What is the one truly pathogenic oral bacterium?
Answers
The one truly pathogenic oral bacterium is believed to be Streptococcus mutans.
This bacterium is responsible for the formation of dental caries (cavities) and can also contribute to the development of periodontal disease. It is commonly found in the mouth and feeds on sugars and carbohydrates, producing acid as a byproduct that can erode tooth enamel. Proper oral hygiene, including regular brushing and flossing, can help prevent the growth and spread of S. mutans. This bacterium is primarily responsible for dental caries (tooth decay), which is a common oral disease that affects people of all ages. S. mutans is able to colonize the surface of teeth and produce acid as a byproduct of its metabolism, which can erode the enamel and dentin of the tooth, leading to cavities.
While other oral bacteria may also contribute to dental caries, S. mutans is considered to be the most significant pathogenic bacteria associated with this condition. Effective oral hygiene practices, such as regular brushing and flossing, can help to prevent the growth and spread of S. mutans and reduce the risk of dental caries.
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Related Questions
Which process releases oxygen?
1.
photosynthesis
2.
cellular respiration
3.
dehydration synthesis
4.
decomposition
Answers
Answer:
Photosynthesis
Explanation:
Photosynthesis creates most of the oxygen we breathe. The process uses carbon dioxide, sunlight, and water to create energy. It also creates the oxygen that is released into the air.
Hope this helps
what is a weakness or limitation for using orbeez as a model for a cell?
Answers
Answer:
You cant make the organells that detailled or make them at all for that matter?
Explanation:
what factors are responsible for increasing the size of a population?
Answers
Answer:
Economic development
Explanation:
1. Natural increase: This refers to the difference between the number of births and the number of deaths in a population. If the number of births is greater than the number of deaths, the population will grow.
2. Immigration: If people move into a population from other areas, it can contribute to population growth.
3. High fertility rates: A high fertility rate, or the average number of children a woman has during her reproductive years, can also contribute to population growth.
4. Increased life expectancy: If people are living longer due to advances in medicine and public health, the population will grow.
5. Changes in social norms: Changes in social norms, such as the acceptance of smaller families, can also impact population growth.
It's worth noting that population growth is not always a positive thing, as it can put strain on resources and the environment. Some countries have implemented policies to encourage smaller families and slow population growth.
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Spencer noticed that he eats 4-5 times a day but only poops about once a day. He wondered where all the food he eats ends up going. After all, he only gained 5 pounds last year.
Answers
The food you eat is decreased in a number of ways as it passes through your digestive tract, water is taken in, nutrition is absorbed, some waste materials return to the bladder or intestines.
What is the digestive system?The digestive system is made up of the liver, pancreas, and gallbladder as well as the gastrointestinal tract, commonly known as the GI tract or digestive tract. From the mouth to the anus, the GI tract is made up of several hollow organs connected by a protracted, twisted tube. The stomach, small intestine, large intestine, and anus are the hollow organs that make up the GI tract. The digestive system's solid organs are the liver, pancreas, and gallbladder.
Three sections make up the small intestine. The duodenum is the name of the first section. The ileum is at the end, while the jejunum is in the middle. The cecum, colon, rectum, and appendix are all parts of the large intestine. A finger-shaped pouch connected to the cecum is the appendix.
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Which of the following is NOT a component of DNA?
a. The pyrimidine uracil
c. The purine adenine
b. Five-carbon sugars
d. Phosphate groups
Answers
Answer:
A
Explanation:
Which discoveries by Galileo support the heliocentric model?
A. Saturn has rings around it; planets move in ellipses.
B. Moons revolve around Jupiter; Saturn has rings around it.
C. Planets move in ellipses; Venus, like the moon, goes through phases.
D. Moons revolve around Jupiter; Venus, like the moon, goes through phases.
Answers
F moon revolve
Explanation:
Galileo's discoveries about the Moon, Jupiter's moons, Venus,Galileo's work laid the foundation for today's modern space probes and telescopes.
