Which of the following options best explains how a scientist could decrease the rate of an enzyme-catalyzed reaction?
A. Add more reactants as they are consumed by the reaction.
B. Remove the product as it is formed by the reaction.
C. Increase the concentration of enzyme substrate.
D. Add an inhibitor for the enzyme molecule.
Answers
Scientist could decrease the rate of an enzyme-catalyzed reaction by adding an inhibitor for the enzyme molecule.
The best option to decrease the rate of an enzyme-catalyzed reaction is to add an inhibitor for the enzyme molecule. This will decrease the activity of the enzyme and thus slow down the reaction. Adding more reactants as they are consumed or removing the product as it is formed will not affect the rate of the reaction, as it is primarily controlled by the concentration of the enzyme-substrate complex. Increasing the concentration of enzyme substrate can actually increase the rate of the reaction, as more enzyme-substrate complex can be formed.
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Related Questions
Kelp plants have been known to grow up to _______. A. 1 foot per week b. 2 inches per day c. 10 inches per day d. 1 inch per hour Please select the best answer from the choices provided A B C D.
Answers
Kelp plants are a type of seaweed and belong to brown algae of the Laminariales order. It is truly not a plant because of the absence of distinctly differentiated tissue. They are found in cool and shallow water places.
Kelp plants can grow up to 10 inches per day.
What are the characteristics of the Kelp?Kelp grows in groups and bunches and is not a solitary species and acts as a food reservoir for shallow-water fishes, mammals, invertebrates and other organisms.They are used as a variety of food ingredients like puddings, toothpaste, dressings, shampoos, pharmaceuticals etc. They can grow very fast and it depends on the amount of sunlight they perceive because sunlight support plants to produce food and essential nutrients. With the help of sunlight, kelp can grow faster.
Therefore, option c. is correct.
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Answer:
The correct answer is option c. "10 inches per day".
Explanation:
Apes and chimpanzees are different species because _________________.
a. they live in different environments
b. they cannot produce offspring together
c.they have different physical features
d.they eat different foods
Answers
Answer: b
Explanation:
different species cant reproduce
Select the correct statement about the factors that limit the growth of a population.
a. If a factor limits population growth, increasing its availability will increase population growth.
b. The most important factor limiting population growth is the scarcest factor in that area.
c. Density-dependent factors are biotic; density-independent factors are abiotic.
Answers
How can you get norovirus through
food?
Answers
2. Food is placed on a counter or surface that has poop or vomit particles on it.
3. Tiny drops of vomit from an infected person spray through the air and land on the food
4. The food is grown or harvested with contaminated water, such as oysters harvested from contaminated water, or fruit and vegetables irrigated with contaminated water in the field
A male with the condition has four children with a female who is a carrier. What are the expected genotypic and phenotypic ratios of the offspring?
Answers
Pedigrees are used to calculate the probabilities of getting progeny expressing a certain trait or carrying certain alleles. In the e xposed example, the expected genotypic ratio is 1:1:1:1. The expected phentoypic ratio is 1:1.
What is a pedigree?
A Pedigree is the representation of a family's history. This graph is used to track a trait through different generations, and analyze the inheritance pattern of a particular gene and its expression.
It is a tool used to understand how genes are transmitted from the parental generation to the descendants, and what are the probabilities of inheriting them.
Pedigree interpretation.
Family members→ Individuals are represented with geometrical figures.
→ Males are squares
→ Females are circles
Trait/Phenotype→ Healthy/normal/not affected individuals are represented with empty figures
→ Affected/mutated individuals are represented with solid black figures
Generations→ Each file is represented with a roman number, indicating the Generation.
The exposed pedigree represents a trait coded by an X-linked gene. The recessive allele is the one coding for the affection.
Generation I
Affected man: X⁻YCarrier woman: X⁺X⁻Generation II
Boy 1: X⁺YBoy 2: X⁺YGirl 3: X⁺X⁻Girl 4: X⁺X⁻Husband 5: X⁺YGeneration III
Girl 1: X⁺X⁻Girl 2: X⁺X⁺Boy 3: X⁻YWife 4: X⁺X⁻Generation IV
Girl 1: X⁺X⁻Boy 2: X⁻YThese are the observed genotypes. They might differ from the e xpected ones.
The expected genotypic ratios among the offspring in generation II are
genotypic ratio ⇒ 1:1:1:1
1/4 X⁺X⁻1/4 X⁻X⁻1/4 X⁺Y1/4 X⁻Yphenotypic ratio ⇒ 1:1
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Complete question:
This question is on a pedigree chart:
A male with a condition has 4 children with a female who is a carrier. What are the expected genotypic and phenotypic ratios of the offspring?
Image attached.
If a race car's velocity is increasing rapidly, we
would notice
its velocity-time graph.
on
A a steep positive slope
B a shallow positive slope
C a shallow negative slope
Da steep negative slope
Answers
If a race car's velocity is increasing rapidly, we would notice its velocity-time graph on a steep positive slope, therefore the correct answer is option A.
What is Velocity?The total displacement covered by any object per unit of time is known as velocity.
acceleration = slope of the velocity time graph
As per the given problem statement If a race car's velocity is increasing rapidly, we would notice its velocity-time graph on a steep positive slope because the rapidly increasing speed represents.
To determine the object's acceleration, utilize the positive acceleration and the slope of the velocity time graph.
Thus, the correct answer is option A.
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FILL IN THE BLANK. Viruses that naturally cause clumping of red blood cells can be diagnosed using a(n) ________ test
Answers
The viruses that naturally cause clumping of red blood cells can be diagnosed using a hemagglutination test. Hemagglutination refers to the process in which viruses bind to red blood cells, causing them to clump together.
This reaction can be observed in a laboratory setting and is used as a diagnostic tool to identify certain viral infections. In the test, the patient's serum or other bodily fluid is mixed with red blood cells, and if the virus is present, it will cause the red blood cells to agglutinate. The degree of agglutination can indicate the severity of the infection, and the test is often used to diagnose viral infections such as influenza, measles, and mumps. The hemagglutination test is a simple and cost-effective method for diagnosing viral infections, and it is widely used in clinical settings around the world. However, it is important to note that not all viruses cause hemagglutination, and additional diagnostic tests may be required to confirm a viral infection.
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A bat wing, an alligator leg, and a human arm are homologous structures. Which fact about those structures best supports one aspect of the theory of evolution? Question 14 options: a. The fact that the bone structures are similar supports the concept that the animals shared a common ancestor. b. The fact that the bone structures are similar supports the concept that birds evolved from mammals. c. The fact that the bone structures are completely different supports the concept that those organisms evolved from each other.
Answers
Answer:
A - The fact that the bone structures are similar supports the concept that the animals shared a common ancestor.
Explanation:
Homologous structures refer organs which are similar in structure which are derived from ancestors of similar species.
please answer asap !!!! and yeah please hehe
Answers
Answer:
looks like a nucleotide
Explanation:
going with nucleotide!
As an airplane rises through the atmosphere, machines cause the pressure inside the cabin to decrease. Why is this change in pressure necessary?
Answers
Answer:
I think D or B i hope this helps!
Explanation:
Answer: Air pressure inside the plane should match the air pressure outside the plane.
The plane needs to stay balanced.
Got it right on the test.
Which of these describes a difference between viruses and cells?
A. Cells contain protein, and viruses contain only carbohydrates.
B. Viruses have flagella, and cells have only cilia.
C. Cells reproduce independently, and viruses require a host to reproduce.
D. Viruses have membranes made of proteins, and cells have membranes made of nucleic acid.
Answers
Answer: C
Explanation:
A is ncorrect becuase viruses do not contain only carbs.
homo naledi, recently discovered in south africa, has a sagittal keel, a large supraorbital torus, and reduced tooth size. but the brain size is small. where might this new species fit in the larger pattern of human evolution in africa?
Answers
Homo naledi, a recently discovered species in South Africa, exhibits several unique traits such as a sagittal keel, a large supraorbital torus, reduced tooth size, and a small brain size.
These characteristics suggest a mix of primitive and derived features. In terms of human evolution in Africa, the placement of Homo naledi is still debated among scientists.
Some argue that it represents a transitional species between Australopithecus and Homo, while others propose it could be a side branch that coexisted with early Homo species. Further research and analysis of fossils, dating, and genetic evidence are needed to clarify its exact position in the larger pattern of human evolution.
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B. A microbiologist counted the number of bacterial colonies growing on a plate over a period of days. Graph
the following information in a LINE graph. Label and number the x and y-axis appropriately.
# of Days
Elapsed
1
23456
# of
Bacterial
Colonies
4
16
40
80
100
200
1. What is the independent variable?
2. What is the dependent variable?
3. What is an appropriate title?
Answers
Draw the morphological tree structure for the word "inflammable" that has the meaning able to catch on fire easily
Answers
The morphological tree structure for the word "inflammable," which means "able to catch on fire easily," can be represented given below.
The morphological tree structure for the word "inflammable" reflects its composition and meaning. The word can be divided into two morphemes: "in-" and "-able." The prefix "in-" functions as a negation, indicating the opposite or absence of a particular characteristic. In this case, it negates the meaning of "flammable" which denotes the ability to catch fire easily. The suffix "-able" is added to the base form "flammable" to indicate the capability or possibility of the root word.
inflammable
/ \
in- -able
/ \
not capable
The morphological tree structure represents the hierarchical relationship between the morphemes in the word. Starting from the root node "inflammable," the tree branches out into two branches: one for the prefix "in-" and another for the suffix "-able." The prefix "in-" leads to the morpheme "not," indicating the negation of the base word "flammable." The suffix "-able" leads to the morpheme "capable," signifying the ability or possibility of the root word.
By breaking down the word "inflammable" into its constituent morphemes, the morphological tree structure helps to understand the formation and meaning of the word.
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Which perspective has been energized by recent discoveries that many genes together influence the brain and biochemistry abnormalities that contribute to all major disorders
Answers
The perspective that has been energized by recent discoveries that many genes together influence the brain and biochemistry abnormalities contributing to all major disorders is the biological perspective.
This approach focuses on understanding the physiological and genetic basis of behavior, cognition, and emotions, and how these factors interact to shape our mental processes. The biological perspective has gained significant momentum due to advances in genetics research, which have revealed that complex interactions among multiple genes contribute to the development of brain disorders. This has led to a better understanding of the genetic and biochemical underpinnings of conditions such as schizophrenia, depression, and anxiety disorders.
Furthermore, the use of neuroimaging techniques, like functional magnetic resonance imaging (fMRI) and positron emission tomography (PET), has allowed researchers to study the brain's structure and function more closely, providing valuable insights into the neural basis of mental disorders. These findings have highlighted the role of neurotransmitters, hormones, and other biochemical factors in the manifestation of various psychological conditions. In summary, the biological perspective has been energized by recent discoveries of the complex genetic and biochemical influences on brain function and mental disorders. This approach emphasizes the importance of understanding the intricate interplay between genetic, physiological, and environmental factors in order to develop more effective treatments and prevention strategies for mental health conditions.
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Which characteristic of the Artic fox is specifically an adaptation to living in the tundra that a fox in another biome probably would not have
Answers
Answer:
keen eyesight
Explanation:
subtle foci of partial thickness chondral defects at the central hepatic surface of the medial femoral condyle
Answers
The phrase "subtle foci of partial thickness chondral defects at the central hepatic surface of the medial femoral condyle" indicates the existence of minor damage or abnormalities in the articular cartilage in the central region of the medial femoral condyle.
Changes in the flexible, protective cartilage that covers the ends of the bones in joints are called chondral defects. The term "partial thickness" indicates that the full thickness of the cartilage is not affected by the abnormalities. The inner part of the knee joint, on the medial side of the femur, is home to the medial femoral condyle.
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repeating dna sequence at the end of chromosomes that prevents them from losing base pair sequences at their ends and from fusing together is a
Answers
The repeating DNA sequence at the end of chromosomes that prevents them from losing base pair sequences at their ends and from fusing together is called a telomere.
Telomeres are specialized structures found at the ends of chromosomes. They consist of repetitive DNA sequences that do not contain genetic information. Their primary function is to protect the integrity of chromosomes during replication and cell division. When cells divide, the enzymes involved in DNA replication cannot fully replicate the very ends of chromosomes. Telomeres act as protective caps, ensuring that the essential genetic information within the chromosome is not lost during the replication process. Additionally, telomeres help prevent the fusion of chromosomes, which could lead to genetic abnormalities and cell dysfunction. Over time, telomeres naturally shorten with each cell division. When telomeres become critically short, cells may experience replicative senescence or enter a state of cell cycle arrest, contributing to the aging process and potentially limiting cell lifespan.
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is the sequence of a dna strand is AAGCCA what are the bases on its complementary strand
Answers
Is it possible that any of the individuals in the pedigree in Figure
14-7 are homozygous dominant?
Answers
Answer: Yes
Explanation:
a school assembly had 55 students in attendance and 80% of them were first grades how many first graders were at the assembly
Answers
Answer:
44
Explanation:
55 * 0.8 = 44
If I helped, please make this answer brainliest ;)
which symptoms are consistent with crohn's disease? (select all that apply.) group of answer choices diarrhea constipation excessive folate dysphagia abdominal pain weight loss
Answers
Symptoms consistent with Crohn's disease include diarrhea, abdominal pain, and weight loss, options A, E and F are correct.
Crohn's disease is a chronic inflammatory condition that primarily affects the gastrointestinal tract. Persistent diarrhea is a hallmark symptom, often accompanied by urgency and frequent bowel movements. Abdominal pain is another common feature, typically cramp-like and localized to the lower right abdomen but can occur in any part of the abdomen.
Unintentional weight loss is frequently observed due to reduced appetite, malabsorption of nutrients, and increased metabolic demands associated with the disease. While other symptoms like fatigue, fever, rectal bleeding, and reduced appetite may also occur, diarrhea, abdominal pain, and weight loss are the most consistent indicators of Crohn's disease. Consulting a healthcare professional is essential for accurate diagnosis and appropriate management of the condition, options A, E and F are correct.
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The complete question is:
Which symptoms are consistent with crohn's disease? (select all that apply.) group of answer choices
A. diarrhea
B. constipation
C. excessive folate
D. dysphagia
E. abdominal pain
F. weight loss
Determine if the following statement is true or false and why: All organisms make their own food, but plants are the only kind to do so using sunlight. A. False, not all organisms can make their own food, only plants and some bacteria. B. False, all organisms can use sunlight to make food. C. False, plants cannot make their own food. D. True
Answers
Answer:
A. False, not all organisms can make their own food, only plants and some bacteria.
Explanation:
It's right
The description of the statement whether it is true or false is described below:
All organisms make their own food, but plants are the only kind to do so using sunlight. (False).Not all organisms can make their own food, only plants, and some bacteria. (True). All organisms can use sunlight to make food. (False). Plants cannot make their own food. (False). How do plants prepare their own food?Plants prepare their own food with the process of photosynthesis which utilizes carbon dioxide and water and synthesizes glucose in the presence of sunlight.
Plants, some photosynthetic algae, and some bacteria prepare their own food with the help of sunlight. They have a photosystem that captures the energy of sunlight in the food production mechanism.
Therefore, it is well described above.
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Please help me with these science questions about ecology!
Circle the letter of the choice that best completes the statement or answers the question.
11. Energy that is lost at each trophic level of an ecosystern is replenished by
a. heat.
b. nutrients.
sunlight
c. sunlight
d. organisms.
12. Besides energy, what moves through the organisms at each trophic level of an ecosystem?
a. organisms
b. nutrients
c sunlight
d. cycles
13. Evaporation and condensation a part of the
a. carbon cycle.
b. nitrogen cycle.
c phosphorus cycle.
d. water cycle.
14. Plants lose water to the air through
a. condensation
b. photosynthesis.
c. Their roots.
d. evaporation
15. Animals lose water when they
a. breathe in
b. urinate.
c breathe out
d. both b and c.
16. The major process by which water in the atmosphere is returned to the earth is
a. precipitation
b. evaporation
c. photosynthesis.
d. decomposition.
17. Autotrophs and heterotrophs use carbon-containing molecules for energy and for
a photosynthesis.
b. growth.
c decomposition
d. both a and b.
18. What do plants use in photosynthesis to make carbon-containing molecules?
a carbon dioxide
b. carbohydrates
c. fertilizer
d. oxygen
19. Heterotrophs get carbon-containing molecules by
a. making the molecules themselves.
b. feeding on other organisms.
c decaying.
d. growing.
20. When decomposers break down the carbon-containing molecules in dead organisms,
a. the dead organisms are converted to coal.
b. oxygen is released.
c carbon dioxide is released.
d. carbon dioxide is converted to energy-rich
carbon-containing molecules.
Answers
Answer:
11 is A. 12 B. 13 A. 14.D 15. C 16. D
1 of 11 of 1 Items
00:05
Feature
Geographic Isolation
Video Player
00:0001:32
Show Transcript
Question 1
Geographic isolation may result in
Responses
A extinctionextinction
B speciationspeciation
Question 2
Geographic isolation causes a reduction in ____________, eventually resulting in dissimilarities in a once-similar population of organisms.
Responses
A gene flowgene flow
B genetic mutationgenetic mutation
Question 3
Allopatric speciation is another name for
Responses
A speciation due to genetic mutationspeciation due to genetic mutation
B speciation by geographic isolation.
Answers
The answers to the questions are as follows:
Question 1:
Response: B speciation
Question 2:
Response: A gene flow
Question 3:
Response: B speciation by geographic isolation
Geographic isolation plays a significant role in shaping the evolution of species. Let's address each question individually:
Question 1:
Geographic isolation may result in:
Response: B speciation
Geographic isolation refers to the physical separation of populations of organisms due to geographical barriers such as mountains, rivers, or islands. When populations become isolated from each other, they experience different environmental conditions and selective pressures. Over time, these distinct environments can lead to genetic and phenotypic differences between the isolated populations. This divergence in characteristics can eventually result in the formation of new species, a process known as speciation. Therefore, option B, speciation, is the correct response.
Question 2:
Geographic isolation causes a reduction in ____, eventually resulting in dissimilarities in a once-similar population of organisms.
Response: A gene flow
Geographic isolation restricts or limits the movement of individuals between different populations. This restriction reduces the gene flow, which is the transfer of genetic material between populations. Gene flow is an important mechanism for maintaining genetic diversity and homogeneity within a population. When gene flow is reduced, isolated populations experience different genetic changes and accumulate genetic variations independently. Over time, these genetic differences can lead to dissimilarities in once-similar populations.
Question 3:
Allopatric speciation is another name for:
Response: B speciation by geographic isolation.
Allopatric speciation refers to the process of speciation that occurs when populations are geographically isolated from each other. The term "allopatric" means "different homeland." In this form of speciation, the physical separation of populations by a geographical barrier prevents gene flow between them. As a result, the isolated populations undergo independent evolutionary changes, leading to the formation of new species. Therefore, option B, speciation by geographic isolation, is the correct response.
In summary, geographic isolation can lead to speciation (Question 1), it reduces gene flow (Question 2), and the process of speciation by geographic isolation is known as allopatric speciation (Question 3).
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FILL IN THE BLANK._________________ most closely resembles events of mitosis except that the cells are ___________.
Answers
Meiosis most closely resembles events of mitosis except that the cells are haploid.
Understanding Mitosis and meiosisMitosis and meiosis are both processes of cell division, but meiosis specifically occurs in gamete cells to produce four genetically diverse haploid cells.
In mitosis, a diploid cell divides into two identical diploid cells, whereas in meiosis, a diploid cell divides into four genetically diverse haploid cells.
The events of mitosis and meiosis include the replication of DNA, condensation of chromosomes, alignment and separation of chromosomes, and cytokinesis.
However, meiosis includes two rounds of division, resulting in the separation of homologous chromosomes and sister chromatids. This process allows for genetic diversity in offspring, which is essential for the survival of a species.
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In a certain flower, Red (R) is dominant over white (r). Complete the Punnett Square for the
following cross:
Mother: Rr Father: rr
What percentage of offspring will be Red?
What percentage of offspring will be White?
Answers
Answer: 50% will be red and 50% will be white
Explanation: Make a punnet square
R r Rr=red rr=white
r Rr rr
r Rr rr
Answer:
50 percent of the offspring would be red
50 percent would be white
56) which of the following statements regarding fungi is false? a) most fungi are pathogenic for humans. b) fungi are eukaryotic heterotrophs. c) fungi reproduce by forming asexual or sexual spores. d) most fungi grow well in acidic culture condition. e) fungi tolerate low moisture conditions. 1/200
Answers
The false statement regarding fungi is that most fungi are pathogenic for humans.
Fungi are heterotrophic eukaryotic organisms that feed on organic matter. They are essential decomposers and play a vital role in nutrient cycling in the ecosystem. They can be unicellular, such as yeasts or multicellular, such as mushrooms. Fungi are distinct from other organisms in their mode of feeding. They cannot make their food like plants, so they absorb nutrients from other organisms. Fungi are categorized into different groups based on their mode of reproduction, habitat, and morphology. Most fungi are pathogenic for humans is a false statement regarding fungi. While some fungi are pathogenic to humans, most of them are not harmful. A few species of fungi are even beneficial to humans. For example, some fungi produce antibiotics like penicillin, which are used to treat bacterial infections. Some fungi are used in the production of bread, cheese, and beer.
So, the statement that most fungi are pathogenic for humans is incorrect. Fungi are eukaryotic heterotrophs: Fungi are eukaryotic, which means they have a membrane-bound nucleus and other organelles. They are also heterotrophic, which means they feed on other organisms. Fungi reproduce by forming asexual or sexual spores: Fungi reproduce either sexually or asexually. Sexual reproduction involves the fusion of two nuclei from two different individuals. Asexual reproduction, on the other hand, does not involve the fusion of nuclei. Instead, a single individual produces spores that develop into new individuals. Most fungi grow well in acidic culture conditions: Fungi can grow under a wide range of conditions. However, most fungi prefer acidic conditions. Some fungi can even tolerate extreme pH values. Fungi tolerate low moisture conditions: Fungi require moisture to grow, but they can tolerate low moisture conditions for a while. Some species of fungi can survive for years without water. However, most fungi grow best under moist conditions.
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Plants use sunlight, carbon dioxide from the air, and water from the soil to make their food matter.
True
False
Answers
Answer:
•The answer is True
•
•
•
Why is it ecologically significant that animals are heterotrophic and multicellular? Match the terms in the left column to the appropriate blanks in the sentences on the right: Not all terms will be used: Reset Help larger Many unicellular organisms are heterotrophic, but they can consume only______ food, small bits of Animals are multicellular; so they are ______which makes them able t0 consume smaller_______ food: This is extremely important in formation of _______. . less/larger/small bites of/ smaller/more/liquid/food webs/solid/pylogenetic trees
Answers
Many unicellular organisms are heterotrophic, but they can consume only smaller bits of food. Animals are multicellular; so they are larger, which makes them able to consume smaller solid food: This is extremely important in formation of food webs.
The fact that animals are heterotrophic and multicellular is ecologically significant for several reasons. Many unicellular organisms are heterotrophic, but they can only consume small bits of solid food.
However, animals are multicellular, which allows them to consume smaller solid food and larger prey. This gives animals the ability to occupy higher trophic levels in food webs, which in turn affects the entire ecosystem.
The consumption of solid food by animals is particularly important for the formation of food webs and the development of phylogenetic trees, which show the evolutionary relationships between organisms. By consuming other organisms, animals play a key role in transferring energy and nutrients through the food chain. This, in turn, affects the entire ecosystem and contributes to the diversity and complexity of life on Earth.
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