Evolution is change in a population over time and includes the gene pools of that population. How does biogeographic
isolation allow for the change of gene pools over time?
Biogeographic isolation affects the random changes that take place within gene pools.
Biogeographic isolation causes changes in gene pools that result from populations being separated.
Biogeographic isolation determines who will win competition for mates.
Biogeographic isolation determines the time that populations will breed.
Answers
Answer:
Biogeographic isolation causes changes in gene pools that result from populations being separated.
Explanation:
also known as b
Biogeographic isolation allows for the change of gene pools over time by causing changes in gene pools that result from populations being separated.
What is Biogeographic isolation?Biogeographic isolation refers to the physical separation of populations of a species by geographic barriers such as oceans, mountains, or rivers. When populations are isolated from each other, they are no longer able to interbreed, which means that genetic material cannot be shared between populations. Over time, each population will accumulate its own unique set of genetic variations due to mutation, genetic drift, and natural selection, which can lead to the development of distinct gene pools.
The longer the isolation persists, the greater the differences that will accumulate between the gene pools of the two populations. Eventually, if the populations come back into contact, they may be different enough that they are no longer able to interbreed and produce viable offspring, leading to the formation of new species. This process is known as speciation and is one of the ways in which biogeographic isolation can drive the evolution of life on Earth.
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Related Questions
Genes are located on
A. dna
B. Proteins
C. Rna
Answers
Answer:Dna
Explanation:
Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases. (medlineplus.gov)
Genomic imprinting may involve a single gene, a part of a chromosome, or a whole chromosome. Indicate if the following statements are true or false regarding this phenomenon
1. Genomic imprinting is permanent in the somatic cells of a given individual. _____________
2. Genomic imprinting is permanent and affects future generations. ____________
3. Methylation is the chemical change underlying genomic imprinting. _____________
4. If a gene is imprinted, the offspring can express both the maternal and paternal allele. _________
Answers
Answer:
1. True.
2. False.
3. True.
4. False.
Explanation:
A genome can be defined as the complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA).
Genome imprinting can be defined as an epigenetic biological process in which a genomic domain or genes of a living organism is marked biochemically with information that is related to parental origin. Thus, it is a non-Mendelian inheritance i.e genome imprinting is typically independent of Mendelian inheritance.
1. True: Genomic imprinting is permanent in the somatic cells of a given individual.
2. False: Genomic imprinting is permanent and affects future generations. It does not affect future generations because generally it is expressed in a parent of origin specific form.
3. True: Methylation is the chemical change underlying genomic imprinting.
4. False: If a gene is imprinted, the offspring can express both the maternal and paternal allele. It is independent of Mendelian inheritance.
Which of the following is true?
a. Blood glucose decreases to normal.
b. Blood glucose increases to normal.
c. Liver breaks down glycogen and releases glucose to the blood.
d. Liver takes up glucose and stores it as glycogen.
e. Pancreas releases glucagon.
f. Body cells take up more glucose.
Answers
Answer:
c. Liver breaks down glycogen and releases glucose to the blood.
Explanation:
Living system can be defined as the internal systems found in living organisms and how various materials are circulated inside organisms.
Generally, these living systems are self-organized life forms and are known to be very much interactive with their surroundings or environment. Also, living systems are dependent on the flow of information, matter and energy at various levels.
Some examples of living systems in organisms are respiratory system, nervous system, digestive system, and circulatory system.
Additionally, living systems comprises of the following components; cells, organs, muscle, tissues, blood, etc.
Organs can be defined as specialized body tissues united to perform specific functions in living organisms. Some examples of organs found in humans are brain, bladder, kidney, heart, intestine, eyes, lungs, liver, etc.
A liver refers to a large, essential organ that is reddish-brown in color which is used to synthesize proteins, secrete bile, and the detoxification of metabolites.
Glycogenolysis can be defined as a process which typically involves the breaking down of the primary carbohydrates (glycogen) present in liver into glucose so as to maintain blood glucose rates and provide necessary energy for living organisms.
