During energy transfer, 10% of the energy is transferred to the next trophic level and 90% is lost to the environment. Energy transfers from one trophic level to the next trophic level and not the third trophic level.
What is Energy transfer?Energy transfer is the amount of energy at each trophic level which is transferred to the next trophic level. Energy decreases as it moves through an ecosystem. As little as 10% of the energy at any trophic level is transferred to the next level and the rest is lost largely through metabolic processes as heat energy.
From each trophic level to the next trophic level, about 90% of the starting energy is unavailable to the next trophic level because the energy is used for different processes such as movement, growth, respiration, and reproduction and some energy is lost as heat.
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Which term best describes viruses?
a. Miniscule
b. Gargantuan
c. Harmless
d. Sterile
Answer:
a. miniscule
Explanation:
A microorganism that is smaller than a bacterium that cannot grow or reproduce apart from a living cell.
Viruses are really small, much smaller than cells described as miniscule. Therefore, the correct option is A.
They are so small – ranging from 20 to 300 nanometers in size – that they can only be seen under an electron microscope. These infectious organisms are composed of genetic material, either DNA or RNA, that is coated with an inhibitory protein. Their ability to invade host cells and control the cellular replication machinery increases their pathogenicity.
Many diseases can be brought on by viruses, including the common cold, influenza, COVID-19, and more serious infections. To create vaccinations, antiviral drugs, and public health measures to prevent outbreaks and protect world health, it is essential to understand how viruses work. The complexity of these small but powerful agents is still being uncovered by ongoing research.
Therefore, the correct option is A.
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U-Science-Gr8-Unit2-PBT-CBT (2020-21)
Question: 1-10
Different arrangements of atoms are shown in the figure below.
8
Key
. - hydrogen
O = oxygen
O carbon
8
Figure 1
Figure 3
808
ag
808
OS SO
ag
cs
os
808 308
80
808
as
80
Figure 2
Figure 4
Which figure represents a mixture?
Figure 1
Figure 2
Figure 3
Figure 4
Answer:
Figure 3
Explanation:
A mixture is a substance made up of two or more different kind of atoms arranged in such a way that they are not chemically linked or joined. This accounts for the reason a mixture can be separated easily. In the figures attached as an image in this question:
- Figure 1 represents an element because it is made up of only hydrogen atoms chemically bonded together to form a molecule.
- Figure 2 represents a compound because it contains hydrogen and carbon atoms chemically joined together.
- Figure 3 represents a MIXTURE because it contains the oxygen and carbon atoms, which are not chemically joined to one another. As seen in the image, the oxygen atoms are not joined to the carbon atoms.
- Figure 4 represents a compound because it contains oxygen and hydrogen atoms chemically bonded together.
What is the locomotary organ of paramecium?
Select all the correct answers. Blue jays and crows eat caterpillars and mice. If the number of blue jays increases, what are the two likely effects on other populations? The number of crows will increase. The number of mice will decrease. The number of mice will increase. The number of caterpillars will decrease. The number of caterpillars will increase.
Answer:
there will be less caterpillars , crows, and mice
Explanation: the increase in bluejays will hunt more mice and caterpillars which will leave less food for crows causing them to move
Environmentalists agree we must stop using coal powered plants. Which of the following causes the most concern about the impact of coal on the environment?
A. Leaks during mining can cause spills that pollute the ocean.
B. Mining for coal requires digging deep into the earth’s crust, which may cause fracking.
C. Many coal plants have had accidents that released radiation into the air.
D. Coal mining and usage causes much water, land, and air pollution.
why is sun converted into chemical energy in the bonds of organic molecules?
Answer: The sun sustains all life on earth through photosynthesis, the process by which plants and other organisms convert the energy of sunlight into chemical energy, stored in the bonds of organic molecules. A central challenge of modern science is to replicate this process using synthetic catalysts, and thus produce solar fuels by artificial photosynthesis.
Explanation:
The cytoplasm in a single celled organism in the circulaatory System in the human both do what ?
Answer: Transport substances throughout an organism. The cytoplasm in a single celled organism and the circulatory system in a human both transports substances throughout an organism
Explanation:
What would happen in a cell if cellular respiration stopped?
A.) Glucose breakdown would stop
B.) ATP production would increase
C.) Oxygen consumption would increase
D.) Glucose breakdown would increase
Answer:
I think that glucose breakdown would stop or A.)
What do you notice about the ligands and their receptors in these images?
Answer:
What can be noticed about the ligands and their receptor is that the configuration of both coincide, as a key would with its lock, which demonstrates the specificity of a receptor by its ligand.
Explanation:
A ligand corresponds to a molecule considered a signal or a messenger, while the receptor is a protein on the cell surface, with the capacity to accept a ligand.
Ligands and receptors constitute pairs that complement each other, so that each receptor can bind to a specific ligand, similar to what happens with a key and a lock.
Once the ligand-receptor complex is formed, changes occur inside the cell, which define a certain effect.
