I need help please !!!

es la A

Hace aproximadamente 250 millones de años ocurrió la extinción masiva del Pérmico-Triásico, un evento en el cual murieron hasta el 96 por ciento de las especies marinas y un porcentaje similar de las terrestres. Cerca de tres millones de años después se produjo la separación, a partir de un ancestro en común, de los linajes que con el tiempo darían origen a las aves y los cocodrilos. El grupo que incluye tanto a cocodrilos como aves se lo denomina Archosauria, que significa ‘reptiles dominantes’.

espero y te ayude

Stress fractures result from repetitive loading on the bones. The repetitive loading may be from activities like running or jumping.

They can also result from overuse injuries. In general, stress fractures are commonly associated with sports and exercise, especially high-impact activities such as running, basketball, or tennis. Stress fractures are small cracks that occur in the bone. They usually develop in weight-bearing bones, particularly in the lower leg and foot, because of the repetitive application of force, such as running or jumping. They can also develop in other bones.

A stress fracture may not cause immediate pain, but it can lead to serious complications if left untreated. Therefore, people who participate in activities that require repetitive movements of the feet, legs, or arms are at the most significant risk of getting a stress fracture.

To know more about bones visit:-

https://brainly.com/question/29526822

#SPJ11

Complex carbohydrates are macromolecules composed of long chains of simple sugar molecules, such as glucose, fructose, and galactose. These simple sugar molecules can be linked together in different ways to form complex carbohydrates, which can have a variety of functions in the body, including energy storage and structural support.

One example of a complex carbohydrate is starch, which is a common energy source in many plants. Starch is made up of long chains of glucose molecules that are linked together in a specific way that allows them to be easily broken down by enzymes in the body. Another example of a complex carbohydrate is cellulose, which is a major component of plant cell walls. Cellulose is also composed of long chains of glucose molecules, but these molecules are linked together in a different way than in starch, making it more difficult for enzymes to break down.

Learn more about carbohydrates: https://brainly.com/question/20290845

#SPJ11

Answer:

mitochondria and Golgi body

When algae are incubated in the light, they preform both photosynthesis and cellular respiration.

Photosynthesis is the process by which algae use energy from the sun, carbon dioxide, and water to create energy-rich molecules such as glucose and oxygen.

During this process, light energy is converted into chemical energy, which is then used by the cells of the algae to create the molecules they need for growth and development.

In contrast, when algae are incubated in the dark, they are unable to perform photosynthesis since the light energy needed for the process is not available. In this case, the algae rely solely on cellular respiration to generate the energy they need to survive.

During cellular respiration, the algae break down stored molecules such as glucose to generate energy. This energy is then used to power the cell’s activities, allowing the algae to continue to grow and develop even in the absence of light.

Know more about cellular respiration here

https://brainly.com/question/13721588#

#SPJ11

Answer:

the thoracic duct.

Explanation:

Lymph from the left arm returns to the heart through the thoracic duct.

Hope this helps!

The probability of the couple's offspring having hemophilia is 25%.

Hemophilia is an X-linked recessive disorder, which means that the gene responsible for the disorder is located on the X chromosome. Females have two X chromosomes, while males have one X and one Y chromosome. If a female inherits one normal X chromosome and one X chromosome with the hemophilia gene, she is a carrier of the disorder but does not have symptoms.

If a male inherits an X chromosome with the hemophilia gene, he will have the disorder. In this case, both the male parents of each partner have hemophilia, meaning that each partner has a 50% chance of being a carrier of the disorder. When they have children, there is a 25% chance that both parents will pass on the X chromosome with the hemophilia gene, resulting in a male child with hemophilia.

To know more about hemophilia, here

brainly.com/question/18916729

#SPJ4

--The complete question is, A healthy couple consisting of a woman and a man are concerned about having children, as both the male parents of each have hemophilia. What is the probability that their offspring will have hemophilia? Represent this pairing with their percentages.--

In non-cardiogenic pulmonary edema, the protein content of the edema fluid is typically higher than in cardiogenic pulmonary edema. This is because non-cardiogenic pulmonary edema is caused by an injury to the lungs or an underlying disease process, rather than a heart-related issue.

