The scenario where a few survivors of a zombie apocalypse rebuild the human population after the majority is wiped out is an example of bottleneck effect.
Option (c) is correct.
The scenario described, where a zombie apocalypse wipes out the majority of the human species, leaving only a few survivors who rebuild the population, is an example of the bottleneck effect. The bottleneck effect occurs when a population undergoes a severe reduction in size, typically due to a catastrophic event or intense selection pressure. As a result, the surviving individuals become a small and unrepresentative sample of the original population.
The genetic diversity within the surviving group is reduced, and certain traits or alleles may be overrepresented or lost entirely. In this case, the few survivors who rebuild the human population are likely to have a limited genetic variation compared to the original human population. This phenomenon can have long-lasting effects on the genetic makeup and potential adaptation of the population in the future.
Therefore, the correct option is (c).
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The scenario where a few survivors of a zombie apocalypse rebuild the human population after the majority is wiped out is an example of:
a. Founder effect
b. Sexual selection
c. Bottleneck effect
d. Natural selection
which of the following is a characteristic of a malignant tumor? it demonstrates cells that are well differentiated. it is usually slow growing. it gains access to the blood and lymphatic channels. it grows by expansion.
A characteristic of a malignant tumor is that it gains access to the blood and lymphatic channels. Malignant tumors are cancerous growths that have the ability to invade nearby tissues and spread to other parts of the body through these channels.
This process is known as metastasis and is a hallmark of cancer. Unlike benign tumors, which are usually slow growing and remain localized, malignant tumors are aggressive and can grow rapidly. Additionally, they often demonstrate cells that are poorly differentiated, which means they do not resemble the normal cells of the tissue from which they originate. This lack of differentiation can make it difficult for the body's immune system to recognize and attack the cancer cells. Overall, malignant tumors are a serious health concern and require prompt diagnosis and treatment to prevent the spread of cancerous cells throughout the body.
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Water is a polar molecule because it has an equal number of
Answer:
The correct answer is : proton and electron (opposite charges).
Explanation:
Water is a polar molecule as it has equal number of electron and proton. Electron and protons are present on different end of water molecule, negative charge due to electrons at end of oxygen, while positive charge at end of hydrogen due to protons.
Equal number of electron and proton make it neutral or no net charge molecule however having opposite charge on its end makes is polar.
Thus, the correct answer is: proton and electron.
During the process of diffusion, solute particles will generally move from an area of high solute concentration, to an area of low solute concentration. This happens because... solute particles are drawn to regions of high solvent concentration solute particles move away from regions of high solute concentration the random motion of particles suspended in a fluid results in their uniform distribution. solute particles tend to move until they are uniformly distributed within the solvent, and stop moving.
Diffusion is a passive process that does not require energy. This is why the movement of molecules occurs from an area of high concentration to an area of low concentration. In the case of solute particles, they move until they are uniformly distributed within the solvent.
During the process of diffusion, solute particles will generally move from an area of high solute concentration, to an area of low solute concentration. This happens because the random motion of particles suspended in a fluid results in their uniform distribution .
Diffusion happens due to the kinetic energy that causes a random motion of molecules. When a molecule collides with another molecule or the wall of the container it is in, the kinetic energy of the molecule is transferred to the molecules it collides with, causing them to move in different directions.
Diffusion can occur in a variety of mediums, including gases, liquids, and solids. It plays a significant role in various biological processes. For example, it helps transport nutrients and oxygen to cells and allows for the excretion of waste products. Diffusion is a passive process that does not require energy.
This is why the movement of molecules occurs from an area of high concentration to an area of low concentration. In the case of solute particles, they move until they are uniformly distributed within the solvent.
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During the process of diffusion: "The random motion of particles suspended in a fluid results in their uniform distribution."
What is diffusion?During the process of diffusion, solute atoms move from an area of extreme solute aggregation to an extent of low solute aggregation. This motion happens due to the chance motion of atoms postponed in a fluid.
