Answer:
The acts speakers perform when they make an utterance are called speech acts.
A speech act is an utterance that serves a function in communication. We perform speech acts when we offer an apology, greeting, request, complaint, invitation, compliment, or refusal. ... Here are some examples of speech acts we use or hear every day: Greeting: "Hi, Eric.
Explanation:
One important area of pragmatics is that of speech acts, which are communicative acts that convey an intended language function. Speech acts include functions such as requests, apologies, suggestions, commands, offers, and appropriate responses to those acts.
Answer: Phonation
Explanation:
What is the direction of the moving force of air? Responses
Answer:
Explanation:
The pressure gradient causes the air to move horizontally, forcing the air directly from a region of high pressure to a region of low pressure. The Coriolis force deflects the direction of the flow of air and causes the air to flow parallel to the isobars.
I hope this helped
In addition to entire species going extinct, the Anthropocene is also causing many species to ________________ which can _______________.
a. Increase in ecological niche space; decrease inter-specific competition
b. Decline in population size; lead to greater heterozygosity
c. Decline in population size; increase the detrimental effects of genetic drift
d. Increase in ecological niche space; increase coevolutionary arms races
e. Shift their life-history; increase the speed of evolution
In addition to entire species going extinct, the Anthropocene is also causing many species to Decline in population size which can increase the detrimental effects of genetic drift (Option C).
"In addition to entire species going extinct, the Anthropocene is also causing many species to decline in population size which can increase the detrimental effects of genetic drift. Genetic drift is the change in gene frequencies due to random events that are not under the influence of natural selection. Anthropocene or human-caused changes like habitat destruction, climate change, and pollution, in general, have been shown to cause declines in the population sizes of many species. This can lead to an increase in the detrimental effects of genetic drift, which can cause the loss of genetic variation and ultimately impact the ability of a population to adapt to environmental changes.
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Increased motion in the particles in a liquid allows the particles to ____
stop their flow
hold their shape
slip past one another
Slip past one another. Therefore, option (C) is correct.
What is motion in particles?Motion in particles refers to the movement or activity of the individual components, such as atoms or molecules, within a substance. In a liquid, the particles are not held in a fixed position as they are in a solid, but instead are able to move around and slide past one another.
This allows liquids to flow and take the shape of their container. The amount of motion in the particles can be affected by factors such as temperature, pressure, and the presence of other substances.
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Some poisons are compounds that interfere with metabolic pathways. Which poison would interfere with the citric acid cycle but not affect glycolysis?
-A compound that inhibits regeneration of NAD+ from NADH
-A compound that accelerates ATP hydrolysis
-A compound that accelerates coenzyme A synthesis
-A compound that inhibits pyruvate dehydrogenase
-A compound that accelerates pyruvate oxidation
A poison compound that inhibits pyruvate dehydrogenase would interfere with the citric acid cycle but not affect glycolysis. Option D is the correct answer.
Pyruvate dehydrogenase is the enzyme that catalyzes the conversion of pyruvate to acetyl-CoA, which is a critical step in the citric acid cycle. If pyruvate dehydrogenase is inhibited, the conversion of pyruvate to acetyl-CoA is blocked, and the citric acid cycle cannot proceed. However, glycolysis can still occur as it produces pyruvate prior to the citric acid cycle. Inhibition of other enzymes or compounds in the citric acid cycle or glycolysis may affect both pathways.
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if a trna molecule that is specialized for the transfer of the amino acid valine has the anticodon cag, it will couple with the codon
If a tRNA molecule specialized for the transfer of the amino acid valine has the anticodon CAG, it will couple with the codon GUC.
The genetic code is a set of rules that specify the correspondence between codons, which are sequences of three nucleotides in mRNA, and amino acids. Each codon codes for a specific amino acid, and the process of translation involves the pairing of codons in mRNA with complementary anticodons in tRNA.
Valine is one of the 20 standard amino acids used by cells to build proteins. The codons that code for valine are GUU, GUC, GUA, and GUG. Therefore, a tRNA molecule specialized for the transfer of valine could have any of these four anticodons: CAA, CAG, CAC, or CAU.
