2 Provide an example of a prezygotic mating barrier, and explain how it works to reinforce reproductive isolation in an area of secondary contact (hybrid zone).
Answers
Anything that occurs before the zygote is an example of the prezygotic mating barrier. A common example is behavior isolation, which occurs when two different species use different calls, rituals, or dances and will not attract mates of the same species.
What is reproductive isolation?A species' inability to successfully breed with related species due to geographical, behavioral, physiological, or genetic barriers or differences is referred to as reproductive isolation.
There appear to be five major types of prezygotic reproduction barriers: spatial isolation, temporal isolation, mechanical isolation, gametic isolation, and behavioral isolation.
Anything that occurs before the zygote is an example of the prezygotic mating barrier.
A common example is behavior isolation, which occurs when two different species use different calls, rituals, or dances and will not attract mates of the same species.
Thus, in this way prezygotic mating barrier reinforce reproductive isolation in an area of secondary contact.
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Related Questions
Which amino acid is always the first one to be incorporated into a newly made protein? this is because of the identity of the only start codon.
Answers
The amino acid is always the first one to be incorporated into a newly made protein is met
What is meant by protein?
A structure composed of amino acids. The body need proteins to function properly. They serve as the building blocks for several bodily components, including the skin, hair, and enzymes, cytokines, and antibodies.
The word "protein," which comes from the Greek word "o" (proteios), which means "principal," "in the lead," or "standing in front," and the suffix "-in," was proposed by Mulder's associate Berzelius to characterise these molecules.
Amino acids, which are organic molecules formed of carbon, hydrogen, nitrogen, oxygen, or sulphur, are the chemical building blocks of protein. According to the National Institutes of Health, proteins are the building blocks of muscle mass much like amino acids are (NIH).
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Explain how an adaptation can enable an organism to survive a long-term environmental change. Describe and example to support your answer
Answers
Answer:
survival of the fittest
Some die, some survive. Those that survive to reproduce pass along their genes. Some survive by good luck. Others survive because they happen to have some quality that gives them a better chance to tolerate the environmental changes. Assuming those qualities are heritable, they’ll become more common in the genes of the surviving population. Eventually they’ll predominate. The population will have adapted to the changes.
With the exception of very primitive organisms, living animals have various senses including those familiar to us as sight, sound, touch, taste, and smell. Certain organisms have senses that we do not share. For instance, the class of snakes we call “pit vipers” have a specific organ that senses heat from prey animals, even in total darkness.
Bats use echolocation, bouncing high-pitched sound waves off of obstacles and prey alike. So do dolphins.
Many insects have the ability to smell only a few molecules of pheromones from potential mate
I took the question differently than everyone else, but it sounded to me like the OP was asking for examples of HOW organisms adapt, not two organisms that adapted.
Adaptation often begins with environmental monitoring systems. Lets say antibiotics are taken by a patient and a small amount gets in the area of a pathogen who is testing its environment. The pathogen detects the threat and begins to construct a genomic edit that can counter it. Unfortunately for us, cells are still more skilled with biochemistry than humans.
If you mean like to adapt in an instant, we humans release adrenaline to overcome stress and it actually makes us more prone to overcome stress. Another example its σ32 is the heat shock sigma factor in Escherichia coli, which it helps the bacteria to survive in a “heat shock”.
When we look at evolution, we often look at bacteria or animals that aren't really related to us, like the dinosaurs and how they evolved into avian animals.
There are two examples in human history that are great for this question.
Humans
Yup. People have made adaptations to the environment. Well, at least the environment that we create for ourselves.
Milk contains lactose, which requires a special enzyme to break down. After a few months of age, babies lose this enzyme and become lactose intolerant. So why can we drink milk now?
That's because in our past, farmers began to drink milk from other an
(1) Antibiotic resistance
(2) Mitochondria losing unnecessary genes for symbiosis w/ eukaryotes
this is a miracle of evolution as we have read in our childhood about camels and about xerophytes(cactus) they got adapted to their environment but according to Darwin there is survival of the fittest which means there may be various types of a single species now under a harsh environment it may be that not all types of a single specie lives so they perish
Question 10 Increased volume (sound volume) is associated with: O greater frequency of cochlear nerve action potentials O greater amplitude of sound wave O all of the above O No answer text provided. Question 11 Which part of the eye has visible color (not white)?
O Iris
O Sclera O Choroid O Retina
Answers
Increased volume (sound volume) is associated with: greater amplitude of sound wave and The iris is the part of the eye that has visible color, not white. So, option b for first question and option a for second is correct.
