What are the 5 mechanisms of evolution?

Answers

Answer 1

Answer:

1. Mutation

2. Gene flow

3. Non-random mating

4. Natural Selection

5. Genetic drift

Answer 2

Answer:

They are: mutation, non-random mating, gene flow, finite population size (genetic drift), and natural selection.

Explanation:


Related Questions

in some flowers, red and white color is codominant. Flowers and be red ( RR), white (rr) or pink (Rr) if two pink flowers are crossed! what percentage of the offspring will also be pink ?

Answers

Answer:

50%

Explanation:

If you do a punnet square you get 1 RR: 2 Rr: 1rr

Which of the following is accomplished by absolute dating? A. It allows us to measure an object's age in years. B. It allows us to preserve organic material. C. It allows us to identify the elements in an object. D. It allows accurate knowledge of future seismic events. ​

Answers

Answer:

A. it allows us to measure an object's age in years


There are almost 10,000 known bird species on the planet. How did they evolve into so many unique forms?

Answers

Answer:

Natural selection.

Explanation:

Imagine in the beginning there was a single species of bird. Naturally, this bird had to expand to the rest of the world, and was distanced as the continents drifted off. But this bird had to cope with various climates and environments. So the bird would gradually mutate over time. The bird in the jungles of central america would develop different colors and a shaped beak, and would better help it survive. This led to being the new normal for birds of this area. It would evolve to cover all the surviving birds in the region, until it is so drastically changed then it is a new species. There are so many different environments, each with its own challenges to overcome, so so many different bird evolve to survive them.

Based on the graph, how are the trends in greenhouse gases between the years 1500 and 2000 likely to affect the climate on Earth?

Answers

Answer:

The atmosphere would retain more heat, raising global temperatures.

Explanation: got this correct!

Answer: The atmosphere would retain more heat, raising global temperatures.

Explanation:

Got it right on PLATO

Paragraph
1
-C
B 6
А A
-D
6

Answers

Answer:

A :-):-):-)

Explanation:

Hope this helps:-)

Which of the following is NOT a way to conserve and/or protect natural resources?
A throwing away plastic water bottles
B. replanting trees that have been cut down
C. taking shorter showers
D. turning the heat down at bedtime

Answers

Answer:

C) Taking Shorter Showers

Explanation:


A basketball player helps maintain stable body temperature during the game by sweating. The sweat helps cool his body by evaporating. What is this an example of?

a, mitosis
b. homeostasis
c. respiration
d. digestion

Answers

I say the answer is B
B. Homeostasis, the player is trying to maintain a constant temperature

To create a knockout mouse, after introducing to ES cells a DNA construct in which a specific gene is mutagenized by the insertion of a drug resistance marker, the cells Multiple Choice that have incorporated the transgene by homologous recombination grow in the presence of the drug and these are injected into a host blastocyst. that lack the transgene grow in the presence of the drug and these are injected into a host blastocyst. that have deleted the transgene grow in the presence of the drug and the nuclei are injected into a host blastocyst. that lack the transgene grow in the presence of the drug and the nuclei are used for nuclear transfer.

Answers

I’m not sure but if u get the answer I’ll like it

To create a knockout mouse, after introducing to ES cells a DNA construct in which a specific gene is mutagenized by the insertion of a drug resistance marker, the cells, that have incorporated the transgene by homologous recombination grow in the presence of the drug and these are injected into a host blastocyst. The correct option is A.

What is biological marker?

A biomarker is an objective measure of what is going on in a cell or organism at any given time. Biomarkers can serve as health-related early warning systems.

To create knockout mice, researchers insert artificial DNA into the chromosomes contained in the nuclei of ES cells using one of two methods.

Both methods are performed in vitro, that is, on cultured cells grown in a laboratory setting.

After introducing a DNA construct into ES cells that mutagenizes a specific gene by inserting a drug resistance marker, the cells that have incorporated the transgene via homologous recombination grow in the presence of the drug and are injected into a host blastocyst.

Thus, the correct option is A.

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PLS HELP!! ASAP DUE TONIGHT!!

The saturated fats of animals differ from the unsaturated ones of plants. Unsaturated fats have

A. higher molecular weights.

B. more metabolic processes that they participate in.

C. nitrogen atoms in their structures.

D. a higher number of double bonds between carbon atoms in their structures.

E. more functional utility in animal species, particularly in marine life forms.

Answers

Answer:

D. a higher number of double bonds between carbon atoms in their structures.

Explanation:

During DNA replication, if a portion of the original strand is CTGACTT, then the new strand will be
O GACTGAA
TTCAGTC
AGTCTGG
GACUGAA

Answers

Answer:

GACUGAA

Explanation:

it's the opposite letters

Help ASAP

Which statement applies Newton's laws of motion and gravity to explain why the Moon stays in orbit around Earth?
A.
Revolution and rotation keep the Moon in orbit.
B.
Gravity and rotation keep the Moon in orbit.
C
Rotation and inertia keep the Moon in orbit.
D.
Gravity and inertia keep the Moon in orbit.

