Ecosystems comply with the law of conservation of mass and energy, with matter cycling within and energy flowing through trophic levels. Only 10% of energy transfers between trophic levels, the rest changes form, mainly to heat, upholding the law of conservation of energy and limiting the length of food chains.
The ecosystem adheres to the law of conservation of mass and the law of conservation of energy, two fundamental principles in physics. According to the law of conservation of mass, mass is neither created nor destroyed in a closed system. In an ecosystem, this translates to matter cycling through living organisms (biotic components) as well as the physical environment (abiotic components), with the total amount of matter remaining constant over time.
In terms of energy flow, ecosystems follow the first law of thermodynamics, which dictates that energy can neither be created nor destroyed. Energy enters the ecosystem primarily through sunlight, which plants convert into chemical energy via photosynthesis. This stored energy is then passed along the food chain through various trophic levels, from producers to herbivores to carnivores. However, only about 10% of the energy at one trophic level is transferred to the next; the remainder is expended through life processes or lost as heat.
This apparent discrepancy does not violate the law of conservation of energy because the 'lost' energy is not destroyed; it merely changes form, primarily into heat, which dissipates into the environment. This inefficiency in energy transfer explains why food chains rarely extend beyond four or five trophic levels, as there simply isn't enough energy to sustain higher levels.
any easy way to remember about different tissues?? ...?
In mitosis what percentage of dna comes from the parent
What type of cross produces a 1:1:1:1 phenotypic ratio?
The 1:1:1:1 phenotypic ratio is produced by crossing heterozygous individuals with a recessive homozygous individual in a test cross, often used to determine the genotype of an individual with a dominant phenotype but unknown genotype.
A type of cross that typically produces a 1:1:1:1 phenotypic ratio is one involving two parents that are heterozygous for a gene with two alleles and are making a test cross with a recessive homozygous individual. For example, if a plant with the genotype RrYy (R for round seeds and Y for yellow seeds are dominant traits) is crossed with a plant with the genotype rryy (recessive traits for wrinkled and green seeds), the offspring will show a 1:1:1:1 ratio of these phenotypes: RrYy (round, yellow), Rryy (round, green), rrYy (wrinkled, yellow), and rryy (wrinkled, green). This kind of cross is used to determine the genotype of an individual expressing the dominant phenotype but has an unknown genotype.
which statement about dogs is NOT true?
A) All dogs belong to the same species.
B) All dogs belong to the same family.
C) All dogs are chordates
D) All dogs are mammals
Dude the answer is B
Jordan has an organic garden. He is designing an experiment to determine if a mineral-oil bug spray made of garlic and habanero peppers is more effective on Japanese beetles than one made with just garlic. How could Jordan improve his plan for the experiment as outlined below?
1. Prepare bug sprays—being sure to document ingredients in each type.
2. Determine which plants will be sprayed and section off two groups.
3. Spray every morning at 8:30 a.m.
4. Record number of beetles on each group at the same times every day.
5. Record significant rain or weather events that may affect application of the sprays.
6. Photograph damage on both groups of plants at the end of the trial.
a. He should account for all the beneficial insects he accidentally kills.
b. He should include a control group which receives no spray.
c. He should prepare several variations on each spray's recipe.
d. He should remove all living beetles after each counting.
Answer:
He should include a control group which receives no spray.
Explanation:
Final answer:
Jordan can improve his experiment by including a control group, preparing variations on each spray's recipe, and accounting for beneficial insects killed.
Explanation:
Jordan can improve his plan for the experiment by including a control group which receives no spray (option b). This will serve as a baseline to compare the effectiveness of the bug sprays. Additionally, Jordan should prepare several variations on each spray's recipe (option c) to ensure that any observed effects are due to the combination of garlic and habanero peppers, rather than individual factors. Lastly, Jordan should account for all the beneficial insects he accidentally kills (option a) to assess the overall impact of the bug sprays on the garden ecosystem.
Which structure is found mainly in green plants and bacteria?
