the endosymbiotic theory provides a way to explain the complexity of eukaryotic cells
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The endosymbiotic theory provides an explanation for the complexity of eukaryotic cells. In eukaryotic cells, a large number of organelles are present that are not found in prokaryotic cells.
This difference in complexity between prokaryotic and eukaryotic cells can be explained by the endosymbiotic theory.Endosymbiosis is a symbiotic relationship between two different species in which one species lives inside the other. According to the endosymbiotic theory, eukaryotic cells arose from a symbiotic relationship between two prokaryotic cells.The theory suggests that an ancestral eukaryotic cell took in bacteria through endocytosis but instead of digesting them, it formed a mutually beneficial relationship with them. Over time, the bacteria became integrated into the host cell and evolved into organelles such as mitochondria and chloroplasts. These organelles now carry out important functions within eukaryotic cells, such as energy production and photosynthesis.In this way, the endosymbiotic theory provides an explanation for the origin of organelles and the complexity of eukaryotic cells.
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In the Gulf of Mexico, there is a large area off the coast of Louisiana that cannot support most marine life. In this area, fresh water from the Mississippi River carries excess phosphorus and nitrogen from lawn care and agriculture into the Gulf of Mexico. Algae in the water use these nutrients to grow rapidly, creating algal blooms in the water. When the algae die, they sink to the bottom of the Gulf, where bacteria use much of the oxygen in the water to decompose the algae.
Dissolved Oxygen Levels in Gulf of Mexico Dead Zone
map showing dissolved oxygen levels in water, with areas ranging from 0 mg/L to about 6mg/L
Image courtesy of NOAA
Marine organisms trying to live in the water may not get enough oxygen to survive. Based on this description, which of the following is true?
A.
Nonliving factors, such as the amount of nutrients available, significantly affect the survival of organisms in their environment.
B.
Living factors, such as the number of producers present, play the largest role in the survival of organisms in an ecosystem.
C.
The supply of any nonliving factor supports or limits growth of all organisms in an ecosystem in the same way.
D.
The number of organisms of each type in an ecosystem depends on living factors but not on nonliving factors.
i dont know the answer??
Answers
Answer:
A. Nonliving factors, such as the amount of nutrients available, significantly affect the survival of organisms in their environment.
Explanation:
The death of the algae kills oxygen, both are non-living factors
what type of medication is important to a person having pneumonia that doctor recommend?
Answers
Answer:
He should take Antibiotics
Explanation:
A red flower is mixed with a white flower and the offspring come out all pink what type of dominance is this?
A. Incomplete
B. Codominance
Answers
Answer: Incomplete dominance
Explanation: In incomplete dominance, there will be a mixture of the two alleles. In codominance, both alleles are expressed in the phenotype. In this case, an example of codominance would be the flower being half white and half red.
A substance that influences the reaction but does not participate in the reaction is a _.
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A substance that influences the reaction but does not participate in the reaction is called a catalyst.
Catalysts are substances that speed up the rate of a chemical reaction without being consumed in the process. They lower the activation energy required for the reaction to occur, which in turn increases the likelihood of the reaction taking place.
Catalysts are important in many industrial processes, such as the production of chemicals and fuels, as they can increase the efficiency of the reaction and reduce the energy required to produce the desired product.
Examples of common catalysts include enzymes in biological systems, transition metal complexes in chemical synthesis, and zeolites in petrochemical refining.
Overall, catalysts play an essential role in many chemical processes, both in nature and industry, by increasing the rate and efficiency of the reaction while remaining unchanged themselves.
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8. In the beaker, the water nearest the flame becomes
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Answer:
did you get the answer yet
HELPPP PLEASEEEE FASTTT
Both parents in the example carry the dominant and the
recessive alleles for a trait (heterozygous). What is the
probability of the offspring expressing the dominant
phenotype?
