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:
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What Is Chemogeny ( Chemical Evolution ) ? And Explain The Steps Of Chemogeny [Both Answer In Simple Word/ Simple Answer Which Is Easy To Concept Or Read]
Answer:
Chemogeny may be a theory of chemical evolution that depends on the chemical reactions and formation of drugs on the bases of chemical reactions. This theory says that “Life occurs as a results of evolution of inorganic matter”.
In the 1920's Scientists Oparin and Haldane, developed this hypothesis of the chemical origin of life from the primitive atmosphere of the world having matter like methane, ammonia and water. there have been very low concentrations of oxygen thanks to the presence of high temperatures like 5000-60000C. So, these conditions weren't suitable for the free existence of organic compounds, so reactions started happening .
Under conditions like high sunlight and warmth , inorganic matter gets converted to inorganic compounds. And this might end in the storage of organic compounds, which gets more and more concentrated with the passage of many years.
These compounds interact with one another and end in “life”.
So, chemogeny is that the process of chemical evolution of earth and formation of life from pre-existing matter with the assistance of chemical reactions.
Explanation:
Hopefully I was able to help you with the concept. Good luck!
Here is fs fs da last graph I need help so someone plz help me
How is it possible to find the
number of heterozygotes in a
sample population, given the
allele frequencies?
Explanation:
The frequency of heterozygous individuals. Answer: The frequency of heterozygous individuals is equal to 2pq. In this case, 2pq equals 0.32, which means that the frequency of individuals heterozygous for this gene is equal to 32% (i.e. 2 (0.8)(0.2) = 0.32
To find the number of heterozygotes in a sample population, we need to know the allele frequencies and the total number of individuals in the population. The formula used to calculate the expected number of heterozygotes in a population is based on the Hardy-Weinberg equilibrium principle.
The Hardy-Weinberg equation is given as:
p² + 2pq + q² = 1
Where:
p = frequency of one (dominant) allele
q = frequency of the other allele (recessive) allele
p² = expected frequency of homozygous dominant individuals
2pq = expected frequency of heterozygous individuals
q² = expected frequency of homozygous recessive individuals
To find the number of heterozygotes, we can multiply the expected frequency of heterozygotes (2pq) by the total population size. This will give us an estimate of the number of individuals in the population who are heterozygous for the specific gene of interest.
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3
A
C
9
12
15
What do the dotted lines, indicated with the arrow, represent in the DNA model above? (B.6A)
Answer:
[tex]\fbox\red{question\:given}[/tex]
[tex]\blue{what \:is\: photosynthesis}[/tex]
[tex]\huge\fbox\red{Answer↓}[/tex]
[tex]the \: process \: by \: which \: green \: plants \: \\ turn \: carbon \: dioxide \: and \: water\\ \: into \: food \:using \: energy \: \\from \: sunlight.[/tex]
Answer it correctly please
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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Here is a diagram of the digestive system. Where do you think lactase would be most effective? Explain. Be sure to consider the amount of time lactose/food would spend in each area.
Lactase will most likely be found in the small intestine and food spends the largest time there.
The digestive system refers to all the structures that are responsible for the breakdown of food in the body. In each part of the digestive system, enzymes act on the food particles to enable certain conversions.
The enzyme lactase in involved in the digestion of milk and diary products. The enzyme has an optimum pH of about 6 hence it works in an acidic environment. Lactase is found in the small intestine.
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Individuals that are better suited to their environment are likely to have more offspring and pass their genetic material onto future generations. This theory is referred to as ____.
Question 1 options:
Use and Disuse
Endosymbiosis
Evolution
Natural Selection
Answer:
Natural selection
Answer:natural selection
Explanation:
Based on the diagram,which statement is NOT true?
Explain how natural disasters can change the characteristics of a species for many generations after the disaster. To develop this discussion you will need a minimum of 2 paragraphs.
Answer:
Strong volcanic eruptions and fires can temporarily change regional weather, cooling or heating the air, changing winds, or causing rain. Volcanoes, storms, and floods can kill marine animals directly, or cause long-term problems by depositing debris and affecting the temperature and salinity of water.
Natural disaster especially such as forest fires and hurricanes have the potential to threaten these endangered species to the point of extinction. ... The fires destroy the animals habitats including their homes, nesting grounds, food, and winter shelters.
After a natural disaster, the community will often go through ecological succession and return to the state it was pre-diaster. Healthy ecosystems will bounce back, as natural disasters have occurred on earth for a long time. ... Healthy ecosystems are adapted to withstand natural disasters over the long time.
what is sugar converted into if your body does not metabolize it
Answer: It's starts burning body fat.
Explanation:
An animal is grouped as an insect if it has:
eight legs
six legs
Or a backbone
Answer: six legs :)
4. What is a function of the nucleus of an animal cell?
A. It is the place where energy is produced.
It stores the genetic information, the DNA (chromosomes).
C. It defends the cell from infections.
D. It captures sunlight to produce food.
5. Select a statement that best completes the phrase below. In a plant
Answer:
A. It is the place where energy is produced.
It stores the genetic information, the DNA (chromosomes).
Explanation:
28 The statements describe four different plants.
Which plant must be a monocotyledon?