A. Small vesicle
B. Lysosome
C. Cell wall
D. Mitochondrion
The answer is C, because the cell wall lets things come in and out and let in good things, as in green plants and bacteria!
Answer:
Cell wall
Explanation:
a p e x
7. How does wildlife rehabilitation veterinary medicine compare to traditional veterinary medicine?
8. How would wildlife rehabilitation veterinary medicine compare to veterinary medicine with exotic animals in a zoo?
Answer: Wildlife rehabilitation veterinary medicine can be used to help animals recover when ill. But traditional Veterinary Medicine is for diagnosing what's wrong, and then for surgery on pets or farm beasts.
Both wildlife rehabilitation and veterinary medication are geared towards bringing good health and wellness to the animals.
Explanation:
What instrument is used to measure barometric pressure?
A. ceilometer
B. barometer
C. anemometer
D. thermometer
approximately how long has the victim been dead if the body temperature was 33.1 deg. C? CSI class
In many texts, it's far set up that a victim's frame decreases in temperature via way of means of about 1. 5°F in step with hour. Hence, the sufferer has been lifeless for about thirteen hours and 19 minutes.
Using the method to calculate the time because of the demise of individual the usage of temperature :
Time because demise n=(98.6-frame temperature (°F ) ÷ TT = (1.5or * 3) relying on the ambient temperatureWhen ambient temperature <32; T=1.5 ; else T = 3.0Body temperature of im = 25.nine degrees * C =78. 62 °°FInputting the Values into the method:Time because eath = (98.6 - 78.62) / 1.5Time because = 13.32 hours (thirteen hours 19 minutes)What is body temperature?Body temperature is a degree of the way properly your frame could make and dispose of warmness. The frame is superb at retaining its temperature inside a secure range, even if temperatures out of doors the frame extrude a lot.
Therefore, the victim sufferer has been lifeless for about thirteen hours and 19 minutes.
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How many full-length strands of hair are collected from the scalp to use as a sample?
2
15
25
50
Answer:
the correct answer is D.) 50
A _______ is a kind of lipid that can store energy for a long period of time. These lipids are made up of long chains of carbon and oxygen atoms bonded to a backbone structure.
fat
protein
nucleic acid
carbohydrate
Fats are a class of lipids known as triglycerides.
Further Explanation:
The three main macronutrients of the body are carbohydrates, proteins, and fats. The macronutrients are molecules which are required by the body in large amounts. Fats are primarily composed of long chains hydrogen, carbon, and oxygen. They are hydrophobic in nature and are not soluble in water but are dissolvable in organic solvents. Fats are often used as a lipid synonym along with oils. Oils are generally liquid at room temperature due to the presence of unsaturated fatty acid chains whereas, fats appear to be solid at room temperature.
Fats have both metabolic and structural functions. They necessary in the diet as they can store energy most efficiently and for a long duration of time. When the energy is required, these stored fats are broken down into smaller particle through lipases which are formed in the pancreas.
Fats can be grouped as saturated and unsaturated fats. The fat molecule in which the double bond is absent between the adjacent carbons in the chain is called saturated fats. The presence of one or more double bonds is a characteristic feature of unsaturated fats. Some fats have a large number of double bonds and hence are called polyunsaturated fats.
The arrangement of saturated fats is closely packed, so they remain intact and are observed as solid at room temperature. For example, the content of saturated fatty acid in animal fat is very high and they remain as solids. Olive oils have more unsaturated fatty acids and therefore remain in liquid form. Fats act as both the energy storage material in the body as well as the energy source of the body. The breakdown of fats results in the formation of fatty acids and glycerol. The glycerol is then converted into glucose which is used as the energy source.
Learn More:
Learn more about primary succession https://brainly.com/question/1386621 Learn more about energy storage https://brainly.com/question/523624 Learn more about transfer RNA https://brainly.com/question/236807
Answer Details:
Grade: High School
Subject: Biology
Chapter: Fats
Keywords:
Fats, proteins, carbohydrates, macronutrients, lipids, triglycerides, oils, hydrophobic, unsaturated fats, saturated fats, polyunsaturated fats, lipases, glycerol, fatty acids.