True or False: Probability is a number that describes how likely it is that an event will occur.
Answer:
false
Explanation:
because the answer is false just took the test
what is the answer?
1. Apple is to pear as ? is to lime.
2. Tomorrow is to yesterday as ? is to past.
3. Kind is to evil as ? is to merciless.
4. Strong is to powerful as ? is to important.
5. No is to yes as ? is to approve.
Explanation:
1. Apple is to pear as Lemon is to lime
5.No is to yes as Disagree is to Approve
(Those are the only ones I can think of rn my brain is sort of fried and has been since August)
Define anomaly (don't just copy down what's on the website; define. Google if you have to) I need help, it’s for apes
Answer: something that deviates normal
Explanation: I know because I study anomaly
An anomaly is something different, something that is not normal
Dog gametes contain 33 chromosomes. What is the genetic content of a dog body cell?
Answer:
If a dog's gametes have 33 chromosomes, the somatic or body cells have a genetic content of 66 chromosomes.
Explanation:
Gametes are the sex cells of sexually-reproducing organisms, with the characteristic of being haploid, that is, their genetic content is reduced by half. Unlike gametes, somatic or body cells contain the complete charge of chromosomes, so they are called diploids.
If the genetic content of a dog's gamete is 33 chromosomes, its body cells must have twice as many, which means 66 chromosomes.
An additional note: a dog really has 78 chromosomes, so its gametes have 39 chromosomes.
1. Motivation is defined by psychologists as
an impulse to accomplish something of significance.
B) rigidly patterned behavior characteristic of all people.
C) a need or desire that energizes and directs behavior toward a goal.
D) the cause of behavior.
E) an external reward or goal that pushes a person toward accomplishments.
Answer:
C) a need or desire that energizes and directs behavior toward a goal.
Explanation:
Please help couldn’t find the answer
Answer:
can you please zoom in a little it's to blurry to read it
Fred wants to summarize mitosis in the cell cycle. Which statement describes mitosis
Answer:Mitosis is a process where a single cell divides into two identical daughter cells (cell division
Explanation:
Answer:
its b
Explanation:
3. Has the global human population always increased at the same rate? Explain.
In which type of natural selection is the average trait the least "fit" for the
environment? (Both extremes are more fit than the average)
Answer:
Survival of the fittest
Explanation:
Don't forget to give thanks and brainliest
HELP QUICK PLEASE
QUESTION IS IN IMAGE BELOW
Answer:
B
Explanation:
Need help with this
Answer:
mark most brainliest have a great day
Explanation:
Question 4 of 10
Which of these events could be a result of an error made during
transcription?
A. The next generation of the organism inherits the error
B. The mRNA produced has a different base sequence
C. A carbohydrate is produced instead of a protein
D. The gene used to produce the mRNA is altered
Answer:
B. The mRNA produced has a different base sequence
Explanation:
Transcription is the process in which mRNA is transcribed from DNA, which is then translated into a protein.
An error made during transcription does not alter the sequence of the DNA. Therefore, the gene itself is not altered and the error is not passed on to the next generation.
Carbohydrates are never produced by transcription and translation, which produce polypeptide chains which from mature proteins.
The allele for a widow’s peak has complete dominance over the allele for a straight hairline (w). What is the probability of two parents heterogeneous for a widow’s peak (Ww) having an offspring without a widow’s peak? 25 percent 0 percent 50 percent 75 percent
Answer:
25%
Explanation:
Cells from structure E and cells from structure Gare similar in that they
A)
have the same structure and function
B)
contain the same genetic material
C)
are identical in structure, but different in function
D)
contain only the genetic information needed for their specific job
Answer:
C: are identical in structure,but different in function
Cells from structure E and cells from structure G are similar in that they contain only the genetic information needed for their specific job, as in option D, where the genetic information expresses the traits of the cell.
What is the significance of the genetic information?It is very significant, and it is present in most all the living organisms, from the bacteria to the human, and it is crucial for the development, growth, and functioning of an organism and determines the characteristics and traits of the organism. It is inheritable, passed from the parents to the offspring, and allows for evolution and adaptation in the living organism.
Hence, cells from structure E and cells from structure G are similar in that they contain only the genetic information needed for their specific job, as in option D, where the genetic information expresses the traits of the cell.
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GroundWater is nearly impossible to find because... (support with evidence)
Answer:Because groundwater is a very plentiful source of fresh water, it must be a protected resource. In many areas, however, groundwater is not protected. Once an aquifer is contaminated with chemicals or petroleum, it is difficult, if not impossible, to clean up. Therefore, prevention of contamination is paramount.
Explanation:Plz mark me brainlest
How are photosynthesis and respiration related?
Function, Photosynthesis, Cellular Respiration, Significance, Considerations.
HOPE IT HELPS :)
Answer:
The products of photosynthesis are the reactants of cellular respiration; the products of cellular respiration are the reactants for photosynthesis.
