Answers
A trophic pyramid is a visual representation of the trophic levels in an ecosystem, with the producers at the base of the pyramid and the tertiary consumers at the top.
The pyramid would look as follows:
This means that they would match as follows:
• Producers, - Bottom of the pyramid ,(E),
• Primary Consumers, - Second level from the bottom (A)
• Secondary Consumers - Middle of the pyramid (C)
,• Tertiary Consumers - Second level from the top (D)
,• Apex Predator - Top of the pyramid (B)
Related Questions
><38. What structures are found in a plant cell, but not in an animal cell?59. Why does a plant cell have one large vacuole?Read the following examples. Mark "A" for acquired and "T" for inherited traits.20 ✓ Hair length42Hower color44Dimples43 scarsMatch the following key terms to the correct definitionSody weight45:Freckles
Answers
Question: Why does a plant cell have one large vacuole?
Solution (explanation):
Remember that the plants contain membrane-enclosed vacuoles filled with
aqueous solutions containing many dissolved substances. Plant vacuoles have several functions:
1. Plant cells produce a number of toxic by-products and waste materials, many of which are simply stored within vacuoles. And since they are poisonous or distasteful, these stored materials deter some animals from eating the plants. Thus these accumulated wastes may contribute to plant survival.
2. In many plant cells, giant vacuoles take up more than 90 percent of the cell volume and grow as the cell grows. The dissolved substances in the vacuole, working together with the vacuolar membrane, provide the turgor, or stiffness, of the cell, which provides support for the structure of nonwoody plants. The presence of the dissolved substances causes water to enter the vacuole, making it swell like a balloon.
3. Some pigments in petals and fruits are contained in vacuoles.
These pigments are visual cues that help attract the animals that assist in pollination or seed dispersal.
4. In some plants, the vacuoles contain enzymes that hydrolyze seed proteins into monomers that a developing plant embryo can use as food.
Answer: from numeral 2, we can conclude the correct answer is:
Plant cells have a large vacuole due to the amount of water the cell must hold to maintain its shape. The water in the vacuole creates something called Turgor Pressure.
Which two characteristics describe reputable digital resources?
Answers
The two best characteristic best describes the reputable digital resource are, the precision and accuracy. Explanation: The more the accuracy the better the digital product.
HELP ASAP PLEASE
Indoor air pollutants can be dangerous because the air pollutants stay in small space rather than circulating throughout the atmosphere. Which of these choices is an example of an indoor air pollutant?
A. Methane gas
B. Vehicle exhaust
C. Building materials
D. Industrial emissions
Answers
Indoor air pollutants can be dangerous because the air pollutants stay in small space rather than circulating throughout the atmosphere. Option C is the correct answer.
What is the methane gas ?It is the gas that is produced by the cow dung and the gas is produced by the various chemical reactions in it.
Building materials pollution can be reduced out by many ways. Here are a few examples:
Low-VOC Paints: Volatile Organic Compounds (VOCs) are chemicals found in many paints, which can emit harmful fumes into the air for years after the paint has dried. Low-VOC paints contain fewer or no harmful chemicals, reducing indoor air pollution and improving air quality.
Air-Purifying Plants: Certain indoor plants, such as peace lilies, spider plants, and Boston ferns, can help remove harmful pollutants from the air. These plants absorb pollutants such as formaldehyde, benzene, and xylene, improving indoor air quality.
Green Roofs: Green roofs are roofs covered in vegetation that can help absorb pollutants from the air, reducing air pollution in urban areas. Green roofs also provide insulation, reducing energy costs, and can help mitigate the urban heat island effect.
Therefore ways like these should be adopted.
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Is it a scientific theory or a scientific law that the characteristics of living things change over time?
