He peppered moth provides a well-known example of natural selection. the light-colored form of the moth was predominant in england before the industrial revolution. in the mid-nineteenth century, a dark-colored form appeared. the difference is produced by a dominant allele of one gene. by about 1900, approximately 90% of the moths around industrial areas were dark colored, whereas light-colored moths were still abundant elsewhere. apparently, birds could readily find the light moths against the soot-darkened backgroun

Answers

Answer 1
The reason for the loss of color after the industrial revolution is that the light-colored moths were "selected against" by predators. These birds could only see the light ones against the newly dark, sooted background. Over time, these predators could no longer distinguish the dark ones from their natural dark, sooted background. Thus more light-colored moths stood out against the dark soot, and were eaten. And more dark-colored moths eluded the birds, survived to reproduce, passing on more of their dominant genes for dark color to their offspring. After several decades of hundreds of thousands of generations, most of the later generations were dark, due to selective advantage of camouflage to survive predation.
Answer 2

A. Dark moths had a survival disadvantage in industrial Dorset.


Related Questions

The movement of air pollutants via evaporation and winds from tropical and temperate areas to polar regions is referred to as ____.?

Answers

The Grasshopper Effect is due to diligent and unpredictable contaminations – including certain pesticides, mechanical chemicals and overwhelming metals – dissipate out of the dirt in hotter nations where they are as yet utilized, and go in the climate toward cooler regions, gathering out again when the temperature drops.

Air pollutants are the chemical and hazardous particles that contaminate the quality of the air and degrade it. The atmospheric air can get contaminated by human interference and many other reasons.

The grasshopper effect is the movement of air pollutants.

The grasshopper effect can be explained as:

It is a geochemical process that carries and transports the chemicals and pollutants from warm towards the colder regions of mountains and poles.

It is also called global distillation and is caused by the entrapment of the particles and pollutes that gets carried to the colder region by evaporation and winds.

Therefore, the correct blank is the grasshopper effect.

Learn more about the grasshopper effect here:

https://brainly.com/question/15276906

Alcohol will make it easy for you to feel as if you're __________ when you're not. A. crashing B. falling C. standing still D. impaired

Answers

The answer is b I think
B, falling when you are not

Rudolf is dealing with impending layoffs at work. yesterday, at a pharmacy, he measured his blood pressure and it was high. he also notices that when he thinks about the future, his heart rate accelerates. rudolf is demonstrating ________ symptoms of stress.

Answers

Physiological symptoms of stress

Stress plays aggravating role in diseases and it affects every parts of the body. Many emotional and physical disorders have been associated with stress including stroke, anxiety, hypertension, depression and many more. Stress symptoms can affect one’s health and can lead to other illnesses. For the question given above, Rudolf is demonstrating physiological symptoms of stress.






Identify the mechanism discussed below. The transfer of genes from one population to another Drives the changes that occur in populations A permanent change in the DNA sequence of a gene The random change in the frequency of an allele in a population

Answers

Answer:

B,D,A,C

Explanation:

The mechanism to the following statements are:

a. The transfer of genes from one population to another is gene flow.

b. Drives the changes that occur in populations are due to natural selection.

c. A permanent change in the DNA sequence of a gene is mutation.

d. The random change in the frequency of an allele in a population is genetic drift.

What is the variation?

Variation is the difference in DNA between individuals or between populations.

Mutation and genetic recombination, natural selection, genetic drift are all the many origins of genetic diversity.

Thus, the correct mechanism is a. gene flow, b. natural selection, c. mutation, d. genetic drift.

Learn more about gene flow, here:

https://brainly.com/question/17190749

Which gastrointestinal secretion has a component that is required for the intestinal absorption of vitamin b12?

Answers

Intrinsic factor (IF) is needed for absorption of Vitamin B12. IF is made by the stomach.