Answers
Answer:
The answer is 75%
Explanation:
BECAUSE
Whenever there is a capital letter, it means the dominant is there. Whenever the dominant is there, it shows. There are 3/4 (75%) sections that have a capital letter (dominant). Therefore, 75% of those will carry out the dominant
Definition: a macromolecule that contains carbon, hydrogen, oxygen, and nitrogen, which is used by the body for growth and repair.
Answers
Answer:
Proteins
Explanation:
Proteins are the main building block of the body. They are required for proper growth of the organism.
15. How does the altitude of an area affect the climate? 1. The altitude increases, thus the climate is colder. 2. The altitude increases, thus the climate is warmer. 3. The altitude decreases, thus the climate is colder. 4. The altitude decreases, thus the climate is warmer.
Answers
Answer:
The altitude increases, thus the the climate is colder
Enamel is the hardest substance in the human body. Justify your answer.
Answers
Enamel is indeed the hardest substance in the human body. It is present in teeth of humans. It covers every tooth and provides the hard layer.
Tooth Enamel is hard glossy substance that is comprised of calcium and phosphate mineral crystals which in return makes our teeth more stronger. Teeth enamel care is extremely important to maintain the oral health of teeth.
Tooth Enamel is one of the major tissue that make up tooth in humans. It covers the top layer of the teeth known as Crown. Calcium hardens the tooth enamel. Enamel contains 96% of the minerals. The color of Enamel varies from light yellow to white.
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How is the sex of the offspring determined?
solely by which chromosome from the male, the X or the Y, combines with the female chromosome
solely by the "Y" chromosome
independent of the female chromosome
by the combination of the sex chromosomes of the male and female
Answers
Answer:
i think its the second one
Answer:
By which chromosome from the male, the X or the Y, combines with the female chromosome
Explanation:
Describe the parts of nucleotides
Answers
Answer:
The three parts of the nucleotide building block of DNA are the sugar, the base and the phosphate. The complex of the sugar with the base is called a nucleoside.
Is the Once-ler greedy? Why do you think so?
Answers
The Lorax and its 2012 film version both have The Once-ler as their narrator. He is a rapacious industrialist who destroyed the entire Truffula Tree in order to produce a strange garment called a Thneed, or "a Fine Thing That All People Need."
The Once-ler one day finds a valley full of stunning Truffula trees that are home to Bar-ba-Loots, Swommee Swans, and Humming Fish. To make room for his creation, the Thneed, he chooses to chop down one of the trees. He discovers The Lorax in the tree trunk after felling a Truffula Tree. He is warned not to clear the forest for his selfish purposes. The Once-ler refuses to take advice and keeps felling trees to make things to sell.
He was unable to accept what he had done:
It's simple for us to see the Once-ler as a ruthless antagonist. He wrecked a once-beautiful and prosperous region because he was only thinking about himself. Even money didn't appear to be driving the Once-ler. He never lived in a luxurious environment and instead only consumed for the sake of unrestrained growth.
Danny DeVito Advocates for Trees and Discusses "Dr. Seuss" The Lorax:
He wasn't able to see the effects of his acts until it was too late. Once-ler was broken by the truth. He wreaked so much damage that his identity eventually crumbled. He withdrew to his house and disappeared from public view.
It's a tale of wasted talent:
The Once-ler was a true genius, despite the fact that he sometimes utilized his talents for bad. His curiosity and creativity were beyond bounds. There was no issue that he couldn't come up with a solution for. His inventions had a profound impact on society. He made significant innovations. The Lorax is a tale about lost talent as well as one that serves as a warning against greed. By the story's conclusion, nobody has any recollection of the Once-accomplishments ler's or even his identity. All of his genius was gone due to his horrible legacy. Ultimately, his extraordinary mind is simply one of the many resources that his avarice wasted.