Hence, the true statement is that liver breaks down glycogen and releases glucose to the blood.
In cats, coat color is determined by allelic variation at a single autosomal locus, with black fur dominant to white fur. Two heterozygous black cats are mated. What would be the probability of the following combinations of offspring in a litter of eight kittens?
a) All with black fur.
b) Five with black fur and three with white fur.
c) At least three of the kittens having white fur.
d) The firstborn kitten with white fur, and among the remaining seven kittens, three with black fur and four with white fur.
Answers
Answer:
Explanation:
Two Heterozygous Black cats mated
let 'B' be for the Black allele and 'b' for the white allele
hence the mating will be : Bb * Bb = BB , Bb , Bb, bb, BB, Bb, Bb, bb
a) Determine the probability that all kittens out of 8 kittens are black
That means the kittens will have 'BB' or 'Bb' alleles
probability of Black fur = 3/4
b) probability of 5 black and 3 white
probability of black = 3/4
probability of white = 1/4
hence probability of 5 black = 3/4 * 5 =
What is the purpose of natural selection?
Answers
Answer:
The purpose of natural selection is not a conscious or intentional one, as it is not driven by a specific goal or purpose. Instead, natural selection is a fundamental process in biology that acts on heritable traits within populations over generations. It is a key mechanism of evolution.
Explanation:
The primary outcome of natural selection is the adaptation of organisms to their environment. Individuals with traits that are advantageous in a particular environment are more likely to survive, reproduce, and pass on those beneficial traits to their offspring. Conversely, individuals with traits that are disadvantageous are less likely to survive and reproduce, leading to a reduction in the frequency of those traits in the population over time.
Natural selection, therefore, acts as a filter that shapes the characteristics of populations, favoring traits that enhance an organism's survival and reproductive success in a given environment. Over many generations, this process can lead to the development of new species or the modification of existing ones, as populations accumulate adaptations that allow them to thrive in different ecological niches.
It's important to note that natural selection does not have an end goal in mind, nor does it necessarily lead to the "best" or most advanced organisms. Instead, it is a consequence of the interactions between organisms and their environment, constantly shaping and refining the traits of living beings based on their ability to survive and reproduce.
decoding car t cell phenotype using combinatorial signaling motif libraries and machine learning
Answers
The statement "decoding CAR T cell phenotype using combinatorial signaling motif libraries and machine learning" is true.
Chimeric аntigen receptor (CАR) costimulаtory domаins derived from nаtive immune receptors steer the phenotypic output of therаpeutic T cells. A librаry of CАRs contаining ± 2300 synthetic costimulаtory domаins, built from combinаtions of 13 signаling motifs. These CАRs promoted diverse humаn T cell fаtes, which were sensitive to motif combinаtions аnd configurаtions.
Neurаl networks trаined to decode the combinаtoriаl grаmmаr of CАR signаling motifs аllowed extrаction of key design rules. For exаmple, non-nаtive combinаtions of motifs thаt bind tumor necrosis fаctor receptor-аssociаted fаctors (TRАFs) аnd phospholipаse C gаmmа 1 (PLCγ1) enhаnced cytotoxicity аnd stemness аssociаted with effective tumor killing. Thus, librаries built from minimаl building blocks of signаling, combined with mаchine leаrning, cаn efficiently guide the engineering of receptors with desired phenotypes.
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which is odd one sun, apple tree, frog, fish
Answers
Answer:
Sun.
Explanation:
It's the one giving the energy, not receiving it.
similar between skin cell and fat cell
Answers
Answer:
Initial Vision Step Location
Dipin Ghimire
1. Where does the initial step in vision occur? Optic nerve Ganglion cell Retina OVisual cortex
The initial step in vision occurs in the retina, which is a layer of tissue at the back of the eye that contains light-sensitive cells called photoreceptors. When light enters the eye, it is absorbed by the photoreceptors, which convert it into electrical signals. These signals are then transmitted to other cells in the retina, such as ganglion cells, which transmit the signals to the brain via the optic nerve. The visual cortex, which is located in the brain, processes these signals to create the visual images that we see.