A 65-year-old client with a recent history of head trauma and a long-term history of hypertension presents to the emergency department due to changes in mental status. mri reveals that the client has experienced a subarachnoid hemorrhage. what is the most likely cause of this type of stroke? aneurysm

Answers

The answer to this question is "Aneurysm". 

To which reptiles, living or extinct, are crocodiles and alligators most closely related?

Answers

I think the answer is lizards

Final answer:

Crocodiles and alligators, which are part of the Crocodilia order, are most closely related to birds. Both are the only known living descendants of dinosaurs, with birds being descendants of dinosaurs that developed wings. Crocodilia originated around 84 million years ago, and their terrestrial ancestors appeared at least 220 million years ago.

Explanation:

Crocodiles and alligators are part of an order of large reptiles known as Crocodilia, which also includes creatures like caimans and gharials. These reptiles are most closely related to birds, which may seem surprising, but both groups are the only known living descendants of the dinosaurs. The ancestors of birds were actually dinosaurs that evolved wings and took to the skies. Hence, crocodiles and alligators look like they might be small dinosaurs because they share a common ancestry with these ancient creatures.

The Crocodilia lineage arose about 84 million years ago during the late Cretaceous period. Crocodilians are found in a variety of habitats in the tropics, such as rivers, lakes, and sometimes saltwater environments. They show diverse behaviors, including providing parental care, which is depicted in one example as the Siamese crocodile (Figure 15.43a). These reptiles spend substantial time in the water but also have the capacity for semi-erect locomotion on land. Among modern reptile orders, turtles originated around 250 million years ago, while ancestral crocodilians evolved at least 220 million years ago.

The relatively sudden appearance of many new species when niches and habitats are made available as a result of mass extinction

Answers

i think its adaptive radiation

The relatively sudden appearance of many new species when niches and habitats are made available as a result of mass extinction is adaptive radiation.

What is Adaptive radiation?

The evolution of a group of animals or plants into numerous forms that are adapted to different lifestyles is known as adaptive radiation. The strongest examples of adaptive radiations are seen in populations that are closely related and have only recently evolved.

A striking example is the evolution of primitive mammalian species into those that can run, jump, climb, swim, and fly starting in the Paleogene Period (66 million years ago).

The evolution of a group of animals or plants into numerous forms that are adapted to different lifestyles is known as adaptive radiation.

Therefore, The relatively sudden appearance of many new species when niches and habitats are made available as a result of mass extinction is adaptive radiation.

To learn more about Adaptive radiation, refer to the link:

https://brainly.com/question/1349313

#SPJ6

What is a renewable source?

Answers

Renewable sources are sources that cannot be destroyed by man.

Water
Air
Wind
Sun

I hoped this helped!
A renewable source in nature is something that naturally replenishes over time (or can't be exhausted with use) and can be used over and over again. 

Some examples of renewable sources (of energy) include solar power, wind power, water/hydroelectric power, and geothermal power because they can't be completely used up. 

Scientists typically transgenically alter ________ to produce more desirable species.

a.bacteria

b.humans

c.livestock

d.plants

Answers

Your answer is c.livestock. This also includes dogs and cats and any other animal they want.
D. Plants good luck . :)

What do the brackets around a chemical mean, like for [h + ]?

Answers

The brackets around a chemical formula represents or means the molar concentration of the given compound or element. For example; [H+] means the molar concentration of hydrogen ions, [H2O] means the molar concentration of water molecules, [NaCl] is the molar concentration of sodium chloride, and so forth. 
Final answer:

In chemistry, the brackets surrounding a chemical symbol or formula indicate the concentration of that substance.

Explanation:

In chemistry, the brackets surrounding a chemical symbol or formula indicate the concentration of that substance. For example, [H+ ] represents the concentration of hydrogen ions in a solution.

Drinking five ounces of wine is better for the body than drinking twelve ounces of beer because there's less pure alcohol in a glass of wine. please select the best answer from the choices provided. t f

Answers

The given statement is False.

The concentration of alcohol in beer is 4-5% and the concentration of alcohol in wine is 12-14%. Which means there is less pure alcohol in the beer as compared to that of wine.