Create a hypothesis: Plant and grow the P1 and F1 seeds. Open the Develop hypothesis window and fill in all of the possible genotypes for P1, F1, and P2 as you did before. Suppose you started with the hypothesis that the P1 plants were anl/anl, YGR/YGR and the P2 plants were ANL/ANL, ygr/ygr.
If that were true, what would be the genotype of the F1 plants?
Answers
If the P1 plants were ANL/ANL, YGR/YGR and the P2 plants were anl/anl, ygr/ygr, then the genotype of the F1 plants would be ANL/anl, YGR/ygr. In conclusion, based on the given hypothesis, the genotype of the F1 plants would be ANL/anl, YGR/ygr.
The hypothesis can be stated as follows: When plants with the genotypes ANL/ANL, YGR/YGR (P1) are crossed with plants with the genotypes anl/anl, ygr/ygr (P2), the F1 plants will have the genotype ANL/anl, YGR/ygr.
This hypothesis is based on the understanding of dominant and recessive genes, and how they are passed down from parent plants to their offspring. The P1 plants have dominant genes for both anlagen and yellow-green pods, while the P2 plants have recessive genes for both traits.
When these plants are crossed, the dominant genes will be expressed in the F1 generation, resulting in plants that have the ANL/anl and YGR/ygr genotype. This is because dominant genes mask the expression of recessive genes when present in an individual's genotype.
In conclusion, based on the given hypothesis, the genotype of the F1 plants would be ANL/anl, YGR/ygr.
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What force will a cannonball have if it has a mass of 4 kg and accelerates it to 110 m/s²?
Answers
F = ma, you could change this to a = F/m to get a better understanding of the equation. Acceleration and force are directly proportional. The mass is inversely proportional to acceleration. This means the net force will be in the same direction as the acceleration.
Alright back to the problem:
F = 4kg*110m/s^2
F = 440N
when does land breeze blow and why?
Answers
help help help help help
Answers
B
Explanation:
I'm pretty sure it's B
sorry if it's not
Proteins and carbohydrates are alike in that both
А encode DNAinformation in cells.
B provide structural support in cells.
C transmit RNA information in cells.
D dissolve structural support in cells.
Answers
Answer:
A
Explanation:
15 points+brainliest!! please help asap! i need this done rn :(
Answers
Explanation: The two animals were walking peacefully until they came in contact with each other/noticed each other. They fought, and one animal won. It is possible that the green-footprint animal killed the red-footprint animal.
1. two different footprints; red and green.
2. The green footprints are larger than the red footprints
3. the green footprints were the only ones to walk away.
Logical Explanation:
The animal with the green and larger footprints comes in contact with a smaller animal with smaller footprints. The green footprints represent a primary animal, while red represent a secondary animal. The green footprint animal is the only one with footprints walking away because the primary animal, aka the bigger animal, ate the secondary animal.
the term that means an abnormal benign growth on the surface of a bone is
Answers
The term that means an abnormal benign growth on the surface of a bone is called an osteochondroma. This type of growth is the most common benign tumor of the bone, accounting for about 35% of all bone tumors.
Osteochondromas typically develop during childhood and adolescence and are more commonly found in males than females. They can occur in any bone but are most frequently found in the long bones of the arms and legs. Osteochondromas are usually painless and do not cause any symptoms unless they grow large enough to affect nearby tissues or nerves. In rare cases, they can become malignant, which means they can turn cancerous. However, the risk of this happening is low, with less than 1% of osteochondromas developing into a malignant tumor.
Diagnosis of osteochondromas involves a physical examination, imaging tests such as X-rays or MRI, and sometimes a biopsy. Treatment depends on the size and location of the osteochondroma, but in most cases, surgery is not necessary unless it is causing pain or affecting the function of nearby tissues.
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Which amino acid sequence can be coded from the following DNA sequence?
