The Lederberg experiment that used the technique of replica plating showed that mutations are random and are not a result of the needs of the organism.
What is a random mutation?Random mutations are just that, they are changes in the genome of an organism that arise randomly. These mutations are the backbone of evolution and natural selection in that when they arise, if the organism becomes more adapted to survival as a result of this mutation, it increases its odds of survival through natural selection.
Therefore, we can confirm that The Lederberg experiment that used the technique of replica plating showed that mutations are random and are not a result of the needs of the organism.
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Removal of the fallopian tubes and ovaries: a.Salpingectomy b.Conization c.Total hysterectomy d.Bilateral salpingo-oophorectomy e.Partial hysterectomy
Answer:
D: bilateral salpingi-oophorectomy
Carl jung established __________ after disagreeing with sigmund freud on a number of issues regarding the psychodynamic perspective on personality please select the best answer from the choices provided inferiority-compensation theory psychoanalytic theory analytical psychology individual psychology
Answer:
analytical psychology
During an activity, students were given cards with different types of cells, tissues,
organs, and organ systems printed on them. Their task was to sort the cards into
labeled boxes, as depicted here, to show where they belong in the organization of
living things. Into which box or boxes could the card be placed that is labeled with
the term "Blood"?
A) Cells
B) Cells and Tissues
C) Tissues
D) Tissues and Organs
Blood is composed of a group of cells and therefore is classified as a tissue.
What is the organization of life?Organization of life is the organization of life into different levels based on complexity and function.
The levels of organization of life are:
cellstissuesorganssystemsCells are the basic unit of life.
A group of cells performing related functions together as a unit are known as tissues.
Blood is composed of a group of cells. Thus, blood is a tissue.
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The natural differences between individuals of a species are referred to as:.
Answer:
it is referred to as genetic variation
Describe the process that maintained a stable tasmanian devil population size before the appearance of dftd in 1996.
The Tasmanian devil population size before the appearance of dftd in 1996 was stabilized by genetic variation and gene flow.
What is Tasmanian devil population?The Tasmanian devil population is the world's largest marsupials. They were of brown color and with a size of a bear baby.
They have very sharp teeth and muscular and strong jaws, that makes it an animal with the most powerful bites in mammals.
These animals are currently in endangered, their population reduce due to shortage of food.
Thus, the Tasmanian devil population size before the appearance of dftd in 1996 was stabilized by genetic variation and gene flow.
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100 POINTS TO WHOEVER ANSWER ALL THE QUESTIONS
1. Make field observations supplemented with online or offline research regarding one source of water or air pollution in your region.
2. Assess the severity of the pollution generated and discuss the impacts of the pollutants on human health. If air pollution is involved, identify its possible effects on the ozone layer, acid rain, or greenhouse gas emissions.
3. Explain if the source of pollution is point or non-point.
4. Identify pollution control measures. Speculate on ways that the pollution could be further reduced
Answer:
Are these true or false questions or-?
Explanation:
I can answer in comments if they are..
In the photos there is part A and B I didn't know what to wright for part C
For part D this is what I put
( When High Particle Levels are Expected, Take these Extra steps to Reduce Pollution:
Reduce the number of trips you take in your car.
Reduce or eliminate fireplace and wood save use.
Avoid burning leaves, trash, and other materials.
Avoid using gas-powered lawn and garden equipment. )
Also there is a part E you press the 1 photo thing it's by the Equation Editor you then have to press my device go to a new tab look up source pollution btw and jus drag that image from that tab to your schooling tab and place it in the box it will automatically go in the box and into you answer part. idrk but that's what I know
you're welcome!
Why is it important to ask a person who has an insect sting if they have had any prior serious reactions to insect stings
It is important to ask about the reactions caused by an insect bite because this will allow you to act quickly if there are health effects.
What is an insect sting?The insect sting is the way in which insects defend themselves when they feel attacked by other organisms. Insects generally have stingers or spikes on their bodies to defend themselves against predators.
Why is it important to be aware of the effects of a sting?When a person suffers a sting, it is necessary to report all the symptoms that they experience because some insects have substances that affect the body and can cause allergic reactions that put the health and life of the individual at risk.
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Which two sentences best explain what happens to the energy snails get
from the plants they eat?
. A. The snails use about 1% of the plants energy to carry out life
processes.
. B. About 90% of the energy is lost as heat escapes into the
surroundings.
. C. The snails use about 10% of the plants energy to carry out life
processes.
D. About 90% of the energy IS passed on to the birds that eat the
snalls
Pls hurry
Answer:
B. About 90% of the energy is lost as heat escapes into the
surroundings.