Drinking beer is more beneficial for the body as compared to that of wine. It has more health benefits compared to that of wine.

The given statement is false because there is more pure alcohol in wine than in beer.

Which of beer or wine has a higher alcohol percentage?

Wine and beer are both alcoholic beverages, however the percentage of alcohol on wine is greater than that in beer.

Beer contains alcohol of about 4 to 5% while wine contains alcohol of about 12-15%.

Therefore, there is more pure alcohol in wine than in beer and the given statement is false.

Learn more about alcohol at: https://brainly.com/question/5851849

#SPJ2

How were American farmers in the 1940s impacted by new technology? a. They were able to increase their productivity due to the popularity of tractors. b. They experienced an increase in the demand for fresh foods. c. The introduction of new technology decreased their rate of productivity. d. Farmers were not impacted by new technology in the 1940’s.

Answers

Correct Answer is A. They were able to increase their productivity due to the popularity of tractors.

Answer:

A. They were able to increase their productivity due to the popularity of tractors.

Explanation:

What is the European Union’s most important water pollution act called

Answers

The European Union’s most important water pollution act is called Water Frame Work Directive.

Answer: The European Union's most important water pollution act is called Water Framework Directive.

The demand for clean lakes and rivers, coastal beaches and groundwater by the environmental organizations and the citizens the commission made water conservation a chief priority under which the Water Framework Directive was made. The Water Framework Directive has some of key objectives like expansion of the scope of water protection for all types of water sources, water managements on the basins of rivers, ensuring proper quality standards, involvement of citizens and correct pricing etc.

People sometimes use certain chemicals to kill unwanted plants. These chemicals seep into the ground and damage the roots. Explain why damage to the roots could kill the plant.

Answers

Roots for plants have many functions, including absorbing water and nutrients from the soil and anchoring the plant to the ground. For starters, if the roots are damaged, the plant no longer has an anchor to the ground and could be affected by heavy rainfall. The chemicals, such as herbicides, could be absorbed into the plant through the roots, which is toxic to the plants, killing them.

Because a plant's roots are so important to its overall health and functionality, damage to them can be detrimental to the plant's ability to survive.

Plants are supported structurally, anchored in the ground, and have roots that draw water and nutrients from the soil around them. Additionally, they make it easier for water and nutrients to reach the rest of the plant. Dehydration, malnutrition and general physical stress result from chemicals that damage the roots' ability to absorb nutrients and water. Lack of sufficient water and nutrients disrupts the plant's metabolism, resulting in wilting, stunted growth, and eventually plant death.

Learn more about plant here:

https://brainly.com/question/31220793

#SPJ2

Using the amino acid codon chart, what will happen to this protein sequence if the mutation shown occurs?


Original sequence mRNA: CAG GGA GCA UUA

Mutated sequence mRNA: CAG UGA GCA UUA

A)The seqence will stop at gln, because UGA is a stop codon. B)The sequence will change from gln-gly-ala-leu to gln-thr-ala-leu C)The sequence will remain gln-gly-ala-leu, because GGA and UGA both code for gly. D)It cannot be known what will happen, because there is not enough information to know.

Answers

A Is the answer to your problem

The protein sequence will stop at gln, because UGA is a stop codon.

Let's break down the sequences step by step using the amino acid codon chart:

Original sequence mRNA: CAG GGA GCA UUA

1. CAG codes for glutamine (gln).

2. GGA codes for glycine (gly).

3. GCA codes for alanine (ala).

4. UUA codes for leucine (leu).

So, the original sequence is gln-gly-ala-leu.

Now, let's analyze the mutated sequence mRNA: CAG UGA GCA UUA

1. CAG codes for glutamine (gln).

2. UGA is a stop codon, which signals the end of translation. Therefore, the mutated sequence will stop at gln.

The correct answer is: A) The sequence will stop at gln, because UGA is a stop codon.

the photograph show root vegetables what makes root vegetables a renewable resource?
A nutrients and calories
B taste and color
C supply and demand
D growth and reproduction

Answers

Growth and reproduction (D)

Heather has to solve this system of equations using elimination. what should be her first step?