Fat is the answer. I know because I have this question on my online quiz and it shows me the answers
A high school biology teacher asks her students to collect daily rainfall amounts at each of their homes during the summer. The results will be collected and used to establish a baseline for local weather patterns. What one aspect of the data gathering should the teacher emphasize most to the class?
...?
d. using a standard unit of measure for the duration of the study
Which of these is a characteristic of body cells that require large amounts of energy?
The characteristic of body cells that require large amounts of energy is they have numerous mitochondria. The correct option is a.
What is energy?Energy is an entity that is required by organisms and everything for motion and energy and other activities. Cells require energy to carry out the processes of metabolic.
Both plant and animal cells have mitochondria, a type of cell organelle. Since prokaryotic cells don't have cell organelles, they don't possess them. It is the main place that is used for energy synthesis.
Animal genetic material is found in cell organelles such as the mitochondria, endoplasmic reticulum, ribosomes, and nucleus because animal cells are multicellular.
Therefore, the correct option is a, they have numerous mitochondria.
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The question is incomplete. Your most probably complete question is given below:
They have numerous mitochondria.
They have a large number of Golgi bodies.
They have two nuclei.
They have a large number of ER.
Cells needing lots of energy possess abundant mitochondria which serve as energy producers.
Mitochondria are organelles known as the power plants of the cell that produce energy. Cells requiring large amounts of energy, like sperm and muscle cells, have an abundance of mitochondria. Various cellular functions such as muscle contraction and digestion rely on energy consumption.
DNA remains in the nucleus. mRNA can travel in and out of the nucleus. Explain how the function of DNA and mRNA differs.
Final answer:
DNA resides in the nucleus as a permanent storage of genetic information, while mRNA serves as a temporary messenger that carries genetic instructions from DNA to the cytoplasm for protein synthesis. This process begins with transcription in the nucleus and is followed by translation in the cytoplasm.
Explanation:
The function of DNA and mRNA differs in their roles in the process of protein synthesis. DNA contains the genetic blueprint of an organism, serving as a permanent, stable storage of genetic information. It is located in the nucleus of eukaryotic cells, and it doesn't leave this protected area. On the other hand, messenger RNA (mRNA) acts as an intermediary that carries genetic instructions from DNA to the cytoplasm, where proteins are synthesized by ribosomes.
During the process called transcription, an mRNA molecule is created using one strand of DNA as a template in the nucleus. This involves the matching of RNA nucleotides to DNA nucleotides based on the base-pairing rules: A with T (or U in RNA) and C with G. After transcription, the mRNA passes through the nuclear membrane into the cytoplasm. There, during translation, the information carried by mRNA is used to assemble the correct sequence of amino acids and produce proteins. This flow of information from DNA to RNA to protein is a central principle in molecular biology, known as the central dogma.
The endosymbiotic theory helps to explain the origin of which structures?
The endosymbiotic theory explains the origin of mitochondria and chloroplasts in eukaryotic cells. Initially proposed by Lynn Margulis, this widely accepted theory posits these organelles originated from engulfed prokaryotic cells that evolved symbiotically within a eukaryotic host over time.
Explanation:The endosymbiotic theory, initially proposed by Lynn Margulis in the 1960s, is an important concept in biology that explains the origin of essential organelles within eukaryotic cells - mitochondria and chloroplasts. According to this theory, these organelles originated from prokaryotic cells that were engulfed by a eukaryotic cell in a cooperative, mutually beneficial arrangement. Over time, the once-independent cells evolved together to form a single, composite entity, forming the structure of the eukaryotic cell we study today.
Widely accepted genetic evidence supports this theory. Both mitochondrial DNA and chloroplast DNA closely mirror their bacterial counterparts in DNA sequence and chromosome structure, though somewhat reduced as some genes have transferred to the host cell's nucleus. The binary fission of these organelles also differs from eukaryotic mitosis, closely resembling bacterial binary fission instead.