He Was Abandoned and Used:
The Once-ler gave in to the pressures his avaricious relatives imposed on him. They lost all sense of perspective when they realized the money that could be made from the needs. His domineering mother was maybe the greediest of them all. Profits dried up as the planet became ever more poisonous and truffula fluffs decreased. When your source material has been harvested dry, it is difficult to keep up with the surge in demand. The money also ran out when the fluffs did. When the money stopped coming in, the Once-ler was left alone. also his mother. Nobody deserves to be abandoned, especially not because of money.
He is engulfed with shame:
The Once-ler is almost pathologically brash for the most of the narrative. He intends to seize anything he can, even if it means destroying it. He appears to be binge-consuming. He seems to just mindlessly eat everything in his path without even making any plans for his requirements in the future. before it is too late. The shame of his actions won't completely hit home for him until the forest is devastated and the final truffula tree falls. The Once-ler begins to live alone. He covers his face from everyone because he is ashamed of what he has done to the once-beautiful forest.
He Is Conscientious:
The Once-ler makes a surprise decision towards the end of the narrative. He then hands the final truffula tree seed to his small audience as he finishes the story. For the majority of the novel, we don't really get to know him, but now we do. He feels bad since he is aware of how awful what he did is. After causing the forest such severe harm, he wants to see it recover. Throughout the entire narrative, he is portrayed as the antagonist, a callous and self-centered individual. With this one kind deed, can he really atone for himself?
He’s Terrified Of Failure:
The final truffula seed, the secret weapon the Once-ler has been holding all along, is revealed as the story draws to a close. The story's most perplexing section is this. He has been hiding from the outside world by sitting in his home. He had yearned to see woods and animals once more for years, consumed with anguish and shame. He had the solution to his own problem in his hands the entire time. Why didn't he just put the seed in the ground himself? Considering his fear that everything he touches would result in death and ruin. He simply doesn't have faith in himself to accomplish it correctly.
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What gave the smooth ER its name?
Answers
The smooth endoplasmic reticulum (smooth ER) got its name due to its appearance under an electron microscope.
Unlike the rough endoplasmic reticulum, which has ribosomes attached to its surface giving it a rough texture, the smooth ER has a continuous, smooth membrane without ribosomes. This membrane-bound organelle plays a crucial role in lipid synthesis, metabolism, and detoxification of drugs and toxins. It also helps regulate calcium ions in the cell and participates in the breakdown of glycogen.
This structure allows the smooth ER to perform specific functions, such as lipid and steroid synthesis, detoxification of harmful substances, and calcium ion storage. The absence of ribosomes and its associated smooth appearance led scientists to name this organelle the smooth endoplasmic reticulum.
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Will give a brainiest for the answer thanks :)
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Which of the following are viruses unable to infect?
Answers
Answer:
non living things
Hope this helps :) !!!
A flower is ready to become a fruit where would the instructions be found 1. Vacuole 2. Enzyme 3. Hormone 5. Nucleus
Answers
Answer:
5. Nucleus
Explanation:
the nuclues controls all functions of the brain and also contains dna. It's like the brain of the cell. So the nucleus would be a key component in the plant's decision to become a fruit. Plus it said instructions..instructions aren't found anywhere else
In the average person, what percentage of alcohol is absorbed through the small intestine?.
Answers
In the average person, 70-80 percentage of alcohol is absorbed through the small intestine.
Alcohol is not treated the same way as other food nutrients. In fact, the digestive system exerts additional effort to remove it from the body, giving alcohol removal priority over other nutrients including lipids (fats), carbs, and proteins. All parts of the digestive tract take in alcohol. In contrast to other nutrients, alcohol is quickly absorbed in the small intestine and enters the bloodstream immediately via the stomach lining. Although other bodily cells can also metabolize alcohol, the liver is where alcohol metabolism mostly takes place. Acetaldehyde, a poisonous chemical, is created when alcohol is broken down.learn more about alcohol here: https://brainly.com/question/27427140
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Why does the author present Redi’s experiments first, followed by Pasteur’s experiments?
