Which of the following is NOT true about the bee waggle dance.
It is primarily a visual form of behavior as all dances are.
Bees can use the sun as a compass since they have an internal biological clock that allows them to compensate for the movement of the sun.
is a tactile form of behavior since it is done in a dark hive and the other beestouch the dancing bee to get information.
The angle the bee moves to gravity communicates the angel a bee must fly compared to the position of the sun to find the food source.

Antigens are molecules that can trigger an immune response in the body. They can be found in many different sources, including venoms, toxins, and bacterial cell walls. Most antigens have a molecular weight above 10,000 amu, with many exceeding 100,000 amu.

The regions of antigens that trigger immune responses are called epitopes, and they are typically nonself-antigens, meaning they are not present in the body's own tissues. However, some antigens can be self-antigens, which are found in the body's own tissues but can still trigger an immune response under certain conditions. The uniqueness of antigen molecules helps prevent the immune system from attacking harmless substances, but it also means that some antigens may be difficult to target with vaccines or other therapies. Haptens are small molecules that can bind to larger proteins to create an antigenic complex, and they can also trigger immune responses.

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Answer:

nosexd

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Explanation:

Answer:

558

Explanation:

Cellular respiration occurs when organisms are utilized to remove pollutants from an area because the process of cellular respiration is how organisms convert energy stored in food molecules into usable energy in the form of ATP.

ATP (adenosine triphosphate) is the energy currency of cells. This process is necessary for life because it allows organisms to obtain the energy, they need to carry out essential life processes such as growth, reproduction, and movement. The removal of pollutants from an area requires energy, and organisms use energy in the form of ATP to carry out this process.

During cellular respiration, glucose and other food molecules are broken down to produce ATP. The energy produced during cellular respiration is used to power metabolic processes such as the removal of pollutants. Cellular respiration occurs in all living organisms, including bacteria, plants, and animals.

The process is a vital part of the global carbon cycle because it releases carbon dioxide into the atmosphere. This carbon dioxide can then be used by plants during photosynthesis to produce food molecules.

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Answer:

This is a decomposition reaction, where one compound (H2CO3) breaks down into two or simpler substances (H2O and CO2).

Although bacteria can be used to produce human proteins for therapeutic uses, the disadvantage to using a prokaryotic system is that proteins may not be post-translationally processed correctly.

A protein that is defective or lacking in a certain condition can be replaced with therapeutic proteins. They can also increase the body's production of a helpful protein to lessen the effects of illness or chemotherapy.

Patients with cancer, heart attacks, strokes, cystic fibrosis, diabetes, anaemia, and haemophilia are treated using therapeutic proteins. These proteins are made utilising microbial fermentation in transgenic plants, animals, and cell cultures.

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Answer:

el químico que mas hay en la atmósfera es el nitrógeno. el oxígeno va de segunda lugar

The substance, needed for protein synthesis, that is carried into a leaf from the stem is nitrate. Nitrate is an essential nutrient that plants use to produce amino acids and proteins. It is a part of the nitrogen cycle and is used in chloroplasts to create essential proteins.Option B is correct

The process of protein synthesis takes place in chloroplasts of the leaves of plants where nitrogen, along with other elements, is utilized to produce proteins. Nitrogen, in the form of nitrate, is an essential element required by the plant for the synthesis of amino acids and proteins.

Plants obtain nitrate through the soil from the water they absorb through their roots. It is transported from the roots to the leaves through the xylem vessels, which form a continuous pipeline from the roots to the stem and leaves of the plant. The process of protein synthesis is important for the growth and development of plants.

It is essential for the production of enzymes, hormones, and structural components such as cell walls and membranes. Nitrate is, therefore, a critical substance for protein synthesis and the growth and development of plants. Option B is correct

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Answer: the correct answers would be :  

A : Sympatric speciation

and

B : Allopatric speciation

Answer:

Lipids are composed of carbon, hydrogen and oxygen atoms, and in some cases contain phosphorus, nitrogen, sulfur and other elements.

Lipids are primarily composed of carbon, hydrogen, and oxygen. They are also known as fats, oils, and waxes. Lipids are essential for the structure and function of cells, and they provide energy for the body.

Lipids are important for the body in a number of ways. They help to:

Store energy: Lipids are a concentrated form of energy, and they can provide the body with energy when it is needed.

Form cell membranes: Lipids are the main component of cell membranes, which are the outer layer of cells. Cell membranes protect cells and help to control what enters and leaves the cells.

Produce hormones: Lipids are used to produce some hormones, such as testosterone and estrogen.

Absorb fat-soluble vitamins: Lipids help to absorb fat-soluble vitamins, such as vitamins A, D, E, and K.

Lipids are an essential part of the diet, and they should be included in a balanced diet. However, it is important to eat healthy fats, such as those found in avocados, nuts, and seeds. These fats are good for the heart and can help to reduce the risk of heart disease.

