Answer:
Margulis theorized that eukaryotic cells (cells with nuclei) evolved from a symbiosis of bacteria without nuclei that had previously lived independently. ... This serial endosymbiotic theory, or SET, gave a new view of evolution and helped explain the origin of cells with nuclei.21-Oct-2008
Works written: Origin of Eukaryotic Cells, Symbiosis in Cell Evolution, Microcosmos ...
Professions: biologist, scientists
Spouse: Carl Sagan
Explanation:
hope this helps Please mark Brainlist
Which of the following is an example of gene flow?
O The movement of people on Earth steadily increases and alters the course of human evolution
An earthquake results in the formation of a canyon, splitting a population of toads apart
O A fire drastically reduces the size of a white-tailed deer population. The remaining individuals spread out throughout the remaining forest
A small population of grasshoppers gets blown away and isolated during a storm. The gene pool of the new population is different from the original population
An example of gene flow is: A. The migration/movement of people on Earth which gradually increases and alters the course of human evolution.
What is Gene Flow?Gene flow, which can also be referred to as gene migration, is the transfer of genes or genetic material from one population of a species to another.
Migration of humans from one region to another leads to people of one race intermarrying with people of another entire race.
For example, A European migrating to North America, and getting married to a North American thereby giving birth to offspring exhibiting traits of booth a European and a North American. A gene flow has occurred.Therefore, an example of gene flow is: A. The migration/movement of people on Earth which gradually increases and alters the course of human evolution.
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Answer:
A
Explanation:
I took the test
This image shows the many
arteries and veins making up
the circulatory system. Which
of these delivers OXYGEN-
POOR blood from the body
back to the heart?
A. arteries
B. veins
C. neither of these
Answer:
B
Explanation:
our atmosphere contains 78% free
Answer:
nitrogen
Explanation:
4. Murphy ends her talk by saying, "It's not about the robots. It's about the data."
What does she mean by this? How is this pertinent to severe weather disasters?
Answer:
At the end of Murphy's talk she says it's not about the robots it's about the data meaning it is not about the robots but the data collected by the robots . This is relevant to natural disasters because robots can collect data more efficiently and with higher resolution better than we could without them. Also the robots collect this data in just seven hours when it normally takes up to two to three days.
Explanation:
I had the same question in my high school class and got 100%
Which organism is able to form organized patterns of behavior through the process of integration because it has ganglia? A grasshopper B mouse C Flatworm D shark
Answer:
Flatworms
Explanation:
In the pregnancy time the embryonic cells are developed into different types of cells,tissues,organs How??
Answer:
The embryonic stage plays an important role in the development of the brain. Approximately four weeks after conception, the neural tube forms. This tube will later develop into the central nervous system including the spinal cord and brain. The neural tube begins to form along with an area known as the neural plate.
Explanation:
what is the nuclelus funcion?
Answer:
The nucleolus is the most conspicuous domain in the eukaryotic cell nucleus, whose main function is ribosomal RNA (rRNA) synthesis and ribosome biogenesis.Explanation:
The monomer of a lipid if amino acids.
True
False
Some female peacocks prefer males with large, colorful tales while other female peacocks
prefer males with no tail at all. Females are beginning to only mate with the type of males
with the tail they prefer. What type of reproductive barrier is this?
mechanical isolation
temporal isolation
0 0
geographic isolation
behavioral isolation
Answer:
The answer is Behavioural isolation.
Hope that helps. x
I’m sick of my parents I want a sister
In nature why do sediments settle from water? The water must blank or blank
Answer:
These benefits occur due to sediment deposition – when suspended particles settle down to the bottom of a body of water. This settling often occurs when water flow slows down or stops, and heavy particles can no longer be supported by the bed turbulence.
Answer:
because they are soft
Explanation:
and that why they swim
Match each energy source with the correct disadvantage.
1. carbon dioxide emissions cause global warming
coal
2. drilling destroys habitats and ecosystems
hydroelectric power
3. dams prevent salmon from swimming upstream
nuclear power
4. radioactive waste is dangerous to all living organisms
oil
I WILL MARK YOU BRAINLYSSSSS
What is one of the results of an increase in the amount of greenhouse gases in the atmosphere?
А
increased overall ocean salinity
B
decreased global polar ice melting
с
increased overall atmospheric humidity
D
decreased global surface temperatures
Answer:
C) Increased overall atmospheric humidityIncreasing overall atmospheric humidity is the result of an increase in the amount of greenhouse gases in the atmosphere. Therefore, option C is correct.
What are greenhouse gases?The gases that trap heat in the earth's atmosphere are referred to as greenhouse gases. The earth's surface warms during the day when the light beams through the atmosphere. The earth's surface cools at night, redistributing heat into the atmosphere. However, part of the heat is captured by the atmosphere's greenhouse gases.
Due to minute concentrations of water vapor (H2O), carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) in the atmosphere, the Earth has a natural greenhouse effect.
Increasing overall atmospheric humidity is the result of an increase in the amount of greenhouse gases in the atmosphere. Therefore, option C is correct.
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Fill in the blanks below with the correct word to complete the sentence.