The protein content of edema fluid in non-cardiogenic pulmonary edema can vary depending on the underlying cause of the condition. For example, in cases of acute respiratory distress syndrome (ARDS), the protein content of edema fluid can be very high due to the increased permeability of the lung capillaries.

Other conditions that can cause non-cardiogenic pulmonary edema and increase protein content in the edema fluid include pneumonia, inhalation of toxic substances, and near-drowning. In these cases, the edema fluid may also contain other substances such as inflammatory cells or microorganisms.

Monitoring protein content in edema fluid is an important diagnostic tool in evaluating the severity of non-cardiogenic pulmonary edema and determining the most appropriate treatment plan. In some cases, a bronchoalveolar lavage (BAL) procedure may be performed to obtain a sample of the edema fluid for analysis.

Know more about Non-cardiogenic pulmonary edema here :

https://brainly.com/question/9853902

#SPJ11

Answer:

C. Producers would have less material for making food.

Explanation:

An ecosystem can be defined as the natural living habitats of both living and non-living organisms, in which they interact with one another. Essential services such as plant pollination, water purification, nutrient cycling etc that are being provided by the ecosystem are really very vital, important and useful for the sustenance of life, both for humans and enhances social welfare.

A list of the types of organisms in an eco pyramid are;

I. Producers: these are autotrophs or self-feeders such as plants.

II. Primary consumers: these are herbivores that typically feed on plants such as a goat or deer.

III. Secondary consumers: these consists of carnivores that typically feed or eat flesh such as lion, tiger, cheetah, etc.

IV. Tertiary consumers: these are higher predators such as humans that aren't normally fed on by other organisms in the ecosystem.

In Biology, producers are the living organisms that are capable of manufacturing their own food and as such can provide energy or food for the other living organisms (consumers) in a food chain. Thus, producers are mainly known as the foundation of a food chain and are at the top.

A producer gets energy from the sun and converts it into food. The cells found in producers are capable of converting the energy received directly from the sun into food through a process generally referred to as photosynthesis, converting carbon dioxide from the air, water from the soil, minerals and energy from the sun into organic nutrients.

Hence, if the amount of atmospheric carbon dioxide were decreased, the most direct effect on the ecosystem is that producers would have less material for making food.

The point on a two-dimensional plane from which blood drops in an impact pattern originated is called the point of origin.

In forensic science, analyzing bloodstain patterns can provide valuable information about the nature of a crime and the events that occurred at a crime scene. By examining the size, shape, and distribution of blood droplets, investigators can determine the direction of blood flow, the angle of impact, and the location of the point of origin. This information can be used to reconstruct the events that led to the bloodshed and provide evidence to support or refute witness statements or suspects' alibis. Overall, the analysis of bloodstain patterns is an important tool in forensic investigations and can provide critical evidence in criminal trials.

To learn more about  point of origin refer to:

brainly.com/question/16718122

#SPJ4

Answer:

The correct answer is - Observations generate a scientific question, leading to a hypothesis, which can be tested through an experiment.

Explanation:

In any scientific knowledge development process, scientists need to follow the scientific process in a particular sequence that helps in developing and testing a hypothesis.

The sequence has:

observation: Observation requires you to pay attention to occurrences around

Forming question: on the basis of observation form a question about why that occurrence happens.

Hypothesis formation: The hypothesis is your initial prediction on why that happens.

Experiment: The experiment is being done in order to collect data and analysis so you can test your hypothesis

Answer:

Its b

Ur welcmom

If the amount of fertilizer applied to plants is increased, then plant growth will increase.

Since out here the independent variable is the variable that's being controlled or changed on reason by the experimenter, It can moreover be thought of as the cause is the fertilizer and the dependent variable is which is the one dependent on the independent variable is the growth of the plant. Here the hypothesis for an observable phenomenon is a proposed explanation or a theory to be utilized in science, one must be able to test it within the frame of a test.  A logical examination is planned to test this hypothesis. Here the Hypothesis is that  If the amount of fertilizer applied to plants is increased, then plant growth  will increase.

To know more about the Hypothesis refer to the link https://brainly.com/question/17173491?referrer=searchResults.

#SPJ9

Fats serve as storage of energy, phospholipids are the main component of cell membranes, waxes can provide a physical barrier, and steroids are hormones.

