what is imunisition



please help me guys ​

Answer:

D. messenger RNA is used to make proteins

Answer: Yes, they’re so many people doing this. Fake bots all over here are taking over brainly. And it’s always a link that doesn’t work with the same profile picture.

A somatic cell for this organism would possess 60 individual chromosomes. Therefore, the correct answer is d. 60.

If the haploid number of chromosomes for an organism is 30, it means that each gamete (sex cell) of that organism contains 30 individual chromosomes. Gametes are haploid cells, meaning they only have one set of chromosomes.

In contrast, somatic cells are diploid cells, meaning they contain two sets of chromosomes. The diploid number of chromosomes is typically denoted as 2n. Therefore, to determine the number of individual chromosomes in a somatic cell, we multiply the haploid number (n) by 2.

For the given organism with a haploid number of 30 individual chromosomes, a somatic cell would possess:

2n = 2 * 30 = 60 individual chromosomes.

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Answer:

Embedded channels and transport proteins can selectively allow the movement of various substances across a membrane, including ions like potassium and sodium, small polar molecules like water and urea, as well as glucose, amino acids, and various other ions.

Many buttons contain two sizes of vesicles, with the larger ones typically containing neurotransmitters.

Buttons, also known as synaptic boutons, are specialized structures at the ends of neuronal axons. They are responsible for transmitting signals between neurons through chemical signals called neurotransmitters. Within the buttons, some vesicles store and release these neurotransmitters. The vesicles found in buttons come in different sizes. While there can be variations, it is common to find two distinct sizes of vesicles within buttons. The more giant vesicles are typically responsible for storing and releasing neurotransmitters. These neurotransmitters are essential for transmitting signals across the synapse, the junction between two neurons, allowing communication between them. The smaller vesicles, on the other hand, often play a role in recycling and replenishing the supply of neurotransmitters within the button. They are involved in refilling the more giant vesicles with neurotransmitters, ensuring a continuous supply for future signaling. Understanding the composition and functioning of vesicles within buttons is crucial for unraveling the complex mechanisms of neuronal communication and synaptic transmission in the nervous system.

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Answer:

Recombinant DNA is technology scientists developed that made it possible to insert a human gene into the genetic material of a common bacterium. This “recombinant” micro-organism could now produce the protein encoded by the human gene. Scientists build the human insulin gene in the laboratory. Then they remove a loop of bacterial DNA known as a plasmid and insert the human insulin gene into the plasmid. Researchers return the plasmid to the bacteria and put the “recombinant” bacteria in large fermentation tanks. There, the recombinant bacteria use the gene to begin producing human insulin. Scientists harvest the insulin from the bacteria and purify the substance for use as a medicine for people.

Explanation:

The researcher incorrectly measured the amount of sucrose needed to make a 2M solution and made a mistake in the dissolution process.

In this procedure, the researcher made a mistake in calculating the amount of sucrose required to make a 2M solution. The correct calculation would have been 2 moles of sucrose, which weighs 342 g per mole, resulting in a total of 684 grams. However, the researcher correctly measured 1 L of water and poured it into a beaker with a capacity of 2 L. This step was appropriate for preparing the solution.

The mistake occurred when the researcher added the entire 684 g of sucrose to the beaker containing 1 L of water. Since the beaker had a capacity of 2 L, it means that the final volume of the solution would have exceeded 1 L. This error resulted in a higher concentration than intended. To prevent this, the researcher should have added the calculated amount of sucrose to a smaller volume of water, ensuring that the final solution volume would be 1 L after dissolution.

Additionally, the researcher waited for the sucrose to dissolve after adding it to the beaker. While stirring the solution with a magnetic stir bar on a stir plate was appropriate, the waiting time for complete dissolution was not mentioned. The researcher should have continued stirring until the sucrose completely dissolved, ensuring a homogeneous solution.

In summary, the researcher made an error in the calculation of the sucrose amount and did not consider the final volume of the solution. They should have added the calculated amount of sucrose to a smaller volume of water to achieve the desired concentration. Furthermore, the researcher should have ensured the complete dissolution of the sucrose by continuing to stir the solution until it was homogeneous.

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c the path of energy through a food web in a natural community..

hope you will find it good,..

Answer:

Explanation:

The number of organisms near the top of the energy pyramid is usually small, because most of the energy produced is lost due to factors such as exercise and heat. This energy loss occurs multiple times when passing through the pyramid, forcing consumers near the top to require more food. This creates a pyramid with the third consumer at the top and the producer at the bottom.

