Which of the following is a characteristic of mitochondria that suggests that they might have evolved from free living bacteria? A. The plasma membrane of a mitochondrion, forming the surface of this organelle, is the site of many important steps of cellular respiration. B. Mitochondria have cell walls. C. Mitochondria have their own DNA. D. Mitochondria rely upon proteins as their source of energy.
Answers
C. Mitochondria have their own DNA. suggests that they might have evolved from free-living bacteria.
The majority of the chemical energy required to power the cell's biochemical reactions is generated by mitochondria, which are organelles of the cell that are bound by a membrane (mitochondrion, singular). A small molecule known as adenosine triphosphate (ATP) stores the chemical energy produced by the mitochondria.
Mitochondria and Chloroplasts Could Have Been Primitive Bacterial Cells: This is supported by compelling evidence. The endosymbiotic theory describes this evidence. They have their own transcriptional and translational machinery as well as their own DNA, which is circular like that of bacteria. Bacterial membrane components, mitochondrial ribosomes, and transfer RNA molecules are comparable. Bacterial membrane components, mitochondrial ribosomes, and transfer RNA molecules are comparable.
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Related Questions
Which of the following best explains why some species are able to survive major changes in the environment?
A
Some species have variation within their phenotypes, giving individuals an advantage for surviving change.
B
Some species are able to reproduce at a fast rate, creating large populations that ensure some individuals will survive.
C
Some species have identical genotypes, making them immune to change in the environment.
D
Some species are genetically similar, ensuring that they will reproduce offspring that will not change traits.
Answers
Some species are able to reproduce at a fast rate, creating large populations that ensure some individuals will survive.
List at least three ways the structure of human teeth serve the function of eating meat and plant material
Answers
Answer:
Yes it help in this function
Break down (Just like I'm having one)
Chew (My account was chewed down to this)
Rip (Rest in peace my banned account that I had expert on)
In other words, B.C.R this is a real answer. So dont go reporting me
Is crick and Watson a type of genetic test
Answers
No, "Crick and Watson" is not a type of genetic test. Crick and Watson refer to James D. Watson and Francis Crick, who were scientists involved in the discovery of the structure of DNA. They proposed the double-helix structure of DNA in 1953, which provided the foundation for understanding genetic information and its role in heredity.
Genetic tests, on the other hand, are laboratory tests that analyze an individual's DNA or genes to provide information about their genetic makeup, potential genetic disorders, or predispositions to certain conditions.
These tests can be used for various purposes, such as diagnosing genetic disorders, predicting the risk of developing certain diseases, determining carrier status for genetic conditions, or providing ancestry and genealogical information.
While Crick and Watson made significant contributions to the field of genetics, they are not directly associated with genetic testing. Genetic tests are based on scientific advancements and technologies developed after their groundbreaking discovery of the DNA structure.
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A plant and an animal are both living things. According to the Cell Theory, what can you conclude about these two very different organisms?
Answers
They are both made of one or more cells.
Animal cells have centrosomes and lysosomes but plant cells do not. Plant cells have cell wall chloroplasts other specialized plastids, and a large central vacuole, whereas animal cells do not. Cell theory states that cells are the basic building blocks of all living organisms and that all organisms be they plants or animals, consist of one or more cells.
He also states that new cells can only arise from existing cells and that organisms can grow and multiply because cells can divide. Animal cells and plant cells are similar in that both are eukaryotic cells. These cells have a true nucleus that houses the DNA and is separated from other cellular structures by a nuclear membrane. Both cell types have similar reproductive processes including mitosis and meiosis.
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An investor wants to save money over a long period of time. This investor does not need to have easy access to the money and is worried about losing any money. Knowing the interest rate and that it will not change is important. Which investment best meets this investor's needs?
Answers
Answer:
An annuity
Explanation:
An annuity enables you to store your money with a decent interest rate while adding on money periodically if you want. Eventually after a set amount of years (usually 20-40 years), it will produce a lot of money in the end.
What is true about the cells that make up a person’s body ?
Answers
Answer:
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.
Explanation:
James wants to know which brand of shoe will help him run faster. He thinks the more expensive shoe should be the one that helps him run faster. He tries three different types of running shoes. He runs one lap on the track with pair of shoes ( shoe A) and times how long it takes. He rests for 15 minutes. Then, he tries on another of shoes (shoe B) and runs a lap around the track, while timing how long it takes. He rests for 15 minutes before repeating the lap with the last brand of shoes (shoe C). Which type of investigation did he plete ?
