An environment that provides only one or few nutrient sources usually harbors a microbial community with low species richness, while an environment rich in many different nutrient sources usually harbors a microbial community with high species richness.
what is a microbial community ?
Microorganisms that live together in a common environment are known as microbial communities. The microbial populations that make up the community can interact in a variety of ways, such as as symbionts or predators and prey.
The variety of species present in an ecological community, landscape, or area is known as its species richness. The number of species is all that is considered when measuring species richness.
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Developing a Self-Formed Ectodermal Autonomous Multi-Zone Organoid Model Using Human Stem Cells to Examine the Effect of Doxycycline Treatment on Uveal Melanoma
Developing a Self-Formed Ectodermal Autonomous Multi-Zone Organoid Model Using Human Stem Cells to Examine the Effect of Doxycycline Treatment on Uveal Melanoma.
The body's building blocks are stem cells, which are cells that give rise to all other cells with specific roles. Daughter cells are created when stem cells divide properly in the body or a lab to create more cells.
Researchers insert stem cells into the apparatus, either human embryonic stem cells or induced pluripotent stem cells, which can be created from adult cells. Then, the researchers add chemicals to nearby wells that trigger cells to develop essential human embryonic features.
Stem cells are found in a wide variety of organs and tissues throughout the body, including the brain, blood, bone marrow, muscle, skin, heart, and liver tissues. They are dormant in these regions until required to regenerate lost or damaged tissue.
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the activity of an enzyme might be increased by all of the following except the presence of other enzymes.
Answer:
the presence of lead
Explanation:
I hope this help
The activity of an enzyme might be increased by all of the following except lead, which is in option D. Lead is a heavy metal that can act as an inhibitor of enzymatic activity, so option D is correct here.
Enzymes are biological catalysts, which means they are molecules that speed up chemical reactions in living organisms without being consumed or altered in the process. Almost all biochemical reactions in cells require enzymes to proceed at a rate that is sufficient for life. They play a crucial role in various metabolic pathways, allowing cells to carry out essential processes such as breaking down nutrients, building cellular structures, and regulating cellular functions. The enzyme-substrate interaction is highly specific, like a lock and key. Only substrates with a complementary shape to the enzyme's active site can bind to it.
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Complete question is below,
The activity of an enzyme might be increased by all of the following except ________?
A. increase in substrate concentration.
B. a vitamin.
C. 2-4 degree increase in temperature.
D. lead.
what is ribosomes ??
Answer:
Definition. A ribosome is an intercellular structure made of both RNA and protein, and it is the site of protein synthesis in the cell.
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The y-5 molar morphology is present in?
Answer:
it is presented in chimpanzees
The teeth of some primates, notably great apes and some hominoids, have a y-5 molar morphology.
This phrase describes the arrangement or pattern of cusps on the molar teeth. When viewed from above, the cusps are shaped like the letter "Y", with additional cusps arranged in a "5" shape, hence the name "y-5". The paracone, metacone and hypocone – the three primary cusps present with smaller accessory cusps – define this molar morphology. The Y-5 molar arrangement is considered a fundamental feature of the dentition of hominoids, reflecting their shared heritage.
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(ii) The number and size of the Golgi apparatus in the maize cell increases during
one stage of the cell cycle.
In which stage of the cell cycle would the number and size of the Golgi
apparatus increase?
Answer:
Explanation:
Golgi protein levels increase during interphase. The Golgi apparatus, like other organelles, is thought to double in size or number prior to equal partitioning between daughter cells (2).
The ________ plate count (SPC) method involves diluting 1.0m of bacterial culture into a series of water blanks, and then taking a sample from the water blanks to add to empty petri plates which will be filled with melted agar.
The standard plate count (SPC) method involves diluting 1.0m of bacterial culture into a series of water blanks, and then taking a sample from the water blanks to add to empty petri plates which will be filled with melted agar.
The standard plate count is a method used in microbiology, which is used to gain an insight to estimate the density of bacterial population which is present in a bacterial culture broth. This is done by plating a small concentration of the culture in a petri-dish and then counting the colonies which form in the petri-plate. This method is used mostly in the food industry, to find the density of mesophilic bacteria in food. This method is extremely essential to determine the primary source of the bacterial contaminant.
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Sexual reproduction produces ______, while asexual reproduction produces ______.
Answer:
Sexual reproduction produces genetically different offspring from two parents while asexual reproduction produces genetically identical offspring from one parent.
Sexual reproduction will see to the offspring taking half of their genetics from the father (male), while the other half comes from the mother (female). The offspring would further inherit based on whether the traits are dominant or recessive. However, in asexual reproduction, there is only one parent, so all the traits are passed down.
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What causes clouds to condense and form?
Select one:
O a. As cold air sinks, water vapor is released.
O b.
As hot air rises, water vapor is released.
O c.
As winds drive cold air across the Earth's surface, water vapor is released.
O d. As winds drive hot air across the Earth's surface, water vapor is released.
Answer:
C
Explanation:
As winds drive cold air across the Earth's surface, water vapor is released.
Answer:
B
Explanation:
Water is constantly cycling through the atmosphere. Water evaporates from the Earth's surface and rises on warm updrafts into the atmosphere. It condenses into clouds, is blown by the wind, and then falls back to the Earth as rain or snow.
Which three factors limit descriptive and comparative investigations? A. The features of objects that you cannot see B. The amount of time or money required C. The way you must write hypotheses D. The number of variables you can have E. The number of observations you can make
Three factors which limit descriptive and comparative investigations are:
The way you must write hypothesesThe number of observations you can makeThe amount of time or money requiredWhat are scientific investigations?Scientific investigation simply refers to a plan or way of making scientific enquires, testing and confirming possible results
So therefore, the amount of time or money required is one of the limitations of scientific research
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respirations are documented as 14, reg, normal. Reg is referring to what aspect of her respirations
Respirations rate is 12-18 breaths per minute.
RespirationsA person's breathing and the entry and exit of air from the lungs are referred to as respiration. The respiratory system eliminates waste products like carbon dioxide and serves to keep the acid-base balance in the body by supplying oxygen to bodily tissues for cellular respiration. Expiration, on the other hand, is the process through which air leaves the lungs. Inspiration causes air to enter the lungs. When measuring respiratory rate, a respiratory cycle is referred to as one breath or one inspiration followed by one exhalation. Rate, rhythm, and quality of respiration are all evaluated. An individual usually breathes quietly and with ease.
respirations are documented as 14, reg, normal. Reg is referring to what aspect of her respirations
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Sort each daughter cell into the appropriate bin depending on which arrangement at metaphase I would create it.
During metaphase I, the homologous chromosomes are arranged in the center of the cell with the kinetochores facing opposite poles.
What is metaphase? Explain metaphase I.
After prophase, the mitotic cell division process moves on to metaphase. The alignment of the duplicated chromosomes at the metaphase plate, an equatorial plate, is what gives metaphase its name. By microtubules attached to its kinetochore, one of the sister chromatids is joined to one pole of the cell, and the other sister chromatid is associated with the other pole.
The homologous chromosomal pairs align on either side of the equatorial plate during metaphase I. The second stage of meiosis I is called metaphase I. The pairing off and DNA exchange between homologous chromosomes by homologous recombination and crossover at chiasma(ta) between non-sister chromatids are highlighted in prophase I, which comes after prophase I.
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Amino acids that must be obtained from foods in order for the body to function properly are called?
Amino acids that must be obtained from foods in order for the body to function properly are called essential amino acids.
The body is unable to produce essential amino acids. They must therefore originate from food. Organic substances known as amino acids are primarily made up of nitrogen, carbon, hydrogen, and oxygen.Twenty distinct amino acids are required by your body for growth and optimal operation. Despite the fact that all 20 of these are crucial for your health, just nine are considered essential.These include valine, tryptophan, isoleucine, leucine, lysine, methionine, phenylalanine, and threonine.While your body may produce non-essential amino acids, it is unable to produce essential amino acids; therefore, you must obtain them through diet.Animal proteins including meat, eggs, and poultry are the richest providers of necessary amino acids.But some plant meals, such edamame and tofu made from soy, do contain all nine essential amino acids. They are "complete" sources of protein.
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Red-green color blindness is an x-linked recessive trait in humans. Two people with normal color vision have a son with colorblindness. Given this information, the genotypes of the parents are ________.
Some ______ are able to metabolize oil and have been used in the cleanup of oil spills.
The bacteria are able to metabolize oil and have been in the cleanup of oil spills.
There are many well-known types of microbes discovered by discovers/researchers, for example- Bacteroidetes, have the potential to degrade hydrocarbons. During an oil spill, these low-abundance microbes sense hydrocarbons and move toward the source where they flourish and reproduce. Some of the microbes use oil as fuel.
It is found that the Bioremediation is used to clean up oil spills or contaminated groundwater. Bioremediation may be done 'in - situ' at the site of the contamination or 'ex - situ' environment.
There is a specie called Pseudomonas putida which is widely used in oil spill bioremediation. It is there to break down many aromatic compounds like hydrocarbons.
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What keeps the airways clear?
A. Spiracles near airway openings.
B. Pleural fluid in the thoracic cavity.
C. Mucin secreted by goblet cells in the bronchus.
D. Passage through squamous epithelial cells.
abc or d with a simple explanation
pls be sure of ur answer
What keeps the airways clear are the Spirals near the airway openings.
A. Spirals near airway openings.What keeps your airways open?The walls of the trachea (TRAY-kee-uh) are reinforced by rigid rings of cartilage to keep it open. The trachea is also lined with cilia, which sweep fluid and foreign particles out of the airways so they stay out of the lungs.
What is trachea?The trachea, also known as the windpipe, is a cartilaginous tube that connects the larynx to the bronchi of the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs. The trachea extends from the larynx and branches into the two primary bronchi. At the top of the trachea the cricoid cartilage attaches it to the larynx. The trachea is formed by a number of horseshoe-shaped rings, joined together vertically by overlying ligaments, and by the trachealis muscle at their ends. The epiglottis closes the opening to the larynx during swallowing.
With this information, we can conclude that With this information, we can conclude that the correct answer is A. Spirals near airway openings
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The biological species concept emphasizes the ability of individuals to ______________.
The biological species concept emphasizes the ability of two individuals to successfully produce viable, fertile offspring.
The Biological Species Concept defines a species taxon as a group of organisms that can successfully interbreed and produce fertile offspring.
According to that concept, a species' integrity is maintained by interbreeding within a species as well as by reproductive barriers between organisms in different species.
The biological species concept (BSC) was designed to aid understanding of biological diversity, particularly the ubiquitous observation that sexually reproducing organisms exist in more or less distinct phenotypic and genetic clusters rather than in a continuum of forms.
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Paleontologists organize fossils of related species based on their __________________ similarities
Paleontologists organize fossils of related species based on their physical similarities.
Paleontologists discover and examine the remains of extinct organisms to learn about evolution.Any remnant of ancient life preserved in a geologic setting is referred to as a fossil or paleontological resource.
Fossils provide a direct link to the lifestyles, environments, and climatic conditions of the past. They reveal how life, the environment, and the climate have evolved over time and how living things have reacted to those changes. These teachings are especially crucial now that the modern climate is changing more and more.
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An ecosystem is Multiple choice question. a collection of different species that interact. a group of populations in a given area. a community with all the living and nonliving components. another term used for a community.
Answer:
a community with all the living and nonliving components
Explanation:
A coral reef is a complex ______ of calcium carbonate shells that are home to microbes, algae, invertebrates, and fishes, and its high productivity helps provide great species richness.
The most critical element of the biofeedback process is: Group of answer choices change in rate of breathing. immediate information on the status of a biological system. an understanding of how and why the process occurs. change in heart rate.
b. immediate information on the status of a biological system.
What does a biological system mean?A biological system is a collection of organs that cooperate to carry out a certain task. For instance, the circulatory system transports nutrients and waste products to and from the body's cells, while the skeletal system protects and supports the body.
Cells, organelles, macromolecular complexes, and regulatory pathways are examples of biological systems that exist on the micro to nanoscopic scale. A living system, such as an organism, should not be confused with a biological system.
The aim of systems biology is to understand vastly complex biological systems in a way that enables us to model and predict how they will behave.
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a biologist treats a cell with a certain chemical that inhibit the cell ability to synthesise DNA
if this cell is treated to undergo the process of the cell cycle which phase is affected. give two reasons.
If the cell treated with a chemical that inhibits DNA synthesis is treated to undergo the process of the cell cycle, the phase that will be affected is the S-phase of interphase.
What is interphase?The interphase stage of cell division is the resting stage between two successive divisions.
The interphase is further grouped into three phases namely:
G1 phaseS-phase or synthesis phaseG2 phaseThe synthesis phase of interphase is the stage where new DNA strand is synthesized, hence, if the cell treated with a chemical that inhibits DNA synthesis is treated to undergo the process of the cell cycle, the phase that will be affected is the S-phase of interphase.
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Which of the following could be a nucleotide of DNA?
A.) deoxyribose + phosphate group + thymine B.) deoxyribose + phosphate group + uracil
C.) ribose + phosphate group + thymine
D.) ribose + phosphate group + uracil.
Many people have said A and many have said D, so im very confused.
Answer:
A.) should be the answer.
The ________ is most commonly found in nature.
The wild-type trait is the most commonly found in nature.
What is wild-type trait?Wild-type trait is defined as the type of trait that is mostly the phenotype of an organism that is abundant in nature.
Examples of wild-type trait are:
orange and black tigers are the wild type and albino tigers are the mutant typeBlack and brown rats are the wild type while the albino rats are the mutants.Learn more about mutation here:
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The center of our galaxy contains a very intense source of radio and x-ray radiation named sgr a*. what is it about this source that supports the idea that the radiation comes from a black hole?
The radiation is coming from an incredibly small object. This source supports the idea that the radiation comes from a black hole.
The rotating and barycenter of the Milky Way galaxy is known as the Galactic Center (or Galactic Centre). Sagittarius A*, a compact radio source that is almost perfectly at the galactic rotational center, is the galaxy's central massive object and is a supermassive black hole with a mass of roughly 4 million solar masses.Hawking radiation is a result of how quantum fields behave when there is substantial gravity present. Astronomers search for a signal of light from stuff that heats up as it falls into the black hole in order to find this form of radiation, which is only significant for extremely small black holes.SgrA is a radio emission source that is situated in the galaxy's nucleus. Within 1 light year away. , several hundred stars are crowded around it.learn more about black hole here: https://brainly.com/question/16758691
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A population of 20,000 individuals is surveyed and found to be composed of 9,800 individuals with blond hair and 10,200 with brown hair. The allele for blond hair "b" is recessive to the allele for brown hair "B". Assuming Hardy-Weinberg conditions, the frequency of the Bb genotype in the population is:
A population of 20,000 individuals is surveyed and found to be composed of 9,800 individuals with blond hair and 10,200 with brown hair. The allele for blond hair "b" is recessive to the allele for brown hair "B". Assuming Hardy-Weinberg conditions, the frequency of the Bb genotype in the population is 42%.
What is Hardy Weinberg equilibrium?Hardy Weinberg law states that,
“In a large, random-mating population, the genotype and allele frequencies remain constant in the absence of any evolutionary influences from one to another generation. Influences are inclusive of a choice of mate, natural selection, genetic drift, mutation, sexual selection, gene flow, genetic hitchhiking, founder effect, meiotic drive, population bottleneck, inbreeding and assortative mating.”
