The conclusion that can be made about the two heavy metals is that:
The heavy metals have a synergistic relationship when combined; option CWhat are heavy metals?Heavy metals are metallic elements that has a relatively high density and are toxic or poisonous at low concentrations when they enter the body.
Some examples of heavy metals are mercury, arsenic, chromium, lead, cadmium, etc.
A common example of heavy metal poisoning is in lead poisoning of water.
Considering the effects of the presence of a heavy metal M or N in the drinking water of Town X, Y or Z.
Residents of Town X and Town have no issues with their drinking water despite the presence of the heavy metal M and N in their water respectively. However, residents of Town Z whose drinking water has M and N in their water have long-term kidney damage. This implies that M and N together, enhance their effects or have a synergistic relationship.
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Observations are what is based on?
A prairie nature reserve is home to a population of pheasants. This year, the population of pheasants has increased sharply, and scientists think the population has exceeded the carrying capacity. The reserve is also home to a small, scattered population of bison. Scientists think that the bison population is significantly below carrying capacity, although it has been increasing gradually from year to year.
Both the pheasant and bison populations of the nature reserve could be affected by a variety of limiting factors. Which limiting factor affects both populations about equally?
(A) competition within the population for food and water
(B) parasites that spread among species members
(C) a wildfire that spreads across the prairie grasses
(D) competition within the population for living space
(E) native predators that hunt and kill species members
The limiting factor which affects both populations about equally is competition within the population for living space and is therefore denoted as option D.
What is Competition?
This is defined as a type of rivalry between organisms or species for resources such as food, space etc in a particular area over a given period of time.
Since we were told that the the bison population is significantly below carrying capacity and the pheasant population has exceeded the carrying capacity in the same nature reserve then the competition for space affects both equally which is why increase in both has been effectively managed.
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What is meant by the term insulin resistance? cells in target tissues lose all ability to respond to insulin?
The term insulin resistance means a condition when the cells of liver, muscles, and fats do not respond to insulin thus by not in taking any glucose from the blood in our body.
The term insulin resistance often leads to the condition of type 2 diabetes where the cells resist the uptake of glucose in the blood thereby increasing the blood glucose levels in the body of an individual. This condition of increased blood glucose level is called hyperglycemia.
This is also connected with other ailments like high blood pressure, rise in cholesterol, obesity etc. it may also result in dehydration, confusion, and low energy in the body.
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what factors increase the rate of water evaporation
PLEASE HELP EVEN IF MY ANSWERS ARE RIGHT STILL TELL ME THEM PLEASE
What is the complementary DNA stand for a sequence?
Answer:
DNA consists of two complementary strands which runs anti parallely to each other and forms a helix like structure due to their twisting angle geometry[tex].[/tex]
Complementary strand means, if you are given the nitrogenous base sequence of any one strand, you can easily find the sequence of other strand by the simple rule of "A binds with T and C binds with G" i.e. purine binds with pyrimindines in other words.
which chemical can we only get from eating protein
Almost all rocks sink but a type of rock called pumice floats. Based on the reading, what would you say about the density of this floating rock compared to the density of water
Answer:
i would say that the rock's density is lower due to the rock having the ability to float, and if the rock was more dense it would have sinked.
Explanation:
well I pretty much just explained it in the answer
The law of supply and demand
is a simplification of economic patterns. What
other factors might affect the cost of copper?
Aside from the economics, copper is utilised to transfer energy and is found in almost everything electric. Because copper is frequently utilised for its quality and applications, its price may rise.
What is the significance of copper in the economy?Copper demand has always been a good predictor of economic health. It is a "workhorse metal" utilised in a variety of sectors and consumer uses, including plumbing and refrigeration, as well as smart phones and solar panels. Copper demand grows as companies expand, new homes are built, and vehicles are manufactured.
Taxation and government regulation, supplier market power, the availability of replacement goods, and economic cycles may all move or change the form of supply and demand curves.
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PLEASE HELP!!!!!! ASAP
Answer:
C
Explanation:
I guessed lollolololololol
_______is the density of nitrogen prepared from nitrogen compounds significantly different from that prepared from air.
0.07271) 0.0780722) is the density of nitrogen prepared from nitrogen compounds significantly different from that prepared from air.
What makes nitrogen different from air?In actuality, the composition of ambient air is around 78% nitrogen, 21% oxygen, and 1% other gases.
Because it is least reactive, nitrogen is more abundant in the air. It is produced by plants and surface soil bacteria, which then breaks it down into ammonium, nitrites, and nitrates before returning it to the environment as free nitrogen.