The amplitude of a sound wave refers to the magnitude or intensity of the disturbance created by the wave. In simpler terms, it represents the height or strength of the wave.
For sound waves, the amplitude is directly related to the loudness or volume of the sound. A higher amplitude corresponds to a louder sound, while a lower amplitude corresponds to a softer sound. In graphical representations of sound waves, the amplitude is often depicted by the height of the wave's peaks or troughs.
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Complete question:
Question 10 Increased volume (sound volume) is associated with:
greater frequency of cochlear nerve action potentials
greater amplitude of sound wave
all of the above
No answer text provided.
Question 11 Which part of the eye has visible color (not white)?
O Iris
O Sclera
O Choroid
O Retina
means that organisms work together to benefit each other and the ecosystem in which they live. They rely on each other to fulfill their needs and to thrive.
Answers
The concept is known as mutualism or symbiosis. Mutualism is a type of interaction between different species where both organisms benefit from their relationship.
It is a cooperative association in which each organism provides a resource or service that the other organism needs, leading to mutual advantages.
In mutualistic relationships, organisms rely on each other to fulfill their needs and enhance their chances of survival and reproduction.
Few examples to illustrate how mutualism works:
Pollination: Bees, butterflies, birds, and other pollinators rely on flowers for nectar and pollen as a food source. In the process of feeding, they inadvertently transfer pollen from one flower to another, facilitating the reproduction of plants.
Nitrogen-fixing bacteria: Certain bacteria, such as Rhizobium, form mutualistic relationships with leguminous plants like peas and beans. These bacteria live in specialized structures called nodules in the plant roots and convert atmospheric nitrogen into a usable form for the plants.
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What type of
tillage practice is
shown in this
picture?
A. no-till
B. wind breaks
C. terracing tillage
Answers
Answer:A. no-till
Explanation: There are a large number of more or less well defined tillage systems for soil preparation and crop establishment.
Answer: C. terracing tillage
Explanation:
You are studying a sample of igneous rock. The rock formed within Earth’s crust. The sample contains a very high concentration of dark-colored, high-density minerals. Classify the rock by type and composition.
Answers
The rock formed within Earth’s crust. The sample contains a very high concentration of dark-colored, high-density minerals is rhyolite.
Classification of rocksAn igneous rock that was extruded is rhyolite. The volcanic eruption is what creates it. Glassy-looking is how this rock appears. This rock has very fine grains. Its pale tint, which can be either pink or gray, is caused by its small grain size and silica deposition. Quartz, sanidine, plagioclase, biotite, and other dark-colored mineral particles are also included. Gases are trapped within this rock as well. The shape and look of the rock are crystalline. The rhyolite rock's pale tint is also a result of the mafic minerals' low concentration.Among volcanic rocks, rhyolite has the highest silica content. Its texture is often glassy or fine-grained, but it can also be porphyritic, which means that it contains bigger mineral crystals within a groundmass that is primarily composed of finer crystals.For more information on rhyolite kindly visit to
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Can someone please do this?? I'll give you Brainliest...
Answers
Explanation:
DNA is a self replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information
RNA is a nucleic acid present in all living cells. Its role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins
Nucleic acid is a complex organic substance present in loving cells, especially DNA and RNA, whose molecules consist of many nucleotides liked in a long chain
*
In what process is RNA made in a cell?
What the answer
Answers
Crishna and Caveri live with their mother. In the morning, all three leave home
together.Crishna leaves Caveri at school and goes to college. Their mother goes to work
at the restaurant for the day. When mother return home, they cook dinner and then eat
together. During holidays, the children visit their father. What kind of family is this?
A nuclear family
B.
extended family
C. single parent family
D.
blended family
Answers
This is a single parent family. Therefore, option (C) is correct.
What is a single parent family?A single parent family is a family type that consists of one parent raising children on their own, without the support of a partner. This type of family structure can be formed due to a variety of circumstances, such as divorce, separation, or the death of a parent.
Single parent families can face unique challenges and may require additional support, but they can also be strong and successful. It is important for single parents to seek out resources and support, such as through community organizations, to help them in their role as caregivers and providers for their children.
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We are dissecting a sea cucumber in class. it is a member of which class?
Answers
When the class performs a sea cucumber dissection. It belongs to the holothuroidea class.Thus, the correct answer is Holothuroidea.
