1. How many food chains make up the food web?
2. Which organism is an herbivore?
3. Which organism is an autotroph?
4. Which organism is a third-order heterotroph? To what trophic level does that organism belong?
5. Which organism is an omnivore?
6. Which organisms belong to more than one food chain?
7. Which organism belongs to more than one trophic level?
8. What are decomposers? From which trophic levels are the organisms that decomposers feed on?
9. What does a pyramid of energy show about the amount of energy available at different trophic levels of a food chain?
10. Why do different trophic levels have different amounts of energy?
Answers
Answer:
A food web can be formed by more than one food chain, since the webs includes all possible interactions that can occur between individuals of different trophic levels.
Explanation:
Based on the scheme shown in the image
1. How many food chains make up the food web?This food network is made up of three food chains
Plant → Bird → SnakePlant → Insect → Bird → SnakePlant → insect → Frog → SnakeFood webs often include several food chains, since they are due to the interaction between organisms at different trophic levels, which actually happens within an ecosystem.
2. Which organism is an herbivore?In this case, both the insect and the bird are herbivorous organisms, since they feed of the producer, which is the plant.
3. Which organism is an autotroph?The only autotrophic organism is the plant, since it is capable of manufacturing its nutrients from sunlight and inorganic matter.
4. Which organism is a third-order heterotroph? To what trophic level does that organism belong?The third order heterotroph is the snake, since it feeds on other animals. The snake is a carnivore and can be a secondary or more commonly tertiary consumer, so it can be placed in the 3rd or 4th trophic level.
5. Which organism is an omnivore?According to the scheme proposed, the bird is omnivorous, since it feeds on both plants and insects.
6. Which organisms belong to more than one food chain?In this case, the plant, the insect, the bird and the snake are part of more than one food chain.
Plant → Bird → SnakePlant → Insect → Bird → SnakePlant → insect → Frog → Snake 7. Which organism belongs to more than one trophic level?The bird can be located in both the second and third trophic level, being a primary consumer —when it feeds on plants— or secondary, when it feeds on insects.
8. What are decomposers? From which trophic levels are the organisms that decomposers feed on?Decomposers are generally bacteria and fungi, organisms capable of degrading organic matter, thus enriching the soil. Decomposers can feed on any trophic level.
9. What does a pyramid of energy show about the amount of energy available at different trophic levels of a food chain?As the ascent of the pyramid occurs —or at the upper trophic level— the amount of energy available decreases. This is because from one trophic level to another only 10% of the energy can be used. If a plant has 5000 Kcal available, the herbivore that consumes it can only use 500 Kcal.
10. Why do different trophic levels have different amounts of energy?The main reason for the difference in energy in each trophic level is that energy is lost in each one of them, which the organisms use in their metabolism. A consequence of the metabolism is the loss of energy as heat, which is acquired by the environment.
Related Questions
what are the limitations of coal
Answers
Answer:
The major disadvantage of coal is its negative impact on the environment. Coal-burning energy plants are a major source of air pollution and greenhouse gas emissions. In addition to carbon monoxide and heavy metals like mercury, the use of coal releases sulfur dioxide, a harmful substance linked to acid rain.
Explanation:
What separates mildew out from other fungi?
Answers
Answer:
Mildew is more identifiable and can be treated with store bought cleaner, but other fungi can be the result of a larger infestation
1. Describe the effect enzymes have on the rates of chemical reactions, such as those occurring
inside animals during hibernation.
Answers
By reducing the activation energy needed for the reaction, enzymes hasten chemical processes. During hibernation, they control metabolic processes, reducing or stopping several chemical activities to conserve energy.
What consequences does hibernation have?When an animal is hibernating, its metabolism drastically slows down. Its heartbeat slows, its breathing becomes more labored, and its body temperature falls—in certain severe cases, to below the freezing point of water (zero degrees Celsius).
How does an animal's requirement for ATP change while it is hibernating?Overall, our findings imply that skeletal muscle of hibernating bears has reduced ATP synthesis and consumption, which would enable to lower metabolic rate while maintaining metabolic balance.
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identify the characteristic of the transverse waves that changed from wave A (ORANGE) to wave B (TEAL
Answers
The characteristics or properties that will make a transverse wave change from wave A(Orange) to wave B (TEAL) is refraction.
What is a transverse wave?Transverse waves are those waves that travel in a perpendicular direction to the vibration of their medium.