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The bleeding ceases after massaging the uterine fundus and enabling the mother to breastfeed because these movements increase oxytocin production and produce a uterine contraction. In response to this query, choice B is appropriate.

Vaginal postpartum hemorrhage, also known as lochia, is the term for the discharge of blood and mucus that starts to occur after birth. Bleeding after delivery is normal and common: All the extra blood, mucus, and tissue that accumulated over your pregnancy are being eliminated by your body. Therefore, whether you gave birth naturally or via C-section, you will experience postpartum bleeding.

More frequently than not, lochia is heavier and lasts longer than a menstrual period. It also includes substances that are absent from a typical menstrual period, such as uterine mucus and tissue, primarily from the cervix. the region to which the placenta was connected.

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None of the options a, b, c, or d fully explains the process of inflammation. However, option "e" is the correct answer as all of the listed options are part of the process of inflammation.

During inflammation, several changes occur in the affected area, including increased capillary permeability, which allows immune cells and fluid to enter the area, and the release of chemical mediators such as prostaglandins and histamine. Prostaglandins can both promote and reduce inflammation, depending on the specific circumstances, while histamine can cause vasodilation (widening of blood vessels), leading to increased blood flow to the area.

These changes are intended to help the body fight infection or repair damaged tissue, but they can also cause pain, swelling, and redness in the affected area. Therefore, inflammation is a complex and multi-faceted process that involves a variety of cellular and molecular mechanisms.

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If the water hyacinth population has an r-value of 0, then the population size will not change.

The invasion of water hyacinth in aquatic ecosystems occurs because it requires a large enough supply of oxygen from the waters it inhabits for the evapotranspiration process (evaporation process by aquatic plants). This plant absorbs a lot of oxygen and lowers the water oxygen levels needed by fish.

The abundance of water hyacinth can block the supply of oxygen to the bottom, prevent the penetration of sunlight which is very necessary for life, and can cause siltation of water bodies. This incident is caused by agricultural waste such as the excessive use of artificial fertilizers, pesticides, and herbicides.

The r value for the water hyacinth population is:

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The total surface area of a human lung is = 1,120m²

An alveoli is part of the lungs in the respiratory system where the exchange of gases between the blood and the tissue takes place.

The average number of alveoli in each human lung = 280 million

The average surface area of 1 million alveoli = 0.25 m²

If 1 million = 0.25 m²

280 million = X m²

Make X m² the subject of formula,

X m²= 280 × 0.25/1

x m² = 1,120m²

Therefore, the total surface area of a human lung is = 1,120m²

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Answer:

A study out of Japan found that soil creep helps build up soil in places where landslides could occur. As more and more soil builds up at these points, the more tension there is. These points of tension eventually release, causing debris flows and landslides.Sep 9, 2022

Explanation:

The stylet starts to swell with phloem sap. The transit rate may then be calculated by looking for signs of the isotope in the droplet of phloem sap.

Aphids can be positioned at various points along the plant stem to demonstrate movement across a range of distances. Aphids have a projecting mouthpiece, or "stylet," that they use to puncture the plant's sieve tube and draw sap from it.

Digestive enzymes help the stylet enter the sieve tube by softening the tissue layers between them. Aphids use mouthparts known as stylets to pierce plant tissues and reach the phloem. Phloem will continue to flow out of the stylet if the aphid is anesthetized and the stylet is severed, allowing for the analysis of the sap flow rate.

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The circulatory system, also known as the cardiovascular system, is responsible for transporting oxygen, nutrients, and hormones throughout the body, as well as removing waste products. The circulatory system is responsible for delivering nutrients and removing waste products at the organ level.

At the organ level, the circulatory system works as follows: The heart, a muscular organ, pumps blood through a network of blood vessels, including arteries, veins, and capillaries. Cardiac muscle contracts to generate the force necessary to move the blood throughout the body. As the blood circulates, it delivers nutrients, such as oxygen and glucose, to the body's organs and tissues. Blood cells, specifically red blood cells, play a vital role in carrying these nutrients. The nutrients are then absorbed by the cells and used for various metabolic processes. Additionally, the circulatory system removes waste products, such as carbon dioxide, from the body's cells and transports them to the lungs and kidneys for elimination. In summary, the circulatory system is responsible for delivering nutrients and removing waste products at the organ level.

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18. b

19. c

20. f

21. e

22. d

23. c

24. f

25. a

Answer artificial levees

Explanation:

Aerobic respiration is when sugars are converted to ATP when oxygen is present, and aerobic respiration is performed in the cytoplasm and mitochondria.

Anaerobic respiration is when sugars are converted to ATP when no oxygen is present, and anaerobic respiration is only performed in the cytoplasm.

Answer:

The type of soap should remain the same, but the temperature of the water should change.