Answers
Answer:
Scientific Theory
Explanation:
The statement "the characteristics of living things change over time" refers to the concept of biological evolution, which is widely accepted as a scientific theory in the field of biology. In scientific terms, a theory is a well-substantiated explanation of a natural phenomenon that is supported by extensive evidence, experimentation, and scientific consensus. The theory of evolution, proposed by Charles Darwin and further developed over time, provides a comprehensive explanation for the diversity and change in the characteristics of living organisms. It is supported by a vast body of evidence from various scientific disciplines, including genetics, paleontology, comparative anatomy, and molecular biology.
In contrast, scientific laws describe observable patterns or regularities in nature that are often expressed as mathematical equations or principles. Laws, such as Newton's laws of motion or the laws of thermodynamics, describe specific relationships or behaviors in the physical world.
Therefore, the statement about the characteristics of living things changing over time aligns with the theory of evolution, rather than being described by a scientific law.
Hope this helps!
Michelle is an agriscientist shopping at a grocery store. She buys whole potatoes to make French fries instead of French fries from the frozen section. What MOST likely is the reason?
Frozen French fries don’t taste good.
Frozen French fries use additives.
Frozen French fries use preservatives.
Frozen French fries are a processed food.
Answers
The most likely reason that Michelle chose to buy whole potatoes instead of frozen French fries is because frozen French fries are a processed food, option D.
What damage can processed foods cause?Processed foods can cause various health problems, such as obesity, type 2 diabetes, cardiovascular disease, and certain types of cancer. These problems are often associated with the high levels of sugar, salt, unhealthy fats, and artificial additives found in many processed foods.
Additionally, many processed foods are low in fiber and nutrients, which can contribute to nutrient deficiencies and poor overall health. Overall, consuming a diet high in processed foods can have negative effects on both physical and mental health, and it is recommended to limit their consumption in favor of whole, nutrient-dense foods.
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Which best describes the structure of a nucliotide
Answers
A nucleotide is composed of three parts: a nitrogenous base, a five-carbon sugar, and a phosphate group.
The nitrogenous base can be either a purine (adenine or guanine) or a pyrimidine (cytosine, thymine, or uracil). The five-carbon sugar is either ribose (in RNA) or deoxyribose (in DNA). The phosphate group is attached to the 5' carbon of the sugar.
The nitrogenous base, sugar, and phosphate group together to form a single nucleotide unit. In DNA and RNA, nucleotides are linked together through a phosphodiester bond between the 3' carbon of one nucleotide and the 5' carbon of the next nucleotide, creating a long chain or strand.
Overall, the structure of a nucleotide can be visualized as a three-part unit consisting of a nitrogenous base, a sugar, and a phosphate group.
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Lesson 13 Review Questions Directions: Answer each of the following questions. 1. List five traits that are shared by all mammals, including the two traits that are used to define the mammal class. 2. Describe how mammals stay warm. 3. What is the function of sweating? 4. What are alveoli? What is their function? 5. What are the functions of the uterus and vagina in therian mammals? 6. What is the placenta? What is its role? 7. Where does a marsupial embryo develop? How is it nourished? 8. Describe eggs and egg laying in monotremes. 9. How does lactation differ in monotremes and therian mammals? 10. What were the synapsids? When were they most widespread? 11. Identify the therapsids. How were they related to mammals? 12. Outline the evolution of monotreme, marsupial, and placental mammals.
Answers
They are one of the three groups of living mammals, along with placentals and marsupials..
What human trait is shared by all mammals?All mammals (including humans) have the same distinctive features. These include: fur or hair growing from the skin. mammary glands that, in females, produce milk for feeding the young.Mammals conserve body heat with their hair or fur. It traps a layer of warm air next to the skin.Mammals and birds produce their own body heat and control their body temperatures. This process is known as endothermy, or warm-bloodedness, and it may be one of the reasons why mammals tend to dominate almost every global ecosystem.Its main function is to control body temperature. As the water in the sweat evaporates, the surface of the skin cools. An additional function of sweat is to help with gripping, by slightly moistening the palms.Muscular contractions of the uterus push the offspring out during birth. The vagina is a tubular passageway through which the embryo or fetus leaves the mother's body.Marsupials give birth to a tiny, immature embryo. The embryo then continues to grow and develop in a pouch on the mother's belly. Marsupial development is less risky for the mother. However, the embryo is fragile, so it may be less likely to survive than the fetus of a placental mammal.To learn more about mammals refer to:
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What is the goal of science? *
To discover how the rules of the natural world operate.
