The most likely cause of the pollutant on Kendis if he keeps eating the predator fish is that Kendis will get sick because the pollutants will biomagnify (option C).
What is biomagnification?Biomagnification is the process, in an ecosystem, in which a higher concentration of a substance in an organism is obtained higher up the food chain.
According to this question, Kendis eats predator fish that feed on small oysters in a river ecosystem. However, the river has become polluted with moderate levels of heavy metals which are absorbed by the oysters.
This means that a continuous consumption of the predator fish will lead to a bioaccumulation of the heavy metals in Kendis causing the metal concentration to biomagnify.
Therefore, Kendis will likely get sick due to the bioaccumulation of the metal.
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Which is the only macromolecule
to contain Phosphorus atoms?
ATP molecule and ADP molecule are macromolecules containing phosphorus. They are very important in photosynthesis.
Please describe in detail how the sun causes the global wind patterns and the global current patterns.
Answer:
The sun's heat causes differential heating of the earth's surface and water bodies causing changing wind patterns.
Explanation:
The amount of sunlight received varies on various factors like
1. Insolation
2. Latitude
3. Altitude
Maximum sunlight is received at the equator while minimum sunlight is received at the poles.
Because of varying amounts of sunlight received, the surface and water bodies heat differently. This causes the wind over the surface to warm and cool differently.
The warm air being lighter in weight rises and is replaced by the heavier colder air. This leads to the formation of wind patterns.
The global winds are called trade winds.
Insulin is most directly related to which function?
movement
feeding
reproduction
homeostasis
Answer: (Option D) Insulin is most directly related to homeostasis.
Explanation: Homeostasis is the ability to maintain balance of body against a change in the environment. Insulin is a harmone which controls the glucose level in the blood. If the glucose level is high in the blood, the insulin gives message to the liver to absorb glucose from the blood and when glucose level is low, the liver released glucose into the blood. So insulin helps in the homeostasis of the body.
Explain how one gene can have many variations
A gene can have many variants, which produce physical differences in individuals.
What are many variants of genes?Genetic variations can arise from gene variants (also called mutations) or from a normal process in which genetic material is rearranged as a cell gets ready to divide (known as genetic recombination). Genetic variations that alter gene activity or protein function can introduce different traits in an organism these are differences between individuals inherited from parents, such as the color of your eyes, hair, and skin. Environmental variation - these are differences between individuals that are not inherited but caused by the environment that the organism lives in, including scars and tattoos. Genetic diversity has three different sources: mutation, recombination, and immigration of genes. Alleles are essential because they account for the differences in inherited characteristics from one individual to another. There are a total of 324 million known variants in human genomes
so we can conclude that physical differences in individuals are produced from the presence of many variants of gene.
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Which term includes all the activities required to keep an organism alive?
1. growth
2. excretion
3. metabolism
4.nutrition
What does the ecosystem receive from the outside world?
food, water, timber, air purification, soil formation and pollination
even in siblings whose parents are same, difference in characters can be observed. how? class 10 cbse
Describe what is meant by a structural protein and provide two examples in the human body
The structural proteins are those proteins that are known to provide support to body structures. The types of structural proteins found in the body are keratin, collagen, and elastin.
What are proteins?The protein is one of the major classes of food that has the major function of repairing worn out tissues of the body.
The various type of protein include the following:
Antibodies, Contractile proteins, Enzymes, Hormonal proteins, Structural proteins.Storage proteins, and transport proteins.
The types of structural proteins include the following:
Keratin: The structural protein that provides support for the hair and nails.
Collagen: The structural protein that provides support for the for the muscles and bones.
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What defines someone as a female?
A. The extra X chromosome in the DNA
B. The extra Y chromosome in the DNA
C. A person's opinion
D. The definition of a female varies depending on each person
Answer:
male produce xx and xy chromose
so, xx for male and xy for female
the correct option is ( b )
8. When enzymes are not at a stable pH or temperature what happens to their reaction rate?
An enzyme may get denatured and cease to function at extremely high temperatures. There is an ideal pH range for each enzyme. Beyond this range, pH variations will restrict enzyme activity.
How do enzymes function?The vital function of enzymes is to reduce its activation energy of a reaction, or the amount of power needed for the reaction to start. In order to facilitate the chemical bond-forming and friendship processes, enzyme bind to reactant molecules and keep them in place.
Which four major enzymes are there?Helicase, primase, Enzyme dna, and ligase are the four primary enzymes that aid in Replication of dna.
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most enzymes within cells are regulated by , during which the final product of a metabolic pathway competes with the substrate for the of an enzyme at the beginning of the pathway.
Most biological enzymes within cells are regulated by molecules such as activators and inhibitors during which the final product of a metabolic pathway competes with the substrate for the of an enzyme at the beginning of the pathway.