Answers

Answer:

D

Explanation:

The Moon stays in orbit around the Earth because the Earth's gravity keeps the Moon orbiting us. The gravity makes the Moon accelerate all the time, even it's speed remains constant.

5. Which of the following catastrophic events usually affects only coastal regions?
A. floods
B. hurricanes

Answers

Answer:

both but floods are more often

Explanation:

hope it hels

What happens to a population when its size is equal to the carrying capacity?
a. Its size fluctuates wildly.
b. It increases in size.
c. Its size stays steady.
d. It decreases in size.

Answers

Answer:

C

Explanation:

When a population reachs its carrying capacity it will slow down and become steady due to the population reaching its limit on food, water, etc. and they can only feed so many.

When population size is equal to the carrying capacity then "Its size stays steady".

What is population ?

A population means the total number of individuals who cohabit in a certain area.

What is steady-state?

A biofilm that exhibits no net growth or degradation over time is usually referred to as a steady-state biofilm.

A population might slow down and stabilize once it reaches it's own carrying capacity since it will no longer be able to consume as much food, water, and other resources.

Therefore, the correct answer will be option (c)

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A gene is a small section of DNA on a chromosome.

Complete the sentences.

A gene codes for a particular sequence of...

This sequence makes a specific....

Answers

I don’t have an answer sorry

Can intersex male get their partners pregant?

Answers

Answer:

yes

Explanation:

they can produce sperm

In which domain Nd kingdom does it belong in?

Answers

Bacteria doman and kingdom

PLEASE ANSWER ASAP


Which functions are involved while eating a sandwich?

Answers

Answer:

respiratory, digestive, endocrine (i think)

The person above is correct and give them brainlest plz

Which is the correct order of energy change from greatest to least from chemical,physical, and nuclear

Answers

Answer:

physical, chemical, nuclear

Explanation:

What is the purpose of the part of the female reproductive system highlighted
below?
A. Acting as a birth canal
B. Developing a fetus
C. Transporting eggs
D. Storing eggs

Answers

thats the fallopian tube it transports the egg from the ovary to the uterus so the answer is c

The purpose of the part of the female reproductive system highlighted in the image is transporting eggs. Details about reproductive system can be found below.

What is reproductive system?

The reproductive system is the system of organs within an organism which work together for the purpose of reproduction.

The reproductive system of living organisms can either be male or female.

According to this question, the structure represented in the above image is a Fallopian tube, which functions to transport eggs from the ovary to the uterus.

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Tectonics plates float on the ?
A.outer core
B.inner core
C.mantle
D.lithosphere

Answers

Answer:

I think mantle

Explanation:

Answer:

Mantle  

Explanation:

The rocky surface floats slowly on the mantle.

Brainliest please :)

What is the main function of the organs shown

Answers

Answer:

In an organ, different tissues work together to carry out a particular function. These are the main organs, as well as their primary function: The brain controls thoughts, memory and other organs. The heart pumps blood around the body.

Explanation:

The fossil presence of anatomically modern humans in ________ demonstrates that our ancestors were capable of substantial water crossings by 40,000 years ago.

Answers

Answer:

The correct answer is - Africa.

Explanation:

Scientists found the fossils of modern humans called Mota an ancient man who lived around 40000 to 45000 years ago in Ethiopia. It was the first DNA isolated from Africa.

This DNA sample says that the Europeans have 6% of the DNA of this modern human, which suggests that there was substantial migration of people into Africa from Europe and the middle east by water crossings.

Where is the best place to live to avoid the problems caused by
climate change and why?

Answers

in the us- Anchorage, Alaska because the natural environment is far more resilient to a major weather event than a large city setting and can better adapt to changing sea levels or temperatures. With less people and man-made infrastructure, there are fewer things to be maintained in the area, allowing the wilderness to react naturally to changing weather patterns and climate.
outside the us- Denmark because the country has continued to make strides forward, in air quality in particular. On the previous report, 78.8% of the population was exposed to unsafe levels of fine particle air pollution; now, the figure has dropped to 56.9%. Denmark tops the list of countries doing the most to protect the environment, among them having at least half its energy consumption come from renewables by 2030 and to be independent of fossil fuels by 2050.

What is the original biosphere, sometimes referred to as Blosphere 1?
O
a greenhouse on the Mir space station
the planet Earth
a sealed environment in Arizona
the human body

Answers

Answer:

The correct answer is - the planet Earth.

