Lactobacillus in yogurt, some escherichia coli in the intestines of humans and animals, and rhizobium that fixes atmosphere nitrogen are all considered beneficial bacteria is true.
The health benefits of yoghurt, which is made when milk is fermented by the bacteria Lactobacillus delbrueckii subsp. bulgaricus and Streptococcus thermophilus, have been known for a very long time. Researchers have concentrated on the scientifically proven effect of yoghurt cultures alone on gut metabolism in a few papers. Yogurt bacteria have been demonstrated to impact intestinal transit time, boost the gut immune system, and improve lactose digestion in lactose intolerant people, while some authors were unable to support these findings. Researchers have also looked at the immunological and genetic underpinnings of the immunostimulatory characteristics of yoghurt starters.Live microorganisms that, when given in sufficient quantities, boost the host's health are known as probiotics.To learn more about Lactobacillus.
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Which type of epithelium is composed of a single layer of cells that are attached to a basement membrane, but not all the cells reach the apical surface of the epithelium?.
The pseudostratified epithelium is the type of epithelium that is composed of a single layer of cells that are attached to a basement membrane, but not all the cells reach the apical surface of the epithelium.
Columnar epithelium cells are the types of cells that form the pseudostratified epithelium. This kind of epithelium is made from a single layer of cells although it appears to be multilayered because of stratification. The single layer of the pseudostratified epithelium cells is attached to the basement membrane. However, not all cells from the pseudostratified epithelium reach the apical surface of the epithelium.
These pseudostratified epithelium cells also show the property of either possessing cilia or being nonciliated.
Pseudostratified epithelium cells are generally present in the mucus-secreting areas of the body. The respiratory tract is the place where the pseudostratified epithelium is present in the majority.
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Helppp
The graph shows three different projections of human population growth. Which two colored lines on the graph show the human population reaching carrying capacity?
A.Line B and line C
B.Line A and line C
C.Line B and line D
D.Line A and line B
The two colored lines on the graph that show the human population reaching carrying capacity are Line B and line C. Thus, the correct option for this question is A.
What is Carrying capacity?Carrying capacity may be defined as the maximum number of individuals that can be supported by a habitat. the carrying capacity of the habitat must depend on two factors. They are as follows:
The food to eat.The space to live.Line B and line C are demonstrating the human population that reaching carrying capacity. This is because both these two lines after attaining a certain value must be declining in a gradual manner. This is the attribute of carrying capacity.
Therefore, the two colored lines on the graph that show the human population reaching carrying capacity are Line B and line C. Thus, the correct option for this question is A.
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A bee is carrying pollen from one flower to another. The pollen contains sperm and the flower contains an egg. This is an example of which form of reproduction?
The example where a bee is carrying pollen from one flower to another (pollen contains sperm and the flower an egg) makes reference to sexual reproduction.
What is sexual reproduction?Sexual reproduction is a type of reproduction that involves the fusion of two (2) gametic germinal cells, in this case the egg cell and the sperm cell, which form a zygote (diploid cell).
In conclusion, the example where a bee is carrying pollen from one flower to another (pollen contains sperm and the flower an egg) makes reference to sexual reproduction.
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Which phrase is an example of a biotic factor?
A- Yearly snowfall
B- Moisture in the air
C- Available nitrogen in the soil
D- The density of snakes in a desert
I'm giving brainliest to the quickest and first right person! This is worth 100 points!!!!!!!!! I'm doing a test rn.
Answer:
a
Explanation:
Juan received a class assignment to write about organisms that live in extreme environments. While doing research online, he found an image that showed microbial bodies thriving in hot springs. The organisms lacked a nucleus or defined organelles. Which organisms can he possibly find in such conditions?
Answer:
Archaea
Explanation:
Most archaea species are epiphytes (for example, thermophiles or halophiles), which means they live in harsh environments where few or no other organisms can survive.
Records show that 19 million firearms were sold in the U.S. during 2020. Assume the average
firearm sold for $500 and the Pittman-Robertson Act collected an 11-percent excise tax. How much money was raised for conservation from the sale of firearms during 2020? Be sure to show your work.
