Which organisms in an ecosystem are most likely to be affected by bioaccumulations of toxins? Explain.
Answers
Answer:
It is usually the top of the food chain species because it is the one that receives the most of whatever is bioaccumulating.
Explanation:
Related Questions
1.Explain what are the main Environmental issues in Russia
2.In your opinion, how should the resources be distributed in a globalised in System? Explain
3.What are the advantages and disadvantages of a Globalised system?
Answers
1. Main environmental issues in Russia include air pollution, deforestation, water pollution, soil degradation, and nuclear contamination.
2. In a globalized system, resources should be distributed based on principles of fairness, sustainability, and addressing basic human needs, taking into account the varying capacities and needs of different countries.
3. Advantages of a globalized system include increased economic interdependence, access to a wider range of goods and services, technological advancements, and cultural exchange.
Disadvantages include income inequality, exploitation of resources and labor, loss of cultural diversity, and vulnerability to global economic shocks.
1. Russia faces several significant environmental issues. Air pollution is a major concern, particularly in industrial regions, due to emissions from factories, power plants, and transportation.
Deforestation is another issue, driven by logging for timber and the expansion of agricultural activities. Water pollution is prevalent in many rivers and lakes, mainly caused by industrial discharges and inadequate wastewater treatment. Soil degradation is a problem in agricultural areas due to intensive farming practices and erosion. Nuclear contamination is a legacy of the Soviet era, with accidents like Chernobyl and ongoing challenges associated with nuclear waste disposal.2. Resource distribution in a globalized system should aim for fairness and sustainability. It should consider the principles of social justice, ensuring that basic human needs are met for all people. This requires acknowledging the varying capacities and needs of different countries.
Developing countries often require more resources to address poverty, healthcare, and education, while developed countries should take responsibility for reducing overconsumption and environmental degradation. Distribution should also prioritize sustainability by promoting renewable energy sources, responsible resource extraction, and conservation practices. Collaboration, transparency, and accountability among nations are essential in ensuring an equitable distribution of resources.3. The advantages of a globalized system are manifold. Increased economic interdependence promotes global growth, cooperation, and peace.
Access to a wider range of goods and services benefits consumers, fostering innovation and competition. Technological advancements are accelerated through global collaboration and the exchange of knowledge. Cultural exchange promotes understanding and appreciation of diverse perspectives, fostering tolerance and cooperation.However, there are disadvantages to consider. Globalization can exacerbate income inequality, with some regions and individuals benefiting more than others. It can lead to the exploitation of resources and labor in developing countries, as corporations seek cheap production costs. Globalized systems may also lead to the loss of cultural diversity and the homogenization of societies. Moreover, interconnectedness can make countries vulnerable to global economic shocks and crises, as demonstrated during the 2008 financial crisis and the recent COVID-19 pandemic. Striking a balance between the benefits and challenges of globalization requires careful consideration of social, economic, and environmental factors.To know more about "Deforestation" refer here:
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Name and discuss three ways in which Carver’s work altered biotechnology. How do enzymes function? What is ABE fermentation? How was glycerol produced? Who invented ABE fermentation? What was the importance of this invention?
Answers
George Washington Carver was an American agricultural scientist and inventor. He is best known for his work with peanuts, sweet potatoes, and soybeans.
How did Carver's work alter biotechnology?He developed new ways to use agricultural products. Carver was a strong advocate of using agricultural products to create new products and materials. He developed hundreds of products from peanuts, sweet potatoes, and soybeans, including paints, dyes, plastics, and soaps.
He promoted the use of sustainable agriculture practices. Carver was a strong advocate of using sustainable agriculture practices. He believed that farmers should use crop rotation, cover crops, and other methods to improve soil health and reduce erosion.
He educated farmers about the importance of nutrition. Carver was a strong advocate of educating farmers about the importance of nutrition. He taught farmers how to grow and prepare nutritious foods, and he promoted the use of agricultural products to improve the diets of people around the world.
