Answer:
Osmosis: Water diffuses through a semipermeable membrane during osmosis, a particular type of diffusion.
Explanation:
Water easily travels across a membrane in a potential gradient from high to low. Osmosis, one of the most important natural processes, is a natural occurrence. A weaker salt solution will often migrate to a stronger salt solution throughout this process. Reverse osmosis is capable of eliminating up to 99%+ of the dissolved salts (ions), particles, colloids, organics, bacteria, and pyrogens from the feed water, yet it shouldn't be relied upon to entirely remove bacteria and viruses. A RO membrane rejects contaminants based on their size and charge. A correctly operating RO system will likely reject any pollutant with a molecular weight more than 200 (for contrast, a water molecule has a molecular weight of 2).
A few calculations are employed for both design considerations and performance evaluation of a RO system. Instrumentation in a RO system shows quality, flow, pressure, and occasionally other information like temperature or operating hours. The following operational metrics are necessary in order to appropriately assess the performance of a RO system, at the very least:
Feeding forcePermeate forceIncrease your pressure.Charge conductivityTransparent conductivitySupply flowfluid permeationTemperatureREJECTION OF SALT %
You may determine from this equation how well the RO membranes remove impurities. It provides information on the system as a whole rather than the performance of each individual membrane. 95% to 99% of most feed water impurities will be rejected by a RO system that is well-designed and has RO membranes that are operating effectively (that are of a certain size and charge). The following equation can be used to calculate how well the RO membranes are eliminating contaminants:
Conductivity of Feed Water - Conductivity of Permeate Water 100; Salt Rejection%
Feed Conductivity
The system works better the higher the salt rejection. A poor rejection of salt may indicate that the membranes need to be cleaned or replaced.
PASSAGE SALT
This is the percentage of salts flowing through the RO system in terms of quantity. The method works better the lower the salt channel is. A high salt passage could indicate that the membranes need to be cleaned or replaced.
(1 minus Salt Rejection%) = Salt Passage
RECOVERY
Water that is being "recovered" as good permeate water is measured by percent recovery. The quantity of water that is not drained as concentrate but is instead collected as permeate or product water is another way to conceive of percent recovery. The higher the recovery percentage, the more permeate water is being saved and less water is being sent to the drain as concentrate.
There are many industrial applications that call for demineralized or deionized water, and reverse osmosis is a reliable and efficient technology to generate water that is suited for these uses. The quality of the RO permeate can be improved through additional post-treatment after the RO system, such as mixed bed deionization, making it appropriate for the most demanding applications. An RO system's proper pretreatment and monitoring are essential for avoiding expensive repairs and unforeseen maintenance. Your RO system should deliver high purity water for many years if it is designed properly, has a maintenance schedule, and is supported by knowledgeable service personnel.
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An ameba moves and feeds by forming tempory bulges of the cell membrane called the ________.
A:
false arm
B:
cilia
C:
pseudopods
D:
sarcodines
Answer:
C. Pseudopods
Explanation:
What type of solution is my gummy bear in ? Isotonic, hypertonic , or hypotonic ?
Prediction :
Claim :
Evidence :
Reasoning (Justification of claim):
Quantitative:
Qualitative:
Answer:
Hypertonic is your answer thanks me later✌️
Which of the following is NOT a prokaryote?
A. Fungi
B. E. Coli
C. Archaea
Answer:
Fungi
Explanation:
it is a eukaryote
Which is not a prokaryote?
In the given options, Saccharomyces is not a prokaryote as it is a fungus and hence a eukaryote. They have a well-defined nucleus and membrane-bound nucleus.
the incidence of down syndrome, also known as trisomy 21, increases with increasing maternal age. which of the following errors most likely produces this condition?
a. Nondisjunction during meiosis II in either the male and female gamete
b. Nondisjunction during either meiosis I or II in the female gamete
c. Nondisjunction during either meiosis I or II in the male gamete
d. Nondisjunction during meiosis I in either the male and female gamete
Option B. Nondisjunction during either meiosis I or II in the female gamete, most likely produces this condition.
Nondisjunction throughout both meiosis I and II can produce a gamete a good way to result in a trisomic zygote. hazard elements for maternal nondisjunction of chromosome 21 are increased maternal age and altered recombination. Since the occurrence of Down syndrome will increase with maternal age, it's far possible that this error takes place in the female gamete.
The end result of a nondisjunction of chromosome 21 in a zygote that has forty-six, XY might be cells with 47 chromosomes. It happens due to an additional chromosome (chromosome 21) that originated in either the egg or the sperm. Throughout fertilization, 3 instead of two are present. A human born with Down syndrome inherits all or a part of a further replica of Chromosome 21. S
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Which statement best describes how radiation causes mutations?(1 point) Responses Radiation triggers DNA replication, and the cell produces two identical DNA molecules. Radiation triggers DNA replication, and the cell produces two identical DNA molecules. Radiation breaks down DNA bonds, and the bonds remain broken. Radiation breaks down DNA bonds, and the bonds remain broken. Radiation breaks down DNA bonds, and the cell repairs the bonds incorrectly. Radiation breaks down DNA bonds, and the cell repairs the bonds incorrectly. Radiation triggers DNA replication and splits the complementary base pairs.