At all pressures and temperatures, oxygen is somewhat less dense than both air and nitrogen. We normally don't care which is lighter or heavier because they don't separate from one another.
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Which mode of inheritance results in both alleles being detected equally in the heterozygous phenotype?
A codominant pattern of inheritance occurs when both alleles of a heterozygote are equally expressed in the phenotype.
What is heterozygous?Heterozygous is the term used to describe the existence of two distinct alleles at a specific gene locus. One normal allele, one mutant allele, or two separate mutant alleles can all be present in a heterozygous genotype.
Inheritance that is codominant is what?In codominant inheritance, a gene expresses in two distinct forms (alleles), each of which produces a slightly different protein. The characteristics of the genetic condition are influenced by both alleles, which also affect the genetic trait. Humans' MN blood group system serves as an illustration of codominance, as do speckled poultry, which express alleles for both black and white plumage, and roan cattle, which express alleles for both red and white hair.
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why can carbon atoms can form chains of unlimited lengths?
Answer:
Carbon has the ability to form very strong covalent bonds with its atoms. This property of self-linking with atoms of the same element is termed as catenation.
Catenation is favored by atoms where atom to atom covalent bond is quite strong. In carbon, C-C bond energy is very high (347.3 kJ mol-1) causing catenation. Further, the carbon atom due to its tetravalency, can be bonded to two, three or four carbon atoms by forming single and multiple bonds. Therefore, chains of carbon atoms may be linear, branched or cyclic. Hence, it form long chains of its own atom. Another factor that allows this ability is the very convenient covalent radius of 111 pm.
To date, palytoxin and maitotoxin have been recognized as the longest carbon chain compounds in nature, except for biopolymers such as nucleic acids, proteins, and polysaccharides.
A student what to discover how light affects planet growth. What is the independent (manipulated) variable?
The size of the container
The color of light the plant receives
The amount of water the plant receives
How tall the plant grows
Mucosal cells make up the mucosa, which lines the lumen. Mucosal cells are in direct contact with food and harsh digestive secretions. How long do the mucosal cells live?.
Mucosal cells make up the mucosa, which lines the lumen. Mucosal cells are in direct contact with food and harsh digestive secretions. The mucosal cells live for two to five days.
The mucosal cells are present in the epithelial lining of many of the cavities and organs of the body. The main function associated with mucosal cells is the secretion of mucus.
The mucosal cells of the lumen secrete mucosa which acts as a lubricant for the food in the lumen and also kills bacteria. As mucosal cells of the lumen have to survive harsh conditions such as acidic pH, digestive secretions etc, hence these cells live for only two to five days. New mucosal cells are made continuously and the damaged ones are removed from the body.
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How many haploid sets of chromosomes are present in a diploid individual cell with a chromosome number of 32? 8 32 16 2 1
The correct option is (c) 16
There are 16 pair of chromosomes present in diploid individual cell with a chromosome number of 32.
This is due to the fact that each of our chromosomes is paired up, with one chromosome from each pair coming from each biological parent. Every human cell in the body has 23 pairs of these chromosomes, making our diploid number 46 and our 'haploid' number 23. 22 of the 23 pairs are considered to be autosomes. The 'X' and 'Y' chromosomes, which make up the 23rd pair, are responsible for sexual differentiation. This pair of chromosomes is in charge of "sex-linked" diseases that run in some families, such the blood disorder haemophilia, which primarily affects men. Males have an X and Y chromosome, whereas females have a pair of X chromosomes.Learn more about the chromosomes with the help of the given link:
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which method carries the highest risk of failure ?
The first step in the production of seeds is pollination. Researchers studying pollination failure have demonstrated that it can happen at all stages and levels of the dispersal process.
Why does this method carry the highest risk of failure?If pollen is transferred to a stigma too little, too much, too late, too mixed in composition, or too poorly in quality, there is an increased risk of pollination failure. It is connected to plants when they are overly specialized or selective as well as pollinators when they are too few or inconsistent. It is linked to communities that are too fragmented, genetically deficient, or undergoing rapid change, as well as populations that are too small, too few, or genetically uniform. The successful conservation and recovery of rare plants, the maintenance of crop yields, and the sustainable use of resources from wild plants, such as forest lumber, can all be aided by an understanding of the causes of pollination failure in plants.To learn more about pollination visit:
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What conclusions can you draw about species richness and species evenness between the two areas
What are drawn as arrows that are used to show both size and direction
Answer:
a vector
An arrow has both a magnitude (how long it is) and a direction (the direction in which it points). The starting point of a vector is known as the tail and the end point is known as the head.
All epithelia have two surfaces, an apical surface and a basal surface, that differ in both structure and function. This property is called polarity. True or false?.