More than 1,400 different species of soft-bodied sea cucumbers are found in the Class Holothuroidea.
Due to their tubular bodies, which lack a skeleton that can be seen and hard appendices, holothurians do not first resemble other echinoderms.
Moreover, a bilateral symmetry doubles the fivefold symmetry that is typical for echinoderms while yet being structurally retained, giving them the appearance of chordates. Nonetheless, some species still display a central symmetry through five 'radii' that run from the mouth to the anus (much like sea urchins), where the tube feet are attached. Hence, unlike sea stars and other echinoderms, which have "oral" or "aboral" faces, the
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Birds are sometimes thought as a special type of reptile because they share a common ancestor with the _________________, the crocodiles and alligators, and both birds and crocodiles and birds possess a __________________ heart.
Answers
Birds are thought of as a special type of reptile because they share a common ancestor with the crocodiles and alligators.
Birds and crocodiles both belong to the group Archosauria, which is a group of reptiles that lived around 250 million years ago. These reptiles had many similar characteristics, including a four-chambered heart. This type of heart allows for more efficient circulation and is a key adaptation for warm-blooded animals like birds and mammals. Therefore, both birds and crocodiles possess a four-chambered heart.
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Describe the appearance of the mycobacterium on a plate. with what cell component does this correlate?
Answers
Answer:
The appearance of the mycobacterium is like rod shaped.
Explanation:
The structure of mycobacterium is rod liked and it is purple in color. The meaning of the word mycobacterium is fungus bacteria because it resembles with the fungus in its structure and appearance. Cell wall is the cell component which correlate with mycobacterium. The structure of cell wall is thick and made up of several layers of peptidoglycan which is formed from sugar and amino acid molecules.
What will most likely happen if a person does not consume the minimum daily requirement of carbohydrates?
Answers
If a person does not consume the minimum daily requirement of carbohydrates then the body will use stored glycogen and the person will look unhealthy and become weak after some time.
Importance of carbohydrates: Like other nutrients, carbohydrates are also very essential for various functions of the body. Carbohydrates such as glucose are required for instant energy and day-to-day activities. If there is no or less amount of carbohydrate in the body then our body will start converting the glycogen that is stored in the liver into glucose. After some time, the person will start to appear unhealthy, thin and weak if there is no minimum daily requirement of carbohydrates is met.To know more about carbohydrates, refer:
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What is the process that removes dead yeast cells in the traditional champagne method?
Answers
In the traditional champagne method, also known as méthode champenoise, the process that removes dead yeast cells is called riddling or remuage. After the wine undergoes its secondary fermentation in the bottle, the yeast cells die and form a sediment in the bottle.
To remove this sediment, the bottles are placed on special racks called pupitres at a 45-degree angle, and the bottles are rotated slightly every day to encourage the dead yeast cells to settle in the neck of the bottle. This process can take several weeks or even months, depending on the producer's preference.
Once the dead yeast cells have settled in the neck of the bottle, the next step is called disgorging. The neck of the bottle is frozen to form a plug of ice containing the sediment. The bottle is then quickly opened, and the pressure from the carbon dioxide in the wine forces the plug of ice out, along with the dead yeast cells. The wine is then topped up with a mixture of wine and sugar, called the dosage, to replace the lost volume and balance the wine's acidity.
Overall, riddling and disgorging are crucial steps in the traditional champagne method, as they remove the dead yeast cells and ensure a clear, bright wine that is ready for consumption.
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Imagine a species of coral reef fish that is threatened by both overfishing and pollution. Design an observational study (or possibly a pair of studies) that you could use to understand the relative importance of these two threats. Be sure to specify whether you would use a control-impact, BACI, or regression approach. Describe how your study would deal with any potentially confounding variables.
Answers
In this ecological coral reef study, we used a control impact approach, BACI.
What kind of threats do coral reefs face?Unfortunately, coral reefs suffer from a number of threats, ranging from
Overfishing to coastal developmentAgricultural runoff and Shipping.Furthermore, climate change further exacerbates these local threats.
A species of coral reef fish that is threatened by both overfishing and pollution. the observational study that we can use to understand the relative importance of these two threats would be observation over a certain period of time. this study would deal with any potentially confounding variables using reference articles.
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Emma is a biomedical engineer who designs robots that perform intricate surgeries. Into which two career clusters that we have considered so far could Emma’s job fall? Give a reason for your choices. Then explain what type of companies might be interested in employing Emma and funding her work
Answers
Emma's job could fall into the Engineering and Technology cluster, as she designs surgical robots, and the Health Science cluster, due to her contribution to surgical advancements.