As solute particles are changeable motion, they bang into each one and with the firm atoms, generating them to open and enhance evenly distributed. This process persists as far as the solute pieces are evenly delivered inside the stable.
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you were tasked as an epidemiologist to collect this data and provide information to the public and institutions. what is the percentage of nonexposed cases of the covid-19 virus infection reported?
Epidemiologists collect data on the percentage of nonexposed cases of COVID-19 through surveillance systems, laboratory testing, and household surveys, and they provide information to the public and institutions through reports, briefings, and online resources.
The collection of data on nonexposed cases of COVID-19 is crucial in understanding the spread of the virus and the effectiveness of preventive measures.
Epidemiologists use a variety of methods to collect this data including surveillance systems that monitor the number of cases, laboratory testing that confirms the presence of the virus and household surveys that gather information about individuals who have been infected. This information is then analyzed and used to create reports and briefings for the public and institutions which can be accessed through online resources.
This information helps to inform public health policies, track the spread of the virus and help to control the pandemic.
The answer is general as no data are given. However, you may consider this answer from another source:
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Select the correct answer from each drop-down menu.
The lac operon in E.coli regulates genes that code for enzymes required for breakdown of lactose. The lac operon is
operon in that is activated in the presence of
Answer:
The lac operon in E.coli regulates genes that code for enzymes required
for breakdown of lactose. The lac operon is an inducible operon that is
activated in the presence of lactose.
Hope this helps! :)
A desert region would be most likely to experience what type of weathering?
A. Sedimentary
B. Exfoliation
C. Freeze-thaw
D. Biological
Answer:
The answer will be A
Sedimantary
Rank the order in which the earliest organisms evolved.
Green Algae, Archea and Bacteria, Shelled Invertebrates, Protists, Fungi and shell-less invertabreas.
The order in which the earliest organisms evolved -
Archaea and bacteriaProtistsFungi and shell-less invertebratesGreen algaeShelled InvertebratesOn the earth, various kinds of organisms evolve at different geological times, and on their evolution, they consider the oldest or youngest organisms:
Archaebacteria and bacteria was the oldest living organism on earth was, they lacked a membrane-bound nucleus and cell.The protists evolved after the bacteria, they were multicellular prokaryotic organisms.Fungi and the shell-less invertebrate, much-developed organisms in terms of body organization and structure. These have membrane-bound, well-defined cell membranes, and a nucleus. They even had a tissue level of organization.Green algae evolve after protists which belong to the division Thallophyta of the plant kingdom. These are photosynthetic as they have chlorophyll in the cell.Shelled Invertebrates are the youngest organisms that evolved recently among these.Thus, the correct order is -
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Variables, Constants and Control Groups
Escape Room
* Required
LEVEL 1
B C D
A
3
1
4
Enter the correct 4 digit code (no spaces)*
Answer:3142
Explanation:
Answer:
nu,mber 3 is sooo hard
Explanation:
Sheep are raised in significantly smaller numbers in the United States than either cattle or pigs. Sheep farming has changed in recent years. How has it changed?
A.
It has increased since 1980.
B.
It has declined since 1980.
C.
It has increased since 2000.
D.
It has declined since 1960.
The shortage of the resources along with the maintenance as this sis why the requirement that is getting lesser has impacted the industry. Although it contributes a large amount to the economy.
What is the name of 1st hybrid sheep ?It is the sheep that was named as Dolly and was invented in 2002 by cloning.
The shortage of the large-animal veterinarians taking place in many areas of country is challenge to sheep industry and to the other livestock industries as well . The same conditions led to the short fall in the United states as well.
Today, the domestic sheep count is 1/10 of the size it was in the World War II in the United states . The decrease is a result of the economic and the cultural factors that are coming together And it has left to the wonders. Some of the sheep that are raised for the wool others primarily for food.
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What organization level is the small intestine
The Small intestine is an ORGAN.
The level of organization of intestine is organ level, the correct option is B.
What is level of organization?Levels of organization are natural structures characterized by part-whole connections, with things at higher levels composed of things at lower levels.