CAG TAG CGA
A) Valine - Aspartic Acid - Alanine
B) Valine - Isoleucine - Alanine
C) Valine - Phenylalanine - Alanine
D) Valine - Leucine - Glycine
Answers
PLEASE HELP
Which combination of activities reflects AEROBIC vs ANAEROBIC?
A. mile-run vs 100 yard dash
B. badminton vs tennis
C. yoga vs stretching
D. softball vs hockey
Answers
Name three adaptations that helped plants survive on land, and describe how each of them helped. (2 points)
Answers
Three adaptations that helped plants survive on land are cuticle, stomata, and roots. The cuticle protects plants from water loss and UV radiation. Stomata regulate gas exchange, and roots absorb water and nutrients.
When plants moved to land, they had to develop adaptations that would enable them to survive in an environment with fewer resources than they were accustomed to. Three adaptations that helped plants survive on land are discussed below:Cuticle: The cuticle is a waxy layer on the surface of the plant that protects it from water loss and desiccation. This layer is made up of cutin, a waterproof polymer, and is secreted by epidermal cells. The cuticle prevents water from evaporating from the surface of the plant, which is critical for survival in a dry environment. In addition, it also protects the plant from harmful ultraviolet radiation that can damage its DNA.Stomata: Stomata are tiny pores in the leaves and stems of plants that regulate gas exchange and water loss. They are surrounded by guard cells that regulate the opening and closing of the stomata. When there is a need to conserve water, the guard cells can close the stomata to prevent water from evaporating from the plant's surface. When there is a need for carbon dioxide, such as during photosynthesis, the guard cells can open the stomata to allow gas exchange.Roots: Roots are organs that anchor the plant to the ground and absorb water and nutrients from the soil. They allow plants to access water and nutrients that are necessary for survival. Furthermore, roots also help prevent soil erosion and provide support to the plant.Summary: Three adaptations that helped plants survive on land are cuticle, stomata, and roots. The cuticle is a waxy layer on the surface of the plant that prevents water loss and protects the plant from harmful ultraviolet radiation. Stomata are tiny pores that regulate gas exchange and water loss, and roots anchor the plant to the ground and absorb water and nutrients from the soil.For more questions on adaptations
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HELP!! CAN SOMEONE GIVE ME AN EASY SIMPLE DEFINITION OF WHAT INDEPENDENT AND DEPENDENT VARIABLES MEANS?
Answers
independent variable is the cause of a change in or effect on the dependent variable.
does red blood cell has cell wall?
Answers
Answer:
Option BExplanation:
A RCB (red blood cell) present in human beings does not have a cell wall, only plants have cell wall.
Here,
The RCB has,
Cell wall - absent
Nucleus - present
Option B
Which statement best illustrates a biotic or an abiotic factor that is often found in a city park
Answers
Answer:
"Decaying leaves are an abiotic factor because they are not living. Rocks are an abiotic factor because they have never been alive. Water in ponds is a biotic factor, because it provides a habitat for living things."
Answer:
Rocks are an abiotic factor because they have never been alive
Explanation:
Awnser on EDGE
hen several food chains come together, they are called __________.
Answers
for a species with a haploid number of 23 chromosomes, how many different combinations of maternal and paternal chromosomes are possible for the gametes based on the independent assortment of chromosomes during meiosis? for a species with a haploid number of 23 chromosomes, how many different combinations of maternal and paternal chromosomes are possible for the gametes based on the independent assortment of chromosomes during meiosis? 23 about 1,000 about 8 million 46
Answers
Different combinations of maternal and paternal chromosomes are possible for the gametes based on the independent assortment of chromosomes during meiosis are 2.3*10^22.
During meiosis, the chromosomes are randomly divided into the gametes. For a species with a haploid number of 23 chromosomes, there are 23 chromosomes in each gamete. Since meiosis involves the separation of homologous chromosomes, the maternal and paternal chromosomes separate independently of one another. In order to determine the number of different combinations of maternal and paternal chromosomes that are possible for the gametes based on the independent assortment of chromosomes during meiosis, we can use the formula for a binomial coefficient (n choose k), which is:
(n choose k) = n! / (k! * (n-k)!)