50 points
The amount of money that was raised for conservation from the sale of firearms is = $8,455,000,000
Calculation of total cost of firearmsThe number if firearms sold in U.S. during 2020= 19,000,000
The cost of an average firearm = $500
The tax collected per firearm by Pittman-Robertson Act = 11%.
That is, 11% of $500
= 11×500/100
= $55 for every firearm
The total cost of 19million firearms
= 19,000,000 × 500
= 9,500,000,000
The total tax collected form 19 million firearms,
= 55 × 19,000,000
= 1,045,000,000
The amount raised for conservation;
= 9,500,000,000 - 1,045,000,000
= $8,455,000,000.
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Answer:
To calculate the amount of money raised for conservation from the sale of firearms during 2020, we'll follow these steps:
Step 1: Calculate the total revenue generated from firearm sales.
Total revenue = Number of firearms sold * Price per firearm
Total revenue = 19,000,000 * $500
Total revenue = $9,500,000,000
Step 2: Calculate the amount of excise tax collected.
Excise tax = Total revenue * Excise tax rate
Excise tax = $9,500,000,000 * 0.11
Excise tax = $1,045,000,000
Therefore, the amount of money raised for conservation from the sale of firearms during 2020, based on the given information, is $1,045,000,000.
Regulating basic biological needs is a function of the __________. a. cerebrum b. hypothalamus c. thalamus d. forebrain please select the best answer from the choices provided a b c d
Regulating basic biological needs is a function of the Hypothalamus.
What do the cerebellum and hypothalamus perform?Through its association with hypothalamus, the cerebellum regulates blood pressure waves, carotid sinus reflexes, somatic and autonomic symptoms of anger and humiliation, the nictitating membrane of the pupil, breathing, and gastrointestinal functions.
The hypothalamus controls the hormone system. It releases hormones to another part of your brain called pituitary gland, which sends hormones out your different organ.
So, option b will be correct.
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30 POINTS
This graph is displaying the exact same data you used to create your graph, but the graph looks much different.
If the data is the same, why does the graph look different? What might an indiscriminate viewer conclude about the temperature from looking at this graph?
The graph looks different because the plotted data are in a single line.
The conclusion that could be made by an indiscriminate viewer is that the temperature remained stable from the year 1880 to year 2018.
What is temperature?Temperature is defined as the degree of hotness or coldness of a body surface which can be measured in °C or °F.
The temperature of a body surface changes with time depending on the effects of the immediate external environments.
From the plotted graph above, the same data is being collected over a long period of time.
The graph appears different because the temperature of the surface remained stable from the year 1880 to year 2018.
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Help please!
Do you think space exploration distracts from or
enhances finding solutions to our environmental
problems here on Earth? Explain your opinion.
Space exploration unites us in ways that other global efforts do not because we see ourselves as humans first. This advantage won’t solve our problems, but it can shift our attitude toward something that is healthier than our current state. We know more about our planet thanks to our efforts to explore space.
What is the frequency of the a1a2 genotype in a population composed of 20 a1a1 individuals, 80 a1a2 individuals, and 100 a2a2 individuals?.
The frequency of a1a2 genotype is a population is 0.4.
Formula to calculate the a1a2 genotype frequency is: -
[tex]\frac{a1a2 genotype}{total genotype}[/tex] = [tex]\frac{80}{20 + 80 +100}[/tex] = 0.4
Genotype- The word "genotype" refers to an organism's whole gene pool, or, in other words, the genetic make-up of that creature. The phrase can also be used to describe to the alleles, or different versions of a gene, that an organism carries in a more specific meaning.
Population- A population is described as a collection of people who belong to the same species and cohabit a certain region. In order to survive throughout time, individuals of a population frequently rely on the same resources, are susceptible to the same environmental restrictions, and affect the availability of other members.
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Anyone knows the answer here!??
Answer:
the top one
Explanation:
plants kinda like breath carbon and you need water and energy to put all of the little thingys into sugar form
The sun rotates.