These components are organized into levels. Cells, tissue, organs, organ systems, and organisms are the five levels.
Cells are the building blocks of all living things. This is what sets living things apart from other objects.
When two or even more tissues collaborate for a specific function, this is referred to as organ-level organization.
The bladder, for example, is made up of an inner layer of epithelial tissue that is connected to (smooth) muscle by various connective tissues.
The intestine is a gastrointestinal organ located between the stomach and the rectum.
Thus, the correct option is B.
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Your question seems incomplete, the missing options are:
Tissue.Organ.Cellular.Organ system.ways to help save the sea lions from endangerment
Answer:
-establishment of forest reserves
-ban illegal hunters
-raise awareness of endangered animals
a(n) _________ disease is relatively severe but of a short duration.
An acute disease is relatively severe but of a short duration.
An acute disease is relatively severe but it is a disease which is basically of a short duration. Acute diseases are characterized by their sudden onset and rapid progression. They tend to have an intense and severe impact on the individual's health, but they typically resolve within a relatively short period. Examples of acute diseases include the common cold, influenza, appendicitis, and acute bronchitis.
Treatment for acute diseases often focuses on symptom management, alleviating discomfort, and supporting the body's natural healing processes. Unlike chronic diseases, which are long-lasting and may require ongoing management, acute diseases are temporary and typically do not have long-term effects once they have run their course or been effectively treated.
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All animals areA) polytrophs.B) autotrophs.C) biotrophs.D) heterotrophs.
A heterotroph is an organism that consumes other organisms in a food chain.
So the answer is D) heterotrophs.
Plants on the other hand, are autotrophs, they are able to produce energy from solar energy, so they are the first one on the food chain.
When you feel the warmth of the sun on your face what type of thermal energy transfer are you experiencing?
Which is the best answer to explain how energy levels are affected as energy moves through a food pyramid?
a)Energy increases at the top of the food pyramid because the top predators need more energy
b)Energy increases at the bottom of the food pyramid because consumers pass energy on to the producers
c)Energy decreases at the top of the pyramid because energy is lost at each level of the pyramid
d)Energy decreases at the bottom of the pyramid because producers represent less energy than consumers
Which of the following is a peripheral duty for which many customer service representatives are responsible?
evaluating customer service managers
testing products and services
creating Key Performance Indicators (KPIs)
verifying customer account information
Answer:
key perfomance indicators
Explanation:
What could potentially be a problem when pests get out of control?
Answer:
What are potential issues when pests are out of control?
They spread disease: Many pests are known to cause various health issues. Rodents can transmit salmonellosis, hantavirus and other serious diseases. Cockroaches can trigger allergy symptoms and asthma. They damage property: Many pests will do damage to your equipment and other property
Enzymes lower the ________________ _______________ for a reaction
Enzymes lower the _________activation energy_______ _______________ for a reaction.
What is enzymes?Enzymes can be defined as proteins that help speed up metabolism or the chemical reactions in our bodies. They build some substances and break others down. All living things have enzymes.
There are four functions of enzymes such as:
DetoxificationMuscle buildingBreaking down food particles during digestionTherefore enzymes actually accelerate the rate of a chemical reaction to support life. Enzymes are very helpful in performing important functions of our body.
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Please help! skin melanocytes produce the protein melanin, which gives the skin pigment. muscle cells do not produce melanin. which statement explains this difference between skin melanocytes and muscle cells?
A. muscle cells rely on rna, while melanocytes rely on dna.
B. melanocytes and muscle cells express different genes.
C. muscle cells destroyed the gene for melanin, but melanocytes did not.
D. melanocytes contain different genes from muscle cells
Answer:
The correct answer is B. "Melanocytes and muscle cells express different genes."
Although all cells in an organism (such as a human) contain the same DNA, different cell types express different sets of genes. Gene expression is the process by which specific genes are activated to produce a needed protein. In this case, the gene responsible for melanin production is expressed in melanocytes, but not in muscle cells.