Emma's job as a biomedical engineer designing robots for intricate surgeries can fall into the following two career clusters:
Engineering and Technology: Emma's role as a biomedical engineer involves designing robots and utilizing technology to improve surgical procedures. This cluster encompasses professions that involve the application of scientific and engineering principles to develop innovative solutions and technologies.Health Science: Emma's work directly relates to the healthcare field, specifically in the area of surgical advancements. The health science cluster involves careers that focus on promoting, maintaining, and improving the overall well-being of individuals and communities through medical research, innovation, and healthcare delivery.To know more about biomedical engineer
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enteroaggregative e. coli is able to stick to the mucosal lining of the intestines. this is most likely due to the presence of a ____________ virulence factor.
Answers
The most likely virulence factor responsible for the ability of enteroaggregative E. coli to stick to the mucosal lining of the intestines is a fimbriae called aggregative adherence fimbriae (AAF).
Enteroaggregative E. coli (EAEC) is known for its characteristic aggregative adherence pattern, where it forms stacked or "stacked-brick" adherence to the intestinal mucosa. This pattern allows the bacteria to adhere to the epithelial cells of the intestines and establish infection.
Aggregative adherence fimbriae (AAF) are appendages on the surface of EAEC that play a crucial role in mediating the aggregation and adherence of the bacteria to the intestinal mucosa. These fimbriae are involved in the initial attachment of EAEC to host cells and the formation of biofilms, contributing to the colonization and persistence of the bacteria within the intestines.
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A fetus has been developing for three months. What will happen next?
A. Vocal cords develop
B. External sex organs form
C. Blood starts pumping
D. Hands and feet are formed
Answers
corruption is also shaped by our tolerance or our approach to answering societal problems
Answers
Yaa that's true...I totally agree with it
Yes, corruption occurs due to the tolerance of people.
Yes, corruption is shaped by our tolerance because the corrupt people do corruption when they know that people can't do anything or they are not arrested for their corruption then they do corruption. this is our tolerance which give them opportunity to do corruption.
If the people punished such type of person in public then no person will do corruption and the country or society experience more growth so we can say that corruption occurs due to the tolerance of people.
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The heart rate of 10 adults is measured, and the results are 83, 87, 90, 92, 93, 100, 104, 111, 115, 121. Find the interquartile range of the data set.
a
21
b
38
c
90
d
96.5
Answers
The interquartile range of the data set of the heart rates of 10 adults is 21.
What is the interquartile range of the data set of the heart rate of 10 adults?The interquartile range of a set of data is given as the difference between the lower median value and the upper median value of the data.
To calculate the interquartile range of the data set of the heart rates of 10 adults, we arrange the data first in increasing order as given below:
83, 87, 90, 92, 93, 100, 104, 111, 115, 121
The data set is an even dat set and is divided into five values each.
The lower median of the set is obtained as follows:
83, 87, 90, 92, 93; lower median value = 90
The upper median of the set is obtained as follows:
100, 104, 111, 115, 121; upper median value = 111
The interquartile range = upper median - lower medianThe interquartile range = 111 - 90
The interquartile range = 21
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some friends who are on vacation have sent you a photo from when they were out on a hike. you notice that all of the vascular plants in the photo are relatively short and that most of those plants are shorter than your friends. the caption on the photo says, "where are we?" based on the photo, which biome are your friends most likely to be in?
Answers
Your friends are most likely in a grassland biome.
What is a biome?A biome is a large, geographically distinct area of the Earth's surface where a certain type of ecosystem exists. Biomes are usually characterized by their climate, vegetation, and animal life. Examples of biomes include rainforests, deserts, tundra, and coral reefs.
Other examples of biomes include grasslands, temperate forests, alpine regions, and estuaries. Each biome has its own unique set of characteristics, such as its climate, soil, and vegetation. The unique combination of these characteristics creates an environment that is home to a variety of species of plants and animals.
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what is the name of the biggest fish in history?
Answers
Describe how new hair fibers are formed
Answers
Answer:
Taking nutrients from the dermal papilla, the hair bulb generates new hair cells. As these cells move up through the hair root, they mature through a process called keratinization, fill with fibrous protein and lose their nucleus.
Explanation:
I found this on the internet and don't know if it is correct but if it is can I get a brainliest please?