Explanation:

According to the observation, question and hypothesis of this investigation, it can be determined that the variable being tested called INDEPENDENT VARIABLE is the temperature of the water while the effect is being measured on the amount of bubbles produced called the DEPENDENT VARIABLE.

The independent variable is the variable that the experimenter changes or manipulates in an experiment. Hence, in this case, the temperature of the water should change. On the other hand, the variable that should remain the same or constant is called CONSTANT VARIABLE. In this experiment, the type of soap used should remain the same so as not to affect the outcome of the experiment.

Answer:

its D

Explanation:

Answer:

Explanation:

To determine whether the population is in Hardy-Weinberg equilibrium (HWE) for the Ab locus, we need to compare the observed genotype frequencies with the expected frequencies under HWE assumptions. The expected genotype frequencies under HWE can be calculated using the allele frequencies observed in the population.

Let's assume that the Ab locus has two alleles, A and B. We'll denote the allele frequencies as p and q, respectively, and the expected genotype frequencies under HWE as p^2 (AA), 2pq (AB), and q^2 (BB).

Given the genotyping data, we can analyze the observed genotype frequencies and calculate the expected frequencies. Let's say we obtained the following counts:

AA: 45 individuals

AB: 60 individuals

BB: 15 individuals

To determine the allele frequencies, we can calculate the allele counts. Let's denote the frequency of allele A as p and allele B as q.

Count(A) = 2 * AA + AB = 2 * 45 + 60 = 150

Count(B) = 2 * BB + AB = 2 * 15 + 60 = 90

Total count = Count(A) + Count(B) = 150 + 90 = 240

p = Count(A) / Total count = 150 / 240 = 0.625

q = Count(B) / Total count = 90 / 240 = 0.375

Now, we can calculate the expected genotype frequencies under HWE:

p^2 = (0.625)^2 = 0.390625

2pq = 2 * 0.625 * 0.375 = 0.46875

q^2 = (0.375)^2 = 0.140625

To determine whether the population is in HWE, we can perform a chi-square test using the observed and expected genotype frequencies.

Observed:

AA: 45 individuals

AB: 60 individuals

BB: 15 individuals

Expected (calculated above):

AA: (0.390625) * 120 = 46.875

AB: (0.46875) * 120 = 56.25

BB: (0.140625) * 120 = 16.875

To conduct the chi-square test, we compare the observed and expected frequencies for each genotype and calculate the chi-square statistic:

Chi-square = Σ [(Observed - Expected)^2 / Expected]

Calculating for each genotype:

AA: [(45 - 46.875)^2 / 46.875] = 0.07602

AB: [(60 - 56.25)^2 / 56.25] = 0.26765

BB: [(15 - 16.875)^2 / 16.875] = 0.10741

Summing the values:

Chi-square = 0.07602 + 0.26765 + 0.10741 = 0.45108

Degrees of freedom (df) = Number of genotypes - 1 = 3 - 1 = 2

To determine whether the population is in HWE, we compare the chi-square statistic with the critical value from the chi-square distribution table for the given significance level and degrees of freedom. If the calculated chi-square value exceeds the critical value, we reject the null hypothesis of HWE.

Alternatively, we can use statistical software or an online chi-square calculator to obtain the p-value associated with the calculated chi-square value. If the p-value is below the chosen significance level (e.g., 0.05), we reject the null hypothesis.

Further analysis:

If the population is not in HWE, it suggests that there are deviations from the expected genotype frequencies. The deviations could indicate factors such as non-random mating, genetic drift, selection, mutation, or migration.

To explore the deviations further and understand the factors contributing to the population's deviation from HWE, additional investigations can be conducted. These might include:

1.  Investigating mating patterns: Assessing whether individuals are preferentially mating with individuals of certain genotypes or from specific breeding units.

2.  Genetic drift: Analyzing the population size and potential bottlenecks or founder effects that could contribute to deviations from HWE.

3.  Selection: Examining whether natural selection is acting on the Ab locus, leading to deviations from expected genotype frequencies.

4.  Mutation and migration: Assessing the potential impact of new mutations or migration from other populations on the observed genotype frequencies.

By conducting these additional investigations, we can gain a better understanding of the factors influencing the population's deviation from HWE and further test the original hypothesis.

Answer:

2 and 3

Explanation:

no explanation please

The main factor that determines the stages a star will follow after the main sequence is the star's mass or size.

An astronomical object referred to as a star is made up of a bright plasma spheroid that is held together by gravity.

But if the body has sufficient mass, the collapsing gas and mud burns hotter, eventually reaching temperatures sufficient to fuse hydrogen into helium. The star activates and becomes a main sequence star, powered by hydrogen fusion.

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Answer:

involuntary muscle

Explanation:

Involuntary muscles are those that cannot be controlled by will or consciousness and are frequently associated with organs that contract and relax slowly and regularly. Because there are no striations when viewed under a microscope, involuntary muscles are also known as smooth muscles or non-striated muscles.