The statement that describes how radiation causes mutation is as follows: Radiation breaks down DNA bonds, and the cell repairs the bonds incorrectly (option C).
What is mutation?Mutation is any heritable change of the base-pair sequence of genetic material i.e. the alteration in the DNA sequence of a genetic material caused by errors during DNA replication, mutagens etc.
Radiation is one of the major causes of mutation. Ionizing radiation directly affects DNA structure by inducing DNA breaks or breaking of DNA bonds.
The DNA structure is directly responsible for the function as a storage molecule. Hence, any alteration in the DNA structure will damage it.
However, the cell attempts to repair it but does so incorrectly resulting in the production of a mutated DNA.
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Will Give Brainiest to the first to answer.
Explain what caused the dark-colored peppered moths to become more numerous than the light-colored peppered moths when their environment became covered in soot.
Answer:
because they were harder to see for predetors
Explanation:
the soot made the dark moths camouflage better, so they were hidden while whites were not so the whites got eaten with out reproducing while the blacks reproduced and birthed more blacks no I'm not racist lol ez to type w blacks ND whites tho
John, an 84-year-old male, tripped while on his morning walk. He stated he was
thinking about something else when he inadvertently tripped over the sidewalk curb
and fell to his knees. An X-ray indicated a fracture of his right patella. With the
patient under general anesthesia, the area was opened and extensively irrigated. The
left aspect of the patella was severely fragmented, and a portion of the patella was
subsequently removed. The remaining patella fragments were wired. The surrounding
tissue was repaired, thoroughly irrigated, and closed in the usual manner.
A) 27524-RT, S82.001A, W10.1XXA
B) 27524-RT, S82.099A, W19.XXXA
C) 27520-RT, S82.001A, W10.1XXA
D) 27524RT, S82.001A, W19.XXXA
27524-RT is an open treatment for right patella fractures. A region containing the placement of internal fixation is opened. The remaining patella was a fragment wired with the modifier -RT to indicate that the right S82.001A was an unspecified closed fracture of the patella.
There was no indication that the fracture was open and the bone was sticking out of the skin. If you do not specify whether it is open or closed, the fracture is reported as closed. W10.1XXA reports a fall or fall onto a sidewalk or curb. Option A.
Depending on your age and medical condition it takes about 3-6 months to recover from a fractured patella, but very serious patella injuries may take longer. you may be advised to avoid kneeling or other activities that put a strain on your knee joints for a while. Implant removal may be necessary as wires may protrude from under the skin. Implants should be removed within one year after surgery.
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Which option describes a step in designing an experimental investigation?
O A. Identifying the variables that will be controlled for all experimental groups B. Writing a procedure that prevents other scientists from repeating the results C. Making sure that the hypothesis will be supported and not refuted O D. Collecting each piece of data in a different way so that there is more variety
Answer:
a
Explanation:
because i studied like tht
Answer:
A. identifying the variables that will be controlled for all experimental groups
Explanation:
it is ;)
how are speciation and niches interconnected concepts?
Darwin postulated that competition within a niche was the driving force for diversification. In other words, if you can fill a new niche, your odds of successfully reproducing go up. He called it the "principle of divergence" and thought it was one of his most important epiphanies.
Contemporary biologists, on the other hand, would often contend that geographic isolation of a population is the most probable reason for speciation. Due to different niches being present in various places, two populations that were once connected are now isolated from one another. However, it is generally accepted that isolation rather than niche changes contributed more to the beginning of speciation.
Thus, isolation along with entirely untapped niches often accounts for the broad speciation seen in adaptive radiations.
Speciation? What do you mean by that?The process of speciation is how populations become different species. Cladogenesis, the separation of lineages, was first described by the scientist Orator F. Cook in 1906. Cladogenesis is in contrast to anagenesis, which relates to phyletic evolution within lineages.
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Prey animals are...
A. mutualistic.
B. carnivores.
C. captured and eaten.
Answer:
Explanation:
answer C. Captured and Eaten
Reason: B. Carnivores are meat and hunt for prey and A: are things that help each other out
What happens to the concentration of enzymes over the course of a chemical
reaction?
OA. It increases gradually.
OB. It decreases gradually.
C. It remains constant.
D. It increases to a maximum and then decreases again.
Answer:
Explanation:
CORRECT ANSWER: It remains constant.
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Describe the subunits and structures of the three types of cytoskeletal fibers and give at least one function of each.
