine the structure of DNA molecules. One of her best X-ray pictures is numbered Photo 51 and is shown in Fig.
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long protein strands that are transported to the site of a wound to form a web that traps blood cells to form a clot are called ________.
Answers
Long protein strands that are transported to the site of a wound to form a web that traps blood cells and forms a clot are called fibrin.
Fibrin is an essential component of the blood clotting process, helping to prevent excessive bleeding and promote wound healing.
When a blood vessel is damaged, a series of events known as the coagulation cascade is initiated. This cascade involves a complex sequence of reactions that ultimately lead to the formation of a blood clot. Fibrinogen, a soluble protein present in the blood, is converted into fibrin through the action of the enzyme thrombin.
Fibrin molecules then assemble into long, insoluble strands that form a mesh-like network at the site of the injury. Platelets and red blood cells get trapped within this fibrin mesh, forming a stable clot. The clot acts as a physical barrier, preventing further blood loss from the damaged blood vessel.
Over time, the clot undergoes remodeling and is eventually dissolved through a process called fibrinolysis, allowing for tissue repair and restoration of normal blood flow. The formation and subsequent dissolution of fibrin clots are tightly regulated processes that ensure appropriate clotting at the site of injury while maintaining overall blood flow throughout the body.
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Which statement about these cells is correct?
a.About 20 percent of the cells are dividing.
b. Most of the cells are undergoing meiosis.
c. Most of the cells will never undergo mitosis
d. About 80 percent of the cells are dividing.
Answers
About 80 percent of the cells are dividing because of the perfect structure of the cell.
What is cell division?Cell division is the process by which cells multiply that includes nuclear and cytoplasmic division. Meiosis and mitosis are their types.
So we can conclude that about 80 percent of the cells are dividing because of the perfect structure of the cell.
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Which of the following are abiotic factors? (Multiple Answers
Answers
Answer:
atmosphere,sunlight,wind water
Ron’s Apiary has a small farm in western Maryland where he raises bees that are uniquely bred for use in genetic research. Ron’s Apiary is the only firm that produces these bees and then sells them to researchers in the genetics field. Ron knows from past experience that the demand for his bees is given by the following demand curve: Q=600-10P where the quantity is thousands of bees and the price is per thousand. The cost of producing the bees is given by: TC=100+10Q. The farms surrounding Ron’s farm consist of apple orchards. Ron’s bees pollinate the apple blossoms in the surrounding farms each spring. Without the bees there would not be any apples in the fall. Note that bee pollination can be considered a public good, since the nearby farms cannot be excluded from the pollination done by the bees raised for research and pollination does not raise the cost of raising the bees for research. The surrounding farmers demand for bees is given by Q=400-10P.
a. 5 points-What quantity of bees will Ron produce and what will be the price of the bees? N
b. 10 points-What quantity of bees and price would maximize social welfare? N
Answers
To determine the quantity of bees that Ron will produce and the price of the bees, we need to find the equilibrium point where the demand and supply curves intersect. The demand curve for Ron's bees is Q=600-10P, while the cost of producing the bees is given by TC=100+10Q.
To find the equilibrium quantity, we set the quantity demanded equal to the quantity supplied: 600-10P = 100+10Q
Simplifying the equation, we get: 500 = 10P - 10Q
Dividing by 10, we have: 50 = P - Q
Next, we can use the surrounding farmers' demand curve, Q=400-10P, to substitute for Q in the equation:
50 = P - (400-10P)
Simplifying further: 50 = P - 400 + 10P
Combining like terms: 60 = 11P
Dividing by 11, we get: P ≈ 5.45
So, the price of the bees will be approximately $5.45 per thousand bees. To find the quantity of bees produced, we substitute the price back into the demand curve: Q = 600 - 10P
Q = 600 - 10(5.45)
Q ≈ 600 - 54.5
Q ≈ 545.5
Therefore, Ron will produce approximately 545.5 thousand bees. To maximize social welfare, we need to find the quantity of bees and the price that maximize the sum of consumer surplus (CS) and producer surplus (PS). Consumer surplus is the difference between the price consumers are willing to pay and the price they actually pay, while producer surplus is the difference between the price producers receive and the cost of production. To find the maximum social welfare, we need to find the equilibrium point that maximizes the sum of CS and PS. In this case, CS and PS can be represented as areas on a graph. It's important to note that the answer to part (b) will require graphing and calculation, so it is not possible to provide an exact answer without the graph. However, the process described above will help in finding the quantity of bees and the price that maximize social welfare.