To ignore the effect of the rules of the natural world.
To study what is un-natural about our world.
To discover what scientists already have learned.
Answers
Answer: I think B or C
Explanation: B makes more sence
Which pair of concepts are closely related?
A.
radiation and inertia
B.
electric and magnetic forces
C.
friction and gravity
D.
entropy and momentum
Answers
Which organism receives the most energy in the food chain
Answers
Answer:
humans
Explanation:
We can look at _____________ that existed at any point in Earth’s history which gives us detailed information about the history of life. We divide Earth’s history into different Eons.
Answers
We can look at geology that existed at any point in Earth’s history which gives us detailed information about the history of life. We divide Earth’s history into different Eons.
What is the name of Earth's past?Earth's geologic past, including the development of the continents, oceans, atmosphere, and biosphere. The Earth's surface layers of rock retain evidence of the evolutionary processes that these elements of the terrestrial environment underwent during the times at which each layer was formed.The geologic time scale divides the earth's history into periods based on the types of life that have existed there since the planet's formation. Geochronologic units are what these divisions are known as (geo: rock, chronology: time).A geologist is a scientist who focuses on the processes that shape terrestrial planets and the solid, liquid, and gaseous stuff that makes up the Earth.For more information on geology kindly visit to
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Earth's temperature has increased slightly in the last 100 years. Many scientists believe that
the increase is related to human activities, particularly the burning of fossil fuels. What gas
produced in this process has been most closely linked to rising atmospheric temperatures?
A) soot
B) chlorofluorocarbons
C) nuclear waste
D) carbon dioxide
Answers
The gas produced in the burning of fossil fuels that has been most closely linked to rising atmospheric temperatures is carbon dioxide. Option D
What is the burning of fossil fuel?
As a byproduct of combustion when fossil fuels like coal, oil, and natural gas are used to produce energy, carbon dioxide is discharged into the atmosphere.
As a greenhouse gas, carbon dioxide absorbs heat from the sun inside the Earth's atmosphere, creating the greenhouse effect, which causes global warming. The Earth's natural greenhouse effect, which keeps the globe warm enough to support life, is caused by this phenomena.
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do the usage of synthetic plant hormones for the modification of plant growth have any environmental implications
Answers
The usage of synthetic plant hormones for the modification of plant growth can have environmental implications.
Understanding the Effect of Synthetic Plant HormonesFactors to consider
1. Ecotoxicity: Synthetic plant hormones, if not properly regulated or used in excessive amounts, can pose risks to non-target organisms and ecosystems. They may affect the growth and development of other plants, beneficial insects, and microorganisms, potentially disrupting ecological balance.
2. Soil and Water Contamination: Improper application or disposal of synthetic plant hormones can lead to soil and water contamination. Runoff from treated fields or improper disposal of unused hormones may introduce these compounds into water bodies, potentially affecting aquatic organisms and overall water quality.
3. Resistance and Persistence: Repeated and excessive use of synthetic plant hormones can contribute to the development of resistance in target plant species. This can lead to the evolution of herbicide-resistant weed populations, requiring higher doses or different chemicals to achieve the desired effect. Moreover, some synthetic hormones may persist in the environment for extended periods, potentially impacting subsequent crops or natural vegetation.
4. Non-target Effects: Synthetic plant hormones may influence the growth and development of unintended plant species, leading to unintended consequences such as changes in biodiversity, alteration of natural plant communities, or interference with the natural ecological succession.
5. Human Health Concerns: The potential impacts of synthetic plant hormones on human health are an area of ongoing research. While these hormones are generally considered safe for use in agriculture when used according to regulations, there may be concerns related to exposure, residues, or indirect effects on food quality and safety.
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May someone help me with this please?
Answers
i think so :)
A scientist whose job is protecting endangered animals and their habitats is a good candidate to work at an
A)
Zoo
B)
farm
o
circus
D
pet shop
Answers
Answer:
zoo
Explanation:
Answer:
The Zoo
Explanation:
At the farm- they use animals as a reasourceto give the world food and for money.
Circus- they have to train animals to do things. They don't leave them alone
Pet shop- they keep animals in cages to sell them
The Zoo is the best answer because they treat the animals with lots of care!
Which of the following statements are true of catalysts? Select all correct answers.
A. They are used up in the reaction.
B. They increase the rate of reactions.
C. They are considered reactants in chemical reactions.
D. They lower activation energy.
Answers
D. Catalysts decrease the amount of activation energy that is needed.
The statement that is true about catalysts are:
B. They increase the rate of reactions.
D. They lower activation energy.
What is a catalyst?Catalysts are substances that take are added to the reaction to increase the speed of the reaction and, it does not get consumed in the reaction. A biological catalyst is an enzyme.
They increase the rate of reaction and when the rate increases the activation energy gets low.
Thus, the correct options are B and D.
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The conformational change in an enzyme after the substrate is bound that allows the chemical reaction to proceed, can be explained by
A.induced fit
B. transition
C. fit and fine
D. Pasteur
Answers
A single codon is used to signal the beginning of protein synthesis. It is commonly called the START CODON. Locate the start codon on the chart. What are the three bases of this codon? ________
Answers
About the question:
You will find the chart in the attached files
Answer:
The strat codon is AUG
Explanation:
Genetic information for the aminoacids assembly during the protein synthesis is stored in short sequences of three nucleotides named codons in the mRNA. Each of the codons represents one of the 20 amino acids used to build the protein. The total number of possible codons is 64, from which 61 codify amino acids -more than one codon codify for the same amino acid-. One of these amino acids is also the start point of protein synthesis. And the left three codons are stopping translation points.
The codons indicating the initiation or stop points during the translation process are:
The start codon AUG is the most common sequence used by eukaryotic cells and places near the 5´extreme of the molecule. However, other codons might be used as well. Prokaryote cells might use the codons GUG or UUG. The end codons are UAA, UAG, UGA.
Answer:
AUG
Explanation:
What are the three bases of this codon? AUG
red wolves are aa endangered species in the United States. which agency is responsible for their protction
Answers
Answer:
the US fish and wildlife service
Explanation:
What data did the tests on the purfied substance produce? How did this data further support the hypothesis that DNA is the transforming factor?
Answers
Answer:
The tests on the purified substance revealed that it contained high levels of phosphorus and very little sulfur. This finding was significant because DNA contains high levels of phosphorus but very little sulfur, while proteins contain high levels of sulfur but very little phosphorus. This data further supported the hypothesis that DNA was the transforming factor, as it suggested that the substance being studied was DNA rather than a protein. This was because the levels of phosphorus found in the purified substance were consistent with what would be expected from DNA, while the levels of sulfur were not consistent with what would be expected from a protein. Therefore, the data from the tests on the purified substance provided strong evidence that DNA was the transforming factor.
Which of the following helps to maintain
homeostasis in a human?
(1) sweating
(2) running
(3) sleeping
(4) crying
Answers
Answer:
1.
sweating it allows your body to cool down when you get hot. :)
Explanation:
What are 4 things plants need to perform photosynthesis
(multiple choice)
Water
Sunshine
Oxygen
Glucose
Chlorophyll
Carbon dioxide
And what do plants give uh through photosynthesis?
Answers
Answer:
Water
Sunshine
Carbon dioxide
They give us Oxygen
Answer:
» Water
»Sunshine
»Carbondioxide
»Chlorophyll
Products: Glucose and oxygen
Write out a summary that will go with your model to explain what it is showing. Remember that this should be scientifically accurate, but it's an explanation for elementary school students. Your summary should include:
Position and motion of the solar system (You did this in the Module 2 Check Your Learning activity! Modify your formal explanation for a younger audience.)
