Consider the interior surface of the human stomach and its secretions, shown in the figure. Why doesn’t gastric juice, composed of hydrochloric acid and a protease called pepsin, digest the cells that line the stomach?.

Answer:

Parasitism

Explanation:

Parasitism is an ecological relationship between two organisms in which one organism benefits while the other organism suffers. It may also be a type of symbiosis.

The majority of microorganisms investigated in medical microbiology are parasitic and prey on human tissue. Parasitic microbes, for instanse, cause cholera, leishmaniasis, and giardia. Any relationship between two or more biological species is referred to as symbiosis. Such relationships are typically long-term and have a significant impact on one or both organisms' fitness. Benefits and physical characteristics distinguish symbiotic relationships. Mutualism, defined as a relationship in which both species benefit, is very common in nature. There are numerous examples of mutualistic bacteria in the abdomen that aid digestion in both humans and animals in microbiology. A commensal relationship is one in which one species benefits while the other is unaffected. Humans have a variety of commensal bacteria in their bodies that do not harm them but are necessary for survival, like when dead skin is consumed by bacteria.

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Mrs. H's respiratory rate will increase and the oxygen concentration in her blood will decrease if she breathes half as deeply but twice as often. This will lead to respiratory distress and may even result in fainting.

Breathing is the exchange of air between the atmosphere and the lungs. This process is critical since it allows the body to take in oxygen and get rid of carbon dioxide. The respiratory rate is the number of breaths taken in a minute. It can be affected by various factors such as exercise, anxiety, and illness. The volume of air inhaled and exhaled during each breath is known as  respiratory ratevolume. When Mrs. H breathes half as deeply but twice as often, her respiratory rate will increase, while the tidal volume will decrease. This leads to respiratory distress since the oxygen concentration in her blood will decrease. As a result, the body may respond by hyperventilating, which can cause fainting if prolonged.

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Answer:

0.6g/cm³

Explanation:

density = mass/volume

density = 30/50 = 0.6g/cm³

The correct answer is "nurture, experience, maturation." These three terms are all related to the development and shaping of an individual's behavior and personality.

Nurture refers to the influence of the environment, including upbringing and socialization, on an individual's development. Experience includes the various events and interactions that a person encounters throughout their life, which can also shape their behavior and personality. Maturation refers to the natural biological processes that occur as an individual grows and develops, which can also have an impact on their behavior and personality.

Therefore, all three of these terms are closely related and belong together in the same category of factors that contribute to human development.

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Answer: C

Explanation:

Answer:

this was sooooo long ago i forgot how to do this

Explanation:

The complementary RNA strand to the DNA sequence CGCCTAAA would be GCGGAUUU.

Option (b) is correct.

To determine the complementary RNA strand, we need to follow the base-pairing rules between DNA and RNA. In RNA, adenine (A) pairs with uracil (U) instead of thymine (T) as in DNA. The base pairing rules are as follows:

Adenine (A) pairs with uracil (U)

Cytosine (C) pairs with guanine (G)

Guanine (G) pairs with cytosine (C)

Thymine (T) pairs with adenine (A) in DNA only

Given the DNA sequence CGCCTAAA, we can pair each nucleotide with its complementary base in RNA:

C pairs with G

G pairs with C

C pairs with G

T (replaced by U in RNA) pairs with A

A pairs with U

A pairs with U

A pairs with U

This gives us the complementary RNA sequence GCGGAUUU, which is option b.

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Based on the mating activity shown, the two amphibians (frogs and toads) on the mating timetable that do not interbreed are bullfrog ad wood frogs.

Interbreeding is the act of breeding or mating between individuals of different species, subspecies, or populations that would not normally interbreed in the wild. This can result in offspring with genetic traits that are a mix of both parents.

Interbreeding can occur naturally, but it can also happen through intentional human intervention, such as in animal breeding or in the creation of hybrid plants.

In some cases, interbreeding can lead to the development of new species or subspecies over time.

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Answer:  Domestic fuels are always cheaper to acquire and renewable.

Explanation:

The most commonly occurring mutation in people with cystic fibrosis, which is a deletion of a single codon, typically results in:

a) a frameshift mutation.

A frameshift mutation occurs when one or more nucleotides are inserted or deleted in the DNA sequence, causing a shift in the reading frame during translation. In the case of a deletion of a single codon, the entire reading frame is affected, leading to changes in the subsequent codons and the resulting polypeptide sequence.

This frameshift mutation can have significant consequences for the structure and function of the protein produced, which in the case of cystic fibrosis, is the cystic fibrosis transmembrane conductance regulator (CFTR) protein.

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Answer:

B) Moisture enters the atmosphere.

Answer:

ok

Explanation:

What is the question. Let see if I can try

Answer:

The energy that is left is then transferred to the top predators. This process is often referred to as a food chain or food web.

The energy from the sun is not just used by plants, but also by animals for movement, growth and other activities. This energy is then passed on to other animals or is used for metabolic processes and is eventually released as heat. This is how energy is transferred through the food web.

Explanation:

The energy that is left is then transferred to the top predators. This process is often referred to as a food chain or food web.

The energy from the sun is not just used by plants, but also by animals for movement, growth and other activities. This energy is then passed on to other animals or is used for metabolic processes and is eventually released as heat. This is how energy is transferred through the food web.

Answer:

Weathering causes the disintegration of rock near the surface of the earth. Plant and animal life, atmosphere and water are the major causes of weathering. Weathering breaks down and loosens the surface minerals of rock so they can be transported away by agents of erosion such as water, wind and ice.

Explanation:

Answer:

1. Support

2. Protection

3. Movement

4. Supply & Storage

Explanation:

1. Support :  It provides a framework to support the organs and tissues of the body.  

2. Protection:  It protects our internal organs.  The skull protects the brain; the thorax (sternum, ribs and spine) protects the heart, lungs and other viscera (organs within the thorax).

3. Movement:  It provides a framework for muscles to attach.  Then when the muscles contract they pull on the bones of the skeleton, which act like levers to create movement.

4. Supply & Storage:  The bones that make up the skeleton are a source of both red blood cells (which transport oxygen) and white blood cells (which fight infection), which are formed within the bone marrow.

Answer:

The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs and stores minerals.

Explanation:

With the advent of industrialization, several trees have been cut at an alarming rate for raw materials and various other purposes. This felling of trees can be regulated by selective cutting, clear-cutting and shelterwood cutting.

Forest fires are one of the common causes of loss of forests. Sometimes the forest land is set on fire to make the land available for commercial purposes. Once cleared, there can be no vegetation. Natural forest fires are also responsible for the destruction of huge forest covers. Latest fire fighting techniques should be adopted to conserve the forest. However, forest fires are an important part of the ecosystem and it helps replenish nutrients in the soil from dead and decaying matter.

More trees should be planted to increase the forest cover. Trees should be selected according to the geographical conditions of a particular region and proper care should be taken during the growth of trees.

Prevention of exploitation of forestry and forest products is necessary for the conservation of forest.

The existing forests should be protected from diseases by spraying chemicals, antibiotics or development of pest-resistant strains of trees.

The nucleosome forms first in the higher-order structures of DNA. It is composed of DNA wrapped around histone proteins, forming a bead-like structure.

The nucleosomes then further condense into a solenoid structure, which consists of stacked nucleosomes forming a helical structure. The loops and double helix structures form later in the process of DNA organization and packaging. So, the  nucleosome is the first higher-order structure to form.
The first higher-order structure that forms is A) Double helix.

1. Double helix: DNA molecules are composed of two strands that wrap around each other, forming a double helix structure. This is the first higher-order structure that forms.
2. Nucleosome: After the double helix is formed, DNA wraps around histone proteins to form nucleosomes.
3. Solenoid: Nucleosomes further coil together to form a solenoid structure.
4. Loops: Solenoids then organize into loops to create higher-order chromatin structures.