Furthermore, modern biology provides examples of this phenomenon continuing to occur. Certain insects, such as cockroaches, have endosymbiotic bacteria within their gastrointestinal tracts, and photosynthetic bacterial-like organelles, known as plastids, are observed in various protists.
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What is a benefit of using renewable energy resources?
Clean fuel
Sustainable energy
Saves money
No pollution
Question 2
What is a possible cost of using nonrenewable energy resources?
Greenhouse gases
Less water pollution
Sustainable energy
Costs more money
Question 3
How can the carbon stored in plants reach the atmosphere?
Evaporation
Diffusion
Photosynthesis
Cellular Respiration
Question 4
Which list below describes a possib
Do moths build nests?
Once cells have specialized and are performing a specific function they cannot.
Check all that apply
Undergo cell division
Undergo differentiation
Become stem cells
Turn on all of the genes found in the nucleus
Answer:
The correct options would be
Become stem cells Undergo differentiation Turn on all of the genes found in the nucleusThe cell is said to differentiate when they grow and mature to perform a specialized function.
It can not re-differentiate into any other cell type. For example, muscle cell cannot differentiate into the blood cell.
In addition, the differentiated cell cannot convert back to the stem cell as stem cell is an undifferentiated cell which is capable of dividing and differentiate into another cell type.
Lastly, in a differentiated cell, only a specific set of genes are expressed. For example, in a sarcomere different set of genes would be expressed as compared to the genes expressed in a neuron.
Humans are the only species that can endanger another species. true or false.
Answer:
It is false
Explanation:
The main difference between stream pools and ponds is that stream pools _______.
Which of the following provide the most readily available energy? carbohydrates lipids nucleic acids proteins
Answer;
-Carbohydrates
Explanation;
-The body can store some of these fuels in a form that offers muscles an immediate source of energy. Carbohydrates, such as sugar and starch, for example, are readily broken down into glucose, the body's principal energy source. This is because carbohydrates take less energy to break bonds.
-Glucose can be used immediately as fuel, or can be sent to the liver and muscles and stored as glycogen. During exercise, muscle glycogen is converted back into glucose, which only the muscle fibers can use as fuel. The liver converts its glycogen back into glucose, too; however, it’s released directly into the bloodstream to maintain your blood sugar level.
The _____ root helps stabilize soil from erosion. A) Fibrous B) Taproot
Answer: A. Fibrous
A fibrous root is a root system that is found in the monocotyledonous plants. This root system forms extensive branching of the thin roots below the stem. This root system develop like a mat underground when the tree attains complete maturity, because of a mat like structure and strong holding capacity on the soil this root system helps in preventing the soil erosion.
Fibrous roots help stabilize soil from erosion because they grow in a network near the soil surface, holding onto the soil and preventing it from being eroded.
Explanation:The root that helps stabilize soil from erosion is the Fibrous root. Unlike taproots, which grow deep into the soil, fibrous roots are shallow roots that spread out near the surface of the ground. These fibrous roots grow in a network that holds onto the soil, preventing it from being washed away by rain or blown away by wind. By doing so, fibrous roots play a significant role in soil conservation and prevention of soil erosion.
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Carbohydrates, lipids, and proteins are types of carbon compounds that are broken down to produce
A.DNA.
B.ATP.
C.oxygen.
D.glucose.
Final answer:
Carbohydrates, proteins, and lipids are organic compounds that provide energy. When digested, carbohydrates are broken down to glucose for ATP production, while proteins and lipids also contribute to energy and various bodily functions. The correct answer to what these compounds are broken down to produce is B. ATP.
Explanation:
Carbohydrates, Lipids, and Proteins
Carbohydrates, lipids, and proteins are categories of organic compounds. These substances are critical for various functions within the body, including providing energy. Carbohydrates are typically the main source of energy, being broken down into glucose, which is then used in metabolic pathways to produce ATP (adenosine triphosphate), the energy currency of the cell necessary for proper cellular function. Unlike carbohydrates, which are broken down to glucose, proteins are not a primary energy source but provide amino acids to build the body's own proteins and help control body processes. Lipids, which include fats and oils, can also be broken down to release energy, serve as long-term energy storage, and play roles in cell membrane structure and function.