Explanation:
Photosynthesis uses CO2, sunlight, and H2O to create glucose (C6H12O6) and O2. Cellular respiration uses glucose (C6H12O6) and O2 to create ATP (energy molecules), carbon dioxide, and H2O. One cannot exist without the other. They also help balance out CO2 and O2 levels in the atmosphere.
If the number of photosynthetic organisms on Earth decreased drastically, which would happen as a result?
Answer: More carbon dioxide gas would be found in the atmosphere.
Explanation:
Which of the following is not a function of the integumentary system? *
A(It forms a barrier to protect your body.
B(Regulates body temperature.
C(Eliminates waste.
D(Movement
Answer:
D(Movement
Explanation:
The integumentary system, which includes the skin, protects the body and regulates temperature/homeostasis. It also eliminates small amounts of waste, but it does not aid in movement directly.
Fermentation is a chemical reaction that occurs in the
Choose...
. Because it is
Choose...
, fermentation
Choose...
oxygen. Compared to cellular respiration, lactic acid fermentation generates
Choose...
ATP and is less efficient.
Answer:
Fermentation is a chemical reaction that occurs in the
cytoplasm .
Because it is
aerobic
, fermentation
does not require
oxygen. Compared to cellular respiration, lactic acid fermentation generates
much less
ATP and is less efficient.
Explanation:
Fermentation can be defined as a chemical reaction that typically occurs or takes place in the cytoplasm of both prokaryotic and eukaryotic living cells.
An anaerobic reaction refers to a biological and chemical reaction that doesn't require oxygen such as glycolysis and fermentation.
Hence, because fermentation is anaerobic; it does not require the use of oxygen.Compared to cellular respiration, lactic acid fermentation generates much less adenosine triphosphate (ATP) and is less efficient.During cellular respiration, more high-energy intermediates are generated that can be oxidized to make adenosine triphosphate (ATP) than are generated through lactic acid fermentation.
Generally, lactic acid fermentation is less efficient and it produces much less adenosine triphosphate (ATP) when compared with cellular respiration.
In conclusion, the most appropriate and correct word/phrase to fill in the blanks are:
1. Cytoplasm.
2. Anaerobic.
3. Does not require.
4. Much less.
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Suppose that a farmer wishes to start a you‑pick berry farm, where customers pick their own fruit from the berry bushes. In this variety of berry, the tall, thornless, and terminal flower phenotypes are produced by the s, t, and a alleles respectively. These phenotypes are recessive to the short, thorned, and axial flower phenotypes, which are produced by the S, T, and A alleles. The farmer has two berry plants. When selfed, the first plant produces tall, thorned plants with a mixture of axial and terminal flowers. The other plant produces a mixture of tall and short plants, which are all thornless and have terminal flowers. The farmer wishes to generate a pure‑breeding line of tall, thornless plants with terminal flowers, as such plants are most convenient for berry‑picking. What are the genotypes of the farmer's two original berry plants?
Answer:
The genotypes of the two original plants the farmer has are as follows:
Plant 1: ss,TT,Aa and Plant 2: Ss,tt,aa.
Explanation:
A genotype is literally the underlying makeup that will produce a result that is visible and measurable, that we know as phenotype. In this particular case, we have a farmer who wishes to establish his farm with a specific type of plant: one that is tall, thornless, and has terminal flowers because they are the best for berry-picking, and that is the business he wishes to establish.
In order to be able to obtain this type of plant, he needs to first count with a starting point, the parent plants from which he will be able to produce the line he wants to establish. But to do that he needs to first know the genetic makeup with which, when he crosses the plants, he will then obtain the phenotypical results he seeks.
The question itself tells us the types of alleles (which are, in simple terms, the holders of the genetic information), that produce the phenotypical characteristics of the plants the farmer has. So we know that there is one type of bush that is tall, thornless and has terminal flowers, and its alleles are s, t and a. The other bush has short, thorned and axial characteristics, and therefore its alleles are: S, T and A.
When the question then gives us the information about the resulting plants when the originals are selfed, and their characteristics, we are able to tell the genetic makeup, or genotype, of the original two plants the farmer has because we can combine the alleles mentioned given the characteristics (phenotypes) and thus obtain the two parent plants.
Answer:
The genotypes of the two original plants the farmer has are as follows:
Plant 1: ss,TT,Aa and Plant 2: Ss,tt,aa.
Explanation:
Hope this helps
Which of the following pairs are inaccurate?
O chromosomes
nucleic acids
O amino acids — proteins
O lipids – enzymes
O carbohydrate — energy
Answer:
The pairs that are inaccurate are lipids - enzymes (third option)
Explanation:
Enzymes are biological catalysts whose structure is formed by proteins, and for this reason there is no relationship between lipids and enzymes.
The biological function of enzymes is to accelerate biochemical reactions, reducing activation energy. As for the lipids, they are more related to other biological substances, the hormones.
As for the other options:
The chromosomes are formed by nucleic acids, specifically DNA. Amino acids form proteins. Carbohydrates are the main source of energy for living organisms.