Water is warmed by the sun and
It is then cooled and
Finally, it is brought back to Earth in the form of
Answer:
Evaporates, Condensed, Liquid Water
Explanation:
Water is warmed by the sun and evaporates
It is then cooled and condensed
Finally, it is brought back to Earth in the form of Liquid Water
Answer:
Fill in the blanks below with the correct word to complete the sentence.
Water is warmed by the sun and evaporate
.
It is then cooled and condensation
.
Finally, it is brought back to Earth in the form of
Water
⇒ precipitation.
Explanation:
got it right 9/23/22
I hate my biology teacher but he’s such a D.a.d.d.y
Answer: Dam
Explanation: Dammmmmmmmm
Remove the roller bearing fastened to the shaft:
A. Dumplings in bearings.
B. Close the ring in the bearing or the ring in the bearing.
C. Close the ring in the bearing.
D. Roll out the outer ring of the bearing.
Answer:
B-Close the ring in the bearing or the ring in the bearing.
Explanation:
hope it's help
What are The electrons that are lost gained, or shared in chemical bonds
Answer: Valence electrons
Explanation: Valence electrons of the elements in the bond are shared. The gain , loss , or sharing of electrons occurs in every chemical bond.
Hope This Helps :)
A homo-zygous round seeded plant is crossed with a homo-zygous wrinkled seeded plant. Round R is dominant to wrinkled r.What alleles would be in the gametes of the round seeded plant?
A. R,r
B. RR
C. Rr
D. R,R
Identify the animal products and by-products you use throughout an entire day, and log them in a journal. Submit your journal and your reflection.
Answer: Products from animals include meat and meat products, poultry products (meat and eggs), fish, shellfish, dairy products (milk and cheese), and non-food products such as fiber (wool, mohair, cashmere, and leather).
Explanation:
Can people develop PTSD vicariously? How different are the experiences of those who develop PTSD vicariously compared with people who develop it through firsthand experience?
Answer: certain people can develop PTSD vicariously some people cant but some can there is a huge difference between them people that experience in first hand have some what worse PTSD becuase it was first hand and not vicariously
Explanation:
trust me
HELP !!!!!!!!! IM SOOO CONFUSED
Different leads are used to measure the ECG because
Select one:
a.
measurement of heart rate depends on which lead is used to measure it
b.
the signal has a larger amplitude on some leads so it is easier to measure
c.
it is easier to attach some leads to the patient
d.
the interval between ECG events differs on the different leads
e.
they provide information on the spread of the heart beat and to help diagnose which areas of the heart are affected by pathology
Answer:
e.
Explanation:
they provide information on the spread of the heart beat and to help diagnose
Need help right now can’t figure it out
Answer:
[tex]\huge\boxed{Alkane.}[/tex]
Explanation:
The given compound is an alkane because all the bonds between carbon are single. Alkanes have all single bonds and are thus called saturated hydrocarbons.
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Which famous scientist developed a theory over 350 years ago that helps to explain the characteristics of gravity?
Edison
DaVinci
Bell
Newton
Answer:
Try Newton as your scientist
Deana applies the data in the table to calculate the rate of population increase or decrease of each country. Which assumption is necessary for Deana’s calculations to be accurate?
It should be noted that population is simply used for the determination of the economic activity of an area or country.
Your information is incomplete. Therefore, an overview of population will be given. Population simply means the inhabitants of a particular place or the number of organisms living in an area.
The increase or decrease in the rate of population is calculated by the formula:
= (New population - Old population) / Old population × 100
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8. If brown (B) noses are completely dominant to blue (b) noses, write
genotypes combinations and phenotypes you could have in any given individual.
A gene or trait that appears or expresses itself over a recessive trait is called
Answer:
it is called a dominant gene
Answer:
Its called a dominant gene.
Explanation:
"A dominant gene, or a dominant version of a gene, is a particular variant of a gene, which for a variety of reasons, expresses itself more strongly all by itself than any other version of the gene which the person is carrying, and, in this case, the recessive."
A dowry is:
A.
Money or property given by a man to or for his bride
B.
A gift given by the bride to her mother-in-law
C.
Money or property given by a man to his parents
D.
Money or property given by the bride to her parents
Answer:
B
Explanation:
As dowry system is the social problem in which the bride/bride's family has to give money or property to the groom's family.
The bride/bride's family has to give money or property to the groom/groom's family on their marriage.
Eukaryotic organelles can be classified into membranous and non-membranous organelles. Identify them (list them)
Answer:
fluid-filled organelles are membranous. Nonmembranous organelles are ribosomes, cytoskeleton, nucleolus, and centrosome
Explanation:
ASAP
Give an example of psuedo-science and explain why it is not considered true science.
Answer:
Astrology
Explanation:
Astrology is considered a psuedo-science because there are not rock hard scientific facts. While it may have a lot of other evidence behind it, it is not a 'scientific' science.
Explain why a spark from a firework will not hurt you as much as a cup of hot tea?
Answer:
It will not unless it contains as much energy as the cup of tea. So a tiny spark may be at 1,000 Celsius but a whole cup of tea at 90 Celsius will deliver far more heat (energy) to the skin as the spark.