When Chandler, one of the characters on the television show Friends, drank YooHoo chocolate flavored beverage, it was an example of ________.A) webisodesB) advergamesC) product placementD) interactive television(iTV)E) out of home media
Answers
Chandler drinking YooHoo chocolate flavored beverage on the television show Friends is an example of product placement, option c.
Product placement refers to the practice of featuring branded products or services in popular media content, such as TV shows, movies, or music videos. It is a form of advertising where products are seamlessly integrated into the storyline or scenes, providing exposure and visibility to the brand.
In the case of Chandler drinking YooHoo on Friends, it is a deliberate placement of the YooHoo beverage as a means of advertising and promoting the brand to the show's audience.
Product placement is a widely used marketing strategy to reach a large audience and create brand awareness. By showcasing products in popular media, advertisers aim to associate their brand with positive emotions, characters, or situations, ultimately influencing consumer behavior and purchasing decisions.
In the case of Friends, the inclusion of YooHoo as part of the show's storyline helps to create a connection between the brand and the characters, potentially influencing viewers to try or purchase the product themselves.
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which layer of the earth is made out of melted metal?
Answers
The outer core. A molten nickle- iron alloy.
How did green algae come about
Answers
Answer:
Green algae grow at the edges of a glacial lake in Wales. Hundreds of millions of years ago, similar algae adapted to survive temporarily outside of the water may have kicked off the evolution of green land plants.
Algae didn't always hang out in the seas, but one fateful day, about a billion years ago, a simple bacterial cell swallowed a cyanobacteria cell, writes Ed Yong at The Atlantic. This chance occurrence allowed the bacteria to produce energy from the sun, a process known as photosynthesis.
Explanation:
POSSIBLE POINTS: 3
are made from smaller building blocks known as nucleotides. Their main function is
Two examples include
Answers
Answer:
Proteins are composed of amino Acids
Answer:
Nucleic acids are made from smaller building blocks known as nucleotides.
The main function of nucleotides: is to form polynucleotides, which are strands of genetic information that can wrap around each other to form a DNA double helix.
Explanation:
At what point during the life cycle could some mollusks be considered parasites?
Answers
Answer:
Larva Stage
Explanation:
I haven't taken Biology in years but from what I remember it was the larva stage. Hope this helps <3
FILL IN THE BLANK more than half the volume of blood consists of ____, a yellowish liquid that carries nutrients, hormones, and waste for other body systems.
Answers
More than half the volume of blood consists of plasma, a yellowish liquid that carries nutrients, hormones, and waste for other body systems.
Plasma is composed mostly of water, with other substances such as electrolytes, proteins, and glucose also present in smaller quantities. It is the main component of blood and plays a critical role in maintaining the body's homeostasis.
Plasma carries nutrients and oxygen to various parts of the body while also removing waste and carbon dioxide. It also helps to regulate the body's temperature and pH levels. Additionally, plasma contains clotting factors that aid in the process of blood coagulation, which is crucial in preventing excessive bleeding after injury.
Plasma is also important in maintaining the body's immune system by transporting antibodies, which help fight off infections and diseases. Thus, any disturbance in the composition of plasma can cause significant disruptions in the normal functioning of the body.
Overall, plasma plays a vital role in maintaining the proper functioning of the body's various systems and is an essential component of the circulatory system.
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complete the sentences from George Bernard Shaw's the doctors dilemma with word
s that are punctuated and spelled correctly this of course does amount to a sort of working of rule of thumb( options: conscience:
conscience.
conscience
conscience; ) but it means that you'll do anything good or ( options: bad:
bad,
bad;
bad. ) provided you get enough people to keep you accountants by doing it also it is the sort of conscience that makes it possible to keep order on a pirate (options: ship:
ship;
ship
ship. ) or in a troop of bringings it may be said that in the last analysis there is no other sort of Honor or conscience in existence that the ascent of the majority is only sanction known to ethics
Answers
Answer:
The correct answers are:
1. D : conscience;
2. B : bad,
3. D : ship,
Explanation:
The first answer requires a semicolon because we have two separate sentences, this is, two independent clauses, and in this case, we use the semicolon to connect them.
The second answer requires a comma as we have an appositive that does not provide essential information, so we separate it with a coma to designate additional information and maintain the structure of the sentence complete and clear.
The third answer requires a comma before the conjunction or because the rest of the sentence means the same as what precedes it. In this case, we use a comma as a sign of equivalence, to clarify that pirate ship is equivalent to a troop of brigands.
this is the correct answer