Answers
Answer:
Graph A: Directional Selection
Graph B: Stabilizing Selection
Graph C: Disruptive Selection
Explanation:
Natural selection as a driving force of evolution cam be defined as a process that a population of organisms undergo in other to become adapted to an environment and survive to produce offspring that are fitter.
Thus, the following graphs represents the three types of natural selection:
Graph A: Directional Selection
Directional selection occurs when one extreme trait is favoured over others by selective pressures.
The graph shows that only one extreme trait is favoured as the population that survives seem to have majorly a particular extreme trait.
Graph B: Stabilizing Selection
In this type of natural selection, neither of the extreme traits are favoured by selective pressures. Therefore, intermediate trait become favoured over the other extreme traits.
Graph C: Disruptive Selection
Selective pressures works against the intermediate trait while both extreme trait at the spectrum are well favoured, which become more established in a population against the intermediate trait.
Related Questions
How is the energy of chemical processes coupled in metabolic pathways?
Answers
Answer:
Energetic coupling of chemical processes in metabolic pathways Biochemical systems couple energetically unfavorable reactions with energetically favorable reactions. These reactions can be part of catabolic pathways where complex substances are broken into simpler ones with the release of energy or anabolic pathways where complex molecules are synthesized with an input of energy.
Explanation:
Scientists build models based on what they know from previous research to derive testable hypotheses. Independently, both Watson and Crick and their competitor Linus Pauling constructed an incorrect triple helix model with the nitrogenous bases arranged so they were on the exterior of the molecule and the phosphate groups on the interior. Although their model was wrong, what assumption made it reasonable to build a model with the bases projecting to the outside
Answers
Answer:
Nitrogenous bases contain the genetic information, their amount is variable among different species, and the arrangement of these bases is also variable among different species
Explanation:
Both Watson-Crick and Pauling's DNA models considered that DNA nitrogenous bases (i.e., Adenine, Cytosine, Thymine and Guanine) contain the genetic information that determines the characteristics of living organisms. Moreover, both DNA models also considered that nitrogenous base composition varies between species, as well as the arrangement of these bases in the DNA chain also varies between species. Based on these features, Linus Pauling considered that a model where nitrogenous bases would be arranged on the outside of the DNA molecule would be easier for the DNA molecule to be replicated, transcribed, or repaired. Although incorrect, Pauling's DNA triple helix model was fundamental to develop the helical (double-stranded) structure of DNA, which was finally discovered by Watson and Crick in 1953.
Woodpeckers and squirrels fight for nesting rights in the same holes and spaces in trees, while the lions and cheetahs of the African savanna fight for the same antelope and gazelle prey. Which of the following statements about these relationships is accurate?
A. These are examples of competition because the organisms are fighting for resources.
B. These are examples of predation because the organisms are trying to take each other’s food and homes.
C. These are examples of predation because lions and cheetahs eat woodpeckers and squirrels.
D.These are examples of competition because no organisms are helped or harmed.
Answers
Answer:
a
Explanation:
both of the cases the organisms are fighting for a resource
A. These are examples of competition because the organisms are fighting for resources.
How Competition and predation are two different types of relationships ?Competition and predation are two different types of relationships that can exist between different organisms in an ecosystem. Competition occurs when two or more organisms are fighting for the same resources, such as food, water, or shelter.
This can occur within or between different species. In the example given in the question, woodpeckers and squirrels compete for nesting rights in the same holes and spaces in trees, while lions and cheetahs compete for the same antelope and gazelle prey.
On the other hand, predation occurs when one organism (the predator) hunts, kills, and consumes another organism (the prey). This type of relationship is often seen between carnivores and herbivores, or between animals and insects. In the example given in the question, lions and cheetahs are predators that hunt and consume antelope and gazelle prey.
It is important to note that in both competition and predation, one organism may benefit while the other is harmed.
For example, in predation, the predator benefits by getting food while the prey is harmed by losing its life. In competition, one organism may gain access to the resources while the other loses out, which can affect their ability to survive and reproduce.
Learn more about predation at:
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On the graphs, the dashed line represents the original population, and the solid line represents the population after natural selection has taken place. A population of snails is going through disruptive selection as it relates to their shell patterns. Which graph represents the population? A B C D
Answers
About the question: You will find the graphs in the attached files
Answer:
Graph C is the one that represents the snail population after disruptive selection.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Answer:
C
Explanation:
I took the test
Which statement describes an advantage of sexual reproduction over asexual reproduction?
A. Sexual reproduction results in more genetic variation in organisms than asexual reproduction.
O
B. Sexual reproduction requires more time to produce organisms than asexual reproduction.
C. Sexually produced offspring are more dependent on their parents for survival than offspring produced through asexual reproduction.
D. Sexually produced organisms are more dependent on other organisms for reproduction than offspring produced through asexual reproduction.
Answers
Answer:
I think the answer is A sexual reproduction results in more time to produce organisms than asexual reproduction.
Answer:
1
Explanation:
Which of these islands would likely have the most species diversity.