Therefore, If a tRNA molecule specialized for the transfer of the amino acid valine has the anticodon CAG, it will couple with the codon GUC.
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how do i explain that living thigs are made of cells
Answer:
you could say that when someone looks at a living thing through a microscope, they will see that the living thing is actually made of of tiny box-like figures which are the cells.
Explanation:
A section of our DNA that codes for a specific trait is called a....
environmental factor
genetic factor
gene
chromosome
Answer:
Gene, a part of DNA that determines the trait of individual characteristics
Explanation:
In a muscle, which two substances
show net movement from the plasma
into the tissue fluid?
A carbon dioxide and glucose
B carbon dioxide and lactic acid
C glucose and oxygen
D lactic acid and oxygen
Answer:
c
Explanation:
Glucose and oxygen are the two substances show net movement from the plasma into the tissue fluid.
What is meant by tissue fluid?Tissue fluid the fluid, consisting of water, ions, and dissolved gases and food substances, that is formed when blood is ultrafiltered (see ultrafiltration) from the capillaries into the intercellular spaces. Fluid found in the spaces around cells. It comes from substances that leak out of blood capillaries (the smallest type of blood vessel).Glucose and oxygen are the two substances show net movement from the plasma into the tissue fluid.
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Which of the following statements is associated with actin filaments?
a. control of arrangement due to extracellular signals
b. associates with myosin to form contractile structures
c. adoption of only one shape
d. A & B
e. all of the above
The statement associated with actin filaments is option (d), which is "associates with myosin to form contractile structures" and "control of arrangement due to extracellular signals." Actin filaments are important cytoskeletal structures that are involved in a variety of cellular processes, including cell movement, division, and shape maintenance. They work in conjunction with myosin to create contractile structures such as muscle fibers and play a key role in muscle contraction. Actin filaments are also highly dynamic and their arrangement within the cell can be influenced by extracellular signals, allowing the cell to respond to changes in its environment. Therefore, both options (a) and (b) are associated with actin filaments, making option (d) the correct answer. Option (c), adoption of only one shape, is not accurate as actin filaments can adopt different shapes depending on their function and location within the cell.
The correct answer to your question is:
d. A & B
Actin filaments are associated with both controls of arrangement due to extracellular signals (a) and association with myosin to form contractile structures (b). They play a crucial role in various cellular processes, including cell movement, shape, and division. Extracellular signals can trigger the rearrangement of actin filaments, affecting the overall structure and function of the cell. Additionally, actin filaments work together with myosin in muscle cells to generate force, enabling muscle contraction.
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Photosynthetic organisms produce oxygen based on whether light is available for photosynthesis. These orç consume oxygen for cellular respiration in both light and dark environments. In three to five sentences, expla conditions relate to gross and net productivity. (4 points)
Answer:
Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.
Explanation:
The solution for the remaining query is this photosynthetic organism produces oxygen based on whether light is available for photosynthesis.
In biochemistry, chemosynthesis is the organic conversion of 1 or extra carbon-containing molecules and vitamins into natural rely on the usage of the oxidation of inorganic compounds or ferrous ions as a supply of electricity, instead of sunlight, as in photosynthesis.
What is Photosynthesis?Photosynthesis is the technique with the aid of using inexperienced vegetation and sure different organisms rework mild electricity into chemical electricity. During photosynthesis in inexperienced vegetation, mild electricity is captured and used to transform water, carbon dioxide, and minerals into oxygen and electricity-wealthy natural compounds.
Hence concluded that Photosynthetic organisms produce oxygen based on whether light is available for photosynthesis.
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how hydrosphere affects the flow of matter and energy on Earth
Answer:
Water sculpts landforms through erosion and the movement of minerals, it hydrates life on the planet, and plays a role in the transfer of energy from terrestrial to aquatic systems.
Explanation:
the path of air resembles the path of blood in the circulatory system. it starts off with bigger tubes, and as it moves in deeper into the lungs, it goes through intensive and extensive branching to reach the site of gas exchange (alveoli). study the anatomy of the lungs and follow the path of air through the respiratory structures.