Redi’s experiments were more important than Pasteur’s.
The author wanted to present the experiments in historical sequence.
Redi’s experiments completely changed the belief in spontaneous generation.
The author wanted to focus on the maggots that were found in the rotted meat.
Answers
Answer:
ThE aNsWeR iS b
Explanation:
Bc I gOt It RiGhT
Answer:
B
Explanation:
Biological constraints on human behavior are the primary result of biological processes. True False
Answers
True. Biological constraints on human behaviour refer to limitations or restrictions on behaviour that are imposed by biological processes such as genetics, physiology, and brain structure.
The two biological processes most important to the carbon cycle are photosynthesis and cellular respiration. Photosynthesis is largely carried out by green plants, and it removes carbon dioxide from the atmosphere and fixes it into organic molecules. In contrast, cellular respiration is carried out by almost all.
These processes play a crucial role in shaping human behaviour and can create specific constraints or predispositions that affect how individuals behave in different situations.
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acetylcholine is released by all somatic motor neurons, all preganglionic neurons of the ans and by the postganglionic parasympathetic nerve fibers. State True or False your answer:
a. True
b. False
Answers
Answer:
a. True
Explanation:
Acetylcholine is released by all somatic motor neurons, all preganglionic neurons of the ANS and by the postganglionic parasympathetic nerve fibers. The ANS stimulates smooth muscles, skeletal muscles and glands, whereas the somatic nervous system innervates skeletal muscles only.
g if a significant number of the rat population of paeleoland, a newly discovered planet, are killed by an earthquake. how will you characterize this factor in relation to the growth regulation of the rat population?
Answers
The significant number of rat population being killed by an earthquake on the newly discovered planet of Paeleoland can be characterized as a density-dependent factor influencing the growth regulation of the rat population.
Density-dependent factors are environmental factors that have a greater impact on population growth as population density increases. In this scenario, the earthquake-induced mortality affecting a significant number of rats would directly influence the population density and have implications for the growth regulation of the rat population on Paeleoland.
The earthquake would lead to a sudden reduction in the rat population, creating a decrease in population density. As a result, the availability of resources and competition for those resources may change. With fewer rats, there would be less competition for food, shelter, and other essential resources, potentially leading to increased survival and reproductive success for the remaining individuals. This could contribute to a period of population growth as the population rebounds from the initial decline.
Furthermore, the decreased population density could also result in reduced intraspecific interactions such as competition and territoriality, which may further promote population growth. Over time, if the population size increases and approaches carrying capacity, density-dependent factors such as resource limitation or increased competition could once again regulate the population growth and stabilize it at a sustainable level.
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Which environment would experience more humidity?
Desert
Grassland
Mountain
Swamp
Answers
Answer:
sawmp if this is correct can u mark me brainliest
Answer:
A swamp is the correct answer because the water will evaporate from the sun rays
Explanation:
Nutrients can come from what 3 natural sources?
Answers
Answer:
Nutrient-rich soil or water contains large amounts of nitrogen, carbon, phosphorus, sulfur, and potassium. These nutrients can come from natural sources, like plant and animal remains. As plants and animals die, they decompose. Decomposition releases nutrients into the environment.
how can gene flow improve adaptation of population?group of answer choicesalleles mutate in different geographical areasalleles increase in frequency in original populationbeneficial alleles are transferred to a new populationallele frequencies decrease in new population
Answers
Gene flow can improve the adaptation of a population by transferring beneficial alleles to a new population. When individuals from different geographical areas mate and exchange genetic material, the alleles that provide advantageous traits can increase in frequency within the new population, enhancing its ability to adapt to environmental challenges.
Gene flow can improve the adaptation of a population by allowing beneficial alleles to be transferred from one population to another. When individuals from different populations interbreed, they bring with them their unique genetic traits and characteristics, including any beneficial alleles that may have evolved in their original population. This influx of genetic diversity can increase the frequency of beneficial alleles in the receiving population, leading to improved adaptation to changing environmental conditions or selective pressures.