The properties of transverse waves include
ReflectionRefractionPolarizationDiffraction.What is Dispersion of white light?
Dispersion is the phenomenon of light of different wavelengths being separated by refraction, by different about when the light passes through a glass prism.
Light is a transverse wave and the characteristic of light that will cause it to undergo Dispersion is refraction.
Hence, the characteristics or properties that will make a transverse wave change from wave A(Orange) to wave B (TEAL) is refraction.
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Answer:
The answer is wave length.
Explanation:
The wavelength changed from wave A to wave B. Wavelength is the distance between corresponding peaks or troughs.
Complete the Table | Biology I
Answers
In the given table the process of multiplication of bacteria and the speed of multiplying has been represented in the table given below. The table show the time and rate of multiplication.
What are bacteria and how they reproduce?Bacteria are known as the single celled microbes. The structure of the cell has the simpler than that of the other organisms as there has no nucleus or the membrane bound organelles. Instead of that their control center containing the genetic information has contained in a single loop of DNA.
Few bacteria have the extra circle of genetic material which is known as the plasmid. The plasmid often contains genes that give the bacterium some advantage over other bacteria. For example it may contain a gene that makes the bacterium resistant to a certain antibiotic.
Therefore, In the given table the process of multiplication of bacteria and the speed of multiplying has been represented in the table given below. The table show the time and rate of multiplication.
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using what you know about the structure of DNA
explain why this placement is crucial to separating the fragments
Answers
Using what you know about the structure of DNA, explain why the placement of positive and negative electrodes during gel electrophoresis is crucial to separating the fragments.
The placement of positive and negative electrodes during gel electrophoresis is crucial to separating the fragments as it allows the movement of charged components of the DNA to the appropriate electrodes.
The deoxyribonucleic acid (DNA) is the nucleic acid in the cells of living organisms which is used to store hereditary information of that organism.
The DNA molecule is made up of two strands (fragments) that curve spirally to form a double helix structure.
The gel electrophoresis is a method that can be used to study DNA through the movement of charged molecules through a gel when electric current passes through it.
The placement of a positive and a negative electrode allows the movement of charged components of the DNA to the appropriate electrodes.
Thus, the phosphate groups on the backbone of DNA molecules which are negatively charged would migrate to the positive electrode of the gel electrophoresis since unlike charges attract.
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How could the extinction of plants have caused the extinction of some animals?
Answers
What was the earliest prehistoric culture to have lived in oklahoma.
Answers
They occupied Oklahoma around 11,000 to 12,000 years ago.
The first life on Earth wasA. prokaryotic.B. eukaryotic.C. prokaryotic and multicellular.D. eukaryotic and multicellular.E. eukaryotic and unicellular.
Answers
The first life on Earth was prokaryotic. There're different theories about the origin of these kinds of cells, among them we can find how it's hypothesized that these basic forms of life came up from other planets in meteorites, what it's known as the panspermia theory of life. On the other, there's said that the primitive conditions after the formation of our planet gave place to cyclic inorganic molecules that replicate themselves in a physicochemical equilibrium, as happens today with the nutrients cycle, for example, and in a primordial soup, these replicated molecules began to conform more complex structures like nucleic acids that lead to the formation of live organisms. Maybe they resulted after those basic molecules were progressively being part of other molecules, and involved other molecules in their basal structures, such as states the endosymbiotic theory. Or maybe the origin of those basic forms of life is the result of these and other theories in conjunction .
How did the formation of the ozone layer contribute to the existence of life on Earth?
O It blocked the Sun's harmful UV rays.
O It caused water vapor to cool, condense and collect.
It released large amounts of oxygen into the air
It warmed Earth's surface preventing materials from freezing.
Answers
Answer:
the ozone layer blocks the sun's harmful Uv rays.
9. The food web for an ecosystem is represented below. (7.5B) Rabbits Foxes Mice & Carrots Owls Birds Grasshoppers, √ Grasses Gr Grains Based on the food web, the populations of which two organisms would directly impact the population of grasshoppers? O O O O Carrots and owls Birds and grasses Mice and grains Foxes and mice
Answers
A parent cell has 24 chromosomes at the beginning of interphase. How many chromatids will it have during prophase? 48 24 12 06 Which of the following best describes a major difference between plant cells and animal cells? O Only plant cells use cellular respiration. Only plant cells have a nucleus containing DNA. Unlike plant cells, animal cells cannot make their own food. Only animal cells have a cell wall.