Where n is the total number of chromosomes (23) and k is the number of chromosomes from one parent (23/2 = 11.5).
So the total number of different combinations of maternal and paternal chromosomes that are possible for the gametes based on the independent assortment of chromosomes during meiosis is (23 choose 11.5) = 23! / (11.5! * (23-11.5)!) = 23! / (11.5! * 11.5!) which is approximately 2.3*10^22
It's important to note that this is a very large number, and that these are only possible combinations, not all of them will result in viable offspring.
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Compare and contrast the structures and functions of simple sugars and complex carbohydrates.
Answers
Answer:
Complex carbohydrates contain longer chains of sugar molecules than simple carbohydrates. The body converts these sugar molecules into glucose, which it uses for energy. As complex carbohydrates have longer chains, they take longer to break down and provide more lasting energy in the body than simple carbohydrates.
Simple Sugars or Simple Carbohydrates can help regulate blood sugar level, while Complex Carbohydrates are what gives the body a main energy source.
This the the structural difference between them:
Simple sugars are called monosaccharides, made up of single sugar molecules.
Complex carbohydrates are made up of sugar molecules that are strung together in long, complex chains. Complex carbohydrates (polysaccharides) comprise starches and dietary fibers. Because they are polysacchrarides they have multiple molecules molecular bonded together.
The structure of simple sugar is referred to as monosaccharides which are made up of simple sugar molecules. Examples of this form include glucose, fructose, galactose, etc.
What is the structure of complex carbohydrates?The structure of complex carbohydrates arises from long and complex chains of simple sugars which are held together by 1,4 glycosidic linkage. Examples include starch, cellulose, etc.
The function of simple sugar is to regulate the blood glucose level and provide direct energy to the cells for their metabolic processes.
The function of complex carbohydrates is to store energy for the situation of deficiency.
It also provides vitamins, minerals, and other fibers that are essential for maintaining the good health of the individual.
Therefore, it is well described above.
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population density is found by dividing the number of organisms in an ecosystem by the total area of the ecosystem. if 50 square meters of an ecosystem are surveyed and 5 rabbits are sighted, what is the estimated population density of the rabbits?
Answers
5 rabbits per 50 square meters which means 10 will be the population density in the ecosystem survey
A population is a collection of members of the same species who live and reproduce in one particular location. The population density, or the number of people per unit area, is determined by the total number of people residing in that particular area.Numerous creatures' location, development, and migration can all be described using population density.
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15. Will the asteroid belt be able to coalesce into a 9th planet with the current configuration
of the solar system?
I
Answers
Answer:
No.
Explanation:
No, the asteroid belt is not able to unite into a 9th planet because there is not enough total mass in the belt to form a planet. the other reason is that the belt is too close to Jupiter which make impossible to make the asteroid belt a planet. When this formation of new planet happens between the asteroid and Jupiter, Jupiter's gravitational forces act on the asteroid add up and strengthen each other, and they can easily kick the asteroid out of the solar system.
One of the resulting difference between alpha 1-4 glycosidic linkages (as in amylose) and beta 1-4 glycosidic linkages (as in cellulose) between glucose molecules is: Select one:
alpha 1-4 glycosidic linkages are found at the start of a molecule and beta 1-4 glycosidic linkages are found at the end of that molecule.
None of these answers are correct.
alpha 1-4 glycosidic linkages produce more metabolic energy than beta 1-4 glycosidic linkages.
alpha 1-4 glycosidic linkages can be digested by human enzymes; beta 1-4 glycosidic linkages cannot be digested by human enzymes.
alpha 1-4 glycosidic linkages are found in amylose whereas beta 1-4 glycosidic linkages are found in starch.
Answers
One of the resulting difference between alpha 1-4 glycosidic linkages (as in amylose) and beta 1-4 glycosidic linkages (as in cellulose) between glucose molecules is that alpha 1-4 glycosidic linkages can be digested by human enzymes; beta 1-4 glycosidic linkages cannot be digested by human enzymes.