All epithelia have two surfaces, an apical surface, and a basal surface, that differ in both structure and function. This property is called polarity.
Yes it is true. Tissues are the group of cells present in the body which are present very near to each other and they are organized in different shapes and forms of different sizes to perform different functions and to make up the organ system of the body and the tissues can be specific in their function or one tissue can perform many functions as well and there are mainly 4 types of tissues.
Which are epithelial ,connective, muscle, and nervous tissue and epithelial cells among them are the ones to be present both inside and outside of the body and they mainly function to protect the skin layering and also to line up the skin blood vessels, urinary tract and other organs so they also work for the contraction and relaxation of the tissues as they are lined up in urethra , uterus and urinary tract and epithelial cells have two surfaces the upper one is called as the apical surface and the lower one is called as the basal surface and as they are fond in different position and involved in different function this phenomenan is called as polarity so yes this is true.
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A pear tree was saved from the site, rehabilitated and eventually returned to the site of the memorial. What is the tree called?.
The Callery pear tree is called the "Survivor Tree".
After the attacks of 9/11, this Callery pear tree earned the name "Survivor Tree." While removing debris from the World Trade Centre site, workers discovered the severely charred and disfigured tree. It had been injured, yet it still exhibited signs of life. The New York City Department of Parks and Recreation received the tree after it had been taken down from the location, which aided in its recovery and rehabilitation.In 2010, the Survivor Tree made its way back to the Memorial Plaza and rooted itself in the ground close to the towers' footprints. As it grew, cables helped it stay upright. The fresh, smooth, leafy branches that have tenaciously sprouted now stand in stark contrast to the tree's gnarled trunk and stubby limbs. It serves as a tangible representation of perseverance.So, the correct answer is that the Callery pear tree is called the "Survivor Tree".
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Read the scenario.
Scientists are studying compounds in a newly discovered rain forest plant.
The plant produces an unusual substance that local people say acts as an anesthetic.
What color change should the scientists look for when testing for carbohydrates?
brown to dark blue
purple to blue
dark blue to brown
blue to purple
In order to understand what the newly discovered substance is made up of, scientists can perform tests like the Iodine test.
The correct answer will be, if it is made up of carbohydrates, then the iodine color will change from brown to dark blue or blue-black.
Starch is one type of carbohydrate that can be detected using iodine. In the presence of starch, iodine turns from brown to a more blue-black tint. The response is somewhat inaccurate because other carbs are assessed in different ways, but starch, one type of carbohydrate, is the one that comes closest to the proper response.Benedict's solution is another specialized reagent that is commonly used to check for simple carbohydrates like glucose. Benedict's solution is blue, but if there are any simple carbs, it will turn green or yellow if there are few, and red if there are many.So, the iodine color changes from brown to dark blue.
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What is one other possible xplanation for the observed difference between the percentages of patients in the antibiotic?
Since the observed percentages are very close together as less than 3 percent apart, it is just due to random chance.
The observed discrepancy between the percentages of the two groups might just be a matter of chance. The medical word for inflammation (swelling) of the sinus and nasal lining is rhinosinusitis, or more often, sinusitis.
The face bones' hollow spaces that connect to the nasal passages are known as the sinuses. Like the inside of the nose, the sinuses are lined by mucous membranes. There were no differences in the compared treatments for illness complications, disease recurrence, or study dropouts due to adverse events.
In conclusion, there is a slight therapeutic advantage to using antibiotics for acute sinusitis compared to a placebo, but the risk of side effects also increases.
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Question correction:
Your findings so far might suggest a real difference in effectiveness of antibiotic and placebo treatments for improving symptoms of sinusitis. However, this is not the only possible conclusion that can be drawn based on your findings so far. What is one other possible explanation for the observed difference between the percentages of patients in the antibiotic and placebo treatment groups that experience improvement in symptoms of sinusitis?
The part of the brain that "sounds the alarm" when stress is present is called the:____.
The part of the brain that "sounds the alarm" when stress is present is called the reticular activating system.
Define Reticular Activating System.The reticular activating system (RAS) is a network of neurons in the brain stem that mediates behavior and activates awake, desynchronized cortical EEG patterns. It also projects posteriorly to the thalamus and directly to the cortex.
How Reticular Activating System Functions?The essential function of the reticular activating system is the control of arousal and sleep–wake transitions. The thalami's intralaminar nuclei, which diffusely transmit to the cerebral cortex, receive input from the ascending reticular activating system. The reticular activating system's ascending projections improve the cortex's attentive state and enable the conscious perception of sensory stimuli.