Lipids represent a broad category of biomolecules composed of fats, phospholipids, steroids, etc.

Fats provide high-energy bonds whose breakdown releases energy during exothermic reactions.

Phospholipids are the main component of cellular membranes by forming a bilayer that separates the cell from the surrounding environment.

Steroids are lipids that serve as chemical messengers, i.e., hormones, which transmit signals through the body (e.g., cholesterol).

Waxes provide a physical barrier that blocks the entry of pathogenic microorganisms (e.g., bacteria) into the body.

In conclusion, fats serve as storage of energy, phospholipids are the main component of cell membranes, waxes can provide a physical barrier, and steroids are hormones.

Learn more about lipids here:

https://brainly.com/question/17254540

#SPJ1

Answer:

Answer:it helps in a lot of ways

Answer:it helps in a lot of waysExplanation:

Answer:it helps in a lot of waysExplanation:for instance, the enzyme in the mouth that act on carbohydrates called tyalin can only have an effect on the food particles when it is chopped by the teeth into smaller pieces

Answer:

Carbon dioxide (CO2) is the primary greenhouse gas emitted through human activities.

Answer:

subsistence farming

Explanation:

subsistence farming. agriculture that produces just enough to feed the farmer's family with little left over to sell.

The population of beetles in the next three generations, considering the carrying capacity, is y1 = 130 beetles, y2 = 130 beetles, and y3 = 130 beetles.

The population of beetles can be calculated using the formula: y = y0 * (1 + r)^n, where y is the population at a given generation, y0 is the initial population, r is the intrinsic growth rate (expressed as a decimal), and n is the number of generations.

Given that the initial population (y0) is 60 beetles and the intrinsic growth rate (r) is 150% (or 1.5), we can calculate the population for the next three generations.

For the first generation (y1), we substitute y0 = 60, r = 1.5, and n = 1 into the formula: y1 = 60 * (1 + 1.5)^1 = 60 * 2.5 = 150 beetles.

For the second generation (y2), we substitute y0 = 60, r = 1.5, and n = 2 into the formula: y2 = 60 * (1 + 1.5)^2 = 60 * 6.25 = 375 beetles.

For the third generation (y3), we substitute y0 = 60, r = 1.5, and n = 3 into the formula: y3 = 60 * (1 + 1.5)^3 = 60 * 15.625 = 937.5 beetles.

However, since the environment can only sustain a maximum population of 130 beetles, we need to consider the carrying capacity.

To find the population at each generation while considering the carrying capacity, we compare the calculated population with the carrying capacity and use the smaller value as the population.

For y1, the population is 150 beetles, which exceeds the carrying capacity of 130 beetles. Therefore, y1 = 130 beetles.

For y2, the calculated population is 375 beetles, which is also above the carrying capacity. Thus, y2 = 130 beetles.

For y3, the calculated population is 937.5 beetles, which is still above the carrying capacity. Therefore, y3 = 130 beetles.

Learn more about population of beetles here:-

https://brainly.com/question/29406262

#SPJ11

A monopolist can set prices and quantities without fear of being undercut by competitors because of barriers to entry.

Barriers to entry are the factors that prevent or discourage new firms from entering a market and competing with an existing monopolist. These barriers can include legal restrictions, high capital requirements, economies of scale, exclusive access to resources, patents, and established brand loyalty, among others.

In a monopoly, the absence of competition allows the monopolist to have significant control over pricing and quantities. Without the threat of new entrants, the monopolist can exercise market power and charge higher prices or limit output to maximize its profits. Since there are no competing firms to undercut prices or offer alternative choices, the monopolist can set prices and quantities according to its own discretion.

Barriers to entry protect the monopolist's market position and prevent the emergence of effective competition, enabling them to operate with less pressure from external market forces. As a result, monopolists have more control and can exert dominance in the market, leading to potentially higher prices and reduced consumer welfare.

To learn more about monopoly, here

https://brainly.com/question/31918762

#SPJ4

Answer:

Oxycodone

Prednisone

Acetaminophen

Morphine

Explanation:

Answer:

Barbiturates

Benzodiazepines

Codeine

Morphine

Answer:

b. 2

Explanation:

Gene's come in different varieties called alleles

Answer:

c. test and evaluate a solution

In a pyramid of numbers, the largest number of organisms would typically be found at the **lowest trophic level**.

A pyramid of numbers represents the number of organisms at each trophic level in an ecosystem. The base of the pyramid represents the primary producers, such as plants or algae, which are capable of capturing energy from the sun through photosynthesis. Since primary producers form the foundation of the food chain, they tend to have the highest population numbers. As energy moves up the trophic levels, the number of organisms generally decreases due to energy loss and reduced availability of resources. Consequently, higher trophic levels, such as primary consumers (herbivores), secondary consumers (carnivores), and tertiary consumers (top carnivores), typically have smaller populations compared to the primary producers at the base of the pyramid.

Learn more about photosynthesis here :

https://brainly.com/question/29764662

#SPJ11

Answer: Mitosis. Mitosis ends with two complete cells. Meiosis ends with either four sperm cells or a single egg cell (and the other 3/4 of the material dies and is used as food by what is left).

So growing new cells to repair tissue in the body is mitosis, not an example of meiosis.

Explanation:

Muscle cells sometimes switch to lactic acid fermentation to generate ATP when there is insufficient oxygen available for aerobic respiration.

Muscle cells require a constant supply of ATP to fuel muscle contractions. During intense exercise or situations where oxygen supply is limited, such as during short bursts of activity or when oxygen demand exceeds supply, muscle cells may switch to lactic acid fermentation as an alternative pathway to generate ATP. Lactic acid fermentation occurs in the cytoplasm and involves the conversion of glucose to lactate, resulting in the production of ATP without the need for oxygen.

While this process is less efficient in terms of ATP production compared to aerobic respiration, it allows muscle cells to continue generating ATP rapidly to sustain muscle contractions. The accumulation of lactic acid can lead to muscle fatigue and discomfort, but it provides a temporary energy source when oxygen availability is limited.

Learn more about Muscle cells here:

https://brainly.com/question/30972407

#SPJ11

Muscle cells switch to lactic acid fermentation to generate ATP when there is a lack of oxygen, such as during intense exercise. Lactic acid fermentation allows the cells to continue producing ATP without oxygen, but it is less efficient than aerobic respiration. Once oxygen becomes available again, muscle cells switch back to aerobic respiration.

Muscle cells sometimes switch to lactic acid fermentation to generate ATP when there is a lack of oxygen. This occurs during intense exercise when the demand for ATP exceeds the rate at which oxygen can be supplied to the cells. Lactic acid fermentation allows muscle cells to continue generating ATP without oxygen, but it produces lactic acid as a byproduct.

During lactic acid fermentation, glucose is converted into lactic acid, and a small amount of ATP is produced. This process is less efficient than aerobic respiration, which uses oxygen to produce more ATP. However, lactic acid fermentation provides a temporary source of energy for muscle cells until oxygen becomes available again.

It is important to note that lactic acid fermentation is not sustainable for long periods of time, as lactic acid can build up and cause muscle fatigue and cramping. Once exercise intensity decreases and oxygen becomes available, muscle cells switch back to aerobic respiration for ATP production.

https://brainly.com/question/32815866

#SPJ2

50% water and 50% vinager

Answer:

between individuals

Explanation:

Given in paragraph

Scale of the model: 1:10,000. To find the scale of the model, we need to compare the size of the model to the actual size of the red blood cell. Given that the diameter of the red blood cell is 0.008mm and the diameter of the model is 80mm, we can calculate the scale by dividing the diameter of the model by the diameter of the actual cell.

Scale = Model diameter / Actual cell diameter

Substituting the given values:

Scale = 80mm / 0.008mm

Simplifying the expression:

Scale = 10,000

Therefore, the scale of the model is 1:10,000.

1. Identify the diameter of the red blood cell: 0.008mm.

2. Identify the diameter of the model: 80mm.

3. Use the formula Scale = Model diameter / Actual cell diameter.

4. Substitute the values into the formula: Scale = 80mm / 0.008mm.

5. Simplify the expression to find the scale: Scale = 10,000.

6. The scale of the model is 1:10,000, indicating that the model is 10,000 times larger than the actual red blood cell.

For more such questions on scale, click on:

https://brainly.com/question/28743660

#SPJ8