Air follows a branching pattern in the respiratory system, starting with larger tubes like the trachea and bronchi, and moving into smaller bronchioles before reaching the alveoli for gas exchange. This structure optimizes oxygen uptake and carbon dioxide release.
The respiratory system is responsible for the exchange of oxygen and carbon dioxide between the body and the environment.
The pathway of air in the lungs closely resembles the path of blood in the circulatory system, as it follows a branching pattern to maximize surface area for efficient gas exchange.
Air enters the respiratory system through the nasal passages or mouth and then travels through the pharynx and larynx. From there, it enters the trachea, a large tube reinforced with cartilage rings, which divides into two smaller tubes called the bronchi.
The bronchi further branch into smaller bronchioles, which continue to divide into even smaller respiratory bronchioles.
The respiratory bronchioles eventually lead to the alveoli, which are tiny air sacs surrounded by a network of capillaries. It is within the alveoli that the actual gas exchange takes place.
Oxygen from the inhaled air diffuses across the thin alveolar walls and enters the bloodstream, while carbon dioxide, a waste product, moves in the opposite direction to be exhaled.
This extensive branching of the airways in the lungs ensures that air reaches the alveoli, maximizing the surface area available for gas exchange.
The structure of the respiratory system optimizes the exchange of gases, providing the body with the oxygen it needs while eliminating carbon dioxide waste.
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A scientist spends a month observing two prairie animals, prairie dogs and ferrets, in their natural habitat. Base on his observations, the scientist states that ferrets are more active than prairie dogs. Why is his statement NOT a scientific theory
Answer:
c
Explanation:
a. It is an observation of something in nature.
b. Prairie dogs and ferrets are different species.
c. The statement is not widely accepted and supported by sufficient evidence.
d. The scientist has not conducted enough trials to draw a valid conclusion.
The statement of the scientist is not a scientific theory because it is not widely accepted and supported by sufficient evidence.
In order for a statement to become a theory, there must be adequate scientific evidence to support it and several independent researchers must have found the statement to be true through the same independent experimental procedure. In the case of the scientist in the illustration, this is not so. Hence, the scientist's statement cannot be considered a theory.
The correct option would be c.
9. some genetic mutations fail to code for a different amino acid. this is due to the fact that the genetic code is what?
Some genetic changes can take place without altering the protein's amino acid sequence.
What is amino acid?The building blocks of proteins, which are necessary macromolecules for life, are amino acids. They are organic molecules with a core carbon atom connected to both an amino group (-NH2) and a carboxyl group (-COOH), as well as a side chain (R group) that differs depending on the type of amino acid.
More than one codon (a group of three nucleotides) can code for the same amino acid because the genetic code is defective or redundant. Some genetic mutations might not alter the amino acid sequence of a protein as a result of this redundancy in the genetic code. Due to the redundancy in the genetic code, a mutation that alters a single nucleotide in a codon may produce a different codon that nonetheless codes for the same amino acid. A stop codon can be changed to a codon that codes for an amino acid, resulting in a longer protein with a different function, however some mutations can still have an effect on protein structure and function.
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(a) Describe the process in meiosis that ensures that both maternal and paternal chromosomes are passed on to each spermatozoon.
Answer:
Explanation:
Meiosis is a type of cell division in which the ploidy of the organism reduces to half in the daughter cells.
Meiosis produces 4 daughter cells from 1 parent cell with a different combination of the genetic material but haploid chromosomes.
The meiosis process takes place in two stages in which during the first stage, the homologous chromosomes separate reducing the chromosome number to half that is from diploid chromosomes of parents to haploid in daughter.
Since the process of meiosis form haploid gametes in both male and female therefore after fertilization restores the diploid chromosomes of the parent cell and form a diploid structure.
Veterinary Science!!