Answers
Answer: shoe c
Explanation: shoe c he ran 3 laps in total
why are cell walls so important for plant cells
A. they prevent the cell from bursting
B. they control the cells activities
C. they provide water to the cells
Answers
Answer:
Cell wall prevents the cell from bursting.
What type of energy could be the future of energy ?
A. Fusion energy
B. Fission energy
C. Tidal energy
D. Orbital energy
Answers
the question i really wanna know is how smart is a fish???
Answers
Answer:
Fish are more smarter than they appear they have long-term memories to help them keep track of complex social relationships. :0
Explanation:
What are the three goals of integrated pest management (IPM)?
A) to reduce the use of insecticides, increase consumer costs, and
conserve water
B) to reduce the use of insecticides, increase farmer costs, and conserve
water
C)to reduce the use of artificial pesticides, reduce costs, and control pests
D) to reduce the use of artificial pesticides, reduce costs, and increase
salinization
Please select the best answer from the choices provided
Ο Α
B
Answers
The correct answer is C. To reduce the use of artificial pesticides, reduce costs, and control pests.
Explanation
Integrated pest management (IPM) is a method that integrates different practices and scientific principles to make adequate management with pests. This method considers knowledge about the habits, life cycle, needs, and aversions of the pest, reducing the use of toxic methods and implementing less toxic methods, monitoring pest activity and adjusting methods over time, tolerating harmless pests, setting a threshold to decide when it is time to act, among others as its main principles. Therefore, the correct answer is C. To reduce the use of artificial pesticides, reduce costs, and control pests.
why unraveling past climate changes is important and discuss several ways in which such changes are detected
Answers
Unraveling past climate changes is important because it helps us to understand the causes and consequences of climate change.
What is climate change?Climate change refers to the long-term changes in temperature and weather patterns. These may be natural or man-made changes.
Some examples of climate changes include sea level rise, rapid loss of ice mass loss in Greenland, Antarctica, and the Arctic, changes in floral and plant blossoming, and extreme weather occurrences.
Some methods by which past climate changes can be detected include:
Ice cores provide information on past climatic and weather conditions.Tree rings give information about past weather conditions.Sediment coresFossil recordsHistorical recordsLearn more about climate change at: https://brainly.com/question/1789619
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Complete question:
Explain why unraveling past climate changes is important and discuss several ways in which such changes are detected.
Which systems are involved with the breakdown and delivery of nutrients from recently eaten food to the cells and the removal of waste materials from the body?
A. excretory, skeletal, and digestive
B. digestive, nervous, and endocrine
C. excretory, circulatory, and nervous
D. digestive, circulatory, and excretory
Answers
Answer:
a
Explanation:
aaa
Both plant and animal cells have
Answers
Answer:
Both animal and plant cells have mitochondria
Explanation:
May help........
this is responsible for providing shape to the cell
Answers
The small stem like structure that attaches the leaf to the plant stem is called the:
Answers
Answer:
Petiole also known as the leaf stalk attaches the leaft to the rest of the plant
2. What differences, if any, did you observe in Air Quality Index and particulate matter concentration from day to day? State a possible explanation. Include a table of Air Quality Index and concentration of particulate matter during the time span of the field study.
Answers
The Air Quality Index is the system that js used to warn the public when air pollution is dangerous.
How to illustrate the information?An overview will be given as the information is incomplete. It should be noted that the AQI tracks ozone and particle pollution as well as four other widespread air pollutants
It should be noted that the air quality is measured with the Air Quality Index. The AQI works like a thermometer which runs from 0 to 500 degrees.
Our air quality index is calculated based on averages of all pollutant concentrations measured in a full hour, a full 8 hours, or a full day.
In conclusion, the Air Quality Index is the system that js used to warn the public when air pollution is dangerous.
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Question 3 (5 points)
Tommy comes home from a long day at school and opens his laptop to unwind. He
looks at his best friend Jack's social media profile and sees both negative and
positive pieces of Jack's digital reputation. From Jack's profile, which post is an
example of Jack's positive digital reputation?
A picture of Jack that shows him pouring alcohol for a friend
O A comment that says, "Congratulations, Bill, on getting the award. You deserve
it!"