This does not mean that muscle cells have destroyed the gene for melanin (as stated in option C) or that melanocytes contain different genes from muscle cells (as stated in option D). All cells within an organism contain the same genes, but not all genes are expressed in every cell. The process of gene expression is regulated by the cell to ensure that each cell type functions properly.
Option A is also incorrect because all cells, including both muscle cells and melanocytes, rely on both DNA (for storing genetic information) and RNA (for transmitting that information and producing proteins). DNA is transcribed into RNA, which is then translated into proteins. This process occurs in all cells.
The statement explains the difference between skin melanocytes and muscle cells is - melanocytes and muscle cells express different genes. So option b is correct.
Melanocytes are dark, dendritic-shaped, highly differentiated cells that secrete melanin, a pigment found in melanosomes, which is the primary function of melanocytes.
Melanocytes are a type of cell derived from the neural crest. They form a synapse with keratinocytes through their dendrites in the epidermis. Melanocytes play an important part in skin pigmentation and their role in the generation and distribution of melanin has been extensively studied.
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Explain what is meant by "It's all about how you view it," when looking at evidence of
creation/evolution. Use complete sentences and proper grammar.
The views depend on the mindset and thinking of the individual.
Good views and bad viewsThe statement i.e. "It's all about how you view it," means that views depend on the psychology or mind of that people. If the people have negative mind then the views are also of negative and of bad nature.
While on the other hand, if the people have positive thinking or mindset then the views of that person is also positive and good so we can conclude that the views depend on the mindset and thinking of the individual.
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How would you classify the virus when it is inside a host, like the dog? Explain your reasons why.
Answer:
I would try to protect my self and others because a virus can spread all round so I would stay far from the host
To answer this question, please reference the Problem Solving Video: Understanding Glycogen. In glycogen metabolism, which molecule's synthesis reaction is driven by the hydrolysis of pyrophosphate? PP, +H,O+2P UDP-glucose O glucose 6-phosphate O glucose O glucose 1-phosphate
In glycogen metabolism, the synthesis reaction of UDP-glucose is driven by the hydrolysis of pyrophosphate.
What is glycogen metabolism?
Glycogen metabolism refers to the metabolic process that converts glucose into glycogen and vice versa. Glycogen is the primary energy storage molecule in animals, and it plays a crucial role in maintaining blood glucose levels. The process of glycogen metabolism can be divided into two distinct stages: glycogen synthesis and glycogen breakdown.
Synthesis of UDP-glucose: UDP-glucose is synthesized from glucose 1-phosphate and UTP (uridine triphosphate) in the presence of the enzyme UDP-glucose pyrophosphorylase. The reaction is driven by the hydrolysis of pyrophosphate.
The reaction can be represented as follows: UDP-glucose is the precursor molecule that is used to synthesize glycogen. The synthesis of glycogen requires the action of the enzyme glycogen synthase, which adds glucose residues to the growing glycogen chain. The glycogen chain is extended one glucose residue at a time until it reaches a length of several thousand glucose residues.
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(b) To genetically engineer the original cell so that it would glow, the scientists had to obtain a suitable
gene.
(i) Describe the stages that a scientist would complete to obtain this gene.
Answer: See Below
Explanation:
1. The scientist would need to identify the gene for a protein that would make it glow. For example Aequorea victoria, the jellyfish that produces green fluorescent protein (GFP) is the most common type of fluorescent tag use in biotechnology. This would be done by completing genetic sequencing to identify the gene of interest from the jellyfish cell.
2. The gene could then be amplified through PCR. Assuming this is a bacterial cell, a vector such as pUC19 could be used. The vector and the PCR amplified product would have to be digested. A double digest is recommended to ensure the gene inserts in the proper conformation.
3. Heat shock the plasmid into the cell and proceed on to Blue/White screening to identify which cells contain the gene of interest. You can then isolate and grow the culture containing the GFP gene and induce with IPTG to produce the protein that would make it glow.
Alternatively you could buy a pre-made plasmid from AddGene containing the GFP gene for 75$, complete a miniprep on the cells and heatshock. Either way works.