Answers
During prophase, the parent cell will have 48 chromatids. This is because during interphase, the DNA replicates, resulting in each chromosome consisting of two sister chromatids.
Therefore, if the parent cell has 24 chromosomes, it will have a total of 48 chromatids during prophase.
Regarding the major difference between plant cells and animal cells, the most accurate statement is: "Only plant cells have a cell wall." Plant cells have a rigid cell wall made of cellulose, which provides structural support and protection to the cell. Animal cells, on the other hand, do not have a cell wall. Hence option D is correct.
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Type O blood may safely be given to people with which types of blood? a)A and B only b)O and B only c)AB and A only d)A,B,AB, and O
Answers
Answer:
D
Explanation:
A,B,AB and O. Because the blood group O is a universal donor.
Answer:
D
Explanation:
because type O blood contains A and B and can be identified by the blood cells and not be attacked and type O is a universal blood type, sorry kinda hard to explain
In which type of interaction does one species benefit from the interaction, whereas the other species is harmed by the interaction?
A. parasitism
B. predation
C. competition
D. A and B, but not C
E. none of the above
Answers
In parasitism interaction does one species benefit from the interaction, whereas the other species is harmed by the interaction.
A is the correct answer.
A close association between species is called parasitism, in which one species, the parasite, damages its host by living on or inside it while being structurally adapted to this mode of life.
In a parasitic relationship, one organism, the parasite lives off of another the host doing harm to it and maybe even putting it at risk of dying. On or inside of the host, the parasite resides. The parasites fleas, tapeworms, and barnacles are a few examples.
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People cut down a forest to build a housing development. Which of the following describes how this action will likely affect the water cycle for this region? O Organisms will lose their habitat Groundwater in the area will be reduced More wood will be available for building homes Runoff will be reduced once the streets are paved
Answers
Answer:
It should be, More wood will be available for building homes
& Organisms will lose their habitat
_______________________________________________
*rate this answer and say thanks please!
I put this same answer on a different question.
Hi there! So among the options, there are:
Organisms will lose their habitat
Groundwater in the area will be reduced
More wood will be available for building homes
Runoff will be reduced once the streets are paved
Think about it. This is asking how the water cycle will be affected.
It wouldn't have anything to do with organisms, this is about water. It wouldn't be involving wood, since we're talking about water.
A and C are no longer options.
The answer is B, Groundwater in the area will be reduced. It took me a bit on this one, too, since it's a bit tricky. I also got it right on my exam and I do FLVS, this is in Earth Space Science.
Have a lovely rest of your day!
why is artificial vegetative propagation practiced by Florist?????
Answers
Answer:
It helps to introduce plants in new areas where seed germination fails to produce mature plants due to changes in environmental factors and the soil
Explanation:
Which human trait is inherited in the mendelian pattern of strictly dominant or recessive forms?.
Answers
Albinism is a characteristic that can be passed down through the mendelian gene pool in either absolutely dominant or recessive forms.
What does Mendelian mean?A trait is considered Mendelian if its inheritance conforms to Mendel's theories when it depends solely on a single locus and has just one of its alleles, both dominant or recessive. Numerous qualities are passed down non-Mendelian ways.
What are the three Mendelian laws of genetics?Alteration in our genes can be used to explain these straightforward variations in the phenotypes, or the trait manifested in an organism. The Law of Dominant and Standardization, the Law of Partition, or the Law of Jus Soli are some of Mendel's laws.
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Within a seed, the embryo consists of a root and seed leaves, these seed leaves are called.
Answers
Answer: cotyledon, seed leaf within the embryo of a seed.
Drag the labels to the correct locations. The labels may be used more than once.
Imagine that a space shuttle carrying astronauts is launched from Earth to the International Space Station (ISS). As the shuttle travels toward the ISS, it will encounter different layers of Earth’s atmosphere.
helppppppppppppp Determine the change in temperature that the shuttle will experience while passing through each atmospheric layer.
temperature decreases with altitude
temperature increases with altitude
Answers
Answer:
Troposphere - temperature decreases with altitude
Stratosphere - temperature increases with altitude
Mesosphere - temperature decreases with altitude
Thermosphere - temperature increases with altitude
Here's a visual to to the changes in temperature as altitude increases:
how many layers are in earth atmosphere ?