How are enzymes regulated by other molecules?Molecular substances such as the activators and the inhibitors help to regulate the activities of enzymatic activities which occurs within the cells of living organisms. These substances does this by increasing the activities of the metabolic activities or by slowing them down.
The molecular substances which helps to increase the activities of enzymes are known as the activators.The inhibitors are molecules which helps to decreases or lower the activities of enzymes.That being said, enzymes are biological substances which helps to speed up the rate if chemical or biochemical reactions in living organisms.
So therefore, enzymes which helps to catalyze reaction rate in living cells are usually, frequently and most of the time regulated by molecular substances such as activators and inhibitors.
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The m checkpoint is an example of a checkpoint that is internally controlled by the cell. What would be the potential consequence seen in daughter cells if the cell received a stop signal at this checkpoint but was able to continue to anaphase anyway?.
All the potential processes (meiosis and cytokinesis) are completed but the daughter cell could have missing or extra chromosomes if the cell received a stop signal at this checkpoint but was able to continue to anaphase anyway.
The cell checks whether each sister chromatid is appropriately connected to the spindle microtubules at the M checkpoint, also known as the spindle checkpoint. The cycle won't continue until every chromosome is firmly linked to at least two spindle fibers from opposite poles of the cell, as the separation of the sister chromatids during anaphase is an irreversible process. The cell's internal signaling pathways are activated or inactivated by a group of essential proteins by the m checkpoint, which is one of the internal and external stimuli that advances the cell cycle.
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What type of organism would live in deep sea vents, harness chemical energy spewing out of the vents to make sugar and be the beginning of the food web in deep sea ecosystems?.
Answer:
Symbiotic bacteria
Explanation:
Symbiotic bacteria live in the mussels' gills. Like the microbes living inside tubeworms, these bacteria use energy from chemicals in the vent fluids to produce sugars.
I need help to check the answer for those question that have writing underneath and I need help for those question with no pen writing underneath please
Answer:
first page is good 2 page might want to look over again or have a parent help you
Explanation:
Describe the motion you would feel as the wave advanced and carried you from the
trough to the crest
PLSSS HELP IF YOU TURLY KNOW THISS
Answer: I'm pretty sure it's sugars.
Explanation:
I think they use it as their food.
describe the role of a sperms acrosome in fertilisation
Answer: Enables the spermatozoa to penetrate the ova
Explanation: It contains certain digestive enzymes (hydrolytic enzymes) that helps the sperm to tunnel through the zona pellucida of the ova. It mediates the union and binding of the membrane with the egg.
PLEASE HELP NEED HELP IMMEDIATELY!!!!!!!
The plants and snails build larger carbon-based molecules from sugars the plant produce during photosynthesis. Option D.
What is photosynthesis?Photosynthesis is a biological process during which plants make use of inorganic substances to make carbohydrates. The inorganic molecules are water and carbon dioxide and the process is powered by solar radiation from the sun.
When plants make carbohydrates in the form of sugar, they utilize them to make other carbon-based molecules and grow as a result.
Snails are not able to synthesize sugar on their own. Instead, they feed on plants and make use of the sugar synthesized by plants to build carbon molecules. The molecules are then used to build cells and tissues in order for the snail to grow.
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describe the differences between age structure graphs of non growing, slowly growing and rapidly growing countries
The difference between the age structure graphs of non growing, slowly growing and rapidly growing countries is the birth rate and death rate of countries in each class.
What are age structure graphs ?There are so many countries in the world and each of the countries that we have in the world is unique in terms of the demography of the country. The demography has to do with the distribution of the people in a place according to age, sex and geographical location.
For the rapidly growing countries, we would notice that the age structure lies mostly towards the elderly. This implies that the birth rate and the death rate of the population ha achieved a sort of equilibrium.
For the slowing growing countries, the birth rate remains high but not so much as high as the non growing countries. This implies that the population of the countries are also within a manageable limit.
For the nongrowing countries, the birth rate is very much higher than the death rate thus there is a population explosion which puts pressure on the economy.
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Which of these processes are necessary for sexual reproduction to occur?
Group of answer choices
binary fission and budding
budding of one parent
the joining of male and female gametes
mitosis and binary fission
Answer:
Sexual reproduction requires two parents. Each parent contributes a gamete - a sex cell that has half of the normal DNA of a regular body cell. In males, the gametes are sperm and in females, the gametes are eggs.
When these two gamete combine during fertilization, the result is a zygote, which then continues to develop into an embryo.
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At which location would earthquakes be least likely to occur?
A
Locations like Antarctica would be least likely to experience an earthquake because they have less or no faulty lines.