A comment about last night's game that includes inappropriate language
A music video for a recent rap song with inappropriate words and images
Answers
An example of Jack's positive digital reputation from his profile is a comment that says, "Congratulations, Bill, on getting the award. You deserve it!" (option B).
What is digital reputation?Digital reputation is the digital footprint created by all the things you say and do online, as well as what others post about you.
The people and sites one follows, the content one posts, likes or shares, and the comments one makes, all contribute to ones digital reputation.
According to this question, Tommy looks at his best friend, Jack's social media profile and sees both negative and positive pieces of Jack's digital reputation. The positive digital reputation is as mentioned above.
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p53 is critical to preventing damage to a genome from being transmitted to next generation. To do this, p53 can control cell division cycle and help repair of DNA damage by controlling gene expression. At the same time, p53 plays central role in inducing cell death. What molecular feature of p53 function, and cellular regulation of p53 activity, enable these different p53 functions in cell division and cell death? (4 pts)
Answers
The molecular feature that allows p53 functions in both cell division and cell death is the ability to regulate the transcription of a battery of genes which includes more than 500 genes in the cell.
What is the p53 transcription factor protein?The p53 transcription factor is a tumor suppressor protein that is able to regulate the cell cycle by activating the expression of other proteins associated with the inhibition of this process.
Moreover, p53 is also able to act as an apoptotic protein by promoting the expression of genes associated with programmed cell death.
Therefore, with this data, we can see that the p53 transcription factor protein is a dual-functional protein that is recognized as a tumor suppressor capable of inhibiting the progression through the cell cycle by activating specific genes and signaling cascades associated with these processes.
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the designations phe-, leu-, and ser+ refer to an organisms
A. plasmid type
B. genotype
C. phenotype
D. mutation type
Answers
The designations phe-, leu-, and ser+ refer to an organisms phenotype.
The phenotype (from Ancient Greek (phan) 'to appear, display, shine' and o (tpos)'mark, type') is the set of observable qualities or features of an organism in genetics.
The phrase encompasses the organism's morphology (physical shape and structure), developmental processes, biochemical and physiological features, behavior, and behavioral outcomes. The manifestation of an organism's genetic code (its genotype) and the effect of environmental circumstances determine an organism's phenotype.
Both variables may interact, influencing the phenotypic further. When two or more obviously distinct phenotypes of a species coexist in the same population, the species is said to be polymorphic.
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I NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Laaj made a Venn diagram to compare and contrast the two stages of cellular respiration.
Which belongs in the area marked X?
(A) Energy is released.
(B) Oxygen is used up.
(C) Glucose is broken down.
(D) Carbon dioxide is used up.
Answers
The area marked X on Laaj's Venn diagram indicates that (C), Glucose is broken down.
What is the process of cellular respiration?
The first stage of cellular respiration is glycolysis. It takes place in the cytoplasm of the cell and involves the breakdown of glucose into two pyruvate molecules, producing a small amount of ATP and NADH.
Cellular respiration is the process by which cells convert nutrients into energy in the form of ATP (adenosine triphosphate). The process occurs in three main stages: glycolysis, the Krebs cycle, and the electron transport chain.
Overall, cellular respiration allows cells to convert the energy stored in nutrients into a form that can be used to fuel the cell's activities.
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What are three ways in which Canyons can be impacted by natural processes, including both constructive and destructive processes?
Please write if it is constructive or destructive next to it.
I need answers quickly, please, and I will rate brainliest!
Answers
Answer:
In this way Constructive and destructive geological processes
Explanation:
Landforms are a result of a combination of constructive and destructive forces. Collection and analysis of data indicates that constructive forces include crustal deformation, faulting, volcanic eruption .
does a dog like me? Is scientific or nonscientific
Answers
Answer:
dogs loves there owners and to be a owner you must love and to love you need to really love :)
Explanation:
so if your a good person to call your self a owner then yes you are!!!
Answer:
Non scientific.
Explanation:
Whether or not a dog likes you cannot be truly proven, and is more of a subjective query. A dog cannot really like or dislike a person. They can trust or not, they can be loyal or not, dominating or not, and such things, but “like” is an extremely opinionated term.