The Earth’s atmosphere is layered and each layer of the atmosphere has its own specific traits. The atmosphere of Earth is divided into four layers as Troposphere, Stratosphere, Mesosphere and Thermosphere
Generally, temperatures decrease with increasing height because the atmosphere distributes itself according to gravity. In the troposphere, the temperature generally decreases with altitude. The reason is the troposphere's gases absorb very little of the incoming solar radiation.
Troposphere - temperature decreases with altitude
Mesosphere - temperature decreases with altitude
The temperature increases with increasing altitude in the stratosphere because there’s a high concentration of ozone molecules.
Stratosphere - temperature increases with altitude
Thermosphere - temperature increases with altitude
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Giving brainleist
What is the purpose for cell division in a multi-celled organism?
so that the organism can grow
to create genetically varied cells within the organism
to create more parent cells
so that each cell can increase in size
Answers
Answer:
So that the tissues can grow and maintenance also repair themselves of cells and tissues.
Explanation:
Answer:to create genetically varied cells within the organism
Explanation:
what is meant by the terms resolve in gel electrophoresis?
Answers
Gel resolution in gel electrophoresis simply means the degree of separation between the proteins and DNA of different molecular weights.
Gel electrophoresis simply means a laboratory method that is vital for the separation of mixtures of RNA, DNA, or proteins based on their molecular size.
It should be noted that in gel electrophoresis, the molecules that are to be separated are pushed with the aid of an electrical field through a gel that has small pores.
Gel resolution in gel electrophoresis depends on the cross-linking polymer which was used in making the gel and the other materials that provide the gel with the specific desired properties.
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The immediate cause of Parkinson's disease is the: Group of answer choices immediate, mass death of neurons releasing acetylcholine. gradual, progressive death of neurons in the substantia nigra. accumulation of amyloid-beta in neurons. net increase in the excitatory output from the
Answers
The immediate cause of Parkinson's disease is the gradual, progressive death of neurons in the substantia nigra.
Parkinson's disease is a neurodegenerative disorder characterized by the gradual, progressive death of neurons in a specific region of the brain called the substantia nigra. These neurons produce dopamine, a neurotransmitter involved in controlling movement and coordination. The loss of dopamine-producing neurons in the substantia nigra leads to a deficiency of dopamine in the brain.
The death of these neurons is believed to be caused by a combination of genetic and environmental factors, although the exact underlying mechanisms are not fully understood. The accumulation of abnormal protein aggregates, called Lewy bodies, within the neurons is a characteristic feature of Parkinson's disease. These aggregates are thought to contribute to the degeneration and dysfunction of the neurons.
As the disease progresses, the loss of dopamine-producing neurons results in the motor symptoms associated with Parkinson's disease, such as tremors, rigidity, and impaired balance and coordination.
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During lunch each day, Alex and Hailey have been noticing the trashcans around the lunchroom are filling rather quickly with cans and bottles. They decide a recycling program would be beneficial for their school and the environment, so they brainstorm ways to get the program started. Before discussing their idea with the principal, they need to decide which of their plans would best solve the problem. Which of their ideas would best solve the problem with the least amount of inconvenience (disturbance) for everyone involved?
options:
A. Place plastic and metal recycling bins next to each lunchroom trash can.
B. Remove all vending machines that sell plastic bottles or aluminum cans.
C. Get a petition started to build a recycling center close to the school.
D. Ask volunteers to separate recyclable materials from the trash.
Answers
Hope this helps!
An illustration of how a particular DNA mutation will most likely affect the polypeptide produced is shown. (Original DNA strand) GTAGTAGTAGTAGTAGTAGTA (Mutated DNA strand) GTAGTAGTAGGAGTAGTAGTA. What type of mutation is illustrated? A insertion B Translocation C Substitution D Deletion
Answers
one coiled spring is shown in the diagram. a teacher modeled part of a dna molecule using two of these coiled springs.which part of the dna molecule was the teacher most likely modeling?proteingenenitrogen basebackbone
Answers
The teacher was most likely modeling the D. Backbone
In the structure of a DNA molecule, the backbone refers to the alternating arrangement of sugar and phosphate molecules that form the outer edges of the double helix. The nitrogen bases (adenine, thymine, cytosine, and guanine) are attached to the sugar molecules in the interior of the helix, forming the "rungs" of the DNA ladder.
A coiled spring can be a good representation of the backbone of a DNA molecule because it can show the continuous and twisted nature of the sugar-phosphate backbone. The two coiled springs modeled by the teacher likely represented the two strands of the DNA double helix, with the coils representing the backbone.