Enzymes are proteins that catalyze chemical reactions in living organisms. They are essential for life, and they play a role in a wide variety of biological processes, including digestion, metabolism, and cell signaling.
ABE fermentation is a process used to produce acetone, butanol, and ethanol from renewable resources such as corncobs, sugarcane bagasse, and wood. The process is carried out in a series of bioreactors, where the biomass is fermented with a consortium of bacteria.
Glycerol is a sweet, colorless, odorless liquid that is produced from a variety of sources, including vegetable oils, animal fats, and glycerol esters.
ABE fermentation was invented by Chaim Weizmann in the early 1900s. Weizmann was a biochemist who was working on ways to produce acetone for use in explosives during World War I. He discovered that a consortium of bacteria could ferment corncobs to produce acetone, butanol, and ethanol.
The importance of ABE fermentation lies in its ability to produce valuable chemicals from renewable resources. Acetone, butanol, and ethanol are all used in a variety of industries, including the chemical, pharmaceutical, and fuel industries.
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the central driver of evolution is a. natural selection. b. disruptive selection. c. gene flow. d. genetic drift.
Answers
The central driver of evolution is genetic drift, which means option D is the right answer.
Genetic drift is the biological phenomenon when the gene is transferred to some place at random or by intention. For example: transfer of pollen grains to distant places by animals or wind and then pollination between plants results in gene expression in the new place. This is an example of genetic drift. It is basically change to population's gene pool through some chance. It is done by two ways namely Founder's effect and Bottle neck effect. Gene drift is important because it is the basis of genetic variations in the environment which helps in better survival of species and elimination of chances of extinction of any specific frequency of alleles.
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A summary of some scientific steps is outlined below.
1. Ask scientific questions.
2. Make observations with the senses.
3. Record data in a table or graph
4. Notice trends in the data.
5. Publish or present the findings.
cess is shown here. If a scientist will make an inference, between which two steps would "making an inference" most likely occur?
en 1 and 2
en 2 and 3
en 3 and 4
een 4 and 5
Answers
Answer:
en 1 and 2
Explanation:
Translate the following DNA Strand:
GUC AUG UUU AGU UCC CUA UAG
Answers
Answer:
The complimentary strand of codons would be CAG-UAC-AAA-UCA-AGG-GAU-AUC.
Explanation:
C (Cytosine) pairs to G (Guanine).
Think of it as *C*ar in the *G*arage.
A (Adenine) pairs to U (Uracil).
Think of it as *A*pples *U*nder the tree.
Answer:
(GUC) Valine (AUG) start codon ( UUU) lysine (AGU) serine (UCC) serine (CUA) serine (UAG) codons
A student carried out an investigation into the effect of temperature on the rate of an
enzyme-catalysed reaction.
At each temperature, the substrate concentration was measured after 10 minutes. All the other
variables were kept constant.
Which graph shows the effect of increasing temperature on the substrate concentration after
10 minutes?
Pls explain
Answers
Answer:
First graph.
Explanation:
If further increase in temperature occurs, it leads to decrease the substrate concentration because with very high temperature the enzyme is unable to perform its function. If the temperature is in optimum range, the enzyme produces more substrate due to favorable environment while on the other hand, if the temperature is below or above the optimum range so the enzyme can't perform its function properly and the substrate produce in small concentration.
Plants and animals use glucose to to create atp energy in what process
Answers
Answer:
cellular respiration
Explanation:
Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products
At a given hydrostatic pressure and a given pressure head, the tension within the wall of a blood vessel will ________ and the blood flow will ________ as the diameter of that vessel increases..
Answers
At a given hydrostatic pressure and a given pressure head, the tension within the wall of a blood vessel will _____decrease___ and the blood flow will ____increase____ as the diameter of that vessel increases.
Cardiac output measures how much blood the heart pumps in a minute. It is computed by multiplying the stroke volume by the number of heartbeats per minute (heart rate) (the volume of blood pumped into the aorta per contraction of the left ventricle). As a result, raising heart rate during exercise can enhance cardiac output.
However, increasing the stroke volume, as would happen if the heart contracts more forcefully, is another way to enhance cardiac output. Increasing blood flow through the body more quickly can potentially increase the volume of a stroke by allowing more blood to enter the heart between contractions. Heavy exercise causes the blood vessels to relax and expand, which balances the increased heart rate and ensures that enough oxygenated blood gets to the muscles.
Stress results in a reduction in blood vessel diameter, which raises blood pressure. Blood pressure variations can also be brought on by hormones or nerve signals, and even simple actions like rising up or lying down can significantly affect blood pressure.
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I
4. How does carbon move through Earth's spheres in the fast carbon cycle? Be sure
to include carbon sinks and
explanation. (2 points)
sources and the movements between them in your
Answers
The basic foundation of Earth's life is iron. The Earth's temperature is set by carbon molecules, which also mix the food we eat as well as the energy that drives our globalization.
What uses does carbon serve?Coke created of coal and ashes made from wood are products of the impure materials used in metal smelting. Particularly for said steel and iron industry sectors, it is essential. Electrical bristles, furnace linings, and pencils all make use of graphite. Devices for filtration and purification use activated charcoal.
How dangerous is carbon?An odorless gas called carbon monoxide kills thousands of people in North America every year. Inhaling carbon monoxide is extremely risky. In the US, it is the main cause of poisoning fatalities.
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How do convergent and divergent evolution illustrate the directional nature of natural selection?
Answers
Answer:
Convergent evolution describes evolution toward similar traits in unrelated species.
Explanation:
what generates the gradients that almost all cells use but are particularly important in neuronal signaling?
Answers
The gradients that are particularly important in neuronal signaling are generated by ion channels.
Ion channels are membrane proteins that create a selectively permeable pathway for ions to move across the cell membrane. They are responsible for maintaining the resting membrane potential and generating action potentials in neurons.
Ion channels are essential for a variety of cellular processes, including signal transduction and communication between cells. The movement of ions across ion channels generates concentration gradients, electrical gradients, or both, depending on the ions involved and the concentration differences between the inside and outside of the cell.
These gradients are critical for many physiological processes, including muscle contraction, hormone secretion, and neural signaling. The opening and closing of ion channels are tightly regulated and are subject to various modulatory factors that influence their activity.
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A chemical by itself is harmless in the human body. However, in the presence of lead, the
chemical becomes toxic. This is the result of
Select one:
Oa. Bioaccumulation
Ob. Biomagnification
Oc. The Synergy Effect
Od. Endocrine Disruptors
Answers
If a harmless chemical becomes toxic in the presence of lead, this is the result of the Synergy Effect.
What is the Synergy Effect?The Synergy Effect refers to a phenomenon in which a substance can change its properties such as toxicity in the presence of another substance.
In this case, the chemical is under the Synergy Effect because it becomes toxic in the presence of a metal (Pb).
This effect is evident when the interaction of chemical substances is not equal to the substances alone.
In conclusion, if a harmless chemical becomes toxic in the presence of lead, this is the result of the Synergy Effect.
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All of the chemical reactions that occur within a cell are collectively referred to as metabolism. This includes ________, which are those reactions that use energy and synthesize building blocks and macromolecules, and ________, which are the cellular reactions that break larger molecules into smaller molecules and release energy.
Answers
Metabolism encompasses anabolic reactions that use energy to synthesize building blocks and macromolecules, and catabolic reactions that break larger molecules into smaller molecules and release energy.
Metabolism refers to all the chemical reactions that occur within a cell. It can be divided into two main categories: anabolism and catabolism.
Anabolism, also known as biosynthesis, encompasses the set of metabolic reactions that require energy to build complex molecules from simpler ones. These reactions involve the synthesis of building blocks such as amino acids, nucleotides, and sugars, which are then used to assemble macromolecules such as proteins, DNA, and carbohydrates. Anabolic reactions are essential for cellular growth, repair, and the production of necessary molecules for cellular functions.
Catabolism, on the other hand, refers to the set of metabolic reactions that break down larger molecules into smaller ones, releasing energy in the process. The energy released during catabolic reactions is stored in the form of ATP (adenosine triphosphate), which can be used by the cell for various energy-requiring processes.
In summary, metabolism encompasses anabolic reactions that use energy to synthesize building blocks and macromolecules, and catabolic reactions that break down larger molecules into smaller ones and release energy. Together, these processes regulate the flow and utilization of energy and molecules within a cell.
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Which sentence best describes a monarch butterfly as a living system that is one part of a more complex system
Answers
A monarch butterfly can be described as a living system that is one part of a more complex system. As a living system, the monarch butterfly possesses various characteristics and functions that allow it to survive, reproduce, and interact with its environment.
Firstly, the monarch butterfly undergoes a complex life cycle, which includes four distinct stages: egg, larva (caterpillar), pupa (chrysalis), and adult. Each stage has specific adaptations and behaviors that contribute to its overall survival. For instance, the adult butterfly has specialized wings that enable it to fly and search for food sources.
Additionally, the monarch butterfly is part of a more complex system known as the ecosystem. Ecosystems are comprised of living organisms, such as plants, animals, and microorganisms, as well as their non-living environment, including the soil, water, and air. Monarch butterflies play a crucial role within this system as pollinators. While searching for nectar, they inadvertently transfer pollen from one flower to another, aiding in plant reproduction.
Moreover, monarch butterflies are part of a larger population and community. They are social insects that migrate in large numbers between different regions. This behavior is influenced by environmental factors such as temperature and availability of food. The migration of monarch butterflies is a remarkable example of how individuals come together to form a collective system.
In summary, a monarch butterfly can be described as a living system that is one part of a more complex system. Its life cycle, ecological role as a pollinator, and participation in migration all contribute to its integration within the larger ecosystem. Understanding the interconnectedness of living systems is crucial in appreciating the diversity and functionality of the natural world.
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what is the neurotransmitter involved at the synapse between the preganglionic and postganglionic cells of both the sympathetic and parasympathetic nervous system?
Answers
The neurotransmitter involved at the synapse between the preganglionic and postganglionic cells of both the sympathetic and parasympathetic nervous system is acetylcholine (ACh).
Acetylcholine is a neurotransmitter that is released from the preganglionic neuron of both the sympathetic and parasympathetic nervous systems. It binds to nicotinic acetylcholine receptors on the postganglionic neuron, causing depolarization and the release of neurotransmitters specific to each system. In the parasympathetic nervous system, the postganglionic neuron releases ACh, which binds to muscarinic acetylcholine receptors on target organs. In the sympathetic nervous system, the postganglionic neuron releases norepinephrine or epinephrine, which bind to adrenergic receptors on target organs. Overall, the release of ACh at the preganglionic-postganglionic synapse plays a critical role in the function of both the sympathetic and parasympathetic nervous systems.
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there are 100 students in a class. 84 did well whereas 16 blew it totally
Answers
Out of 100 students in a class, 84 students performed well while 16 students did not perform well at all. This means that 84% of the students in the class succeeded, while 16% failed. It is important to note that this distribution of performance is not uncommon, as some students may struggle more than others with the material or have external factors impacting their academic performance.
This distribution could be due to various reasons such as a lack of understanding of the material, poor study habits, or external factors such as personal or family issues.
It is important for educators to identify these issues and offer support and resources to help students succeed.
The performance of the students in this class was not evenly distributed, with a majority of the students performing well and a minority struggling.
This highlights the importance of identifying and addressing the factors that may impact student performance, and providing support and resources to ensure all students have the opportunity to succeed.
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define target cell and explain why all cells are not target cells for all hormones
Answers
While all cells are exposed to hormones circulating in the bloodstream, not all cells react. Only a hormone's "target" cells, which have receptors for that hormone, will respond to its signal. When the hormone binds to its receptor, it causes a biological response within the cell.
How do plants and animals get nitrogen if not from the atmosphere?