A small island in the middle of the ocean
O A large island near the mainland
Answers
Answer:
A large island near the mainland
Explanation:
A large island has a greater number of species, a greater interaction between them and a greater number of natural elements. All of this is capable of promoting biological specialization on a large scale, allowing new species to emerge more quickly than on a small island. Although a small island may also have great biodiversity, that island has fewer factors that promote the creation of new species, in addition to having fewer species interacting and creating new species.
What might happen to the salinity of the ocean if animals were no longer living in it?
Answers
The salinity of the ocean and oceanic animals are not related. Living organisms are not the cause of the salt in the ocean, so if they no longer lived there would be no change.
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION
Answers
Answer:
A biomass
Explanation:
Hopefully this should be it ive learned this in 9th grade
Answer:
Biomass energy
Explanation:
Biomass energy is energy generated or produced by living or once-living organisms. The most common biomass materials used for energy are plants, such as corn and soy, above. ref: https://www.nationalgeographic.org/encyclopedia/biomass-energy/#:~:text=Biomass%20energy%20is%20energy%20generated,heat%20or%20converted%20into%20electricity.
So when they are burned they all relate to combustion. The other three are different things. tidal energy comes from waves of water, hydro energy also comes from water, wind energy is from wind
The image below shows a type of mutation called a(n) _________.
Answers
Answer:
deletion
Explanation:
2. Two organisms would be most closely related if both have the same classification in which of the following groups?
A. Kingdom B. Phylum C. Class
D. Species
Answers
Answer: D. Species
Explanation:
Species is a group of population in which organisms have many common characteristics and they are capable of interbreeding and producing viable fertile offsprings. The members belonging to the same class and phylum have less common characteristics if they interbreed they may not produce viable fertile offsprings. Also, the organisms of the same kingdom have least common characteristics and will not have viable fertile offsprings after interbreeding.
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Answers
Answer:
I don't understand the question you sent me
Line B in the given graph represents the reaction with an enzyme added to substrates. How did the enzyme affect the reaction?
Answers
Answer:
a. lower activation level
Explanation:
So who wins the game of life?
Answers
Answer:
Me.
Explanation:
Answer:
god
Explanation:
because God created all so for me it will be god
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Answers
Answer:
on what question should i help u with?
Explanation:
Consider a population that contains black and white cats where the black allele (B) is dominant and the white allele (b) is recessive. Indicate whether each statement is true or false.
1. Evolution is occurring in a population of cats where the genotype frequencies of BB, Bb, and bb are 0.64, 0.32, and 0.04, respectively.
2. A population of cats is in Hardy-Weinberg equilibrium when the genotype frequencies of BB, Bb, bb are 0.49, 0.33, and 0.16, respectively.
3. Evolution is occurring in a population of cats where the genotype frequencies of BB and Bb are 0.7 and 0.2, respectively. _____
4. A population of cats is in Hardy-Weinberg equilibrium when the genotype frequencies of BB and Bb are 0.25 and 0.5, respectively. _____
Answers
Answer:
what is this what subject
Laying eggs belong to which category of energy use? Maintenance, waste production, movement, growth and reproduction
Answers
Answer:
I HOPE IT WILL HELP U
Explanation:
Majority of the people in the poorest regions of the tropics rely on poultry production as their major source of protein supply. However, poultry production is hindered by the harsh environmental conditions in this regions therefore, reducing the daily supply of protein. It is believed that understanding heat stress in birds by paying detail attention to the sources of heat generation in a poultry house can help manage the heat stress situation in this region. This text reviews the internal climatic conditions of the poultry houses, how the birds respond to them, and their implications for heat management in poultry production. Thus, it provides pertinent information for guidance on parameters for open poultry houses architectural design that ensures optimum climatic conditions that will alleviate heat stress problem in poultry production in hot and humid climate.
Which organism described below makes its own food?
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Answers
Explanation:
everything else finds or eats food that was made otherwise.
I need help with this problem please the sooner, the better. Thanks
Answers
Answer:
1=3
2=8
3=11
4=55
Explanation:
what is an example of a transform boundary? I WILL GIVE YOU THE BRAINLIEST!!!!
Answers
In the Arctic, seals are one of the main sources of food for polar bears. As global warming melts polar ice, fewer seals can be found in the Arctic. As a result, polar bears will —
A. maintain a constant population.
B. decrease in number.
C. migrate to tropical regions.
D. increase in number.
Answers
Decrease in numbers, because of their lack of a food source.
Answer:
Decrease in number.
Explanation:
They have less food and they will not be able to survive without food.
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Cladograms are diagrams that can be used to show evolutionary relationships between different species. The diagram below is a cladogram of four plant groups.
According to the diagram, which pair of groups diverged most recently?
A. conifers and ferns
B. conifers and mosses
C. flowering plants and ferns
D. flowering plants and conifers
Answers
Answer:
D
Explanation:
it is at the highes point in the cladogram
Answer:
The answer is D. floweringplants and conifers
Explanation:
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Question:
Using a specific example, discuss the importance of electrons in the transfer of energy in living systems.
Answers
Answer: The transfer of energy in the form of electrons allows the cell to transfer and use energy in an incremental fashion. The principle electron carriers are NAD+ and NADH because they can be easily oxidized and reduced, respectively.
Explanation:
Electrons are very significant in the steps of energy transfer in the living body cells.
When the electrons are displaced from the molecule it gets oxidized which results in a reduction in the potential energy.
Electrons transfer is very important because most of the power is stored in the atoms in the form of electrons that are required for cell functioning.The chief electron transporters are NADH and NAD⁺ they reduce and oxidizes the compounds.NAD⁺ is oxidized and NADH is the reduced form of the molecules.The living structures cannot save a large amount of energy and hence they collect them in the form of ATP and electrons.To learn more about the importance of electrons in living organisms follow the link:
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Answers
Answer: 1. Its Structure. The ATP molecule is composed of three components. ... These phosphates are the key to the activity of ATP. ATP consists of a base, in this case adenine (red), a ribose (magenta) and a phosphate chain (blue). 2. Adenosine 5'-triphosphate, or ATP, is the principal molecule for storing and transferring energy in cells. It is often referred to as the energy currency of the cell and can be compared to storing money in a bank. 3. All living things use ATP. In addition to being used as an energy source, it is also used in signal transduction pathways for cell communication and is incorporated into deoxyribonucleic acid (DNA) during DNA synthesis. 4. All living things use ATP. In addition to being used as an energy source, it is also used in signal transduction pathways for cell communication and is incorporated into deoxyribonucleic acid (DNA) during DNA synthesis. 5. Adenosine Triphosphate is a nucleotide molecule with three phosphate groups joined in a row. ... When the third phosphate group is broken away from the ATP molecule, the stored energy is released. This, smaller amount of energy can then be safely used in other cellular reactions of life processes. ATP (adenosine triphosphate) has three phosphate groups that can be removed by hydrolysis to form ADP (adenosine diphosphate) or AMP (adenosine monophosphate). The negative charges on the phosphate group naturally repel each other, requiring energy to bond them together and releasing energy when these bonds are broken. 5. These three phosphate groups are linked to one another by two high-energy bonds called phosphoanhydride bonds. When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP). 6. When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP). ... This free energy can be transferred to other molecules to make unfavorable reactions in a cell favorable. the first box is called energy added and the second box towards the questions is energy released. brainliest?
Explanation:
3. What happens if the re-uptake transporter is blocked?
Answers
Answer:
It would result in augmentation of conduction of nerve impulse at those synapse.
Explanation:
Reuptake is one of the method of removal of neurotransmitters from the synaptic cleft. During reuptake, neurotransmitters are actively taken back into the neurons that released them.
Which set of sex chromosomes do females have
Answers
Explanation:
females have the set XX and males have XY
Females have a set of two X chromosomes
8. Which statement correctly describes one way ocean currents affect a region?
Deep ocean currents push into estuaries, creating sand deposits that form barrier
islands.
Cold ocean currents along the equator increase evaporation rates, creating circular
winds that produce tropical storms.
Warm ocean currents keep coastal air temperatures warm, creating moderate
climate conditions in coastal regions.
D. Deep ocean currents move water from polar seas toward the equator, creating drafts
of cold air that blow over polar regions.
O more
Answers
Answer:
sorry i don't know
Explanation:
Which statement correctly describes one way ocean currents affect a region?
Deep ocean currents push into estuaries, creating sand deposits that form barrier
islands.
Cold ocean currents along the equator increase evaporation rates, creating circular
winds that produce tropical storms.
Warm ocean currents keep coastal air temperatures warm, creating moderate
climate conditions in coastal regions.
D. Deep ocean currents move water from polar seas toward the equator, creating drafts
of cold air that blow over polar regions.
O more
Climate change can alter where species live, how they interact, and the timing of biological events, which could fundamentally transform current ecosystems and food webs. Evaluate each of the changes that can occur within an ecosystem . Select ALL of the changes that could be caused by rising temperatures.
Answers
Answer:Answer is A) B) C) D)
Explanation:
We have that the functions of Temperature rise are
Acidification of OceanThe local weather exchange influences the timings of herbal activitiesMigration Entirely leaving of that ecosystem behindFrom the question we are told
Climate change can alter where species live, how they interact, and the timing of biological events,
which could fundamentally transform current ecosystems and food webs.
Evaluate each of the changes that can occur within an ecosystem .
ClimateGenerally these are changes that can occur within an ecosystem
Acidification of Ocean Food cycle is distructuredInvasive Species.The local weather exchange influences the timings of herbal activities There is a drastic enlarge of most important producers in Oceans like Cyanobacteria.Migration Entirely leaving of that ecosystem behindTherefore
We Find that
Acidification of OceanThe local weather exchange influences the timings of herbal activitiesMigration Entirely leaving of that ecosystem behindAre all functions of Temperature rise
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Explain the differences between Earth’s crust, mantle, outer core, and inner core.
Answers
Answer:
Earth's crust is the coldest Earth layer. Rock makes up the mantle and crust. The Outer core is liquid and the inner core is solid.
Explanation:
Outer and Inner core are both are made mostly of iron, with a little nickel and some other chemical elements.
The____ of an ecosystem is based on wheather the population in the system destorys the natural resources of the system
Answers
Answer: immense
immense in the blank
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