Application of Hardy Weinberg equilibrium,
The Hardy-Weinberg equilibrium provides a mathematical criterion of a population that is non-evolving which can be compared to evolving populations. The law offers a prototype which is typically used as a point of origination to study the population genetics of diploid entities, which fulfil the fundamental assumption of random mating, large population, no mutation, migration or selection.Allele frequencies can be detected in the presence of complete dominance when Hardy-Weinberg equilibrium prevails wherein it is not possible to differentiate between two genotypes.To learn more about Hardy Weinberg equilibrium,
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Several uses of Fungi are...
They are used in making bread and cheese
They are used in making some medicines
They are the decomposers in many ecosystems
They reproduce by spores
The several uses of fungi are as follows:
They are used in making bread and cheeseThey are used in making some medicinesThey are the decomposers in many ecosystemsWhat are fungi?Fungi are members of the kingdom Fungi characterized by being eukaryotic and have a chitin cell wall but no chlorophyll or plastids.
Fungi may be unicellular or multicellular. Examples of unicellular fungus is yeast while an example of multicellular fungus is mushroom.
However, fungi can be beneficial as well as pathogenic. Some uses of fungi are as follows:
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The portion of the large intestine found between the transverse and sigmoid colon on the left side of the abdominal cavity is the colon.
Descending colon is found between the transverse and sigmoid colon on the left side of the abdominal cavity.
What are the components of large intestine?The cecum, colon, rectum, and anus are the components of the large intestine. Mesenteries are tissue folds that hold the colon and rectum in the belly.
Caecum: The colon and ileum (the last part of the small intestine) are connected by a pouch-like channel called the cecum.
Colon: The longest part of the large intestine is the colon. There are 4 sections in the colon-
Ascending colon: The colon begins with the ascending colon. It is located on the abdomen's right side. It continues upward until it reaches the hepatic flexure, a bend in the colon.Transverse colon: Following the ascending colon and hepatic flexure is the transverse colon. The upper portion of the abdomen is where it is located. The splenic flexure, a bend in the colon, marks its conclusion.Descending colon: The transverse colon and splenic flexure are followed by the descending colon. The abdomen's left side is where it is located.Sigmoid colon: The colon's final section, the sigmoid colon, joins to the rectum.Rectum: The lower portion of the large intestine that joins the sigmoid colon is known as the rectum. Its length is roughly 15 cm (6 in). It takes waste from the colon and keeps it there until the anus allows it to leave the body.
Anus: The aperture at the bottom end of the rectum known as the anus is where feces exits the body.
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If more water is entering a human red blood cell than exiting it, then the cell is surrounded by a(n) ______ solution
If more water is entering a human red blood cell than exiting it, then the cell is surrounded by a hypotonic solution.
What is a hypotonic solution?A hypotonic solution can be defined as any solution or media where the content of solute (eg., glucose molecules, saccharose, etc) is lower than the solute concentration in the cell.
Conversely, a hypertonic solution can be defined as any solution or media where the content of solute is higher than the solute concentration in the cell.
In conclusion, if more water is entering a human red blood cell than exiting it, then the cell is surrounded by a hypotonic solution.
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Which skill should samir improve to become more effective at participating in a formal discussion?
Samir should work on his communication and presenting skills in the language to become more effective at participating in a formal discussion.
A group discussion is a conversation about a certain subject among a number of people. Be confident, relevant to the issue, considerate of others, and use good, clear English when speaking during a group conversation.
Respect other speakers' contributions.You can learn something if you pay close attention to what other speakers have to say.Mention the things that fascinate you.Always keep in mind that a discussion is not a fight.Respect different points of view.Before you talk, give your contribution some thought.Try to stay on topic for the conversation.learn more about communication here: https://brainly.com/question/26152499
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