There are amino-acids, they differ only in the R group that represents the __________________.
A
parallel chain
B
main chain
C
side chain
D
opposite chain
Answer:
parallel chain is the answer
Please Help No Random Answers.
Jeff has 10 grams of water and 10 grams of vegetable oil in separate containers. Both liquids have a temperature of 24°C. Jeff heats both liquids over a flame for five minutes. When he’s finished, he discovers that the temperature of the oil increased more than the temperature of the water. What can Jeff conclude from this experiment?
The temperature of the oil increased more than the temperature of the water because vegetable oil has a lower heat capacity than water.
Heat capacity is the ratio of heat absorbed to temperature change by a material. Typically, it is stated in terms of calories per degree. Oil can hold more heat than water. Compared to water, oil can be heated to high temperatures more quickly with a significantly lower energy input because it has a lower heat capacity than water..Oil transfers heat to food more gradually to a fixed temperature than water does. Oil can be heated to a higher temperature than water when it is in a liquid state.Hence, the correct option is D.
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Non-recombinant
chromosomes
1.) What do the labels above represent? (for example: capital "A" versus lower-case "a", and
the different letters "A or B or C"?
2.) The crossing-over (regional exchange of genetic information) occurs between homologous
chromosomes. WHY is it critical that only homologous chromosomes exchange information?
3. Why is it important that crossing-over takes place between the chromosomes from two
different parents? (answer on back).
The labels above represent different alleles of genes located on chromosomes. It is critical that only homologous chromosomes exchange information during crossing-over because homologous chromosomes have similar genes in the same order.
The labels above represent different alleles (versions of a gene) that are located on the chromosomes. Capital letters represent dominant alleles, while lower-case letters represent recessive alleles. Different letters represent different genes, and their locations on chromosomes are also different.
It is critical that only homologous chromosomes exchange information during crossing-over because homologous chromosomes have similar structures and genetic content, making it possible for them to align and exchange segments of DNA. If non-homologous chromosomes were to exchange information, the resulting genetic material would be unstable and could lead to genetic disorders or other problems.
It is important that crossing-over takes place between chromosomes from two different parents because it increases genetic diversity in offspring. Each parent contributes one set of chromosomes, and crossing-over allows for the exchange of genetic information between these sets, leading to new combinations of traits. This is important for the survival of a species as it enables adaptation to changing environments and increases the chances of finding new beneficial traits.
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Does a dog have a internal organization
Answer:
Yes, dogs do have a internal organization
Explanation:
(division of labour)
100 POINTS)Which change is an environmental effect of building dams?
A) increased fertility downstream
B) weed growth upstream
C) sediment builds up downstream
D) increased water temperature upstream
Answer:
weed growth upstream
Explanation:
When dams are build up on a river the water at upstream rises .
Buliding dams also have some other side effects like dieing of fishes ,quick floods etc .
Option B
Post-translational modifications of proteins may include which of the following processes?
Post-translational modifications of proteins makes them functional and include:
methylationaddition of disulphide bridges folding phosphorylation What is post-translational modification of proteins?Post-translational modifications of proteins refers to modifications that are made on new synthesized proteins after synthesis at the ribosomes.
Post-translational modifications of proteins are important as they help to convert the proteins into their active forms.
Some post-translational modifications of proteins include:
methylationaddition of disulphide bridges folding phosphorylationTherefore, post-translational modifications of proteins are required to make proteins functional.
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What social and environmental factors affect human population size?
Answer:
Many factors influence the size of a population. Food, water, shelter, predation, and density are all things that can allow a population to grow or cause it to decline.
Hope it helped! :)
Do plants take in air with their roots?
Answer:
No
Explanation:
No, plants do not take in air with their roots. Roots are designed to absorb water and minerals from the soil. In order to get the air and carbon dioxide they need for photosynthesis, plants have specialized structures called stomata in their leaves and stems that allow air to enter and exit. These stomata regulate the movement of gases into and out of the plant, so the plant can take in the carbon dioxide it needs and release the oxygen it produces.
How does Kinetic energy and how does it relates to diffusion and temperature.
HURRY HELPPP!!!!!!!!!!!!!!!!!!!
Explanation:
Diffusion is directly proportional to the Kinetic energy possessed by the particle.
More the Kinetic energy, more the energy.
Temperature directly influences the Kinetic energy -- or energy of motion -- of the molecules in a fluid. Molecules with greater Kinetic energy diffuse faster; in other words, the rate of diffusion increases as Kinetic energy increases.
Particles in all state of matter are in constant motion and this is very rapid at room temperature. A rise in temperature increases the Kinetic energy and speed of particles; it does not weaken and forces between them. The particles in solids vibrate about fixed positions; even at very low temperatures.