Therefore, when we discuss what these macronutrients are broken down to produce, the correct answer is B. ATP, as ATP is the molecule that provides energy for cellular activities. DNA, oxygen, and glucose are not the direct breakdown products of these macronutrients in the context of energy provision.
It is not completely accurate to say that organelles are floating freely in the cytosol. Why not?
What would most likely happen if an error occurred when RNA was receiving coding information?
Answer;
-Proteins would be formed incorrectly .
Explanation;
-The genetic code is the set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins (amino acid sequences) by living cells.
-The main function of RNA is to carry information of amino acid sequence from the genes to where proteins are assembled on ribosomes in the cytoplasm. This is done by messenger RNA (mRNA). A single strand of DNA is the blueprint for the mRNA which is transcribed from that DNA strand.
-Therefore; if an error occurred when RNA was receiving coding information, proteins would be formed incorrectly.
If errors happen when RNA receives coding info, we could see mutations in tRNA and rRNA leading to production of defective proteins or possibly no proteins. It could also cause the mRNA to initiate translation within the nucleus which could disrupt cell functions. Ultimately, these errors can cause significant biological issues if not corrected.
Explanation:If errors occurred during the process where RNA receives coding information, we would see several potential consequences.
Mutations in the transfer RNA (tRNA) and ribosomal RNA (rRNA), for example, could lead to the production of defective proteins or perhaps no protein production at all. This could drastically impact the functionality of a cell as proteins perform a wide variety of roles within a cell including building cellular structures, defending against viruses, and enabling chemical reactions (enzymes).
Incorrect information transfer could also potentially cause the mRNA molecule to stabilize and start the process of translation within the nucleus of the cell, rather than being transported out to the cytoplasm as normally expected. This unusual situation could potentially disrupt normal cell function. Additionally, initiation factors might not be able to bind to mRNA and the large ribosomal subunit may not be able to interact with mRNA transcripts. This would further disrupt protein synthesis.
These errors can ultimately lead to a variety of biological issues, such as genetic disorders, if not corrected by the cell's repair machinery.
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Amoebae move by
a. extending their cytoplasm.
b. whipping their flagella.
c. swimming.
d. beating their cilia.
Answer:
I Think its answer A
Explanation:
Amoebae use pseudopodia, In the case of an amoeba moving, it's cytoplasm flows forward to form a pseudopodium, then it evens back out. In order to eat, it will form two pseudopodia and wrap those around to meet each other, enclosing its food, then the cytoplasm evens out again.
Whats the difference between freshwater and saltwater?
What do these items have in common?
trees, contouring, terraces
rice farming
architecture
erosion control
paper manufacturing ...?
Answer: erosion control
Explanation:
Erosion is caused by a physical agent such as water, air or other. This results in the removal of the top layer of the soil.
Trees, terraces, contouring will control erosion. These will reduce the soil erosion by holding the soil.
These characteristics describe the _______________ of a cell.
A) Chromosomes
B) Mitochondria
C) Nucleus
D) Ribosomes
The answer is C simple.
what are the four nucleotide bases present in tRNA? do these bases differ from those found mRNA ?
Answer:
No, both the mRNA and tRNA have the same sequence of genetic material inside its structure, as the number and sequence of the nucleotide bases are same in both the molecules. But, there is a difference in there functionality,as the mRNA helps in the transcription process, while the tRNA is present in the ribosomes operating for the purpose of translation process.There are mainly four nucleotide bases present inside both the mRNA and tRNA molecule are as follows;Adenine,Guanine,Cytosine,Uracil.RNA(Ribo-nucleic acid)-The RNA contains a single stranded sequence of genetic elements which are unique to each cell or individual body.The RNA is basically composed through slicing of the DNA molecule into half. But, along with that the main difference between the RNA and DNA comes by the replacement of the nucleotide thymine in the DNA by the inclusion of the Uracil as the nucleotide. And along with that there is a difference between the sugar ribose inside the two molecules.