Additionally, gene flow can help to counteract the effects of genetic drift, which can cause random fluctuations in allele frequencies within small populations and potentially lead to the loss of beneficial traits. Overall, gene flow plays an important role in maintaining genetic diversity and promoting adaptive evolution within populations.
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question 92 51) which of the following large biological molecules will self-assemble into a bilayer when mixed with water? a) proteins b) triacylglycerols c) cellulose d) phospholipids
Answers
The large biological molecule that will self-assemble into a bilayer when mixed with water is phospholipids.
Phospholipids are the large biological molecule that will self-assemble into a bilayer when mixed with water. The main feature of a phospholipid is the presence of two hydrophobic fatty acid chains and a hydrophilic head.
These molecules are amphipathic, with a polar (charged) hydrophilic head and nonpolar hydrophobic tail. They can self-assemble into a bilayer due to the hydrophobic effect when mixed with water. The correct option is d) phospholipids.
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choose the main reasons that contributed to mendel selecting the garden pea as his experimental subject.a. They are easy to cultivate.b. Their life cycle is quite short.c. The flowers of the pea plant are monosexuald. The true-breeding or pure plants can be easily obtained through self-pollination.
Answers
The main reasons that contributed to Mendel selecting the garden pea as his experimental subject are: The true-breeding or pure plants can be easily obtained through self-pollination.
The correct option is :- (D)
a. They are easy to cultivate: Garden peas are relatively easy to grow and cultivate, making them suitable for experimental purposes. Mendel was able to easily obtain and maintain a large number of pea plants for his experiments.
b. Their life cycle is quite short: The life cycle of garden peas is relatively short, allowing Mendel to observe multiple generations of pea plants within a relatively short period of time. This facilitated his ability to study inheritance patterns and make observations on the traits of interest.
d. The true-breeding or pure plants can be easily obtained through self-pollination: Pea plants have the ability to self-pollinate, meaning that pollen from the same plant can fertilize its own eggs. This allowed Mendel to obtain true-breeding or pure plants with specific traits through self-pollination, which provided a consistent source of plants with known traits for his experiments.
These factors made the garden pea an ideal choice for Mendel's experiments on inheritance and laid the foundation for his groundbreaking discoveries in the field of genetics.
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os protozoarios tambem sao chamados de?
Answers
Answer:
protozoário
Explanation:
esse é o outro termo para protozoários
What is the original source of energy
Answers
Answer:
The Sun is basically the Sun is the original source of energy.
3. What methods are you using to test this hypothesis? Outline the steps of the procedure in full sentences.
Answers
Answer:
1. Specify the Null Hypothesis.
2. Specify the Alternative Hypothesis.
3. Set the Significance Level
4. Calculate the Test Statistic and Corresponding P-Value.
5. Drawing a Conclusion.
Explanation:
:)
Answer:
1. Specify the Null Hypothesis.
2. Specify the Alternative Hypothesis.
3. Set the Significance Level
4. Calculate the Test Statistic and Corresponding P-Value.
5. Drawing a Conclusion.
Explanation:
got 100%
two flowering plants are crossed. the offspring flower as follows: 25% white and 75% red. what pattern of inheritance does flower color in these flowers follow?
Answers
The pattern of inheritance the offspring of flower plants with 25% white and 75% red flower color will be: complete dominant.
Inheritance is the phenomenon of transmission of genes from parents to offspring. Genes are the basic unit of heredity. They carry the information to be encoded in the form of proteins. These proteins are responsible for the display of certain traits.
Complete dominance is where the effect of the dominant allele is not masked up due to the presence of another allele with recessive character. The allele can show its trait unaffectedly even in heterozygous condition. The phenotypic ratio of offspring for complete dominance is 3:1.
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