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How does antibacterial resistance relate to natural selection?
Answers
Answer: When bacteria are initially exposed to an antibiotic, those most susceptible to the antibiotic will die quickly, leaving any surviving bacteria to pass on their resistant features to succeeding generations.
Explanation: It's basically relating to the Survival of the Fittest and Antibiotics can easily overpower Bacteria.
Relate the surface area of a cell to the transport of materials.
Answers
If the size of a cell increases it will be more difficult (all other things being equal) for diffusion to transport materials out of the cell. Therefore, less of the cell's interior will be able to come in contact with the cell's surface. If less of it comes in contact, less of it can cross the cell membrane.
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what region of the abdominopelvic cavity lies between the two iliac regions?
Answers
The iliac region is the between two legs, the pelvic region, and the reproductive organs of the female. The region is called the iliac as the iliac arteries carry blood to this region. Both sides have an artery connection which is both the right and left of the human body.
The lower abdomen region which consists of kidneys, stomach, pancreas, spleen, gallbladder, and small intestine are located in are known as the organs of the lower abdomen cavity. Both the cavity which is the abdomen and the pelvic cavity referred the abdominopelvic cavity of the human body.
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if I have two unicellular organisms, will they have the same genetic code? yes or no
Answers
Answer:
I think yes
Explanation:
THIS IS DUE TOMORROW - Why is it important to reduce your ecological footprint? What services do ecosystems provide for us/future generations?
Answers
Answer:
The ecological footprint (EF) estimates the biologically productive land and sea area needed to provide the renewable resources that a population consumes and to absorb the wastes it generates—using prevailing technology and resource-management practices—rather than trying to determine how many people a given land area
Ecosystem services are the benefits that people obtain from ecosystems. Ecosystem services are indispensable to the wellbeing of all people, everywhere in the world. They include provisioning, regulating, and cultural services that directly affect people, and supporting services needed to maintain the other services.
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A group of organisms that can breed with one another and reproduce fertile offspring.
Species
Homeostasis
Community
Ecosystem
Answers
Answer:
Species
Explanation:
A biological species is a group of organisms that can reproduce with one another in nature and produce fertile offspring.
Name 6 functions of your skin
Answers
Answer:
The skin performs six primary functions which include, protection, absorption, excretion, secretion, regulation and sensation. The skin functions as our first line of defense against toxins, radiation and harmful pollutants.
After it is labeled, the diagram below will illustrate photosynthesis. Write each of the following terms on the correct numbered line. Then answer the questions that follow. Carbon dioxide Chlorophyll Light Glucose 1. 2. 3. Oxygen Water
Answers
Answer:
2
Explanation:
Carbon dioxide
The correct illustration of the photosynthesis is 1. Carbon dioxide, 2. Oxygen, 3. Glucose, and 4. Water.
What is the process of photosynthesis?Plants absorb water (H₂O) and carbon dioxide (CO₂) from the soil and atmosphere during photosynthesis.
Water is oxidized, which means it loses electrons, while carbon dioxide is reduced, which means it acquires electrons, inside the plant cell. Water is converted into oxygen and carbon dioxide into glucose in this process.
The four stages of photosynthesis required to proceed in a plant include light absorption, electron transfer, ATP production, and carbon fixation.
Therefore, the correct illustration of the photosynthesis is 1. Carbon dioxide, 2. Oxygen, 3. Glucose, and 4. Water.
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what is the missing word
cells ________ during development to perform different functions
Answers
Answer:
Differentiate
Explanation:
Answer:
differentiate or specialise