Dipin Ghimire
similar between skin cell and fat cell
Both skin cells and fat cells are types of cells that are found in the human body. Some of the similarities between these two types of cells include:
Both skin cells and fat cells are made up of cell membranes, cytoplasm, and nuclei.
Both types of cells contain organelles such as mitochondria, ribosomes, and endoplasmic reticulum.
Both skin cells and fat cells are capable of dividing and reproducing to maintain the integrity and function of the tissues in which they are found.
Both skin cells and fat cells are essential for the proper functioning of the body and play important roles in maintaining health and well-being.
PLEASE HELP DUE SOON! IM SO CONFUSED!
Write a brief story about Timmy, who accidentally walked into a rose bush, describing the reflex arc in biology 30 level detail.
Answers
When Timmy steps on the rose bush, the sensory receptor on his toe receives the stimuli, sends it the spinal cord through a sensory neuron which they initiates a response sent through a motor neuron to the muscle and he withdraws his leg in pain.
What is a reflex arc?A reflex arc refers to the neuronal pathway which controls a reflex action.
A reflex action is an action which occurs involuntarily.
Examples of reflex actions include thhe following:
withdrawing the foot quickly when one steps on a sharp objectwithdrawing the hand quickly when one touches a hot surfacethe je_rking of the kneecoughing or sneezing, when irritants enter the nostrils.Reflex actions do not need to involve the brain, hence they occur very quickly.
The path of a reflex arc begins with a sensory receptor which receives the stimuli, travels to the spinal cord through a sensory neuron which they initiates a response that is sent through a motor neuron to an effector such effector such as a skeletal muscle.
In conclusion, a reflex arc is the path of a reflex action through the body.
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Evaluate the biodiversity of the two ecosystems present below.
Ecosystem A: 100 organisms are present, consisting of 25 different species. The species are evenly distributed.
Ecosystem B: 100 organisms are present, consisting of 10 different species. One of the species accounts for 80% of the organisms present.
Which ecosystem has the higher biodiversity?
Answers
Answer:
A
Explanation:
A more diversity by the amount of species and even distribution of said species.
Which of the following statement is true about recombinant DNA
Answers
Answer:
It combines genes from two different organisms.
why bone grow in bidirectional
Answers
Explanation:
Bones grow in different directions because they need to support the body in different ways. The different directions allow for flexibility and strength.
El Ninos tend to result in cooler,wetter conditions across Texas.Which is likely to occur in Texas during El Ninos
Answers
El niño causes a drop in temperatures and increases in rainfall across Texas.
What is El niño?The unusual warming up of the surface of the water in the eastern tropical region of the Pacific ocean is termed El niño. El niño is a phase of the phenomenon called the El niño Southern Oscillation (ENSO).
El niño is the warmer phase of this phenomenon. The cool phase of the ENSO phenomenon is called the La niña. It results in the cooling of the regions of the water's surface.
El niño impacts the currents of the oceans starting from Australia to Southern America. It is an irregular event and can happen once from two to seven years.
Therefore, in texas, it results in a drop in temperatures and increases in rainfall.
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I don't really know how to do this , does anyone know ?
Answers
Answer:
area A
Explanation:
area b floor is being protected by grass, shrubs and trees, holding the soil in place with their roots.
also, area a has sabd, which washes away in water Easter than soil.
. If Haily is analyzing samples of chromosomes under a microscope which feature would help her categorize the different samples? A. Genetic makeup B. Arm length C. Shape D. Centromere placement E. None of the above
Answers
Answer:
B. Arm length
C. Shape
D. Centromere placement
Explanation:
Cytogenetics is a discipline that study the structure and number of chromosomes including their morphology, position of the centromere, arm length, staining bands, etc. These features can be observed by microscope and enable us to identify different genome rearrangements (i.e., translocations, deletions, centric fusion, chromosome duplications, etc.) by ilustrating chromosomes in defined pictures referred to as karyotypes. In consequence, they are chromosome features that can be used in order to categorize different samples.
Which was present in the unknown? starch lipids nucleic acids proteins
Answers
To test for the presence of starch, you can use iodine solution, which turns blue-black in the presence of starch. Lipids can be identified using a Sudan III or Sudan IV test, where lipids will appear as red or orange-stained spots.
Nucleic acids can be detected through tests like the diphenylamine test or the biuret test.
The diphenylamine test produces a blue color in the presence of DNA, while the biuret test results in a purple color in the presence of RNA.
Proteins can also be identified using the biuret test, as proteins will cause the solution to turn purple.
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Which statement best describes why a carbon can form a wide variety of organic compounds
Answers
Describe two ways that humans influence the cycling of matter in ecosystems.
Answers
Explanation:
Two important ways by which humans have affected the carbon cycle, especially in recent history, are: 1) the release of carbon dioxide into the atmosphere during the burning of fossil fuels, and 2) the clearing of trees and other plants (deforestation) that absorb carbon dioxide from the atmosphere
A patient drops off a written prescription for "glucose test strips for #100, test QD,
for non-insulin dependent diabetes (E11.9)" with PRN refills for one year. Based
on this information, can you bill this prescription to Medicare Part B?
O Yes
O
No
Answers
Based on the provided information, it is not possible to determine whether the prescription can be billed to Medicare Part B or not.
Medicare Part B is a component of the United States government's Medicare program, which provides medical insurance coverage to eligible individuals. Part B primarily covers outpatient services, including doctor visits, medical supplies, and certain prescription medications. However, not all prescriptions are automatically covered under Medicare Part B.
To determine whether a specific prescription can be billed to Medicare Part B, several factors come into play. These include the coverage policies and guidelines set by Medicare, which outline the specific criteria for reimbursement. Medicare Part B generally covers medications that are deemed medically necessary for the treatment of a condition or illness.
The decision to bill a prescription to Medicare Part B depends on various factors such as the specific coverage policies and guidelines set by Medicare, the medical necessity of the prescribed item, and the individual's eligibility for Part B benefits.
Therefore, it is not possible to bill this prescription to Medicare Part B.
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1.La energía es la capacidad de un cuerpo para producir trabajo.
2.La energía se clasifica solamente en renovables.
3.Las ondas se pueden propagar en un medio o un espacio vacío.
4. Las ondas se pueden clasificar en longitudinales y transversales.
5. La energía cinética es aquella que se encuentra en movimiento.
6. El núcleo de la Tierra está formado
por metales, principalmente hierro y níquel, y en menor
cantidad por azufre y oxígeno.
7. La corteza terrestre está compuesta por rocas
8. La contaminación se puede
definir como la presencia o acumulación de sustancias en el medio ambiente
que afectan negativamente el entorno.
9. Los elementos de la tabla periódica se clasifican de acuerdo con sus propiedades y características
similares.
II. Escoge
1. Son fuentes de energías renovables:
2. Son fuentes de energías no renovables:
3. Partes de las ondas:
15. La ciencia que estudia los seres vivos es:
16. En la biotecnología se incluyen las áreas de:
17. Consiste en la liberación de sustancias químicas a la atmósfera que alteran su composición.
18. Se debe a la presencia de desechos en el agua. La contaminación de mares, ríos y lagos se produce por
las actividades del ser humano.
19. Se debe a la acción humana (los residuos y la basura arrojada en cualquier superficie terrestre).
20. Cuando el contaminante es una sustancia química que procede normalmente de los usos industriales.
21. Surge con la emisión de fluidos a elevadascontaminación.
22. La actividad humana produce mucho ruido, y los altos decibelios en un determinado lugar por encima de sus niveles naturales marcan la contaminacion.
Answers
Answer:
La actividad humana produce mucho ruido, y los altos decibelios en un determinó do lugar por encima de sus niveles naturales marcan la contaminación.
Explanation:
Creo que es la respuesta
using the five senses to study something
Answers
Sight, hearing, smell, taste, and touch are the five senses that make up the human body.
Humans use their sensory organs to experience their five senses. These sensory organs include the tongue and nose for taste, the eyes for sight, the ears for sound, the nose for scent, and the skin for touch. Each sense serves to aid human perception of the outside world so that we can decide what is happening and what is required at the time.
There are certain persons who are less able than others to detect their surroundings. Despite having a condition like blindness or deafness, people can still have rich, fulfilling lives. According to research, persons who really are blind or optically challenged have heightened sensitivities in other areas. There are several sign languages available for non-aural communication.
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Only 1 out of 100 sea turtles survives it to adulthood. From the moment they hatch, sea turtles must strive for survival. They race across the beach and battle the waves moments after their birth. Throughout this time, predators are stalking them for an easy meal. Some sea turtles are faster than others.
Answers
Only 1 out of 100 sea turtles survives it to adulthood. From the moment they hatch, sea turtles must strive for survival. They race across the beach and battle the waves moments after their birth. Throughout this time, predators are stalking them for an easy meal. Some sea turtles are faster than others. This statement is TRUE about turtles.
About TurtlesTurtles are a type of reptile animal whose habitat is in all the oceans in the world. This reptile is one of the endangered fauna.
Sea Turtles Have Been on Earth for Millions of Years.
Turtles are very old animals, they have lived on earth for more than 110 million years. Sea turtles have the advantage of remaining resilient to climate change. This is what makes turtles not extinct until now. The upper part of the turtle's body is protected by a shell called the carapace. Turtles are different from tortoises, they cannot hide their heads and feet inside the shell. This also makes them more vulnerable when dealing with predators.
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The graphs below show the energy changes as proteins are broken down by pepsin enzymes.
energy
barrier
free energy
reactants
O A
O
E.
AG
products
course of reaction
energy
barrier
reactants
Graph 1
Which of the following best describes the graphs above?
NE
course of reaction
Graph 2
AG
products
Graph 1 shows a reaction without an enzyme because the activation energy is lower than in Graph 2.
Graph 1 shows a reaction with an enzyme because the activation energy is higher than in Graph 2.
O c
Graph 2 shows a reaction without an enzyme because the activation energy is higher than in Graph 1.
OD Graph 2 shows a reaction with an enzyme because the activation energy is lower than in Graph 1.
Answers
Answer:
What is your question here?
Explanation:
How can algal blooms be
harmful to an aquatic
environment?
A. by blocking all sunlight and killing the bottom plants
causing no oxygen to go into the water
B. by putting oxygen up into the air for the
surrounding plants
C. by absorbing the phosphorus in the atmosphere and
having a symbiotic relationship with cyanobacteria
Answers
Answer:
(A) By blocking all sunlight and killing the bottom plants
causing no oxygen to go into the water
What are your thoughts on extraterrestrial life in our galaxy/universe?
Do you think there is life elsewhere? Where might we find it?
What might that life look like, or how might it be different from what we know?
Would it be primitive or developed/intelligent?
Would that other life form try to explore the galaxy/universe or find other life forms like us?
Answers
Answer:
Yes I do indeed believe in aliens of extraterrestrial life
Question 5 Multiple Choice Worth points)
(06.03 LC)
Four locations on Earth receive sunlight at different angles. At which of the following angles will the intensity of sunlight received be the least?
90°
75°
50°
25°
Answers
The answer is 25 degree, because when the sun is directly overhead, its rays strike the earth at a 90 degree angle. The closer to 90 degrees the rays are, the more concentrated they are and the greater is the heat they produce on the earth's surface. The solar heat reach the surface of the earth becomes less intense as the angles of the rays decreases.
Answer:
d. 25°
Explanation:
Okay so basically locations on earth only receive sunlight at one line of latitude and the most you can get is 90° is out of these four options 25° was the least
I need help asap!
Which of the following is the result of the sun unevenly heating air in the atmosphere and water in the ocean?
A weathering and erosion
B conduction, convection, and radiation
C wind and ocean currents
my Brain is blank… I need help asap
Answers
I gotchu, the answer is b. conduction, convection, and radiation! (hope it's right)
Answer: b
Explanation:
\The data in the table were recorded during an investigation in which a paramecium was placed in a hypertonic salt solution.
A 2-column table labeled Paramecium Contractile Vacuole Contractions has 5 rows. The first column is labeled salt concentration outside paramecium with entries very high, high, medium, low, very low. The second column is labeled contractions per minute with entries 2, 8, 15, 22, 30.
Which statement correctly describes the bars on a bar graph representing the data?
The graph has five bars of equal height.
The bars range from tallest for very high concentration to shortest for very low concentration.
The bar for very low concentration is twice the height of the bar for medium concentration.
The bar for very high concentration is five times the height of the bar for very low concentration.
Answers
The table Paramecium Contractile Vacuole Contractions which correctly describes the bars on a bar graph representing the data is the bars range from tallest for very high concentration to shortest for very low concentration.
The data in the table records the number of contractions per minute of a paramecium's contractile vacuole in response to different salt concentrations in the surrounding environment.
A bar graph representing this data would have five bars, one for each level of salt concentration.
The bars would vary in height according to the number of contractions per minute, with the tallest bar representing the highest salt concentration and the shortest bar representing the lowest salt concentration.
Therefore, the correct statement describing the bars on the bar graph would be: "The bars range from tallest for very high concentration to shortest for very low concentration."
This statement accurately describes how the height of the bars would vary based on the data in the table.
The other statements do not accurately represent the data or the trends observed in the table.
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1. Based on your graphs, what relationships do you notice between temperature, dew point, humidity, cloud cover, and air pressure? Provide evidence of your conclusion.
2. In conclusion, how did your graphs support or contradict your 12-hour forecast for the following day?
3. Describe additional data you could collect to make your forecast more reliable.
graphs:
Answers
Since there is no graph shown, here is some possible outcomes:
1. Temperature and dew point are inversely related. This means that as temperature increases, dew point decreases. Humidity and dew point are directly related. This means that as humidity increases, dew point increases. This is because humidity is a measure of the amount of water vapor in the air.
What is a graph?A graph is a diagram that shows the relationship between two or more sets of data. The data is represented by points on the graph, and the relationship between the data is represented by the lines that connect the points.
2. My graphs supported my 12-hour forecast for the following day. The temperature and dew point were both increasing, which indicated that the air was becoming warmer and more humid. This is consistent with my forecast of increasing cloud cover and precipitation.
3. There are a few additional pieces of data that I could collect to make my forecast more reliable. These include:
The amount of precipitation that has fallen in the past 24 hours.The direction and speed of the wind.The presence of any high or low pressure systems.The temperature and humidity of the air at different altitudes.Learn more about graph on https://brainly.com/question/19040584
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Which of the following statements apply to organs? (Choose all that apply)
Organs are organized into an organ system.
An organ specializes in a common task and function.
All animals are made of tissue which then becomes organs.
Tissue comes together to form organs.
Answers
Answer:
I believe all of these are correct.
Explanation:
A is correct is because- Organs are grouped into organ systems.
B is correct because- Organ's work together to carry out a particular function for the organism.
C is correct because- A tissue is a group of connected cells this makes up all the organs, structures
D is correct- Cells make up tissues, tissues make up organs
Hope I helped you out. I'm sorry if I didn't.
Answer: Tissue comes together to form organs.
Organs are organized into an organ system.
An organ specializes in a common task and function.
These are the correct answers. A is incorrect!
Explanation:
I took the test...