How the universe was formed through the Big Bang Theory (You did this in the Module 1 Check Your Learning activity! Modify your formal explanation for a younger audience.)
Answers
The planets orbit the Sun in the same plane and the Big Bang Theory states an explosion of space, marked the beginning of our cosmos.
What is Big Bang Theory?The galactic plane and the planetary orbital plane form a roughly 60° angle as the Solar System travels through the galaxy.
As it circles around the Milky Way, the Sun appears to move up and down and in and out of the galaxy.
The Big Bang, an explosion of space, marked the beginning of our cosmos. Space expanded, the cosmos cooled, and the basic elements emerged from a very high density and temperature starting point.
The first stars and galaxies were created as a result of the slow gathering of stuff by gravity.
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in which place would you find the fewest organism?
The sahara desert
The peak of Mt everest
A savannah
A rain forest
Answers
Answer:
The peak of mt everest
l think this is correct answer
l hope it's helpful for you....
Describe the mangroves ecosystem and its role in sustaining the ecosystem in the food web or food chain
Answers
Mangroves are coastal ecosystems that provide habitats, food, and protection for various species, supporting the food web.
The mangrove ecosystem is a unique and highly productive coastal habitat characterized by mangrove trees, which are specially adapted to survive in saline environments. Mangroves are typically found in tropical and subtropical regions along sheltered coastlines, estuaries, and intertidal zones.
Mangroves are vital in sustaining the ecosystem by providing various ecological services. One of their significant contributions is their role in the food web or food chain.
They serve as a critical nursery and feeding ground for a diverse range of marine species. The intricate network of roots, known as prop roots, provides habitat, protection, and feeding opportunities for numerous organisms, such as fish, crustaceans, mollusks, and birds.
The mangrove leaves and detritus that fall into the water serve as a source of organic matter and nutrients, fueling the base of the food web. Decomposers and detritivores break down the organic matter, which is then consumed by various organisms.
Small organisms, like zooplankton and small fish, feed on the decomposers and detritivores, becoming prey for larger predators such as fish, birds, and reptiles.
Furthermore, mangroves act as a buffer against coastal erosion and storm surges, protecting shorelines and adjacent habitats. They also contribute to water filtration, nutrient cycling, and carbon sequestration, and provide a habitat for numerous endangered and migratory species.
In summary, the mangrove ecosystem plays a crucial role in sustaining the food web or food chain by providing habitat, nursery areas, and food sources for a diverse array of organisms. Their presence supports the productivity and biodiversity of coastal ecosystems, making them an essential component of coastal environments worldwide.
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This chart gives data on greenhouse gas emissions in the United States from 1990 to 2013. Which questions would help clarify the evidence in the chart? Graph of U.S. Greenhouse Gas Emissions by Gas, 1990-2013. Horizontal line, 1990-2013. Bottom to above, gases shaded are Fluorinated, Other greenhouse, Methane, Carbon Dioxide in million metric tons of carbon dioxide equivalents ranging from 0-8,000.
Answers
The questions that would help clarify the evidence in the chart are:
A. What percentage of total greenhouse gas emissions is caused by natural sources?
C. Why are carbon dioxide emissions so much higher than other greenhouse gases?
What are greenhouse gases?A greenhouse gas is a particular kind of gas that both absorbs and emits radiant radiation, which causes the atmosphere to warm.
Methane, nitrous oxide, carbon dioxide, and other manmade compounds are among the main greenhouse gases.
Carbon dioxide is cited as the most significant greenhouse gas since it now contributes the most to the warming caused by human activity,
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Complete question:
This chart gives data on greenhouse gas emissions in the United States from 1990 to 2013. Which questions would help clarify the evidence in the chart? Select ALL the correct answers.