Daniela's little girl has developed a strange, circular, red rash around her eye. She takes her daughter to the
pediatrician. After examining the girl, the pediatrician tells Daniela that her daughter has a ringworm infection. She asks
how the girl could have picked up ringworm, and the pediatrician begins to list several possibilities. When she mentions exposure to cats, Daniela has a sinking feeling. She tells the pediatrician that they have recently adopted a stray cat and her daughter loves to snuggle with it. After giving Daniela an anti-fungal prescription to take home, he advises her to take the cat to the vet. Daniela goes home, now knowing that the cat likely has ringworm. She can't see any signs of infection, though. Which statement must be TRUE about the cat?
It is not the source of Daniela's daughter's ringworm.
Cats can carry ringworm, but they do not show symptoms.
It's likely that the cat has a rash under its fur where Daniela can't see.
The ringworm has not had time to cause hair loss in the cat.
The statement cats can carry ringworm, but they do not show symptoms must be true about the cat.
Ringworm is a contagious fungal infection caused by common mold-like parasites that live on the cells in the outer layer of your skin. It can be spread in the following ways: Human to human.
Most cases of ringworm can be treated at home. Over-the-counter antifungals can kill the fungus and promote healing. Effective medications include miconazole (Cruex), clotrimazole (Desenex) and terbinafine (Lamisil).
Therefore, option (B) is correct.
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The initial population of a bacteria colony is observed to be 500 bacteria. The population shows a growth rate of 50% per day, and the carrying capacity of the surrounding is estimated to be 2,000,000 bacteria. To the nearest whole number, find the population of bacteria after 15 days. A 165,822 bacteria B 622,707 bacteria C) 903,430 bacteria 2,000,000 bacteria
The population, to the nearest whole number, of bacteria after 15 days is approximately 4,769 bacteria, The correct option is E, None of the above.
To find the population of bacteria after 15 days, we can use the formula for exponential growth:
N = N₀ * \((1 + r)^t\)
Where: N = Final population after time t N₀ = Initial population r = Growth rate per time period t = Time period
Given: N₀ = 500 bacteria r = 50% per day (or 0.5) t = 15 days
Plugging in the values, we have:
N = 500 * \((1 + 0.5)^{15\)
Calculating this expression:
N = 500 * \((1.5)^{15\) N
= 500 * 9.537 N
= 4,768.5
Thus, the correct option is E, None of the above.
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The question is inappropriate; the correct question is:
The initial population of a bacterial colony is observed to be 500 bacteria. The population shows a growth rate of 50% per day, and the carrying capacity of the surrounding area is estimated to be 2,000,000 bacteria. To the nearest whole number, find the population of bacteria after 15 days.
A. 165,822 bacteria
B. 622,707 bacteria
C. 903,430 bacteria
D. 2,000,000 bacteria
E. None of the above
Describe how evolution includes a change to the genetic make-up of a population and explain the selective pressures that lead to higher reproduction rates for organisms that are more fit.
Evolution is a natural process that occurs in populations over time. It is driven by several mechanisms, including mutations, genetic variation, natural selection, genetic drift, and gene flow.
Selective pressures are environmental factors that influence the survival and reproduction of organisms. These selective pressures can arise from competition for resources, predation, disease resistance, environmental changes, and sexual selection.
EvolutionEvolution is the process of change in the inherited characteristics of a population over successive generations. One of the primary mechanisms driving evolution is a change in the genetic makeup of a population, which occurs through several processes:
Mutation: Mutations are random changes in the DNA sequence of an organism's genome. They can introduce new genetic variations into a population. Mutations can be beneficial, neutral, or detrimental to an organism's survival and reproduction.Genetic Variation: Genetic variation refers to the diversity of genes within a population. This variation arises through mutations, as well as through processes like sexual reproduction, genetic recombination, and gene flow (the transfer of genes between populations). Genetic variation is the raw material upon which natural selection acts.Natural Selection: Natural selection is the process by which certain heritable traits become more or less common in a population over time. It occurs when individuals with traits that increase their chances of survival and reproduction have a higher reproductive success and pass on these advantageous traits to their offspring. This leads to the gradual accumulation of favorable traits in a population, while less advantageous or detrimental traits become less prevalent.Genetic Drift: Genetic drift refers to the random fluctuations in gene frequencies within a population over time. It occurs due to chance events, such as the death or random mating of individuals, and tends to have a greater impact in smaller populations. Genetic drift can cause certain traits to become more or less common in a population without regard to their fitness or survival value.Gene Flow: Gene flow refers to the movement of genes from one population to another through migration and interbreeding. It can introduce new genetic variations into a population and increase genetic diversity. Gene flow can counteract the effects of natural selection and genetic drift by bringing in new genetic material or reducing genetic differences between populations.Through these processes, the genetic makeup of a population can gradually change over time, leading to the evolution of new traits and the adaptation of organisms to their environments. It is important to note that evolution occurs at the population level rather than within an individual's lifetime. The cumulative effect of these genetic changes over numerous generations results in the diversity of life we observe today.