Explanation:

Biosphere 2 is the second self-sufficient biosphere that is a research center of America that is built to study, teach and research the purpose of the earth and its biosphere. It is termed biosphere 2 because the original biosphere is the primary biosphere that self-sufficient which is called biosphere 1.

Biosphere 1 is changed altered so much since it formed in various manners including the hydrosphere, atmosphere and different matter cycles.

why are minerals important for our body? describe the 2 groups of minerals

Answers

Minerals are needed for the proper composition of body fluids, including blood, and for the proper composition of tissues, bone, teeth, muscles and nerves. Minerals also play a significant role in maintaining healthy nerve function, the regulation of muscle tone, and supporting a healthy cardiovascular system. There are two kinds of minerals: macrominerals and trace minerals.

Explanation:

.

Cystic fibrosis is an autosomal recessive disorder where a chloride ion membrane channel protein doesn't function properly. People with cystic fibrosis suffer from chronic lung infections that make breathing very difficult. They also suffer from other issues such as an inability to produce enough digestive enzymes due to problems with pancreas cells. Suppose that Chris and Shannon are both carrier of cystic fibrosis (carriers have the allele but do not exhibit the disorder). What is Chris' genotype for the cystic fibrosis gene

Answers

Answer: Typically, the genotype in those patients consists of at least one very mild mutation uncharacteristic for CF patients. These are predominantly missense or splice variants, belonging to classes IV or V producing variable amounts of functional CFTR protein at the apical membrane.

To start an action potential moving down the axon, what must happen?​

Answers

Answer:

Different ions cross the neuron membrane and stimulus causes sodium channels to open I think.

Pleasee answer quickly I will give you brainly

Answers

Answer:

1.D "The type, states, and the amount of matter in the system"

2.D "Cube #1 to Cube #3"

3.B "Material 2"

4.A "Hot water placed in containers made of different substances"

5.A "the color of matter present."

HAVE A NICE DAY(✿◠‿◠)

Today, you have learned some basic general information about bacteria that cause infections and bacteria that protect
and benefit us, living inside and on the surface of our bodies. So, here is a question for you to apply the knowledge you
gained today:
Ms. AB was traveling and caught a nasty flu on the plane. But because she had work and school she could not take any
time off to rest during her flu. 2 weeks after she contracted the flu, she no longer had the fever and sore throat, but her
nose was still stuffy, and she was suffering from sinus headaches. She went to her doctor, who diagnosed her with a
sinus infection and prescribed her a course of antibiotics. Ms. ABC took the 7 days of antibiotic therapy, but she is now
back at her doctor's office with a yeast infection and diarrhea. Explain, why Ms. ABC developed the sinus infection. Then
explain why she developed a yeast infection and diarrhea after the course of antibiotics

Answers

Answer:

Antibiotics killed the bacteria that cause infection but they can also kill beneficial bacteria . thus Ms ABC developed a yeast infection and diarrhea after course of antibiotics because antibiotics distrub natural balance of beneficial bacteria in her intestine.

Ms. ABC developed a yeast infection and diarrhea after the course of antibiotics because the exposure to antibiotics may kill beneficial bacteria which prevent other diseases to occurs in the body.

What is an Antibiotic?

Antibiotics may be defined as a type of medicine that significantly inhibit the growth of microorganisms especially bacteria inside the body of living organisms. Such type of antimicrobial substance may either kill or inhibit the growth of bacteria.

It is the most prevalent kind of antibacterial agent for conflicting bacterial infections, and antibiotic medications are tremendously utilized in the treatment and prevention of such infections.

With the effect of antibiotics, beneficial bacterial species that are living in the intestine may also be killed. Due to this, Ms. ABC becomes susceptible to other types of infections like yeast and diarrhea.

Therefore, exposure to antibiotics may significantly kill beneficial bacteria which prevent other diseases to occurs in the body.

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1. A _________
tree is used to show evolutionary relationships among organisms.
2. Binomial nomenclature names organism using their
________and________
3. What is the name of a series of questions that are used to identify an organism?

Answers

Answer:

1.ans Phylogenetic Trees

Scientists use a tool called a phylogenetic tree to show the evolutionary pathways and connections among organisms. A phylogenetic tree is a diagram used to reflect evolutionary relationships among organisms or groups of organisms.

2.ans Binomial Nomenclature Rules

The entire two-part name must be written in italics (or underlined when handwritten). The genus name is always written first. The genus name must be capitalized. The specific epithet is never capitalized

3.ans Dichotomous Key

A dichotomous key is a tool created by scientists to help scientists and laypeople identify objects and organisms. Typically, a dichotomous key for identifying a particular type of object consists of a specific series of questions.

Other Questions
Helppppppppppppppppp What do you get if you cross two different species? Depending upon the species, you might end up with a grolar bear, a wolfdog, or a Savannah cat, among many others. What do these animals have in common? They're hybrids. Sometimes hybrids happen naturally in the wild, but usually, hybrids are the result of humans selectively breeding animals.Grolar bears and pizzlies are the result of crossing polar bears and grizzly bears. These hybrids were first seen in zoos, as the bears' natural habitats did not normally overlap. Recently, these hybrids have started appearing in the wild. Due to climate change, the bears' once-separate habitats are beginning to overlap. Bigger and more aggressive than their parents, grolar bears and pizzlies could pose a risk to natural habitats and humans.Wolfdogs are, as their name suggests, the result of crossing a wolf with a domestic dog. Bred for the pet trade, these hybrids do not often happen in the wild. Wolfdogs do not make good pets, however, as they can be destructive and aggressive. Many states have outlawed keeping wolfdogs because they can pose a danger to people.Savannah cats are another example of human-made hybrids that were developed to be pets. Savannahs are the result of crossing a small wildcat called a serval with a domestic housecat. They look like miniature versions of the wildcat, which is why many people like keeping them as pets. Like the wolfdog, however, Savannahs do not make ideal house pets. They can be destructive, and usually, they keep the wild nature of the serval.There are many more examples of human-made hybrid animals. Some hybrids, such as the mule, have been helpful to humans. Unfortunately, others, like the wolfdog or Savannah cat, should not have been made in the first place.According to the text, why are bear hybrids being seen in the wild?Grolar bears and pizzlies could pose a risk to natural habitats and humans.These hybrids were first seen in zoos, as the bears' natural habitats did not normally overlap.Grolar bears and pizzlies are the result of crossing polar bears and grizzly bears.Due to climate change, the bears' once-separate habitats are beginning to overlap. Help me with this please. The graph below shows the averaged sunspots from 1610 to 2007. The graph shows sunspot number on the y axis and years 1600, 1650, 1700, 1750, 1800, 1850, 1900, 1950, and 2000 on the x axis. The graph rises and falls in a cyclic order in gaps of approximately 10 years. The number of sunspots observed in 1610 was 40, in 1650 it was 5, in 1700 it was 10, in 1750 it was 90 and the number of sunspots in 1800 was 50. The number of sunspots observed in 1850 was 130 and the number of sunspots in 1900 was 10. The number of sunspots observed in 1950 was 150 and the number of sunspots observed in 2000 was 30. Based on the graph, which of these conclusions is correct? Some of the previously warm regions became colder from 1650 to 1700. Some of the previously cold regions became warmer from 1600 to 1700. Some of the previously warm regions became warmer from 1610 to 1700. Some of the previously cold regions became colder from 1900 to 1950. Write at least 4 sentences retelling, in order, the key events in the tale of Androcles and the lion. answer the question ask. What is citizenship acquisition? purchasing citizenship from a consular office winning citizenship through good deeds becoming a citizen by having a parent from the U.S. receiving citizen sponsorship How does the monster feel after meeting the girl in the woods? A) He feels outraged and angered because the girl shot him when he was trying to help her. B) He feels more full of rage because the girl would not be his friend and travel with him. )He feels tired and broken because he has been traveling for so long and still not found the doctor. D) He feels more vengeful because he is shot in the process of saving a girl's life, Can someone help me with thiswhy do you think mauna loa erupts periodically instead of steadily Write a note to your pen pal about the kinds of music you like best. In addition, write about any instruments you might play. Be sure you use at least 3-4 complete German sentences in your response. Simplify the variable expression below as much as possible.3x + 2y + 5-3 Which of the following is a social science?A. PsychologyB. ChemistryC. MusicD. All of the Above Which of the following is a renewable resource?Question 3 options:natural gasuraniumbiomasscoal You notice that another cupboard door is in the shape of a square that is divided into two isosceles triangles. You measure the height of the cupboard to be 16 inches. What is the area of one of the triangles shown on the face of the cupboard door? Show your work. Based on the illustration on page 2, how does the author support the argument that lowering our carbon footprint is an environmental priority? Which sentence is written correctly?A. Notre htel est loin des picerie.B. Notre htel est loin de l'picerie.B Select all the sets of three side lengths that will make a triangle.2, 3, 42, 3, 52, 3, 63, 4, 53, 4, 8 WHAT WOULD YOU DO?One of your cousins wants to get revenge on the person who has bullied him or her for years. He or she asks you to help vandalize the persons property Which of the following is the quotient of the rational expression shown below? 2x+5/3x divided by 2x-1/2x+1 A prefix is a word part attached to_ a the beginning of a root word b the middle of a root word c the end of root word