Which scenario is most likely to cause changes in allele frequencies in two populations of the same species?
Answer:
Predators are present in one population but not in the other.
Explanation:
My interpretation of the question is what situation would cause differences in allele frequencies between the two populations. If predators are present in only one of the two populations, then the safety of that population will be more threatened. While the other population's allele frequencies may remain unaffected, this population's allele frequencies will adjust according to which genotype a predator is most likely to act upon.
Definition activated by stalled replication or DNA damage initiates a number of DNA processes, some of which are error-free. allows DNA repair without template, with just a random incorporation of dNTPs. may cause errors but not detrimental.
Sanger method
RecA protein
Silent mutation
SOS repair system
RecA protein allows DNA repair without a template, with just random incorporation of dNTPs.
RecA protein catalyzes unidirectional branch migration, allowing for the completion of recombination and the production of an area of heteroduplex DNA with thousands of base pairs in length. RecA has an extra site for binding and hydrolyzing ATP because it is a DNA-dependent ATPase.
All bacteria that the RecA protein has been properly searched for, including Mycoplasma with its small genome, have been found to contain it. More than 60 bacterial species have had their recA genes sequenced.
RecA protein is in charge of recognizing DNA molecule homology and mediating the DNA strand exchange process that results in recombination intermediates.
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What is true about the relationship between cells and the organism they are part of?
Group of answer choices
Cells make up the basic structure of an organism, and they perform basic life functions for the organism.
Cells perform basic life functions for the organism, but they do not make up the basic structure of an organism.
Cells make up the basic structure of an organism, but they do not perform basic life functions for the organism.
Cells do not make up the basic structure of an organism, and they do not perform basic life functions for the organism.
The true statement regarding the relationship between cells and organism is that cells make up the basic structure of an organism, and they perform basic life functions for the organism (option A).
What is a cell?A cell is the basic unit of a living organism, consisting of a quantity of protoplasm surrounded by a cell membrane, which is able to synthesize proteins and replicate itself.
A cell is the basic unit of every living organisms meaning that a performs the basic function of living organisms. For example, the photosynthetic ability of a cell is a function of the chloroplast in the cell.
According to the cell theory proposed in the 1890's, which is the scientific theory that all living organisms are made of cells as the smallest functional unit, the cell is the basic functional and structural unit of living things.
Therefore, it can be said that a cell is the basic functional unit of the cell.
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Put these in order from smallest to largest: neuron, cell, synapse
Answer:
, cell, Synapse, Neuron,
Explanation:
which of the following will an organism that is experiencing an elevated carbon dioxide concentration most likely do? (1 point)
The increase in concentration of CO₂ will leads to form low pH of water because CO₂ is a acidic oxide.
What is acidic and basic?Any material with a pH value between 0 and 7 is known to be acidic while a pH value between 7 and 14 is a base. whereas, bases are ionic compounds that produce hydroxide ions when dissolved in water.
Is Rice acidic or basic?Normally, the pH value of rice is within the range of 6 to 7 pH, though it can vary with different types. For instance, white rice has a pH of 6 to 6.7, brown rice has a pH of 6.2 to 6.7 and wild rice has a pH of 6 to 6.4.
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What are the forms of potential energy that can be used by a cell
Answer:
Adenosine triphosphate
If you wanted you duplicate conditions in a laboratory that produced metamorphic rocks what would you need to do
Apply high pressure to the rock. Apply high temperature to the rock. Apply high temperature and pressure to the rock.
Ossification means
A) Bone fracture
B
Bone displacement
C Bone deterioration
D) Bone growth
Answer:
:the natural process of bone formation.
kim has a bag of yo-yos. Some of the yo-yos are red. The rest are yellow. The ratio of the number of red yo-yos to the number of yellow yo-yos is 5 : 9. If kim has a total of b yo-yos, how many more yellow yo-yos than red yo-yos are there?
Answer:
5 + 9 = total = 14
14 = total = b
5/14 of them are red 9/14 are yellow
yellow - red = 9 / 14b - 5 / 14b = 4 / 14b = 2 / 7b there are ( 2/7 ) b more yellow than red CAUSED apologiabiology .
Hope this helps ✌️
Answer:
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Describe the mechanism of glycolysis in detail
The process of Glycolysis is a catabolic process in which two molecules glucose goes through a ten- step pathway and yield two molecules of pyruvate . It is a major part of carbohydrate metabolism .
Mechanism Of Glycolysis
The glycolysis is also known as EMP pathway and it is involved in both aerobic and anaerobic conditions .There are two phases in the mechanism of glycolysis in which 5 reactions takes place in each phase and the process of glycolysis takes place in cytosol
Preparatory phase refers to the generation of two molecules of glyceraldehyde 3-phosphate from one molecule of glucose which further goes into the payoff phase . In this phase two molecules of ATP are used and two regulatory enzymes were involved in this reaction .
Payoff phase refers to the further break down of two molecules of glyceraldehyde3-phosphate to two molecules of pyruvate . In this phase four molecules of ATP and two molecules of NADH are generated . In this phase only one regulatory enzyme is involved which is the breakdown of PEP to pyruvate .
Both the phases of glycolysis takes place in the cytoplasm and there are three enzymes that involved in regulating the glycolytic pathway .This process is also known as the catabolic process .
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Which of the following is a premise that could lead to the conclusion that Lacl is a protein that represses the production of proteins in LacZ LacY and LacA
Answer: B
Explanation:
What is the overwhelming conclusion from the vast majority of trained experts who study climate change?
The world is warming because of us.
The world is not warming enough to be concerned about.
The effects of climate change will not be serious.
The world is warming because of natural cycles.
The overwhelming conclusion from the vast majority of trained experts who study climate change is that the world is warming because of us, meaning human activities are contributing significantly to the observed global warming trend.
What is Climate change?
Climate change refers to a long-term and significant change in the average weather patterns and temperatures of the planet. It is caused by a variety of factors, including human activities such as the burning of fossil fuels and deforestation, as well as natural phenomena such as volcanic eruptions and changes in the sun's energy output.
The overwhelming conclusion from the vast majority of trained experts who study climate change is that the world is warming because of human activities, particularly the burning of fossil fuels like coal, oil, and gas, which releases large amounts of greenhouse gases such as carbon dioxide into the atmosphere.
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is it important to have circulatory system for single cell or multicellular organism?
evolutionary significance of bryophytes
The bryophytes, which include mosses, liverworts, and hornworts, have significant evolutionary significance in the plant kingdom despite their relatively small size and simple structure, they played a crucial role in the colonization of terrestrial environments and the subsequent evolution of higher plants.
Here are some key evolutionary significance of bryophytes:
Adaptation to land: Bryophytes are considered some of the earliest land plants.
They were the first plants to transition from aquatic to terrestrial habitats, paving the way for the colonization of land by other plant groups.
They developed strategies to overcome challenges such as desiccation, limited nutrients, and anchorage to the soil.
Moisture retention: Bryophytes have adaptations that enable them to retain moisture.
They possess specialized structures, such as rhizoids and mucilage, that help absorb and retain water.
This ability to retain water and survive in relatively dry environments was an important adaptation for the conquest of land.
Soil formation: Bryophytes, especially mosses, contribute to soil formation.
They can grow on bare rocks and soil, where their rhizoids aid in weathering and breaking down substrates.
Their decomposed remains also contribute organic matter to the soil, enriching its fertility.
Habitat creation: Bryophytes provide habitat and microenvironments for other organisms.
Their dense mats or cushions create shelter, moisture, and temperature buffering for a variety of organisms, including insects, small invertebrates, and microorganisms.
They contribute to the overall biodiversity and ecosystem functioning.
Reproductive strategies: Bryophytes have unique reproductive strategies. They produce spores that can disperse and colonize new habitats.
Their reproductive structures, such as gametophores and sporophytes, exhibit various adaptations that allowed for successful reproduction in terrestrial environments.
Ecological indicators: Bryophytes are sensitive to environmental changes, making them valuable ecological indicators.
Their presence, abundance, and diversity can indicate environmental conditions such as air quality, moisture levels, and habitat disturbance.
Monitoring bryophytes can provide insights into the health and integrity of ecosystems.
Overall, bryophytes played a crucial role in the evolution and colonization of land by plants.
Their adaptations, ecological roles, and evolutionary history make them important subjects of study for understanding plant evolution, ecosystem dynamics, and the colonization of terrestrial environments.
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The bryophytes, which include mosses, liverworts, and hornworts, have significant evolutionary significance in the plant kingdom despite their relatively small size and simple structure, they played a crucial role in the colonization of terrestrial environments and the subsequent evolution of higher plants.
Here are some key evolutionary significance of bryophytes:
Adaptation to land: Bryophytes are considered some of the earliest land plants.
They were the first plants to transition from aquatic to terrestrial habitats, paving the way for the colonization of land by other plant groups.
They developed strategies to overcome challenges such as desiccation, limited nutrients, and anchorage to the soil.
Moisture retention: Bryophytes have adaptations that enable them to retain moisture.
They possess specialized structures, such as rhizoids and mucilage, that help absorb and retain water.
This ability to retain water and survive in relatively dry environments was an important adaptation for the conquest of land.
Soil formation: Bryophytes, especially mosses, contribute to soil formation.
They can grow on bare rocks and soil, where their rhizoids aid in weathering and breaking down substrates.
Their decomposed remains also contribute organic matter to the soil, enriching its fertility.
Habitat creation: Bryophytes provide habitat and microenvironments for other organisms.
Their dense mats or cushions create shelter, moisture, and temperature buffering for a variety of organisms, including insects, small invertebrates, and microorganisms.
They contribute to the overall biodiversity and ecosystem functioning.
Reproductive strategies: Bryophytes have unique reproductive strategies. They produce spores that can disperse and colonize new habitats.
Their reproductive structures, such as gametophores and sporophytes, exhibit various adaptations that allowed for successful reproduction in terrestrial environments.
Ecological indicators: Bryophytes are sensitive to environmental changes, making them valuable ecological indicators.
Their presence, abundance, and diversity can indicate environmental conditions such as air quality, moisture levels, and habitat disturbance.
Monitoring bryophytes can provide insights into the health and integrity of ecosystems.
Overall, bryophytes played a crucial role in the evolution and colonization of land by plants.
Their adaptations, ecological roles, and evolutionary history make them important subjects of study for understanding plant evolution, ecosystem dynamics, and the colonization of terrestrial environments.
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What was the climate like prior to the extinction ?
Answer:
The extinction you are referring to is unclear, as there have been several mass extinctions throughout Earth's history. However, it is generally accepted that climate has played a significant role in many of these events. Prior to some of the mass extinctions, such as the Permian-Triassic extinction and the Cretaceous-Paleogene extinction, the climate was warm and tropical with high levels of carbon dioxide in the atmosphere. This warm climate was likely a contributing factor to the extinction, as it may have led to changes in sea level, ocean circulation, and weather patterns that disrupted ecosystems and caused widespread extinction of species. However, it is important to note that climate is just one of many factors that can contribute to mass extinction events, and there are often multiple causes involved.
Vhich is an issue that governments must consider before passing conservation policies?
urbanization implications cost to implement conservation policies desertification implications cost to implement deforestation.
Explain TWO strategic ways employed by microbes of extreme environments that enable them withstand harsh environmental and physical conditions
Answer:
Explanation:
Some microbes are thermophiles and they can survive in area with high temperature between 45 -80°C, they are chemoautotroph in nature, oxidizing sulphur to products acids such as sulfur in the environment. This acid also help them to better adapt to the environment as many thermophiles likes acidic environment.
Thermophiles body has saturated and straight chain fatty acid that helps prevent denaturation which enables them grow and thrive in harsh weather condition by providing the fluidity that is needed in membrane function.
Thermophiles are also small in sizes this ensure there stability.
How is the nitrogen cycle important to humans?
A.It produces free nitrogen that humans can breathe.
B.It converts nitrogen into a form that humans can obtain by eating other organisms.
C. It produces nitrogen compounds that humans can breathe.
D. It converts nitrogen into a form that humans can obtain by absorbing it through their skin.
The nitrogen cycle is important to humans in the following way: it converts nitrogen into a form that humans can obtain by eating other organisms (option B).
What is the nitrogen cycle?Nitrogen cycle is the natural circulation of nitrogen in a series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition.
During the nitrogen cycle, atmospheric nitrogen is converted to nitrogen oxides by lightning and deposited in the soil by rain, where it is assimilated by plants and either eaten by animals (and returned as faeces) or decomposed back to elemental nitrogen by bacteria.
The usable form of nitrogen that is assimilated by plants becomes accessible to humans when they consume the plants, hence, depicting the importance of the nitrogen cycle.
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HELP ASAP
What factor would not affect the island lizard gene pool once they reached the mainland?
O New and diverse ecosystems
Major island storms
New populations of lizards to breed with
Separation from the island lizard population
Answer:
c new populations !
Explanation:
easy
Answer:
Major island storms
Explanation:
A dihybrid cross experiment is carried out in pea plants. The traits being observed are flower color and stem length. In the F2 generation, 81 plants have purple flowers and long stems, 27 plants have purple flowers and short stems, 27 plants have white flowers and long stems, and 3 plants have white flowers and short stems.
Which traits are recessive?
A.purple flowers, long stem
B.purple flowers, short stem
C.white flowers, short stem
D.white flowers, long stem
Answer:
c
just took test
Explanation:
white flowers, short stem
please help me with my biology
Answer:
purified water
Explanation:
Purified water is H2O which is hydrogen and oxygen, not carbon