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All organic compounds contain the element _____
A. Nitrogen
B. Oxygen
C. Carbon
D. Phosphorus
Answer:
C. Carbon
Explanation:
Carbon is the only element that is found in all the organic compounds.
The pathogenic fungus Fusicoccum amygdali secretes a toxin called fusicoccin that activates the plasma membrane proton pumps of plant cell membranes. Suggest how F. amygdali infection of leaves could lead to severe dehydration in plants.
The infection of leaves by the pathogenic fungus Fusicoccum amygdali would lead to severe dehydration in plants through causing uncontrolled opening of stomata.
What is dehydration?Dehydration is the condition that arises following excessive loss of water from a living cell which may be severe when not controlled or in disease conditions.
The pathogenic fungus, Fusicoccum amygdali, is able to cause dehydration in plants through attacking the leaves of the plant.
They are able to cause infection through the release of toxins called fusicoccin.
The fusicoccin is able to activate plasma membrane proton pumps of plant cell membranes of the stomata of the plant leaves.
This in turn leads to uncontrolled loss of water resulting to dehydration.
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Brendan made a chart to categorize the characteristics of animals.
An empty 2-column table titled Characteristics of Animals. Column 1 is labeled Always. Column 2 is labeled Sometimes.
Which phrase should be written in the column titled "Sometimes”?
The phrase that should be written in the column titled 'sometimes' is 'irregular occurrences'.
What are the characteristics of animals?The characteristics of animals are those features that area exhibited by animals which distinguishes them from other living things.
Some of the characteristics of animals include the following:
Multicellularity,Eukaryotic Cell Structure.Specialized Tissues,Sexual Reproduction,A Blastula Stage of Development,Motility (The Ability to Move),Heterotrophy (The Ability to Ingest Food), andAdvanced Nervous Systems.Not all these features are seen in all animals that is the reason why there should be a column for always and sometimes which can be replaced with the phrase 'irregular occurrences'.
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Using the following words, describe in one 5- sentence paragraph what happens in the water cycle: precipitation, evaporation, condensation, transpiration, runoff, infiltration, solid, liquid, gas.
Water cycle is water circulation on Earth. It goes from liquid, to gas, to solid, to liquid state again. As water moves thourgh the cycle, it suffers evaporation, precipitation, infiltration, and runsoff.
What is the water cycle?
The water cycle is the water circulation process on the Earth, passing through its different states, and impulsed by solar energy. The cycle repeats continuously.
As water moves along the cycle, it suffers different transformations (gas ⇔ liquid ⇔ solid). It can suffer,
- evaporation
- condensation
- precipitation
- collection
Evaporation
Water evaporates from different water mass surfaces, turning from liquid to gas state. These gases move forward to the atmosphere.
Condensation
Once in the atmosphere, water in its gas state reaches heights of low temperature, where it condenses and returns to its liquid state. Drops of water accumulate in clouds.
Precipitation
When water drops are too big, they break equilibrium and precipitate creating rain. Depending on the temperature at which they are exposed, precipitations might be either drop (liquid), snow, or hail (solid).
Collection
It refers to the destiny of water on Earth. Once it gets to the surface, water can end
in water bodies like rivers, oceans, and streams.
taken and consumed by living beings.
infiltrating on the ground where it accumulates (underground water). It depends on the ground permeability and plant cover.
running off, which occurs when the ground is too eroded and compact, and water can not infiltrate. So it moves over the surface until it reaches a lower plane area. It might end up evaporating, being consumed, or in a water body.
And so the cycle begins again.
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What is the fundamental difference between the feedback mechanism involving oxytocin and birth and the mechanism involving insulin and blood sugar?
According to the given statement:
Insulin's activity is intended to function as a negative feedback system.There is no typical homeostatic range for birthing.Insulin's purpose in this is to generate facilitated diffusion pathways in body cell plasma membranes, allowing glucose to enter the cell.During labor, the level of oxytocin continues to rise until the end point is achieved.Briefing:Insulin's activity is intended to function as a negative feedback mechanism. The objective is to maintain blood sugar levels within normal homeostatic limits. Insulin's purpose in this situation is to open wider developmental channels in body cell plasma membranes, allowing glucose to enter the cell. As a result, blood sugar levels fall. Other actions will be taken as needed to raise blood sugar levels. There is no typical homeostatic range for birthing. There is a climactic endpoint, which is birth. During labor, the level of oxytocin continues to rise until the end point is achieved.
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Evaluate the advantages of the current naming system compared to the earlier system
Answer:
This naming is essential for the classification and organization of organisms which makes the study of an organism easier and understandable. It gives the precision and clarity for the naming of an organism which prevents confusion. Scientific names help the reader to learn something about the organism.