C. The snails use about 10% of the plant's energy to carry out life
processes.
Explanation:
When is the BEST time to address stressful situations that can easily turn to anger?
When you are rested, focused, and prepared to handle them
When you are too tired and distracted to be angry
When others involved are ready to address the problem
As soon as the stressful situation arises
What are some intrinsic characteristics of endangered species that makes it difficult for them to rebound in a changed environment
The charactistics that make it difficult for endangered species to rebound include;
The habitat is significantly changedOver exploitation of the speciesPollution that threatens the existence of the speciesWhat are endangered species?Endangered species are those species that are facing the threat of extinction sometimes owing to severe habitat loss or some other factors.
We must note that these characteristics that make it difficult for endangered species to rebound;
The habitat is significantly changedOver exploitation of the speciesPollution that threatens the existence of the speciesLearn more about endangered species: https://brainly.com/question/12446045
Which of the following structures is not present in some chordates?
A a tail
B a backbone
C a notochord
D a hollow nerve cord
How do the final products of meiosis differ in reproductively capable humans that produce sperm versus eggs?.
Answer:
In males the result is 4 sperm cells
In females the result is one ovum and 3 polar bodies
The final products of meiosis in males is four sperm cells and in females it is one ovum and three polar bodies. Thus, the final product of meiosis is four sperm cell in male and one ovum in female with three polar bodies.
What is meiosis?
Meiosis is a process in which a single cell divides into two identical daughter cells and the process is known as cell division.
Meiosis is a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes.
The main functions of meiosis are mentioned below:
1) Meiosis in humans causes the decrease or reduction of the number of chromosomes in normal cells which is specifies as production of gametes.
2) Meiosis induces genetic variation by the process of recombination.
The main objective of meiosis is to produce gametes, the sperm and eggs, with half of the genetic character of the parent cell.Meiosis is a process in which a single cell divides into two identical daughter cells and the process is known as cell division.
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(20 points) pls help
Use the map below to describe the type of weather the
town at the arrow will be experiencing in the next few hours.
Answer:
rain, I think because I watch the news a lot an d the triangles usually mean rain
a cell model is shown. students were instructed to review the types and number of structures that are present in this cell model. which three cell types could be represented by the model?
Answer:
M. Temperature of the reaction
P. Amount of enzyme
T. pH of the reaction
What are three ways to reduce the use of energy at home?.
Please help me its my last queston
Answer:
Top right- bb. Bottom left = Bb. Bottom right- bb
Explanation:
Find the two letters that interset the box and fill them the upper or lowercase letter depending on where and what the letter are outsde the Pennet Square
Water absorbed through the GI tract is referred to as ______ water. Multiple choice question. obligatory preformed metabolic respiratory
Water that is absorbed by the Gastrointestinal tract is called nutrient which is absorbed by small intestine after it has been breakdown.
What is GIT?The gastrointestinal tract refer to the passageway of the digestive system or organs of the digestive system that begin from the mouth to the anus. The GI tract comprises of organs of the digestive system and they include esophagus, stomach, and intestines. The GIT help in digestion and absorption of nutrient.
Therefore, Water that is absorbed by the Gastrointestinal tract is called nutrient which is absorbed by small intestine after it has been breakdown.
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How do living organisms affect different parts of the biosphere?
Answer:
inhale oxygen and exhale carbon dioxide (CO 2) from the atmosphere.
Explanation:
Nerves designated by Roman numerals and by names that indicate their primary functions and/or the general distribution of the their fibers are
Cranial Nerves are paired nerves, since there is one for each side of the body, there are a total of 12 nerves and they are named with Roman numerals and by names that indicate their primary functions.
What are Cranial Nerves?They are a set of nerves that come directly from the brain, unlike the rest of the nerves of the nervous system.
Each pair is numbered with a Roman numeral depending on whether the position from which they leave the brain more or less near the frontal area.
Therefore, we can conclude that Cranial Nerves are paired nerves, since there is one for each side of the body, there are a total of 12 nerves and they are named with Roman numerals.
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the specific heat of a wax coating on a plant is 2400 j/kg degrees Celsius. During the day a 0.0055 kg coating of wax on a lead heats up from 15 to 22 degrees Celsius. How much radiant energy was absorbed by the wax?
The radiant energy was absorbed by the wax coating on the plant is determined as 92.4 J.