Selective pressures are environmental factors or conditions that influence the survival and reproduction of organisms. They can shape the genetic composition of populations over time by favoring individuals with traits that provide a reproductive advantage, making them more fit.
Higher reproduction rates in more fit organisms can be attributed to several selective pressures:
Predation: Organisms facing high predation pressure may benefit from higher reproduction rates. Rapid reproduction increases the chances of offspring survival and continuation of the species.Competition for Resources: Limited resources, such as food, water, or nesting sites, can exert selection pressure. Organisms that are fitter and can acquire resources more efficiently have a higher chance of reproducing successfully.Disease Resistance: In the presence of pathogens, individuals with genetic traits that confer resistance or immunity have a greater likelihood of surviving and reproducing, passing on these advantageous traits to their offspring.Environmental Changes: Selective pressures arising from changes in the environment, such as climate shifts or alterations in habitat conditions, can favor individuals with traits that are better suited to the new conditions. These individuals may have higher reproductive rates, ensuring the survival of their genetic lineage.Sexual Selection: In species with sexual reproduction, individuals that possess desirable traits, such as elaborate plumage or impressive displays, may have a higher chance of attracting mates. This leads to increased reproductive opportunities and higher reproduction rates for the more fit individuals.learn about who postulated the evolution theory
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Explain what might happen if the chloroplasts in a cell are not working.
Answer:
The plant cell will not produce chloroplasts, and the plant will not be green any more.
Explanation:
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Which feature of bacteria is not considered to be a defensive structure?
A: cell walls
B: endospores
C: capsules
D: R plasmids
E: F plasmids
Bacterial F plasmids are not thought to be a protective structure.
F, or fertility factor, is a characteristic of F plasmids. It also goes by the name "sex factor," and it aids in the genetic material transfer from one bacterium to another. The F factor is typically transferred by the bacterium that has it through conjugation to another bacterium that does not have it. The F plasmid, also known as the F-factor, is a large, circular conjugative plasmid of Escherichia coli measuring 100 kbp. It was first described as a vector for gene recombination and horizontal gene transfer in the late 1940s. Since then, bacterial conjugation has been modelled after F and related F-like plasmids.
Because the F-plasmid has all the necessary genes for transfer, including the ability to create sex pili and activate DNA synthesis at the plasmid's transfer origin, it is known as conjugative (oriT). The recipients transform into F+ male cells after receiving the F-plasmid.
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What happened to the eggplant after adding salt?
Answer:
Salting eggplant is often explained on two points: The first point contends that eggplants can be quite bitter, and salting helps cut the bitterness. (No, salt doesn't draw out bitterness. It just helps hide it.) Second, salting eggplants reduces the sponginess and leaves you with a creamy, silky texture.
Explanation:
the seed's food source will be used up by the time the new plant developsleaves. why does the plant no longer need the cotyleddon once the leaves are formed?
Answer: The plant becomes self-sufficient when leaves grow onto it.
Explanation: The leaves will start photosynthesis instead of the Cotyledons providing nourishment for the seed.
PLEASE HURRY!!
Areas that receive eroded sediment are called
a
divergent boundaries.
b
depositional basins.
c
rifting regions.
d
subduction zones.