A The flowers are wind-pollinated.
B The flowers each have five petals.
The leaves are large with a clear network of veins on them.
The leaves have parallel veins.
Answer:
The leaves have parallel veins
PLEASE HELP WITH THIS ONE QUESTION
Answer:
Fourth option
Explanation:
ATP - Adenosine Triphosphate (3Ps), ADP - Adenosine Diphosphate (2Ps). ATP breaks down into ADP because it loses a Phosphate Anion in whatever process that the ATP is becoming ADP.
In the image provided, fourth image shows how ATP breaks down into ADP. Option D is the correct answer.
ATP (adenosine triphosphate) is a molecule that stores and provides energy for cellular processes. When ATP is used, it undergoes a process called hydrolysis, where a water molecule is used to break a high-energy phosphate bond in ATP. Option D is the correct answer.
During this hydrolysis process, one of the phosphate groups in ATP is cleaved off, resulting in the formation of ADP (adenosine diphosphate) and an inorganic phosphate (Pi). The energy stored in the phosphate bond is released, making it available for cellular functions. The breakdown of ATP into ADP allows the released energy to be utilized by cells for various activities, such as muscle contraction, active transport, and synthesis of molecules.
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resistance to exploitation is a battle of wits with your captor
The statement is false because resistance to exploitation is not related to wits.
What is social exploitation?Social exploitation is understood as a social relationship in which some people are abused or used for the benefit of others due to their belonging to that category or status.
An example of social exploitation was slavery in which African blacks were used for different purposes during the colony because they belonged to indigenous communities in Africa.
In the example above, Africans had to submit to their captors by force and had no opportunity to oppose it because resistance to exploitation is not a matter of wits.
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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.
Which statement accurately compares these flashlights?
O A. The smaller flashlight has less inertia than the larger flashlight, so
it takes less force to change the motion of the smaller flashlight.
O B. The smaller flashlight has more inertia than the larger flashlight,
so it takes more force to change the motion of the smaller
flashlight.
C. The smaller flashlight has less inertia than the larger flashlight, so
it takes more force to change the motion of the smaller flashlight.
O D. The smaller flashlight has more inertia than the larger flashlight,
so it takes less force to change the motion of the smaller
flashlight
The smaller flashlight has less inertia than the larger flashlight, so it takes
less force to change the motion of the smaller flashlight.
Inertia is defined as the property of an object to resist changes in its velocity
when in motion. A larger or bigger body has more mass and inertia as it
requires more force to change the direction of the object.
The smaller flashlight has less inertia than the larger flashlight and hence
requires less force to change its motion due to its smaller size.
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[answers included, 100% on assignment]
1. Compared to today’s corn plant, teosinte:
✔ (c) is shorter and has more branches.
2. About how many genes were involved in producing the dramatic differences between teosinte and modern corn?
✔ (b) 5
3. he gene for which of the following traits changed early in teosinte domestication and caused dramatic changes?
✔ (a) kernel covering
Answer:
C
B
A
Explanation:
Which scenario describes an interaction between two of Earth’s spheres?
Water flows from a stream to a lake.
Gravity moves rocks to another location.
Lions use energy to catch other animals for food.
Bears dig big holes in the ground to protect their young.
Answer:
The scenario that describes an interaction between two of Earth's spheres is "bears dig big holes in the ground to protect their young".
Explanation:
The Earth spheres include the biosphere, the hydrosphere, the geosphere, and the atmosphere. In this context, there is an interaction between two spheres: the biosphere and the geosphere, when a bear digs holes in the ground because a living organism that is part of the biosphere is modifying the structure and shape of superficial soil, which is part of the geosphere.
Write any two adaptational characteristics of camel on the basis of habitat.
According to Hebrews 11, what did Abraham believe God would do if Isaac was slain as a sacrifice?
Answer: Isaac
Explanation:
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!
~AH1807My dad scolded me i don’t wanna live with him I hate him
I hate my biology teacher but he’s such a D.a.d.d.y
Answer: Dam
Explanation: Dammmmmmmmm
Match the materials below to the BEST option describing their place in the cycles of photosynthesis and cellular respiration.
Some options may be used more than once or not at all.
Plant and animal cells are both eukaryotic. This means they...
O Have a nucleus
O Contain DNA and RNA.
O Can reproduce on their own.
What is the function of the structure labeled C in the diagram to the right? it is where water, dissolved substances, and urea are filtered out of the blood.
Answer:
B. It captures the substances filtered out of the blood.
Explanation:
Edge 2021
Answer: B
It captures the substances filtered out of the blood.
Explanation:edge 2022
The desertification of an area from deforestation due to mining gold would be a(n) ___ cost of the gold.
indirect
direct
Answer: the answer would be indirect
Proteins are synthesized based on genetic information carried by DNA. Explain In you’re own words how the structure of DNA is important in the
synthasis of different kinds of proteins, In your explanation, include a description of the two main processes involved in
protein synthesis.
Answer:
Explanation:The synthesis of proteins occurs in two sequential steps: Transcription and Translation. Transcription occurs in the cell nucleus and uses the base sequence of DNA to produce mRNA. The mRNA carries the message for making a specific protein out to the cytoplasm where translation occurs.