Glycosidic linkages are covalent bonds that hold carbohydrates together. There are several types of glycosidic linkages, including alpha 1-4 and beta 1-4 glycosidic linkages.
Alpha 1-4 glycosidic linkages are found in amylose, which is a type of starch. These linkages can be broken down by human enzymes, such as amylase, which can digest starch into glucose.
Beta 1-4 glycosidic linkages, on the other hand, are found in cellulose, which is a type of structural carbohydrate found in the cell walls of plants. Humans do not have the enzymes necessary to break down these linkages, so we cannot digest cellulose.
Therefore, one of the resulting difference between alpha 1-4 glycosidic linkages (as in amylose) and beta 1-4 glycosidic linkages (as in cellulose) between glucose molecules is that alpha 1-4 glycosidic linkages can be digested by human enzymes; beta 1-4 glycosidic linkages cannot be digested by human enzymes.
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what type of inheritance controls blood types in humans.
Answers
Answer:
A gene l
Explanation:
Oxygen moves from blood into the interstitial fluid and then into body cells because I- descends down an osmotic gradient; 'following the movement of water: diffuses from a region of lower partial pressure to & region of higher partial pressure diffuses from a higher to a lower pH diffuses from a region of higher partial pressure pressure; to a region of lower partial
Answers
The correct answer is: diffuses from a region of higher partial pressure to a region of lower partial pressure.
This is because oxygen moves from an area of higher concentration to an area of lower concentration, which is known as a concentration gradient.
In the case of oxygen in the body, the partial pressure of oxygen is higher in the blood than it is in the interstitial fluid and body cells, so oxygen moves from the blood into the interstitial fluid and then into the cells.
This movement occurs passively, meaning that no energy is required. Overall, this process is essential for the survival of cells and the maintenance of bodily functions.
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Digestion is ________. Digestion is ________. only mechanical both mechanical and chemical neither mechanical nor chemical only chemical
Answers
Mechanical digestion is the breakdown of food into small particles from mouth to stomach, such as chewing
Chemical digestion is the chemical breakdown of food into small chemical substances, from mouth to the intestine. It utilises saliva, water and enzymes to break food down
Hemophilia is an X-linked recessive trait in humans. Would there be any offspring that would have hemophilia if the Mother is a carrier, and the Father is unaffected, and what would be the percentage of the affected offspring?
USE PHOTO!!
Answers
Answer:
yes.25%.
one carrier daughter. one hemophiliac son
one normal son,one normal daughter
You and a friend were talking about the role of genes and the environment and your friend said, "DNA is destiny. The environment doesn't influence who someone becomes at all, it is all determined by genes." What can you tell your friend about the interaction of genes and environment? Include two examples discussed in class or the textbook to support your point.
Answers
Genes and the environment both contribute to a person's characteristics. A person's characteristics are not solely determined by genes but the environment also has an impact on who someone becomes. Two examples discussed in class or the textbook that support this point are intelligence and obesity.
The development of intelligence is influenced by both genes and the environment. Studies have shown that the genetic influence on intelligence increases with age. However, the environment is also crucial in developing intelligence. Studies have also shown that children who are raised in a stimulating environment, which includes exposure to language, reading, and other educational materials, have higher intelligence scores than children who are raised in a less stimulating environment.
Obesity is another example of how genes and the environment interact. Some people are more likely to become obese due to their genes. However, the environment also plays a significant role in determining whether someone becomes obese. For example, if someone with a genetic predisposition to obesity lives in an environment with limited access to healthy food and opportunities for physical activity, they are more likely to become obese than someone with the same genetic predisposition who lives in an environment that promotes healthy eating and physical activity.
In conclusion, the interaction of genes and the environment is an essential aspect of understanding human characteristics. DNA is not destiny, and the environment plays a significant role in shaping who someone becomes.
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