Earthquakes are the tremors that occur inside the surface of the earth due to the slipping of tectonic plates against each other. The frequency of earthquake depends upon various factors like distance from the epicenter, the intensity of slippage of tectonic plates, etc.
Faulty lines are the fractures that are present between two rocks inside the Earth's surface. Since plain region do not have rocks that is the reason why faulty lines cannot be found there and hence earthquakes are also less, as their rapid movement causes earthquake.
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Air is a mixture of gases. We use a Fractional Distillation to separate out different substances from air.
Q:Write down the constituent substances of air?
The constituent substances of air are water vapor, carbon dioxide, oxygen, argon, and nitrogen.
What are the constituents of air?The major constituents of air are Nitrogen, Oxygen, and Carbon dioxide gas because they are present in large amounts. The composition of the atmosphere i.e. air mostly consists of nitrogen and oxygen and also contains small amounts of argon, carbon dioxide, and trace amounts of other gases like helium, neon, methane, krypton, and hydrogen. The major constituent of air is 78% nitrogen, 21% oxygen, and 1% of other gases, dust particles, impurities, and water vapor. Nitrogen, oxygen, water vapor, argon, and carbon dioxide take up about 99% of the composition of air.
So we can conclude that water vapor, carbon dioxide, oxygen, argon, and nitrogen are present in the composition of air.
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What is a keratin Protein?
( full explanation)
A keratin protein is a major type of fibrous protein found in diverse body tissues such as hair, and epidermis.
What is the epidermis?The epidermis is the most superficial layer of the dermis, which is ainly composed of keratin and forms an epithelial tissue that covers the body and functions as a barrier to protect it from environmental factors.
Moreover, keratin is a fibrous protein because it forms a longed polypeptide chain whose tertiary structure is similar to fiber. The fibrous proteins include the diverse type of polypeptides found in body tissues (i.e., collagen, elastin, keratin, fibrin).
The major three major classes of proteins depending on their structure include:Fibrous proteins Globular proteins Derived proteinsTherefore, we can conclude that keratin is a fibrous protein that forms a long polypeptide chain and it can be found in diverse tissues of the body such as, for example, the epidermis or hair.
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How many molecules of glucose could a plant make with 12 molecules of both CO2 and H2O?
A plant can make 2 molecules of glucose with 12 molecules of both CO2 and H2O.
6CO2 + 6H2O +light energy = C6H12O6 + 6O2.
According to the equation, one molecule of glucose is created when six molecules of carbon dioxide react with six molecules of water.
Therefore, 2 molecules of glucose would result from the combination of 12 molecules of carbon dioxide and 12 molecules of water.
What is glucose?With the molecular formula C6H12O6, glucose is a simple sugar. Monosaccharides are a subgroup of carbohydrates, and glucose is the most prevalent one. In order to create cellulose, the most prevalent carbohydrate in the world, glucose is primarily produced by plants and the majority of algae during photosynthesis from water and carbon dioxide with the help of solar energy.
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2. assuming that there were no time constraints on replication of the genome of a human cell, what would be the minimum number of origins that would be required? if replication had to be accomplished in an 8-hour s phase and replication forks moved at 50 nucleotides/second, what would be the minimum number of origins required to replicate the human genome? (the human genome has a total of 6.4x 109 nucleotides)
If replication had to be accomplished in an 8-hour s phase and replication forks moved at 50 nucleotides/second, The minimum number of 46 origins required to replicate the human genome.
A double-stranded DNA molecule is copied during replication to create two identical DNA molecules. One of the most fundamental processes that take place within a cell is DNA replication. Between the G1 phase and the G2 phase, the cell cycle's S phase (also known as the "synthesis phase") is when DNA replication occurs. Since precise genome duplication is essential for effective cell division, the S-phase mechanisms are strictly regulated and highly conserved.
Before the interphase, in the S phase of the cell cycle, DNA synthesis or replication takes place. By doing this, the cell's genetic material is copied before mitosis or meiosis, leaving enough DNA for cell division.
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Over the next several days, Sandy, Matt, and Jim debated the possibility of an embryonic stem cell treatment. The Allisons were conflicted about this decision because they were devout Christians who strongly opposed abortion, and they had heard that embryonic stem cells came from aborted fetuses.
Sandy brought this issue up with Dr. Gupta, the head investigator for the experimental stem cell study.
“Doctor, we are excited about the possibility of a treatment that may enable Jim to walk again. However, we do not want to harm other lives in the process of curing our son. Will this treatment result in the death of innocent lives?” Sandy asked Dr. Gupta.
1. Why is there controversy surrounding the therapeutic use of embryonic stem cells?
2. What embryos are used as the source for embryonic stem cells? What would happen to these embryos if they were not used in such treatments?