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Answer:

The Answer to this question is False.

Explanation:

Answer:

false, it should be only in celsius

Explanation:

Answer:

it's called foot inversion

normally the foot can perform inversion upto 30 degrees...I hope this helps

Answer:

B - D - A - C, that's you answer

if not like that please post  your choices as well.

Explanation:

The tendrils of a plant wrapping around a garden stake is an example of thigmotropism.

Thigmotropism, here the plant grows when it is in touch or contact of the object.

Tendril is a specialized leaf, stem or petiole which binds around the stem in spiral or irregular circles.

This coiling help plant to get maximum sunlight and provide them support.

Tendrils shows thigmotropism, when they come in contact with an object and sends the signal which turn the tendril to coil around the object.

There are 2 types of thigmotropism, positive is shown by tendrils and negative is shown by the roots of plants.

Family Cucurbitaceae shows tendril, shows coiling of plant.

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The correct option is B -Terrestrial insects−−uric acid.

The species that is incompatible with the main sort of nitrogenous waste it excretes is an insect that lives on land. The correct response for terrestrial insects is "uric acid," not "ammonia."

The primary nitrogenous waste excreted by terrestrial insects, such as insects and spiders, is uric acid. Uric acid is a somewhat insoluble waste product that requires less water for excretion in organisms living in dry or terrestrial settings.

Hence option B is correct.

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Answer:

Aftershocks are sometimes just as hazardous as the main quake itself. In fact, aftershocks may be so strong that they're stronger than the main quake. ... While foreshocks occur around the same time of the main quake, aftershocks may not occur until days or weeks later! The point at the Earth's surface directly above the focus is called the epicenter of the earthquake. At the epicenter, the strongest shaking occurs during an earthquake.

Hope this helps, have a great day/night, and stay safe!

Answer:

0.1% of energy

Explanation:

Energy flow: From the whole quantity of energy that reaches the earth's surface, autotroph organisms or producers absorb only 0.1 or 1%.

From the input of solar energy begins a unidirectional energy flow through all the organisms in the ecosystem, from autotrophs to heterotrophs, until it is dissipated in the environment.  

At each trophic level occurs an energy transfer to the next, with only 10% being usable in each of them. This assessment is called "The 10% rule". As a general rule, only about 10% of the energy stored as biomass at one trophic level, per unit time, ends up as biomass at the next trophic level, in the same unit of time.

If wheat transferred 10% of the energy to mice, and of that 10% mice transferred 10% of the energy to hawk, then the percentage of energy transferred from the first trophic level to the third equals 0.1%.

10% (1st TL-2nd TL) / 10% (2nd TL - 3rd TL) = 0.1% (1stTL - 3rd TL)

TL = Trophic level          

Immature B cells express IgM, IgD, CD19, and CD20. Mature B cells express IgD, IgM, CD19, CD20, and CD21.

Complete question should be  What are the surface markers expressed by immature B cells, and what markers do mature B cells express? Where does B cell maturation complete in the secondary lymphoid tissues, and what do immature B cells interact with to receive a signal?

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Answer:

So, assuming the dice are 'fair' (that each of the six numbers has a probability of 1/6 of showing up on each of the dice), there is a probability of 1/36 that all three dice will show the same number.

Explanation:

Niche differentiation refers to the evolution of traits that reduce niche overlap and competition interactions that allow species to occupy their fundamental niche.

This is an important concept in ecology and evolutionary biology as it helps to explain how different species can coexist in the same ecosystem without competing for the same resources.

The degree to which the niches of two species overlap is also a key factor in determining the extent of competition between them. When two species have overlapping niches, they will compete for the same resources, which can lead to one species outcompeting the other or to the evolution of niche differentiation to reduce competition and allow coexistence.

Therefore, niche differentiation is a process that allows different species to use the same resources in different ways, reducing competition and promoting coexistence in the same ecosystem.

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Answer:11 and 16 on edu

Explanation:

Answer:

C for the first question, B for the second

Explanation: