A model of natural selection is shown here with a small beetle population. Some green beetles in the original population are shown as dying by predation. The resulting population several generations later is shown on the right. Which of these explanations should be selected to account for the changes in the population of beetles shown here?
Answers
The explanation which should be selected to account for the changes in the population of beetles in this scenario is that beetles with brown coloration survived with greater frequency in the original population, resulting in a greater frequency of brown beetles in subsequent populations which is therefore denoted as option D.
What is Population?This is referred to as the total number of organisms which are present in an area over a given period of time and is dependent on various factors such as environment etc.
In this scenario, beetles with brown coloration survived with greater frequency in the original population. This therefore led to them undergoing reproduction with the others who have such color in the ecosystem.
The result will therefore be a greater frequency of brown beetles in subsequent populations due to it being a dominant color thereby making it the correct choice.
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The options are:
A) Individual green beetles evolved to be less adapted, resulting in a change in allele frequencies in future generations.
B) Individual brown beetles evolved in the presence of the predator to be better adapted, making it more common in future generations.
C) Green beetles that survived the presence of the predator migrated to different populations, decreasing their frequency in the subsequent populations.
D) Beetles with brown coloration survived with greater frequency in the original population, resulting in a greater frequency of brown beetles in subsequent populations
Related Questions
compressive strength of our bones is important in everyday life. young's modulus for bone is about 1.4×1010pa. bone can take only about a 1.0hange in its length before fracturing.
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The compressive strength of our bones is crucial for everyday activities and overall skeletal integrity. Young's modulus, a measure of stiffness, for bone is approximately \(1.4 × 10^10 Pa.\)
This modulus indicates how much stress a bone can withstand before deforming. Bone can tolerate only about a 1.0% change in its length before fracturing, highlighting its limited elasticity. This means that excessive external forces or impacts can lead to bone fractures.
Maintaining bone health through proper nutrition, exercise, and avoiding excessive stress is important in preventing fractures and ensuring the structural integrity of our skeletal system for daily activities and overall well-being.
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List three possible interactions between a bee and its environment
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Explanation: 1. It’s not just farm-grown fruits and vegetables that rely on pollinators to thrive. Many species of wild plants depend on insect pollinators as well. Bees are responsible for the production of many seeds, nuts, berries, and fruit, which serve as a vital food source for wild animals.
2. During the first two weeks of life, worker bees are engaged in brood duties inside the hive: cleaning, fanning the air, building the honeycomb structure, feeding the young, and carrying out the dead bees. During the remaining five to seven weeks of their lives, workers become foragers. Some will focus on gathering pollen, which will be mixed with secreted wax for building the comb. Others will focus on gathering nectar, which will become honey after it is regurgitated at the hive.
3. Pollination is fundamental to sexual production in plants, and in bee-pollinated plants, it has resulted in plant-animal co-evolution. Nectar and copious pollen production are the cost to the plant for its services of the inadvertent pollinator. Most bees are pollinators and they are attracted to flowers for food.
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Bees usually pollinate plants by transporting pollen among different plants of different types to fertilize them, or even across multiple portions of the same plant to help in plant reproduction. Bees even aid in the survival of plants by preventing inbreeding.
What is pollination?Pollination is the method of transferring pollen grains from a flower's male anther to its female stigma.
Flowers depends on bees for pollination of the female plants. When bees rely on pollen, their bodies basically collect excess pollen via pollen-collecting hairs, which they then release when they sit.
Pollen is basically the flower's seed, which is required for the flower's survival.
Environmental factors affecting bees encompasses the interaction of bee diseases, the role of infirmity vectors as well as bee immunity, genetic diversity, beekeeping practices, and food resources, as well as general climate, weather, agricultural practices, and pesticide use.
Thus, these are some interactions between a bee and its environment.
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What are the two main components of the nervous system?.
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If a litter from a test cross (a crossing with a homozygous recessive, in this case, a fawn pug), produced a litter of 12 fawn puglets and 13 black puglets; what is Bobo Fett's (a black pug) genotype?
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If Bobo Fett were a homozygous dominant (GG), crossing him with a homozygous recessive (gg) would have produced only heterozygous offspring (Gg), making all the puglets black.
On the other hand, if Bobo Fett is heterozygous (Gg), then the crossing with a homozygous recessive (gg) can produce black heterozygous puglets (Gg), and fawn puglets, that are homozygous recessive.
Given that the litter has both colors of puglets, Bobo Fett is heterozygous.
which word best defines bilateral symmetry
Answers
Answer:
Explanation:
its a
An astronaut is planning a trip to a newly-discovered planet according to the law of universal gravitation, the astronaut weight in the new planet will be greater than his weight on earth if:
Answers
The new planet has more mass than Earth but the same radius. The mass of the astronaut will be calculated by the use of Newton's gravitational equation. The weight of the astronaut depends completely on its mass and the gravitational acceleration of the planet.
Gravitational acceleration is directly proportional to the mass of the planet and indirectly proportional to the radius of the planet. Hence, when the gravitational acceleration increases the planet's mass will increase therefore the radius will decrease. The astronaut's mass will depend on these factors.
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If a cell has a relatively high energy need, you would expect it to have _________ mitochondria than a cell with a lower energy need.
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If a cell has a relatively high energy need, you would expect it to have fewer mitochondria than a cell with a lower energy need. Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that provide the majority of the chemical energy required to fuel the cell's metabolic activities. Mitochondria are structures within cells that transform energy from meals into a form that cells can use.
Each cell includes hundreds to thousands of mitochondria, which are found in the fluid that surrounds the nucleus (the cytoplasm). Mitochondria (singular: mitochondrion) are a double membrane-bound organelle found in most eukaryotic species. They are present inside the cytoplasm and serve as the cell's "digestive system."
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7. Which of the following describes the distance covered by an object? A. 5 s B. 8 m C. 10 m/s D. 12 m, Northw ont travelled by an object?
Answers
Answer:
Since distance is measured in meters, the correct answer is B. 8m
Explanation:
A particular Fusarium fungus is a plant pathogen that causes the leaves on a corn plant to turn yellow and çauses the ears of com to rot before the corn can be harvested. One year, your entire corn field is lost to this fungus, with the exception of a single plant that appears to be resistant to the fungus. From the seeds of this plant, you are able to establish a true-breeding Fusariumresistant corn plant. You are interested if this resistance is due to a single gene. You cross your Fusarium-resistant plant to a Fusarium-sensitive one and find that all of the F1s are Fusariumsensitive. You cross Fusarium-sensitive F1s and observe the following F2s: F2s: 4400 Fusarium-sensitive 1624 Fusarium-resistanI You hypothesize that the Fusarium resistance is caused by a recessive allele of a single gene. In the next 9 questions (including this one), perform a Ch-squared Goodness of Fit test to determine if your data is consistent with your hypothesis. Q 1 of 9: How many Fusarium-sensitive plants would you expect in the F2s? 1218 3 of 4 1508 4526 4518 3300
Answers
The expected number of Fusarium-sensitive plants in the F2s is 1508.What is a Chi-square goodness of fit test?The Chi-square goodness of fit test is a statistical hypothesis test that assesses if an observed set of frequencies is different from a theoretical expected set of frequencie.
This test is utilized to find out whether the difference between observed and expected values is not just due to chance but due to significant differences between the two values.To test whether the Fusarium resistance is caused by a recessive allele of a single gene, a Ch-squared Goodness of Fit test is require.
.Here, we have,Fusarium-sensitive F2s=4400-1624=2776Fusarium-resistant F2s=1624Therefore,Total F2s=4400We hypothesize that the Fusarium resistance is caused by a recessive allele of a single gene.The expected ratio of resistant:sensitive plants in F2 generation is 1:3. the expected number of Fusarium-resistant plants is (1/4) x 4400 = 1100 and the expected number of Fusarium-sensitive plants is (3/4) x 4400 = 3300. Therefore, we would expect 3300 Fusarium-sensitive plants in the F2s.Answer: 1508.
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The fact that the body does not normally mount an immune response to the molecules in food is an example of ___.
Answers
The body does not normally mount an immune response to the food molecules due to Cell-Mediated Immunity which is a part of Humoral Immunity.
What is Cell-Mediated Immunity?
The cell-Mediated immune response involves the destruction of infected cells by cytotoxic T cells or the destruction of intracellular pathogens by macrophages.It does not involve antibody formation.It protects the body through T-cell mediated immunity, macrophages, and natural killer cells.The gastrointestinal immune system has the unique capacity to discriminate between harmless and potentially dangerous materials.Dietary antigens trigger the generation of a regulatory Treg cell type in the small intestine that suppresses immune response to food.
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What is skepticism?
a new scientific idea
being interested in new or different ideas
a general agreement among scientists about a scientific idea
the understanding that knowledge in a particular area can be uncertain
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An attitude of skepticism or a tendency to be skeptical, either generally or with regard to a certain object.
What is skepticism and why is it important?In order to be skeptical, one must refrain from leaping to conclusions when examining a claim or an explanation. In the course of a study, it enables scientists to take into account every scenario and rigorously examine all available data.Doubt, dubiety, mistrust, suspicion, and uncertainty are some typical synonyms for skepticism. While all of these terms refer to a "lack of sureness about someone or something," scepticism denotes a refusal to accept something without concrete proof.A sceptic is someone who thinks that some or all of human knowledge is illogical. Skeptics contend that it is preferable to suspend believing rather than rely on the disputed byproducts of reason because even our finest methods for learning about the universe occasionally fall short of full certainty.To learn more about skepticism refer to:
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Answer:
D
Explanation:
The understanding that knowledge in a particular area can be uncertain
An earthquake originated in New York State. The P-wave travel time for this earthquake was recorded in the data table below for four widely separated seismic stations, A, B, C, and D If the first P-wave arrived at seismic station A at 10hrs:22min:30sec, what was the origin time for the earthquake?
Answers
The provided question is incomplete as it lacks the essential information to give answer. however, the complete question is attached as image.
Answer:
The correct answer is option : c. 10hrs: 14min: 10sec.
Explanation:
The question provides the following information to answer the question:
The P wave takes time to reach Seismic station A = 8 min:20 sec
P-wave arrived at seismic station A at : 10hrs:22min:30sec
So, the origin time of earthquake would be: 10hrs:22min:30sec - 8 min:20 sec = 10hrs: 14min: 10sec.
Thus, the correct answer is : 10hrs: 14min: 10sec.
a dtc service, such as 23andme, indicates that jane has a snp that is a genetic risk factor for hypothyroidism. the snp has an odds ratio (or) of 1.5. the average population risk of developing hypothyroidism is 4%. based on this information, what is jane's overall risk of hypothyroidism?
Answers
The odds ratio (OR) for the SNP is 1.5. 4% of people in the population are at risk of getting hypothyroidism. According to this data, Jane's total risk of hypothyroidism is 6%.
When the thyroid gland is underactive or hypothyroidism, your body cannot produce enough thyroid hormones to satisfy its demands. The thyroid is a little gland at the front of your neck that resembles a butterfly. hypothyroidism hormone bioactivity may be impacted by single nucleotide polymorphisms (SNPs) in genes involved in thyroid hormone metabolism. Thyroid hormones (THs) attach to thyroid hormone receptors (TRs), which are nuclear hormone receptors. TRs function as ligand-activated transcription factors that bind to the target gene's promoters' cognate thyroid hormone response elements (TREs).
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3. A swamp ecosystem in Florida has alligators, turtles, boars, small and large Prish, aquatic birds, algae and patches of grasses. Based on the interactions that would accur between these organisms, which of the following will NOT limit the number of small fish in this swamp ecosystem?
A The number of aquatic plants
B. The number of turtles
C. The number of boars
D. The available water
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4.In what phase of mitosis do new nuclear envelopes form around the separated chromosomes
Prophase
Metaphase
Anaphase
Telophase
None of the above
Answers
Define homologous chromosomes.
Answers
Answer:
its one of two chromosomes of the same length and type inherited from a father or mother
Explanation:
:)
Answer:
Homologous chromosomes are made up of chromosome pairs of approximately the same length, position, and staining pattern. One homologous chromosome is inherited from the organism's mother; the other is inherited from the organism's father.
Explanation:
Hope this helps!
Out of these people who r ur favs?
WilburSoot
TommyInnit
Tubbo
Fundy
Sapnap
Dream
GeorgeNotFound
Quackity
Jschalt
Nikki
Ponk
Skeppy
BBH
Punz
aweSAMedude
HiBomb
TechnoBlade
Answers
Answer:
Well the people who are my favorites are Sapnap, Dream, GeorgeNotFound, Skeppy, BBH, and TechnoBlade.
purpled >:(((
but jschlatt because of his humor
The invaginations of the mitochondria, which increase the surface area of the inner membrane, are called.
Answers
Answer:
Crista/Cristae
Explanation:
The name is from Latin.It gives the inner membrane it's wrinkled shape which provides huge space for chemical reactions to occur on.
Please help me, it’s due tomorrow ☹️
Thank youuu sooo muchh
Answers
Suppose the mother and father are rabbits and the offspring are also rabbits. Let's consider two traits:
Trait 1: Fur Color - Black (B) is dominant, White (b) is recessive
Trait 2: Ear Shape - Long (L) is dominant, Short (l) is recessive
Mother: BBll (homozygous dominant for fur color, homozygous recessive for ear shape)
Father: BbLl (heterozygous for fur color, heterozygous for ear shape)
Punnett Square for Trait 1: Fur Color
B | B
b | b
B | b
b | b
All offspring are heterozygous for fur color (Bb)
Punnett Square for Trait 2: Ear Shape
L | l
l | l
L | l
l | l
All offspring are heterozygous for ear shape (Ll)
How to illustrate the informationBased on the information, the mother was homozygous dominant for fur color and the father was heterozygous, so all babies are heterozygous for fur color.
The mother was homozygous recessive for ear shape and the father was heterozygous, so all babies are heterozygous for ear shape.
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Which situation is the best example of translational motion? a ballerina standing on one foot a coin spinning on a desk a car in a parking lot with its engine running a leaf blowing across the field
Answers
Answer:
A leaf blowing across the field.
Explanation:
it is going from point a to point b.
Answer:
A leaf blowing across a field
Explanation:
It is following a path from point a to point b.
Name the two principles of Mendelian genetics: Principle of ______ and Principle of ______.
Answers
the principle of segregation
the principle of independent assortment
Which processes involve the production of identical daughter cells
Answers
Answer:
mitosis
Explanation:
mitosis is a cellular division that yields two daughter cells that are identical to parent cell.
In which cellular structure is plant waste stored?
cytoplasm
cell wall
cell membrane
central vacuole
Answers
Answer:
It's central vacuole.
Explanation:
Took the test.
Answer:
proof
Explanation:
Among the different forms of electromagnetic radiation emitted by the sun, which form is absorbed by plants for photosynthesis?.
Answers
Answer:
visible light is the em radiation absorbed by plants for the photosynthesis process.
The form of electromagnetic radiation that is absorbed by plants for photosynthesis is known as visible light. This is also known as photosynthetically active radiation (PAR).
What is Photosynthesis?Photosynthesis may be defined as a type of process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.
Visible light lies in the visible spectrum of wavelength from 400 to 700 nm. This visible spectrum is a system where we study the properties of light. This spectrum defines the relationship between energy and wavelength.
Therefore, the visible light or visible spectrum is the form of electromagnetic radiation that is absorbed by plants for photosynthesis.
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karp’s cell and molecular biology: concepts and experiments ninthedition by janet iwasa and wallace marshall
Answers
I apologize for the confusion, but the book "Karp's Cell and Molecular Biology: Concepts and Experiments" is not written by Janet Iwasa and Wallace Marshall.
The ninth edition of this book is authored by Gerald Karp, Janet Iwasa, and Wallace Marshall. The book "Karp's Cell and Molecular Biology: Concepts and Experiments" is a widely used textbook in the field of cell and molecular biology. It provides a comprehensive introduction to the fundamental principles and experimental techniques in these areas of study. The ninth edition includes updated content and incorporates recent advancements in the field.
With clear explanations and illustrations, the book covers a range of topics, including cell structure and function, molecular genetics, signal transduction, genomics, and developmental biology. It also includes various experimental approaches and techniques commonly used in cell and molecular biology research.
Overall, "Karp's Cell and Molecular Biology" serves as a valuable resource for students and researchers seeking a solid foundation in the field, combining theoretical concepts with practical experiments to enhance understanding.
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What is the hypothesis of abiogenesis?
Answers
Answer:
Explanation:
Abiogenesis, the idea that life arose from nonlife more than 3.5 billion years ago on Earth. Abiogenesis proposes that the first life-forms generated were very simple and through a gradual process became increasingly complex
Place the initial steps in the correct order, then identify the appropriate conditions that reflect the final result in this experiment designed to isolate revertants from a threonine auxotroph.
Answers
On medium deficient in that B acid, a mutation unable to synthesize that amino acid would not be able to develop (minimal media). Consequently, to identify such mutations,
How does reflect work?Brain activity is involved in the problem-solving reflective cognition process when one reviews each step that was taken. People search for the solutions that were used to solve the issue and repair it once more.
Concerning tothreonine auxotroph:It has been demonstrated that two Escherichia coli auxotrophic mutants build up substantial quantities of m o in the growth media. Alpha,epsilon-diaminopimelic acid (DAP) is defective in one mutant (13071), whereas DAP and methionine are both deficient in the other mutant (13070). l-threonine builds up by 13071 in an artificial media with xanthan gum as the fuel.
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2. What is the portion of DNA that contains information for the physical expression of a trait or characteristic?
Answers
help me please explain packaging of dna helix easily
Answers
Answer: DNA packaging is the method of folding the DNA molecule to fit into the nucleus of a cell. Chromosomal DNA packaged inside ultramicroscopic nuclei of a cell with the assistance of histones is named packaging of DNA Helix.
Explanation: search
Identical twins, who have inherited a gene associated with obesity, are adopted by different families. One is growing up in a very health-conscious family, while the other is growing up in a family that eats a lot of fast food and never exercises. Which statement describes their likely weights upon reaching adulthood?
A.
They will both be overweight because they both have the gene associated with obesity.
B.
They will both be of average weight because their genes will mutate as they grow and develop.
C.
The weight of the twins is difficult to predict because both genes and environmental factors affect weight.
D.
One twin will be overweight and the other will be of average weight, because they were raised in different environments.
Answers
Answer:
c
Explanation:
this statement is true and no matter what the genes say environmental parts play a huge role