Heat absorbed by the waxThe heat absorbed by the wax is determined as follows;
Q = mcΔT
where;
m is mass of the waxc is specific heat capacityΔT is change in temperatureQ = 0.0055 x 2400 x (22 - 15)
Q = 92.4 J
Thus, the radiant energy was absorbed by the wax coating on the plant is determined as 92.4 J.
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Select all that apply.
A food chain or food web can provide good information including _____.
how much energy is transferred from one organism to another
the types of food that are best for you to eat
the eating patterns of organisms
the flow of energy in an ecosystem
Answer:
the flow of energy in an ecosystem
the eating patterns of organisms
how much energy is transferred from one organism to another
Explanation:
A food web is an interconnection of multiple food chains and a practical representation of what-eats-what in an ecosystem, while a food chain is a linear sequence of how nutrients and energy (in the form of food) are transferred from one organism to another organism in an ecosystem. A food web contains many interconnected food chains. A food web or food chain provides information about how organisms are connected, the eating patterns of organisms, and the flow (or the amount) of energy that is transferred from one level to another through different organisms in an ecosystem.
Which is true of genes?
They are sections of DNAthat produce the proteins that control an organism's characteristics.
They are proteins that produce sections of DNAwhich control the cell's activities.
They are features that can be observed rather than measured.
They are the same as traits which show up in an organism if they are dominant.
Answer:
A. Sections of DNA that produce proteins that control an organism's characteristics
Explanation:
The other cells need these proteins in order to have a job, but they need to start from genes. Besides human traits, other organelles' dependence on them makes it vital to the life of a cell.
Answer:
Sections of DNA that produce proteins that control an organism's characteristics
Explanation:
The ________ both transports urine outside the body during urination and transports semen to the female reproductive tract during intercourse.
Answer:
Urethra
Explanation:
Answer:
The ________ both transports urine outside the body during urination and transports semen to the female reproductive tract during intercourse.
Explanation:
Urethra
Water and sodium ions are reabsorbed in the proximal tubule in a relationship that results in a(n) __________ in tubular fluid volume that is __________ to plasma.
Water and sodium ions are reabsorbed in the proximal tubule in a relationship that results in a decrease in tubular fluid volume that is isotonic to plasma.
What do you mean by Proximal tubule?A Proximal tubule may be defined as the portion of the nephron that lies in between Bowman's capsule and the loop of Henle.
The major function of the proximal tubule is to reabsorption of sugar, sodium, chloride ions, and water from the glomerular filtrate. It decreases the volume of tubular fluid.
Therefore, water and sodium ions are reabsorbed in the proximal tubule in a relationship that results in a decrease in tubular fluid volume that is isotonic to plasma.
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what are the negative effects of eating unhealthy food?
Answer:
Unhealthy food can affect the human body.
Explanation:
Eating unhealthy foods on a regular basis may contribute to health problems. Studies continue to show the negative effects of many common unhealthy food products. For optimal health and wellness, eat a balanced diet with plenty of fruits, vegetables, and whole grains -- and save the empty calories for occasional treats.
What is a renewable resource?
This is what I have so far...
a renewable source is a natural resource that can be used and replaced in a short period of time
Hi! Here to help.
The question asks, "What are renewable resources?"But really, what are renewable resources?
A renewable resource is a type of resource that can always be restocked, replaced, or renewed, regardless of conditions.
Examples of Renewable Resources;
Plants Living thingsSunlight WaterRenewable resources help us survive in many ways every single day.
If an object is being pulled toward the
center of the Earth, what force is acting
on it?
Gravitational force the force acting on the object.
Which of the following situations would someone who advocates for animal rights prefer?
A. a lion at a popular zoo
B. a cat in a wealthy home
C. a horse living in the wild
D. a goat kept on a farm
On edge
The situations would someone who advocates for animal rights prefer a horse living in the wild
What is animal rights?Animals deserve to live their lives freely without suffering and exploitation called animal rights.
So Animal rights are the principles formed in the belief that non-human animals deserve the ability to live as they wish, without being subjected to the desires of human beings.
The animal rights movement will make the public aware about the fact that animals are sensitive, emotional, and intelligent beings who also deserve dignity and respect.
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What happens to an enzyme when a competitive inhibitor binds to it?.
Answer:
The competitive inhibitor binds to the active site and prevents the substrate from binding there. The noncompetitive inhibitor binds to a different site on the enzyme; it doesn't block substrate binding, but it causes other changes in the enzyme so that it can no longer catalyze the reaction efficiently
What muscle covers the ventral, abdominal region in rats?
Answer:
the external oblique.
Explanation:
the external oblique covers the ventral, abdominal region in rats.