A. at different speeds along its sphere.
B. around Earth once per year.
C. every 31 days.
D. once per year.
Answer : D
Explanation:
(2 points) compared to most eukaryotic cells, the cells of bacteria and archaea have surface-to-volume ratios, causing nutrient exchange and growth rates.
Compared to most eukaryotic cells, the cells of bacteria and archaea have higher surface-to-volume ratios, causing higher nutrient exchange and growth rates.
Eukaryotic cells are those that have well developed nucleus and also have all the cell organelles. The organisms possessing the eukaryotic cell may range from unicellular to multicellular to organisms with complete organ systems. The examples are: fungi, protists. plants and animals.
Bacteria are the prokaryotic organisms that have primitive type of nucleus. The nucleus is not surrounded by any membrane and lies openly in the pool of cytoplasm. These are unicellular only. The examples are: E. coli, Salmonella, Bacillus, etc.
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Which example best describes an ecosystem’s resilience following a disturbance?
a. When a wildfire strikes, most of the members of a plant population are burned and killed.
b. When the climate becomes warmer, almost all members of an animal population die off.
c. When the soil becomes saltier, the community is gradually replaced with organisms that can
tolerate a saltier environment
d. When a new predator arrives, a prey population is forced to develop behaviors to protect
themselves.
Ecosystem depicts a relationship of living organisms with its environment. The environment offers resources as well as adaptability to the organisms for their survival. Thus, option c is correct.
What is an ecosystem?Ecosystem forms the fundamental and structural unit of ecology in which living organisms interact with the non-living components. Ecosystem supports the growth and development of organisms by providing optimal resources and the environment.
It shows wide range of diversity in the species and favour their reproduction. There are various factors that affect the ecosystem for example intensity of light, climatic changes, temperature variation, wind, soil etc. Human interventions also disrupt the ecosystem in many ways.
Thus, ecosystem can be considered as a dynamic entity.
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When a rat enters a skinner box, it has to learn to press a lever to get food. At the very beginning of this process, it is rewarded with food when it is in the vicinity of the lever. Then it is rewarded when it touches the lever, and so on. This technique of rewarding successive approximations of a desired behavior is called.
Answer:
If my notes are correct, then this is called "Operant Conditioning".
Explanation:
When viewing the euglena in lab, you should be able to positively identify the _________ and __________.
When viewing the euglena in lab, you should be able to positively identify the chloroplast and stigma.
Chloroplast is the cell organelle present in photosynthesizing organisms. These organisms are: plants, some bacteria and some fungi. It is a double membranous organelle that consists of the green colored pigment called chlorophyll.
Stigma is a photoreceptive organelle in the euglena present at the base of the reservoir. It is also called the red eyespot. The role of stigma is to focus the light upon the paraflagellar body. This helps the euglena to perform phototaxis, a phenomenon of movement of the body in response to light.
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Based on their observations, what should the researchers do to further clarify how the availability of the protein outside the cells affects the rate of endocytosis of the protein?.
Based on the observation that altering the protein concentration changes the protein's availability outside the cells, the scientists should increase the concentration of the protein in the cell’s external environment.
The rate of endocytosis is determined by incubating the cells with various concentration of the protein. Endocytosis is affected by concentration and temperature. Thus, incubation and protein concentration rise alter the rate of endocytosis.
Endocytosis is the biological mechanism through which chemicals enter the cell. The substance to be internalized is surrounded by a cell membrane region, which buds off inside the cell to create a vesicle holding the ingested material. Examples of endocytosis includes pinocytosis and phagocytosis.
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I need help for this assignment
In accordance with Newton's third law, whenever objects A and B come into contact, they exert forces on one another. A downward force is applied to the chair by your body while an upward force is applied to your body by the chair while you are seated. A force on the chair and a force on your body are created as a result of this contact.
In accordance with Newton's third law of motion, these two forces are referred to as action and reaction forces. The formal formulation of Newton's third law is: There is an equal and opposite reaction to every action. The answers for Newton's third law are listed below.