1. What percentage of total greenhouse gas emissions is caused by natural source?
2. Should industries emitting carbon dioxide in huge amounts be fined or punished?
3. Why are carbon dioxide emissions so much higher than other greenhouse gases?
4. Why did the quantity of carbon dioxide emissions stay constant throughout the period?
5. What is the chemical formula for methane?
Which of the following can not be synthesized from intermediates formed during glycolysis and the citric acid cycle in human cells?
-nucleotides
-cholesterol
-amino acids
-lipids
-vitamin C
Answers
Option E: Vitamin C cannot be synthesized from intermediates formed during glycolysis and the citric acid cycle in human cells.
Many primates, including humans, lack the gene necessary to produce vitamin C. The precursors created during glycolysis and the citric acid cycle can be used to generate all of the other compounds listed, as well as heme and the chlorophyll produced by plants. As a result, option E is the best one.
From a single glucose molecule, the citric acid cycle produces 36 mol of ATP, as well as reduced nicotinamide adenosine diphosphate and other organic compounds that act as intermediates in the biosynthesis of amino acids (for example, glutamate is made from -ketoglutaric acid, an intermediate in the citric acid cycle).
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Dynamic cell seeding allows higher cell seeding efficacy to engineered 3D scaffolds therefore it is mostly preffered by the scientists. Fibroblasts tend to attach on the silicone tube wall but this stiuation is not appropriate for reching maximum cell seeding efficacy on a scaffold. Preventing cells for not to attach on silicone tube, applied force on a single fibroblast should exceed 6500 picoNewton (required minimum force). In the designed cell culture dynamic fibroblast seeding experiment, silicone tube inner diameter is 3.8 mm and fibroblasts surface area is 450 μm2. Please calculate the minimum flow rate as liter per minute of the fibroblasts included cell culture media through silicone tube to prevent fibroblasts adhesion on silicone tubes.
Answers
The minimum flow rate as liter per minute of the fibroblasts included cell culture media through silicone tube to prevent fibroblasts adhesion on silicone tubes is 769.210527 L/min.
What is the minimum flow rate about?To calculate the minimum flow rate of the fibroblasts-included cell culture media through the silicone tube, we have to use the following equation:
Flow rate (L/min) = (Force (pN) * Surface area (μm^2)) / (Viscosity * Inner diameter (mm))
In this case, the force applied on a single fibroblast should exceed 6500 picoNewtons, the surface area of the fibroblasts is 450 μm2, the viscosity of the cell culture media is typically around 0.5-1.5, and the inner diameter of the silicone tube is 3.8 mm. Plugging these values into the equation gives us:
Flow rate (L/min) = (6500 pN * 450 μm^2) / (1.0 * 3.8 mm)
= (2925000 pNμm^2) / (1.0 Pas * 3.8 mm)
= 769210.527 pNμm^2 / (Pas * mm)
= 769.210527 L/min
So the minimum flow rate of the fibroblasts-included cell culture media through the silicone tube to prevent fibroblast adhesion would be around 769.210527 L/min.
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1. What is an ideal gas?
Answers
Answer: An ideal gas is a gas that conforms to the ideal gas law, which is a relation between pressure, volume, and temperature. it is a theoretical gas composed of many randomly moving point particles that are not subject to interparticle interaction. :)
Explanation:
10. How do the personality traits of married couples compare to randomly coupled people?
O A. Personality traits have no impact on relationships.
B. Married couples often have fewer similarities than randomly coupled people.
C. Married couples often have more similarities than randomly coupled people.
D. Married couples often have nothing in common.
Answers
Answer:B
Explanation:
Answer: Married couples often have more similarities than randomly coupled people.
Explanation: "researchers developed a couple-based compatibility test to measure the compatibility of couples based on similarity in looks, personality, intelligence, social skills, attitudes, habits, and leisure preferences. Married couples had the most similarities compared to randomly coupled people. This information suggests that we’re more likely to look for people who are just like ourselves. Science certainly seems to suggest that opposites don't always attract."