The other options listed are not directly related to the structure of the DNA molecule:
Proteins are not part of the DNA molecule but play various roles in the cell.Genes are segments of DNA that carry genetic information and determine specific traits.Nitrogen bases, as mentioned earlier, form the rungs of the DNA ladder and pair with each other to provide the genetic code.The complete question should be:
One coiled spring is shown in the diagram. A teacher modeled part of a DNA molecular using two of these coiled springs. Which part of the DNA molecule was the teacher most likely modeling?
A. Protein
B. Gene
C. Nitrogen base
D. Backbone
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On the diagram below, what is the name of region B?
Answers
Name:
133
Unit 10 & 11 RETEST: Expressions &
Equations
Knowledge - Parts of equations and expressions.
13
1. Label each as either an equation or an expression.
a) 5x - 3 = 12
b) 6x - 3
c) 7x + 5 = 9
2. Label each part of the equation. (numerical coefficient, variable, constant term.
What are the math questions
5x-3=12
6x-3
7x+5=9
Are they an equation or expressions?
Answers
Explanation:
To find - 1. Label each as either an equation or an expression.
a) 5x - 3 = 12
b) 6x - 3
c) 7x + 5 = 9
2. Label each part of the equation. (numerical coefficient, variable, constant term.
What are the math questions
5x-3=12
6x-3
7x+5=9
Are they an equation or expressions?
Solution -
1.
An expression containing variables, numbers, and symbols.
An equation that has equal to sign.
a.)
5x - 3 = 12
It is an equation (because it has = sign)
b.)
6x - 3
It is an expression
c.)
7x + 5 = 9
It is an equation (because it has = sign)
2.
Variable is those whose values can be change. For example x, y, z...
Constant term whose values are fixed. For example 10, 4, 5
Numerical coefficient are the constants that placed just before the variable. For example in 4x- 4 is the variable coefficient.
a.)
5x-3=12
5 is Numerical Coefficient
12 and -3 is constant term
x is variable
b.)
6x-3
6 is Numerical Coefficient
-3 is constant term
x is variable
c.)
7x+5=9
7 is Numerical Coefficient
9 and 5 is constant term
x is variable
Based on similarities among forelimbs, what bones did the common ancestor of tetrapods probably possess? in your answer, refer to the bones and how they are connected to each other.
Answers
The bones possessed by the common ancestor of tetrapods in forelimbs were the humerus, radius, ulna, carpals, metacarpals, and phalanges.
When we compare anatomy and morphology, we find certain similarities and differences between the organisms that exist today and the organisms that existed several years ago.
Humans, bats, cheetahs, and whales all have the same origin as well as same basic structure of the skeleton but those structures have been modified due to the adaptation to the environment in which they live.
The forelimbs of whales are modified into flippers for swimming while the forelimbs of bats are modified into wings to facilitate their flight.
In the above case, the forelimbs are homologous organs.
Homologous organs are those organs that have a common origin but different functions.
They represent common ancestry.
Thus, the bones possessed by the common ancestor of tetrapods in forelimbs were humerus, radius, ulna, carpals, metacarpals, and phalanges.
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The switch from mitosis to meiosis in spermatogenesis is regulated by _____ levels of _______ and this is induced by _________. Fill in the blanks.
Answers
The switch from mitosis to meiosis in spermatogenesis is regulated by Follicle-stimulating hormone (FSH) levels of Luteinizing hormone (LH) and this is induced by Glial cell line-derived neurotrophic factor (GDNF).
How does FSH, LH and GDNF help in spermatogenesis?The development and maintenance of spermatogenesis is dependent on the pituitary gonadotropins; FSH and LH.FSH works on Sertoli cells and LH on Leydig cells through their receptors FSHR and LHR respectively.Self-renewal and differentiation of the spermatogonial stem cells (SSCs) is regulated by soluble factors produced by the somatic Sertoli cells. One of these is glial cell line–derived neurotrophic factor (GDNF).Learn more about mitosis and meiosis here:
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What is a macromolecule? Question 6 options: a) a molecule that contains carbon b) a very large molecule c) a molecule that has two hydrogen atoms and one oxygen atom d) a molecule you can see with the naked eye
Answers
Answer:
b)a very large molecule
Explanation:
A macromolecule is a very large molecule, such as a protein. They are composed of thousands of covalently bonded atoms. Many macromolecules are polymers of smaller molecules called monomers. The most common macromolecules in biochemistry are biopolymers and large non-polymeric molecules such as lipids and macrocycles.