1. Laws of motion.
2. Fall
3. 9.8 m/s²
4. Free fall
5. Weightlessness
6. Equals
7. Velocity
8. Terminal velocity
9. Satellites
10. Air resistance
11. Decelerate
12. Straight line
13. Momentum
14. Continues
15. Accelerate
16. Conservation of momentum
17. Momentum.
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Which change resulted from the heating of the planets as they formed?
O Their masses increased.
O They lost most of their radioactive isotopes.
O Their structures differentiated into distinct layers.
O They started to revolve around the Sun.
The change that resulted from the heating of the planets as they formed are the structures differentiated into distinct layers.
What is a simple explanation of the Earth's creation?Around 4.5 billion years ago, when the solar system was still in its current form, gravity dragged spinning gas and dust in, creating Earth, the third planet from the Sun. Earth has a central core, a rocky mantle, and a solid crust, just like its sister terrestrial planets.
What elements molded our solar system?First of all, gravity is what pulls creatures to the surface of the Earth, keeps the planets in their orbits around the Sun, and is what creates planets, stars, and galaxies. Second, electromagnetic forces control how matter produces electricity and magnetism and reacts to them.
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Choose the best description for prokaryotic cell.
A) has a nucleus; found in multicellular organisms
B) has no nucleus; found in unicellular organisms
C) has no nucleus; found in multicellular organisms
D) has a nucleus; found in unicellular organisms
Hi
Answer:
B) has no nucleus; found in unicellular organisms
Explanation:
Prokaryotes, such as bacteria, have a single cell without a nucleus and lack organelles, so prokaryotic cells don't have a nucleus and lack most organelles that would usually be found in eukaryotes.
Therefore, the answer is B) has no nucleus; found in unicellular organisms.
Why should you vent the separatory funnel periodically when preforming an extraction involving organic solvents?.
Should you vent the mixing increases the evaporation of volatile organic solvents creating pressure in the closed space of a separatory funnel.
A separatory funnel needs to be vented to make sure that no gas buildup could unintentionally push the liquid or stopper out of the funnel. The separatory funnel should be turned gently while holding the stopper so the pointed end points upward and away from any persons or significant laboratory apparatus.To protect the analyst from solvent vapour exposure, the separatory funnel needs to be vented into a hood. 7.6 At least 10 minutes should pass while the organic layer separates from the aqueous phase.Everyone uses organic solvents in the majority of their daily activities, from the application of disinfectants to the elimination of challenging grease stains.To learn more about separatory funnel.
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If the mitochondria and chloroplasts in eukaryotic cells resulted from endosymbiosis between various prokaryotes, what features should these organelles have?.
Answer: A plasma, membrane, DNA and ribosomes
Explanation:
Many studies that cannot ethically be conducted as experiments with typical human participants ________. group of answer choices are not possible to test with em
Many studies that cannot ethically be conducted as experiments with typical human participants are possible to test with animal studies.
What is Experiment?This is referred to as a procedure which is used to support or refute a hypothesis and it is also done by other peers in other to ascertain the authenticity of a law or principle.
They are used in medicine to test the efficacy of drugs during production so as to ensure that is very potent. It is also tested to ensure it is safe for consumption and the necessary side effects are studied before they are put in the market.
There are some experiments which can't be done with the use of humans because of ethical and health reasons which is the reason why animals have been used as a form of alternatives because of the identical body system they have with humans.
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What happens to these cells as they get closer to the surface?
Answer:
The other on eis correct
Explanation:
Epinephrine inhibits salivary gland activity and muscle cell contraction in the airways, yet stimulates glycogen release in muscle cells and heart muscle cell contraction. How could one hormone have opposing effects on different organs?.
Epinephrine inhibits salivary gland activity and muscle cell contraction in the airways, yet stimulates glycogen release in muscle cells and heart muscle cell contraction. One hormone could have opposing effects on different organs as e. cells in the different tissues would have epinephrine receptors coupled to different signaling pathways.
It is through the cell signaling pathway that a hormone is able to cause a cell to cause an action. The activity of a cell that is performed under the influence of a hormone depends on cell signaling.
A hormone might cause two opposing actions for different cell types depending on how the cell perceives the hormone through its receptors. As muscle cells require glycogen hence epinephrine couples with receptors that promote this activity in muscle cells through cell signaling. However, it inhibits this activity in the salivary gland due to the coupling with a receptor of salivary gland cells that inhibit this pathway.
The activity of a hormone through cell signaling helps the cell to complete its specialized functions.
Although a part of your question is missing, you might be referring to this question:
Epinephrine inhibits salivary gland activity and muscle cell contraction in the airways, yet stimulates glycogen release in muscle cells and heart muscle cell contraction. How could one hormone have opposing effects on different organs?
a. Cells in the tissues that are suppressed do not express an epinephrine receptor.
b. Cells in responsive tissues have signal transduction pathways.
c. Only responsive tissues are exposed to the epinephrine in the blood stream.
d. Cells in tissues that are not responsive contain enzymes that break down epinephrine when it enters the cell.
e. Cells in the different tissues would have epinephrine receptors coupled to different signaling pathways.
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The synthesis of sugar molecules through the process of photosynthesis requires energy absorbed from sunlight. Bearing this in mind, what kind of reaction is photosynthesis?.
Answer:
The synthesis of sugar molecules through the process of photosynthesis requires energy absorbed from sunlight. Bearing this in mind, what kind of reaction is photosynthesis? A particular chemical reaction is exergonic.
What is Photosynthesis?
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Have a great day! :)
The synthesis of sugar molecules through photosynthesis requires energy to be absorbed from the sunlight. Bearing this in mind, photosynthesis is an exergonic chemical reaction.
What is Photosynthesis?Photosynthesis is the process of formation of sugars in the chloroplast of plant cells. The synthesis requires energy which is absorbed from the sunlight. This sunlight is trapped in the chlorophyll pigment of plant cells. This energy converts carbon dioxide and water into sugars.
Photosynthesis is an exergonic reaction as this reaction releases free energy in the form of sugars (carbohydrates) in the process of the reaction. In exergonic reactions, energy is produced hence the reaction occurs spontaneously. The reactants does not require any energy to react and form product.
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Which measurement is the amount of energy required by the body to maintain a nonactive but alert state?
The measurement of energy consumption while a person is awake, seated, and inactive is known as resting metabolism or resting energy expenditure. The amount of energy the body needs each unit of time to stay alert yet not moving.
What is resting metabolism/Resting Energy?Any increase in resting energy expenditure is crucial to your weight loss efforts because it makes up 60% to 75% of the calories you burn each day.
Walking quickly for two kilometers or riding a bike uphill are examples of intense activities that might boost your metabolism.
Additionally, different body types have varied amounts of muscle and fat, which affects how much energy they require.
Therefore, calories measurement is the amount of energy required by the body to maintain a nonactive but alert state.
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quizlet cells may frequently find themselves in an environment with very low extracellular concentrations of substances needed in higher amounts inside the cell. to obtain these needed items, such cells would be most likely to engage in
Cells may frequently find themselves in an environment with very low extracellular concentrations of substances needed in higher amounts inside the cell. To obtain these needed items, such cells would be most likely to engage in active transport.
A cell is the most basic and fundamental unit of life. It is the building block of all the organisms. Cells can be of two types: prokaryotic and eukaryotic. A prokaryotic is the primitive type of cell with no true nucleus. Whereas, eukaryotic is the cell with true nucleus and cell organelles.
Active transport is the type where substances cross the plasma membrane against their concentration gradient. This means they travel from the region of low concentration to the higher one. For this they require energy and hence the name active transport.
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Animals that begin life from an egg will start growing from:
a fertilized egg cell
a single egg cell
a single cell
a sperm cell
ANSWER ASAP NEED THIS
Answer: I believe it´s A. hope this helps
Explanation:
Mutations cause changes in _____.
Multiple choice question.
cross out
A)
elements
cross out
B)
proteins
cross out
C)
compounds
cross out
D)
essential nutrients