3. Taking into account the information you provided for the last question, how would you answer Sandy’s question to Dr. Gupta?
1) The controversy about stem cells is the fact that life is destroyed in order to obtain it.
2) The early-stage embryos are used as the source for embryonic stem cells. If they are not used for stem cells, they would develop to become babies.
3) The use of the stem cells must result in the death of innocent lives.
What is stem cell?The term stem cell has to do with the kind of cells that could be used in the treatment of certain conditions that require the regeneration of cells. These are those kinds of cells that would lead to a possible cure for some very serious diseases such as the sickle cell anemia and damaged joints and spinal injuries.
There have been a lot of controversies that surround the stem cells because of the fact that it involves obtaining the stem cells from early-stage embryos and these can only be obtained during the cause of abortion. The early-stage embryos are destroyed after the stem cells are harvested so they never make it to the world.
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FAST - Ben wants to model how the motion of particles changes with temperature. He
considers water in an iron pot. Ben draws a model to show how the water
particles and iron particles move at room temperature. Then, he draws a second
model to show how the water particles and iron particles move as the pot of
water is heated. How should Ben’s second model differ from the first?
A. The water particles should vibrate faster, and the iron particles should not
move.
B. Both the water particles and the iron particles should slide past each other
faster.
C. The water particles should slide past each other faster, and the iron
particles should vibrate faster.
D. The water particles should move freely in all directions, and the iron
particles should slide past each other faster.
When we begin to heat the pot and the water, the water particles should slide past each other faster, and the iron particles should vibrate faster. Option C
What is the temperature?The term temperature refers to the degree of the hotness or the coldness of an object. Much more, the temperature of an object has to do with the measure of the average kinetic energy of the molecules of the body..
Thus, when we begin to heat the water and the iron pot, we know that the kinetic energy of the molecules of the water and the both would increase. This is due to the acquisition of energy in the form of the heat applied.
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In organisms that use photosystem ii and i during photosynthesis, what would be the most likely outcome of a mutation that prevented noncyclic photophosphorylation?.
Increased NADP+ levels would be the most likely outcome of a mutation that prevented noncyclic photophosphorylation in organisms that use photosystems ii and i during photosynthesis.
NADP+ levels are somehow raised while preventing noncyclic photophosphorylation due to Mutations that are frequently light-sensitive during photosynthesis. There are other mutants that have been chosen for their higher resistance to photosynthesis-inhibiting herbicides or to plastid translation inhibitors. most pleiotropic mutations in the photosynthetic apparatus. The remaining subunits of a complex are generated when one subunit is missing, but they are improperly put together and quickly deteriorate, affecting all of the complex's components.
This feature makes it more difficult to pinpoint the underlying lesion in a mutant, but it also highlights very active proteolytic surveillance. Although at a late stage, this proteolytic system may work in a posttranslational process to control the stoichiometric accumulation of the subunits of each complex.
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Biogeochemical cycles on earth serve a variety of different purposes. what do the biogeochemical cycles have in common? a. they all serve the same function in sustaining life on earth. b. they all include only nonliving components of an ecosystem. c. they are all essential for sustaining life on earth. d. they all include only living components of an ecosystem. please select the best answer from the choices provided a b c d
The thing that all biogeochemical cycles have in common are that c. they are all essential for sustaining life on earth.
In the field of ecology, a biogeochemical cycle can be described as a process by which an essential substance or element is transferred among the biotic and abiotic components of the ecosystem.
The material revolves around the earth as well as the atmosphere and is recycled. The biogeochemical cycles such as the carbon cycle, and nitrogen cycle. water cycles etc are all essential for the sustenance of life on Earth.
Without the biogeochemical cycles, resources will not be recycled in the environment and there will be a depletion of resources.
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a single staphylococcus aureus cell gets into a wound on someone's foot. staphylococcus aureus is a bacterium that can cause infections in broken skin. s. aureus divides by binary fission approximately once every 30 minutes. calculate the number of s. aureus cells in the wound after 30 minutes, one hour, and 12 hours.
The number of cells of Staphylococcus aureus present into the open wound, which divides by binary fission once every 30 minutes, after 30 minutes, one hour and 12 hours will be 2, 4 and 1.7 × 10⁷ cells respectively.
Binary fission is the method of asexual reproduction. It is the process by which a cell divides to form two daughter cells.
According to the question, the cell divides into 2 once after every 30 minutes.
The number of cells can be calculated by the formula: 2ⁿ
(where n = number of times the cell will divide in the given time period)
Therefore after 30 minutes, number of cells = 2¹ = 2.
Similarly, after 60 minutes, number of cells = 2² = 4.
In 12 hours, the cell will divide 24 times,
Hence the number of cells will be = 2²⁴ = 1.7 × 10⁷ cells respectively.
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