Answer:
d
Explanation:
I believe because it's a zone if it's not correct then I am not sure
50 points look at screenshot
Carbohydrate: starches and sugars, glucose and sucrose
lipids: can be utilized for energy if sugars are not available
protiens: DNA or RNA, antibodies
nucleic acid: forms hydrophobic part of membrane
What strand is RNA and DNA?.
RNA and DNA are both nucleic acids, but they differ in terms of their chemical structure and composition. RNA (ribonucleic acid) is a single-stranded molecule composed of ribonucleotides.
Each ribonucleotide consists of a ribose sugar, a phosphate group.
RNA plays various roles in the cell, including carrying genetic information, protein synthesis, and catalyzing enzymatic reactions.
DNA (deoxyribonucleic acid) is a double-stranded molecule composed of deoxyribonucleotides.
DNA carries the genetic information that determines the inherited traits of an organism and serves as a blueprint for the synthesis of RNA and proteins.
While DNA consists of two complementary strands that form a double helix structure, RNA typically exists as a single strand.
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PLEASE HELP, 20 POINTS
Proteins are synthesized based on genetic information carried by DNA. Explain how the structure of DNA is important in the synthesis of different kinds of proteins. In your explanation, include a description of the two main processes involved in protein synthesis.
DNA makes RNA which makes protein sorry I couldn't really understand thus
Answer:
DNA makes RNA makes Protein. ... 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.
A student claims that he can correctly identify whether a person is a business major or an agriculture major by the way the person dresses. Suppose in actuality that if someone is a business major, he can correctly identify that person as a business major 87% of the time. When a person is an agriculture major, the student will incorrectly identify that person as a business major 16% of the time. Presented with one person and asked to identify the major of this person (who is either a business or an agriculture major), he considers this to be a hypothesis test with the null hypothesis being that the person is a business major and the alternative that the person is an agriculture major.
The statement that would be a Type I error is "saying that the person is an agriculture major when in fact the person is a business major". The correct answer is A.
A Type I error in a hypothesis test is when the null hypothesis (the assumption that the person is a business major) is rejected when it is actually true.
In this scenario, the student is presented with one person and is asked to identify the major of this person. If the student claims that the person is an agriculture major when in fact the person is a business major, this would be a type I error.
The question should be provided with answer choices, which are:
A. Saying that the person is an agriculture major when in fact the person is a business major.B. Saying that the person is a business major when in fact the person is a business major.C. Saying that the person is a business major when in fact the person is an agriculture major.D. Saying that the person is an agriculture major when in fact the person is an agriculture major.A is the correct answer.
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Please help me with short note on Lamarckism.
Answer:
Explanation:
Lamarckism, or Lamarckian inheritance, also known as "Neo-Lamarckism", is the notion that an organism can pass on to its offspring physical characteristics that the parent organism acquired through use or disuse during its lifetime.
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in the riftia worm-endosymbiotic bacteria association, the bacteria are blank , using sulfide as an electron donor and oxygen as a terminal electron acceptor. multiple choice question. chemoautotrophic chemolithotrophic chemoheterotrophic
In the Riftia worm-endosymbiotic bacteria association, the bacteria are chemoautotrophic, using sulfide as an electron donor and oxygen as a terminal electron acceptor.
Chemoautotrophic refers to organisms that use chemical energy to convert carbon dioxide into organic compounds.
They do not need light to live, but rather derive their energy from the oxidation of inorganic chemicals or the conversion of inorganic carbon to organic carbon.
They are primary producers who produce food by photosynthesis, but they do it chemically rather than with the help of sunlight.
Therefore, in the Riftia worm-endosymbiotic bacteria association, the bacteria are chemoautotrophic, using sulfide as an electron donor and oxygen as a terminal electron acceptor.
Sulfide is used as the energy source and carbon dioxide as the carbon source. Bacteria's cells use oxygen to make ATP in the electron transport chain, which provides the energy they need to grow and reproduce.
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Please help due tonight.
Answer:
The answer would be increased airplane travel