Answer:

some of thw hear conducrs out

Explanation:

aaa

Answer: Plant cells

Explanation:

Answer:

plant cells

Explanation:

Hydrophobic organic molecules, such as fatty acids, fats, steroids, and prostaglandins, are classified as lipids.

Lipids are a diverse group of organic molecules that share the common characteristic of being hydrophobic or insoluble in water. They are composed primarily of carbon and hydrogen atoms and have a smaller proportion of oxygen atoms compared to other organic compounds like carbohydrates. This unique composition gives them their hydrophobic properties.

Fatty acids are one of the building blocks of lipids. They consist of a hydrocarbon chain with a carboxyl group (-COOH) at one end. Fats, also known as triglycerides, are formed when three fatty acid molecules combine with a glycerol molecule through a process called esterification. Fats serve as a long-term energy storage in organisms.

Steroids are another type of lipid. They have a characteristic structure composed of four fused carbon rings. Examples of steroids include cholesterol, which is a crucial component of cell membranes, and hormones like estrogen and testosterone.

Prostaglandins are lipid compounds that play important roles in inflammation, blood clotting, and various physiological processes. They are derived from fatty acids and are involved in regulating various cellular activities.

Overall, lipids are essential molecules in living organisms. They serve as a concentrated source of energy, provide insulation and protection to organs, act as structural components of cell membranes, and function as signaling molecules in various biological processes.

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Answer:

sorry

Explanation:

hindi ko po Alam same din nga tayo

The mesoderm is the embryologic tissue layer that gives rise to the circulatory system

The mesoderm is the embryologic tissue layer that gives rise to the circulatory system. It forms the heart, blood vessels, and blood cells. The mesoderm is one of the three primary germ layers in the developing embryo, the other two being the ectoderm and endoderm. The mesoderm also gives rise to other important structures in the body, such as the musculoskeletal system and the urinary system.
The embryologic tissue layer that results in the circulatory system is the mesoderm. This layer gives rise to various structures, including the heart, blood vessels, and blood cells.

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A congenital aberration of the coronary artery anatomy is one where just one coronary artery emerges from the right sinus of Valsalva. The right and left coronary arteries emerge individually from their respective sinuses of Valsalva, which are the dilated regions at the base of the aorta, in a typical coronary artery configuration.

Both the right and left coronary arteries share a shared origin from a single coronary ostium when a single coronary artery originates from the right sinus of Valsalva. Thus, both the right and left coronary vascular systems are derived from a single coronary artery.

here is the complete question: Single coronary artery from the right sinus of Valsalva is described as?

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False, CINAHL (Cumulative Index to Nursing and Allied Health Literature) is not an antidoping agency. It is a database that provides access to nursing and allied health literature. The World Anti-Doping Agency (WADA) is the organization responsible for promoting, coordinating, and monitoring the fight against doping in sports internationally.

CINAHL (Cumulative Index to Nursing and Allied Health Literature) is not an antidoping agency that fosters fair play in Olympic sports. CINAHL is an authoritative database used by healthcare professionals, researchers, and students to access scholarly literature in the fields of nursing and allied health. It provides comprehensive coverage of articles from various medical journals, making it a valuable resource for those in the healthcare industry. However, CINAHL is not directly associated with antidoping efforts or Olympic sports.

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Answer:

9-c

Explanation:

10-a.................

Answer: a, c, d.

Explanation:

Answer: d.

more commonly in certain populations, such as the Amish.

Explanation:

A distinguishing characteristic of streptomycetes is mycelial proliferation. The ability to naturally generate mycelial pellets is frequently associated to the production of secondary metabolites, such as antibiotics or anticancer drugs. Streptomycetes can be made to produce single cells, though. Thus, option A is correct.

Through mycelia, fungi take up nutrients from their surroundings. The high surface-to-volume ratio of the branching mycelia enables effective nutrient absorption. Enzymes are released into the environment by some fungus to break down nutrients.

Therefore, Mycelia have a large surface area for absorption.

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Answer:

Properties. Convex, cyclic, equilateral, isogonal, isotoxal. In geometry, a dodecagon or 12-gon is any twelve-sided polygon.

Explanation:

Answer:

A drop of food coloring spreads out into a glass of water.

The smell of fresh-baked cookies starts from the kitchen and moves to the rest of the house.

The air freshener that you sprayed in the living rooms spreads out.

Explanation:

A difference in concentration of molecules in physical space is called a concentration gradient. An easy to understand example from everyday life is the application and subsequent fading of perfume or aftershave scent.

Answer:

Explanation:

These are the examples of concentration gradients in everyday life.

It is generally considered a good idea for a company to increase production from a point where marginal cost equals average total cost to a point where marginal revenue and marginal cost are equal.

When marginal cost equals average total cost, it means that the company is producing at its most efficient level, where the cost of producing an additional unit is equal to the average cost per unit. However, when marginal revenue and marginal cost are equal, it indicates that the company is maximizing its profit. This is because at this point, the revenue generated from selling an additional unit is equal to the cost of producing that unit.

By increasing production to the point of marginal revenue equaling marginal cost, the company is maximizing its profitability. It means that the company is producing and selling additional units as long as the marginal revenue exceeds the marginal cost, thereby increasing overall profits.

However, it's important to consider other factors such as market demand, pricing strategy, and capacity constraints. If there is limited demand for the additional units or if the company lacks the resources to scale up production, increasing output may not be beneficial.

In general, it is advisable for a company to increase production from a point where marginal cost equals average total cost to a point where marginal revenue and marginal cost are equal. This allows the company to maximize its profitability by producing and selling additional units as long as the marginal revenue exceeds the marginal cost. However, the decision should be evaluated in the context of market demand, pricing strategy, and production capacity to ensure it aligns with the company's overall objectives.

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Extrinsic homeostatic regulatory mechanisms typically control cell activities via the nervous and endocrine systems.

Extrinsic homeostatic regulatory mechanisms refer to the processes by which the body maintains a stable internal environment by adjusting cell activities. These mechanisms involve external factors and systems that coordinate and regulate cellular functions. Two primary systems involved in extrinsic regulation are the nervous system and the endocrine system.

The nervous system plays a crucial role in controlling cell activities through the transmission of electrical signals. It consists of the brain, spinal cord, and peripheral nerves. The nervous system regulates cell activities by sending signals to cells through specialized cells called neurons. These signals, known as nerve impulses, travel along the neurons and can stimulate or inhibit various cellular processes. For example, the nervous system can regulate heart rate, muscle contraction, and secretion of hormones by signaling the appropriate cells.

The endocrine system, on the other hand, controls cell activities through the release of hormones. The endocrine system consists of various glands, such as the pituitary gland, thyroid gland, and adrenal glands, which secrete hormones directly into the bloodstream. These hormones travel throughout the body and bind to specific target cells, initiating a response and regulating cellular activities. The endocrine system helps maintain homeostasis by controlling processes such as metabolism, growth and development, reproduction, and stress responses.

Together, the nervous and endocrine systems work in coordination to regulate cell activities and maintain homeostasis in the body. The nervous system primarily utilizes electrical signals to communicate with cells, while the endocrine system relies on the release of hormones into the bloodstream to affect target cells.

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If a cell with a diploid a total of 12 chromosomes undergoes meiosis, 4 cells each with 12 chromosomes be the outcome at the end of meiosis. Thus, option D is correct.

Meiosis is one of the specialized cell divisions that develop during the reproduction of organisms to generate cells called gametes with the help of chromosomes. Here meiosis will result in four haploid cells and each of them contains a number of chromosomes as the original cell.

During this Meosis process, Meiosis I and Meiosis II process will occur. Meiosis I helps in the pairing of homologous chromosomes and Meiosis II helps in the resulting of four daughter cells from the given 12 chromosomes.

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Answer:

rarefaction or compression or loudness or quietness?? among them one

Answer:

Loudness

Explanation:

Answer:

Immunoglobulin, is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.

Antimycin inhibits the process of active transport across the cell surface membrane. The correct answer is 1.

Active transport is a method of transporting substances across the cell surface membrane against their concentration gradient, meaning that they are moved from an area of lower concentration to an area of higher concentration.

This process requires energy in the form of ATP, which is produced by the electron transport chain in the mitochondria. Antimycin is a chemical that inhibits the electron transport chain, preventing the production of ATP and therefore inhibiting active transport across the cell surface membrane.

Facilitated diffusion and endocytosis, on the other hand, are not affected by antimycin. Facilitated diffusion is a passive process that does not require energy, and endocytosis is a process that involves the formation of vesicles, which is not directly dependent on the electron transport chain.

Therefore, the correct answer is 1. Active transport.

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