Subunits and structures of the three types of cytoskeletal fibers are microfilaments, microtubules, and intermediate filaments.
Microfilaments help to create the forces used in cellular contraction and basic cell movements. They are also involved in cellular movement that includes contraction and cytokinesis .
Microtubules are involved in many functions that include assembly of mitotic spindle, in dividing cells, or axon extension inside neurons. They are also responsible for determining shape of the cell .
Intermediate filaments are involved in structural role by providing mechanical strength to cells and tissues. They are basically involved in the movement of the cell and generally found in hair , scales and finger nails .
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Label the letters below with the cell organelle.
Question 5 options:
nucleus
mitochondria
cell membrane
Golgi apparatus
1. B
2. I
3. E
4. H
Answer:
1. B is the nucleus
2. I is the cell membrane
3. E is the Golgi apparatus
4. H is the mitochondria
energy that is not connected to useful energy is usually given off as
Answer:::::::::::::: heat
Answer:
The energy not converted to sound energy (ability to do work) is usually given off as heat.
Explanation:
how different organ systems works in Harmony so that an organisms is able to survive
how do humans actions negatively impact water quality that can also impact drinking water
Answer:
They include sedimentation, pollution, climate change, deforestation, landscape changes, and urban growth.
Explanation:
The concentration of solutions is measured in a unit called moles (M). Now that you know this, use the picture to answer questions #1 - #5. The picture shows a red blood cell floating in a solution in a beaker. The picture also shows the concentrations of salt inside the red blood cell and the concentration of salt in the beaker.
Red blood cells (RBCs) would have a larger solute content outside of them than inside of them if they were detected in a concentrated salt solution.
Osmosis would cause the water to leak out of the cell, causing it to shrivel and stop functioning.
What occurs to red blood cells when they are exposed to a hypertonic solution?A red blood cell will swell up in a hypotonic solution and maybe rupture, but in a hypertonic solution it would shrink, making the cytoplasm thick and its contents concentrated, and may even perish.
Active transport involves the movement of chemicals from a low-concentration location to a high-concentration area in opposition to the concentration gradient. Being "active" means that this process uses energy (usually in the form of ATP).
Due to the diffusion mechanism, which asserts that water flows from a high concentration of water (RBC) to a low concentration of water when a cell is immersed in a concentrated solution (saline water).
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Which of the following is the best description of the music Mussorgsky wrote to accompany the Gnome?
A. Dark, choppy, dynamic contrasts
B. Long flowing phrases
Answer: A. Dark, choppy, dynamic contrasts
Which statement BEST describes an advantage that sexual reproduction has compared to asexual reproduction?
A There is a lower mutation rate in organisms that reproduce sexually.
B Less energy expenditure is required for sexual reproduction.
C There is more genetic variation of offspring as a result of sexual reproduction.
D Sexual reproduction takes place quickly and efficiently.
Cellulose is a material found in plants. It tested negative with Benedict’s solution. What can you conclude about the composition of cellulose?.
Answer: Pure cellulose would be expected to give a negative Benedict test result. Benedict's test reacts positively to monosaccharides and some disaccharides. These carbohydrates have one or two six-carbon rings. Cellulose is a polysaccharide and is too large and complex to form chemical reactions with Benedict's solution.
Explanation:
Philippines depends primarily on fossil fuels as a main source of energy in different mode of transportation. Since this source is a nonrenewable, it means there will be a time that it will perish. As a STEM student, what can you do or suggest to solve this problem?
Improve the research area in renewable sources of energy and find ways to utilize nonrenewable sources of energy optimally.
Philippines depends primarily on fossil fuels as a main source of energy in a different modes of transportation. One solution to reduce the consumption of nonrenewable sources of energy is using electrical vehicles. Since electrical vehicles require battery power which works on electricity.
Although electrical energy is a clean resource it can be created using both fossil fuels and renewable sources. By producing electricity through renewable sources of energy we can reduce the consumption of fossil fuels. It means there will be a time that it will perish.
Also using fossil fuels optimally can increase the availability time of the fuels on a big scale. Hence renewable sources are the alternative.
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How can plate tectonics contribute to the formation of gypsum deposits?
Gypsum deposits are formed as a result of plate tectonics. Tectonic movement can raise a shallow sea, which causes water to evaporate.
The correct option is D.
Where does gypsum come from?A fluxing agent, fertilizer, filler in the paper as well as textiles, cement are among the uses for gypsum. For usage as plaster of Paris and as construction materials in plaster, Keene's cement, board products, tiles, and blocks, around three-fourths of the entire production is calcined.
Give a brief definition of tectonic plates:An enormous, unevenly shaped slab of solid rock known as a tectonic plate—also known as a lithospheric plate—is typically made up of both oceanic and continental lithosphere. The Pacific and Antarctic Plates are two of the largest, however plate sizes can range from a few hundred through thousands of kilometers broad.
How did the term plate tectonics come about?According to the idea of plate tectonics, the mantle—the inner, rocky layer above the planet's core—is covered by enormous, solid rock slabs that are broken up into "plates" that move over the planet's crust.
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How might you model the relationship between a tomato plant and the hornworm catepillar?
The relationship between the tomato plant and hornworm caterpillar is of parasitism.
Parasitism is the mode of nutrition where an organism lives in close association with another organism. One organism is benefitted from this association and is called the parasite. And the person who gets harmed in this is called the host. The parasite may live on the outer surface of the host or even inside the body.
Hornworm caterpillar belongs to the family Sphingidae. The caterpillar has a horn-like tail and hence the name. The caterpillar specially lives on the tomato plant and feeds on its leaves. It can eat the leaves to such an extent that the plant may become completely defoliated. Hence they have a parasitic relation.
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what is the salt concentration of pure water
Which is a benefit that we get from
biodiversity?
A. over-hunted animals
B. production of oxygen by plants
C. deforestation of rainforests
D. air pollution
Answer:
B
Explanation:
Because it helps with good health and food nutition
–
2. The release of one phosphate group from ATP powers the reactions in the cell. Which phosphate is the one that is released from ATP?
NH₂
НО-Р-О-Р-О-Р-О-
ОН
О #4
#1
Assess It #16-Assess It
Biology Section 30VC/Quarter 1/Week of October 3/Wednesday, October 5/ Day 39
#2
ОН
# 3
# 2
N
ОН
+1
N-
N
ОН ОН
#4
D
When one phosphate group is removed by rupturing a phosphoanhydride bond during the process known as hydrolysis, energy is released and ATP is transformed into adenosine diphosphate.
When ATP degrades, which phosphate is released?Adenosine diphosphate (ADP), a version of the nucleotide with only two phosphates, is created when the outermost phosphate of ATP is removed to give energy. By adding a phosphate group to another molecule, ATP can change another molecule to power biological processes (a process called phosphorylation).
How does ATP release energy that living cells can utilize?The ATP molecule splits off one of its three phosphates when a cell has to expend energy to complete a task, resulting in the formation of ADP (Adenosine di-phosphate) + phosphate. It is now possible for the cell to use the energy that was previously bound to that phosphate molecule to carry out its operations.
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C6H1206 +6026H20 + 6C02 is an example of
A. synthesis
B. catabolism
C. anabolism
How might you model the relationship between a tomato plant and the hornworm catepillar?
Answer:
Ok, there are multiple ways of model this, one of the ways can be:
Knowing that a hornworm can strip a tomato plant of its foliage in about two days, we can count the number of hornworms (x, the input) and find the number of plants (y, the output) that they can eat in a day.
So, if a hornworm can eat a plant in two days, then in one day the worm can eat half a plant.
Then:
y = (0.5plants/worm)*x
This says:
The number of plants eaten in one day (y) is equal to half of the number of hornworms
OF course, there are a lot of other ways to model this, for example we can use the time as a variable x, and the number of plants as y.
Knowing that a worm eats a plant in two days:
y = (0.5 plants/day)*x
Now x is the number of days, and y is the number of plants that can be eaten by a single worm
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Is the coloring of the peppered moths an example of competition, differential reproductive success, or inherited variation? Explain why.
The coloring of the peppered moths is an example of the differential reproductive success that leads to an increase in the frequency of certain phenotypes in a population.
What is differential reproductive success?The term differential reproductive success makes reference to certain phenotypic features that may be considered adaptive in a given environment and therefore lead to higher reproductive fitness in the individuals that carry them.
The coloring of pepper moths indicates that they are more able to survive in environments having the same or similar colors in order to avoid the presence of predators that decrease their ability to survive and reproduce.
Therefore, we can conclude that differential reproductive success is the cause that explains why peppered moths have differential colors in industrial environments in order to avoid predators that decrease their ability to survive and reproduce in such environmental conditions.
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Which element is most common in carbohydrates?
O hydrogen
O carbon
O nitrogen
O oxygen
Hydrogen is most common in carbohydrates.
What are carbohydrates?Prior to any oxidation or reduction, the majority of carbohydrates have the empirical formula Cm(H2O)n. Carbohydrates are made up only of carbon, hydrogen, and oxygen atoms.The polyhydroxyaldehydes (aldoses) or polyhydroxyketones (ketoses) that makeup carbohydrates are made of C, H, and O.They are divided into three categories: monosaccharides, oligosaccharides, and polysaccharides.Most of the carbohydrates in humans are d isomers, unlike in animals. The most significant monosaccharide in humans, glucose is an aldohexose that cells use as fuel.In a 1:2:1 ratio, carbon, hydrogen, and oxygen make up the class of chemical molecules known as carbohydrates.To learn more about carbohydrates, refer
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