Answers

the answer it letter d

What best defines a population?

Answers

Answer - Consists of all the individuals of a species that live together in one place at one time.
-
Leave A Thanks If This Helped ❤️
The members of a species in a given area.

A neural ___ it, chemical messenger, travels across the synapses and binds to a neural

Answers

I believe your answer is Transmitter and Receptor. Let me know if this helps any.

 Transmitter and Receptor

have fun :))))))))

Which term describes the nondigestible form of complex carbohydrates that occurs naturally in plant foods such as leaves, stems, skins, seeds, and hulls?

Answers

The dietary fiber is the non-digestible form of carbohydrates found in plant foods, such as leaves, stems, skins, seed, and hulls. Carbohydrates are organic compounds, such as starches, sugars, and glycogen, that are composed of carbon, hydrogen, and oxygen, and are sources of bodily energy. Complex carbohydrates are starches including cereals, fruits, and vegetables. 

Ray fears closed-in places. he will not enter elevators and only lives and works in places that can be reached easily or by stairs. ray suffers from

Answers

Final answer:

Ray's fear of closed-in places and avoidance of elevators indicate that he likely suffers from claustrophobia, an anxiety disorder characterized by fear of enclosed spaces.

Explanation:

Ray's fear of closed-in places and his avoidance of entering elevators are symptoms of a specific phobia called claustrophobia.

Claustrophobia is an anxiety disorder characterized by an irrational fear of enclosed spaces or situations that might make one feel trapped or unable to escape. It can lead to significant distress and avoidance behavior like the one exhibited by Ray.

People with claustrophobia often feel anxious, experience panic attacks, and may go to great lengths to avoid closed spaces or situations that trigger their fear.

Why is it important for women to perform breast self - examinations?

Answers

To make sure they, have no lumps because its a sign off breast cancer

In the food pyramid, the greatest biomass appears at the level of A) Birds and Mammals. B) Insects and Zooplankton. C) Phytoplankton and Bacteria. D) Small Fish and other Aquatic Species

Answers

Answer:

plankton and bacteria

Explanation:

Answer: C. Phytoplankton and bacteria

Explanation: Usatestprep

Name the part of the respiratory system that routes food and air

Answers

Trachea I think but I'm not positive. I hope I helped

A 14-year-old boy has been brought to the emergency department by his mother in excruciating pain that is radiating from his scrotum to his inguinal area. the boy's heart rate is 122 beats per minute and he has vomited twice before arrival at the hospital. examination reveals that his scrotum is reddened and slightly swollen and the testes are firm to touch and tender, with extensive cremaster muscle contraction noted. what is the boy's most likely diagnosis?

Answers

The answer would be testicular torsion.

The diagnosis for pain in the scrotum in a male patient would be either epididymitis or testicular torsion. Cremaster muscle will lift the testis and lessen the pain in case of testicular torsion. Extensive cremaster muscle contraction observed makes testicular torsion is more likely in this patient.

Which part of the spermatozoa contains the most mitochondria?
a. tail
b. midpiece
c. head
d. acrosome?

Answers

The answer would be: b. midpiece

Mitochondrial is an organelle that has a role in energy production. Part of the spermatozoa that need most energy would be its tail that has to constantly move. The movement of the tail mostly done in the midpiece where the mitochondrial present.
The head and acrosome should not have any, that is why the fertilized egg doesn't have mitochondrial from the sperm.


The basic difference between spermatogenesis and oogenesis is that ________. the basic difference between spermatogenesis and oogenesis is that ________. spermatogenesis involves mitosis and meiosis, but oogenesis involves meiosis only the mature ovum is n, while the sperm is 2n during spermatogenesis two more polar bodies are produced in oogenesis, one mature ovum is produced, and in spermatogenesis four mature sperm are produced from the parent cell

Answers

Mature ovum is being produced in oogenesis, while spermatogenesis has four mature sperms that contains enzymes due to that the sperm is able to penetrate an egg

Answer:

Mature ovum is being produced in oogenesis, while spermatogenesis has four mature sperms that contains enzymes due to that the sperm is able to penetrate an egg

Explanation:

Food aversions can be related to food allergies or to _____ to food.

Answers

The answer is adverse reactions

Answer: adverse reactions

The _____ lobe controls voluntary muscle actions and the muscles of speech.

Answers

The motor cortex, in the rear portion of the frontal lobe.
Other Questions
Clauses that stand alone and are complete sentences are called _____.A.subordinate clausesB.independent clauses Read the passage from "Names/Nombres" by Julia Alvarez. Our first few years in the States, though, ethnicity was not yet in. Those were the blond, blue-eyed, bobby-sock years of junior high and high school before the sixties ushered in peasant blouses, hoop earrings, serapes. My initial desire to be known by my correct Dominican name faded. I just wanted to be Judy and merge with the Sallys and Janes in my class. But, inevitably, my accent and coloring gave me away. Which detail best conveys the main idea that Alvarez wants to fit into her new culture? Our first few years in the States, though, ethnicity was not yet in. Those were the blond, blue-eyed, bobby-sock years of junior high and high school . . . . . . before the sixties ushered in peasant blouses, hoop earrings, serapes. I just wanted to be Judy and merge with the Sallys and Janes in my class.....NEED HELP PLEASE Career counselors in private practice require, to a greater extent than those in other settings, the ability to A teacher asks her students to design a game board for a class project. The dimensions of the boards created by four students are shown below. Angelalength: 20 cmwidth: 21 cmdiagonal: 29 cm Bradleylength: 9 in. width: 9 in.diagonal: 9 in. Carltonlength: 25 cmwidth: 30 cmdiagonal: 35 cm Dellalength: 10 in.width: 12 in.diagonal: 15 in. Whose game board could be a rectangle? Johnny flips a coin three times. what is the probability he lands on heads every time Exposure to clostridium tetani causes continuous release of acetylcholine. what effect does this have on particular skeletal muscles? If f(x) = x2 and g(x) = 1 over 2x + 3 , find g(f(-1)). the bill for a meal came to 65.40 plus 15% service charge what was the total bill? Dr. morris believes that it is inadequate for death to be only pain and trauma free. she believes that people suffering from a terminal illness should be able to select the particular style of exit they believe is consistent with their total lifestyle, such as a romantic death, a brave death, or one that integrates and confirms the person's unique identity. dr. morris subscribes to the quest for In which country do citizens have the fewest voting rights A. Iran B. Israel C. Turkey D. Saudi Arabia The source of power in a nuclear power plant comes from The line this disaster swallows up a man and wife together is an example of _____.A) simileB) metaphorC) personificationD) hyperbole What is the mode of the given data set? 65, 45, 79, 56, 63, 45, 71, 69, 65, 53, 45 Which of the following leaders fought for Mexican independence from Spain? When a terminally differentiated cell in an adult body dies, it can typically be replaced in the body by a stock of __________? Describe how you could draw a diagram for a problem about finding the total length for two strings, 15 inches long and 7 inches long Which is a symptom of toxic shock syndrome1.dizziness2.highfever3.depression4.weakness Kristin believes that a person should always tell the truth because that is what a good girl or boy does. she seeks to please others. this type of moral reasoning is characteristic of kohlberg's level of _____. If a quantity you calculated has units of (kg*m^2)/(s^2*c), what is that quantity? The federal reserve system: was created by and is owned by the government. pursues independent fiscal policy at the behest of congress. never acts to control inflation. pursues an independent monetary policy which can conflict with the government's economic policy. only acts to lower taxes and increase spending when there are recessionary tendencies in the econo