3. Why do you think it is important for a cell to be selective?
Answer:
It it important for a cell to be selective because this function allows for certain molecules to let in and let out, if we had a non permeable cell, it wouldn't allow anything to leave nor enter. If we had a 100% permeable cell, EVERYTHING would be permitted to go through, harmful or not.
Explaination:
N/A, I believe the answer itself is an explanation.
In digestion, where are molecules coming from? *
a.From food the animal eats
b.From the blood
c.From the cells
Answer:
In digestion molecules come from food the animal eats (option a).
Explanation:
Foods that are consumed are those that provide the necessary molecules for the maintenance of the organism. The process of digestion consists of converting food into molecules —amino acids, glucose and fatty acids— that are easily absorbed by the body.
When an animal eats food, its digestive system is in charge of processing it and converting it into simple molecules, necessary to cover its requirements.
Dynein feet Group of answer choices are found on microtubules in cilia and flagella and cause movement by grabbing and pulling at adjacent microtubule doublets. are knobs of carbohydrate that are essential to the movement of cilia and flagella. are present in cilia but not in flagella. are the anchoring proteins in basal bodies.
Answer:
The correct answer is - are found on microtubules in cilia and flagella and cause movement by grabbing and pulling at adjacent microtubule doublets.
Explanation:
Dynein feet or arm is made up of dyneins a family of cytoskeletal motor proteins that present on microtubules in flagella or cilia or both and drives the beating motion of cilia and flagella.
These form the rows of arms or feet inside and outside, associated with the doublet microtubules of motile cilia that produce microtubule sliding to move along. It gets its energy through ATP hydrolysis.
The photograph shows a result of waves made by an earthquake.
What was transported to this location by the earthquake waves?
O A. Rock
O B. Matter
O C. Gravity
D. Energy
what does the word gastropoda mean
Answer:
a large class of mollusks which includes snails, slugs, whelks, and all terrestrial kinds.
Explanation:
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WRITE IT IN UR OWN WORDS PLS
Does the amount of UV light that Australians get contribute to their high skin cancer rates?
Expand on this evidence to say why this makes sense to you and supports your claim. (Excellent answers will include what you know about energy in your answer.)
Yes, the amount of UV light that Australians get does contribute to their high skin cancer rates. Australia has the highest rate of skin cancer in the world, and this is largely due to the country's high levels of UV radiation. Australians are exposed to more UV radiation than people in other parts of the world due to the country's location in the Southern Hemisphere, which is closer to the sun. Additionally, the ozone layer over Australia is thinner than in other parts of the world, which allows more UV radiation to reach the surface. This increased exposure to UV radiation increases the risk of skin cancer, and is a major factor in Australia's high skin cancer rates. In conclusion, the amount of UV light that Australians get does contribute to their high skin cancer rates. Australians are exposed to more UV radiation than people in other parts of the world due to their location in the Southern Hemisphere, and the thinner ozone layer over Australia allows more UV radiation to reach the surface. This increased exposure to UV radiation increases the risk of skin cancer, and is a major factor in Australia's high skin cancer rates.
Claim: The amount of UV light that Australians get contributes to their high skin cancer rates.
Reasoning: Australians are exposed to more UV light than people in other parts of the world due to their location near the equator and the hole in the ozone layer over the continent.
Evidence: According to the World Health Organization, Australia has the highest rate of skin cancer in the world, with two in three Australians being diagnosed with skin cancer by the age of 70. Additionally, the Australian Radiation Protection and Nuclear Safety Agency has reported that Australians receive up to 15 times more UV radiation than people in other parts of the world.
Which type of tissue can send electrochemical signals?
A. Neuroglial cells in nerve tissue
B. Squamous cells in epithelial tissue
C. Neurons in nervous tissue
D. Goblet cells in epithelial tissue
The correct answer is C.Neurons in nervous tissue
they can generate and send electrochemical signals according to the distribution of ions on the two sides of the membrane