Answers
Answer:
All plants and animals need nitrogen to make amino acids, proteins and DNA, but the nitrogen in the atmosphere is not in a form that they can use. ... Animals get the nitrogen they need by eating plants or other animals that contain nitrogen.
Explanation:
Are all living things made of cells, explain your answer?
Answers
Answer:
yes
Explanation:
cells are the smallest living thing. everything that is alive is composed of them.
To make organic fertilizer by composting, you should not include ________.
A) crop residues
B) dead leaves, weeds
C) animal manures
D) shredded plastic and metals
E) wood chips
Answers
To make organic fertilizer by composting, you should not include Shredded plastic and metals.
What is fertilizer?Fertilizer is a material that is added to soil to provide essential plant nutrients and improve crop yields. It is typically composed of macronutrients such as nitrogen, phosphorus, and potassium, as well as other micronutrients that are beneficial to plant growth. Fertilizers can be organic or inorganic, and they are applied to the soil in a variety of ways. Organic fertilizers are derived from plant, animal, and mineral sources, while inorganic fertilizers are composed of chemical compounds. Fertilizers are essential for both agricultural and home gardening purposes, as they provide essential nutrients to crops and plants that are not naturally present in the soil. Fertilizers help to enrich the soil and promote healthy, vigorous plant growth.
Therefore, the correct option is A.
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quantification of root water uptake and redistribution using neutron imaging: a review and future directions
Answers
Quantification of root water uptake and redistribution using neutron imaging: a review and future directions highlights d) Neutron imaging allows for non-destructive and high-resolution visualization of water movement in roots, providing valuable insights into plant water relations.
Neutron imaging is a powerful technique used in plant science to study the movement of water in roots. It offers non-destructive and high-resolution visualization of water dynamics, allowing researchers to observe the uptake and redistribution of water in plants. This technique utilizes the interaction of neutrons with hydrogen atoms present in water molecules, enabling the imaging of water distribution in root systems.
By employing neutron imaging, researchers can gain valuable insights into plant water relations, including the uptake of water by roots, water transport within the root system, and water redistribution among different plant organs. This information is crucial for understanding plant water balance, nutrient uptake, and overall plant health.
The non-destructive nature of neutron imaging allows for repeated measurements over time, enabling the tracking of water movement under different environmental conditions or in response to various treatments. This capability is particularly beneficial for studying the effects of drought stress, waterlogging, or changes in soil moisture availability on root water uptake and redistribution.
Overall, neutron imaging offers a valuable tool for quantifying and visualizing root water uptake, contributing to our understanding of plant water relations and informing strategies for optimizing water use efficiency in agriculture and environmental management.
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The complete question is:
Quantification of root water uptake and redistribution using neutron imaging: a review and future directions highlights:
a) Neutron imaging is a powerful technique for studying root water uptake and redistribution in plants.b) The review provides an overview of the current knowledge and advancements in using neutron imaging for studying root water uptake.c) The review also discusses the potential future directions and advancements in the field of quantifying root water uptake and redistribution using neutron imaging.d) Neutron imaging allows for non-destructive and high-resolution visualization of water movement in roots, providing valuable insights into plant water relations.e) The review emphasizes the importance of integrating neutron imaging with other techniques to gain a comprehensive understanding of root water uptake dynamics.Plants absorb light energy and store that energy in the form of what
Answers
Answer:Chemical energy
Explanation: photosynthesis is the process plants use to convert light energy to chemical energy stored as sugar within chloroplasts
Plants absorb light energy and store that energy in the form of carbon dioxide. The correct option is B.
What is photosynthesis?The operation by which green plants and numerous other organisms convert light energy into chemical energy is known as photosynthesis.
Light energy is harnessed and used by green plants during photosynthesis to convert water, carbon dioxide, and mineral deposits into oxygen and energy-rich organic compounds.
Photosynthesis is the method by which plants convert sunlight, water, and carbon dioxide into oxygen and sugar energy.
light energy is absorbed and stored that energy in the form of carbon dioxide.
A chloroplast is a type of plastid that provides as the premises of photosynthesis, which is the process by which solar energy is converted into chemical energy for growth.
Thus, the correct option is B.
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Your question seems incomplete, the probable options are:
A waterB carbon dioxideC sugarD oxygen Why are deep sea vents thought to be good candidates for the origin of life?
A. Vents release high concentrations of light isotopes, which speeds up enzymatic reactions
B. The iron sulfides in vents may have trapped and protected ancient biomolecules
C. Vents create new seafloor, which makes room for new life
D. Vents produce complex organic molecules that formed in underground magma chambers
Q2. Which of the following is not true about the RNA world hypothesis?
A. Ribosomes are active lipid molecules that catalyze cell formation
B. RNA evolved into DNA and proteins
C. Lipids may have formed a protective environment for RNA to function inside
D. RNA is catalytic and can self-replicate
Answers
Answer:
Question 1
option-a
Question 2-
option a
digoxin is a positive inotropic agent that can be administered intravenously. what effect can be predicted in a patient who is treated with digoxin?
Answers
Digoxin is a positive inotropic agent that can be administered intravenously. The effect that can be predicted in a patient treated with digoxin is an increase in the strength and force of heart contractions.
Digoxin is a cardiac glycoside obtained from the leaves of the Digitalis lanata plant that is utilized to treat congestive heart failure and heart rhythm disorders like atrial fibrillation. It increases the force of heart contractions by inhibiting the activity of the sodium-potassium ATPase pump in cardiac cells, leading to a rise in intracellular calcium levels.
Digoxin is utilized to treat a variety of cardiac problems by enhancing the strength and force of heart contractions. Because of the positive inotropic effect of Digoxin, it is frequently utilized in the treatment of congestive heart failure (CHF), atrial fibrillation/flutter, and supraventricular tachycardia (SVT). It slows the heart rate and increases cardiac output. It's also used to manage certain arrhythmias, including atrial fibrillation.
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can you name other examples of specialized animals parts?
Answers
Answer:
red blood cells
skin cells
sperm cells
nerve cells
Explanation:
I REALLY NEED HELP ASAP!!!!!!!
*I attached a picture but heres the question just in case!"
"The diagram below shows the structures of an animal cell. What is structure 3, and how does it help sustain life?"
Answers
Answer: I think it’s B but I am not sure sorry dude
Explanation:
which of the following contributes to air pullution
Answers
Answer:
Anthropocentric Sources
Explanation:
i wish this will be the answer for this question.
Look at the paragraph below. What are the two missing words that go in space 3?
1
are large molecules of DNA.2 are small sections of DNA which code for a particular sequence of 3
to make a specific 4
Different versions of genes are called
5
Answers
Ribonucleic acid, sometimes known as RNA, is a second nucleic acid that exists in every cell. RNA is a nucleotide polymer, much like DNA.
A nitrogenous base, a sugar with five carbons, and a phosphate group make up each of the nucleotides in RNA. Instead of deoxyribose, ribose serves as the five-carbon sugar in the case of RNA. Unlike deoxyribose, which contains the nitrogenous bases adenine, cytosine, and guanine at the 2′ carbon, ribose has a hydroxyl group.
They do not, however, contain thymine; rather, they do contain uracil, which is represented by the letter "U." The structure of RNA is a single-stranded molecule, not a double-stranded helix. According to their intended use, molecular biologists have given a variety of RNA types their own names. Transfer RNA (tRNA), messenger RNA (mRNA) and ribosomal RNA.
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please help asap I am giving away 75 points
The prothallus of the fern produces spores.
A. True
B. False
Answers
Answer:
True giving away
Explanation:
Mark brainliest
where is wind energy taken from
Answers
Answer:
The sun's uneven heating of the atmosphere, changes in the earth's temperature, and the earth's rotation all contribute to wind. Wind flow patterns are influenced by mountains, bodies of water, and plants. Wind turbines work by spinning propeller-like blades around a rotor to turn wind energy into electricity.
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