HURRY PLZ A banana plant produces rhizomes, which are involved in
Answers
Answer:
Sexual reproduction Asexual reproduction Pollination
Which of the following represents an in vivo method for cultivating viruses.
a.) HeLa cells
b.) Pure bacterial cell cultures
c.) Embryonated chicken eggs
d.) Lung cell culture
Answers
Embryonated chicken eggs represents an in vivo method for cultivating viruses. (option c)
To cultivate viruses in a living system, an in vivo method is used. Among the options provided, embryonated chicken eggs are the most commonly used method for culturing viruses in a living organism.
HeLa cells: HeLa cells (a) are human cancer cells commonly used in laboratory research, but they are not a living organism suitable for virus cultivation.
Pure bacterial cell cultures: Bacterial cell cultures (b) are often used to study bacteriophages, which are viruses that infect bacteria. However, this method involves culturing viruses in bacterial hosts and does not involve a living organism.
Embryonated chicken eggs: Embryonated chicken eggs (c) are a widely used method for virus cultivation. In this method, viruses are injected into the developing embryo, which provides an environment for viral replication. The embryos provide a controlled and nutrient-rich environment for the viruses to grow and propagate.
Lung cell culture: Lung cell culture (d) involves growing lung cells in a laboratory setting. While this method can be used to study certain viruses, it is an in vitro (outside a living organism) method rather than an in vivo method.
In conclusion, the in vivo method for cultivating viruses among the options provided is embryonated chicken eggs. This method provides a living system in which viruses can replicate and propagate. (option c)
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Emma is examining evidence from a robbery. She hypothesizes that the robber entered the home from the garage, but when she investigates this, she can't find any signs of forced entry or any physical evidence that supports this. What should her next step be?A.
create another hypothesis
B.
conduct another experiment
C.
draw a conclusion
Answers
A. Emma's next step should be to create another hypothesis. Since there is no physical evidence to support her initial hypothesis, she should consider alternative possibilities and gather more information to support a new hypothesis.
This could involve examining other possible entry points, speaking with witnesses or neighbors, or collecting additional evidence from the scene. It is important to continue testing and refining hypotheses until there is sufficient evidence to draw a conclusion.
What is hypothesis?
A hypothesis is an educated guess or proposed explanation for a phenomenon or observed event. It is a tentative explanation that can be tested through further observation, experimentation, and analysis of data. A hypothesis is often based on prior knowledge or observations and serves as a starting point for further investigation.
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Complete question is: Emma is examining evidence from a robbery. She hypothesizes that the robber entered the home from the garage, but when she investigates this, she can't find any signs of forced entry or any physical evidence that supports this. What should her next step be create another hypothesis.
What are the two key stages of meiosis after prophase 1 ?
Answers
Answer:
The second division is meiosis II: this division is like mitosis; the number of chromosomes does not get reduced.
Answer:
There are two divisions in meiosis; the first division is meiosis I: the number of cells is doubled but the number of chromosomes is not. This results in 1/2 as many chromosomes per cell. The second division is meiosis II: this division is like mitosis; the number of chromosomes does not get reduced.
Chris is studying oxidation and reduction reactions. Which of the following could she use as an example of an oxidation reaction?
Answers
Answer:
This question lacks options, the options are as follows:
A. formation of ATP from glucose during respiration
B. formation of carbohydrates from carbon dioxide during photosynthesis
C. formation of oxygen from water molecules during photosynthesis
The answer is A. formation of ATP from glucose during respiration
Explanation:
Oxidation reaction is a type of reaction that involves the loss of electrons (e-) by a compound or molecule. The compound/molecule that loses the electron is said to be OXIDIZED.
According to this question, Chris is studying oxidation and reduction reactions (redox). An example of oxidation reaction she could use is FORMATION OF ATP FROM GLUCOSE DURING RESPIRATION. Glucose (C6H12O6) undergoes series of oxidation reactions in glycolysis, Krebs cycle and ETC, as it loses electrons to eventually produce energy (ATP).
What are Physical characteristics of an organism not genetically passed down called?
Answers
According to the research, the correct answer is phenotype. The physical characteristics of an organism not genetically passed down are called phenotype.
What is phenotype?It is the observable property in an organism, the result of the interaction between its genotype and the environment in which it is expressed.
In this sense, these physical and morphological characteristics are manifestations of hereditary content that have undergone certain changes due to the influence of the environment.
Therefore, we can conclude that phenotype are the physical characteristics of an organism, product of the expression of the genotype and the conditions of the determined environment.
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About how wide are the growth rings for the Rainy years.
Answers
Answer:
About 0.6 cm 5.
Explanation: