What type of questions does developmental biology address?​

Answer: Sensory mechanisms are responsible for detecting the external stimuli present in the environment.

Explanation:

The sensory mechanisms help people to observe things around them through eyes, they can hear the sounds through their ears, they can feel the insect creeping on their skin by touch sensory mechanism, they can taste food which they cook through taste or gustatory receptors present on tongue and other parts of mouth cavity.

Answer:

Sensory mechanisms are responsible for detecting the external stimuli present in the environment.

Explanation:

The weight of the sugar and water solution will not change because a physical change occured.

A physical change in chemistry refers to the change affecting the form of a chemical substance, but not its chemical composition.

Unlike a chemical change, a physical change does not alter the chemical bonds or composition of the substances involved.

According to this question, sugar and water are weighed separately before combining them. After they are combined, the weight will equate to the sum of both substances because no chemical reaction occured.

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Answer:

A renewable resource is a natural material that is replenished in the environment through natural processes. These materials can be used indefinitely, as long as they are not consumed at a rate faster than they can be restored.

According to the research, the correct option is frontal lobe. The frontal lobe of the cerebral cortex is MOST directly involved in speaking.

It is the area of the brain that is located in the most anterior part of the head, and it is essential for the human being since it works to plan and coordinate the speaking and social behavior of each individual.

In this sense, working memory, speaking and the articulation of words, movement or self-awareness depend on the frontal lobe, also the prefrontal cortex is located, which is broader and has relationships with many brain structures.

Therefore, we can conclude that according to the research, the correct option is frontal lobe. The frontal lobe of the cerebral cortex is MOST directly involved in speaking.

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Answer: because the flow of intracellular metabolic components depends on the availability of carbon

Explanation: The response indicates that if the mutation interferes with glucose breakdown, less ATP will be available to the cells. The change in ATP availability will reduce the growth rate and population size of the bacteria , and since it is considered as model organism due to various factors such as its ability to grow fast using cheap media and availability of molecular tools to perform genetic manipulations it is termed as useful indicator

Trichoplax adhaerens is a small, flattened, and ciliated animal belonging to Placozoa phylum. Its body is a few millimeters in size and has a simple, two-layered structure, with an outer layer of cover cells and an inner layer of cylinder cells.

Thus, the different structures of Trichoplax adhaerens include dorsal surface which is the upper surface facing upward.  Then, cover cells are present which is the outermost layer of cells that cover the animal body.

Ventral surface in Trichoplax adhaerens is the lower surface of the animal facing downward. Cylinder cells are the inner layer of cells lining the digestive cavity of the animal.

Gland cells are the cells that secrete enzymes for digestion in Trichoplax adhaerens. Fiber cells help to maintain the shape of the animal and cilia are hair-like structures covering the surface of the animal.

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The liver is a vital organ as it secretes one of the most important enzyme- Bile.

Bile aids in digestion by breaking down fats in the small intestine and carrying waste away, making specific proteins for blood plasma. Cholesterol and unique proteins are produced to assist the body in transporting fats. The liver's special ability to produce bile is essential to the organism's existence. Recent advances in the understanding of the mechanism underlying bile production have laid the groundwork for improved diagnosis and management of cholestatic diseases.

Hepatocytes produce bile, an intricate aqueous secretion that is altered distally by absorptive and secretory transport systems in the bile duct epithelium. After that, bile either travels directly to the intestinal lumen or is concentrated in the gallbladder. A number of endogenous solid elements, such as bile salts, bilirubin phospholipid, cholesterol, amino acids, steroids, enzymes, porphyrins, vitamins, and heavy metals, as well as exogenous medicines, xenobiotics, and environmental pollutants, are dissolved in bile's approximately 95% water content.

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Answer:

The correct answer is option c "Proteins that are excreted by prokaryotes are synthesized on ribosomes that are bound to the cytoplasmic surface of the plasma membrane".

Explanation:

Many prokaryotes secrete proteins, particularly, extracellular enzymes that have a function outside the cells and toxins that are not needed by the cell. As any other protein, proteins that are excreted by prokaryotes are synthesized on ribosomes  that are bound to the cytoplasmic surface of the plasma membrane. However, excreted proteins go to the general secretion (Sec) pathway, where they are tagged and further processed.

Answer:

When gears and other structures are assembled into a bicycle, the entire assembly can propel the rider.

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The emergent property is that cell is the basic unit of life, one or more cells combine to form organism. The correct option is A.

An emergent property is a distinctive feature that an entity acquires after becoming a part of a larger system.

Emergent properties aid in the adaptation of living organisms to their surroundings and enhance their likelihood of survival.

Carrying capacities for all species in an ecosystem's biological community are an emergent phenomenon of the ecosystem in its entirety because each species' food supply is a result of what happens in other parts of the ecosystem.

In the given scenario, cells being the basic fundamental structural unit of life, is forming a complete organism. This property of cell is indicating the emergent property.

Thus, the correct option is A.

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Your question seems incomplete, the missing options are attached in the image below:

Answer:  Major grain crops are corn, wheat, barley, oats, rye, rice, sorghum, and soybeans. Less than 10 percent of the corn grown in the U.S. is for human consumption. Legume plants such as dry beans and peas are important foods in the diet of many Americans and people around the world.

Explanation:

Answer:

Continuous blood flow and constant breathing.

Explanation:

Gas exchange by diffusion depends on large surface area provided by the hundreds of millions of alveoli in the lungs. It also depends on a steep concentration gradient for oxygen and carbon dioxide.

Ribosomes do not directly create mutations, but cellular mechanisms such as DNA repair and checkpoints help control and minimize the occurrence of mutations.

Ribosomes themselves do not directly create mutations. Mutations, which are changes in DNA sequence, can occur due to errors during DNA replication or from external factors like radiation or certain chemicals. However, the cellular machinery, including ribosomes, plays a role in the control of mutations through various mechanisms. DNA repair mechanisms help identify and correct errors or damage in the DNA sequence, reducing the likelihood of mutations. Additionally, cellular checkpoints and regulatory processes monitor and control cell division, ensuring that accurate DNA replication and distribution occur, minimizing the inheritance of mutations to daughter cells.

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The population of AA increases but on the other hand AB and BB the population decreases after 10th generation.

The genetic makeup of an individual is called their genotype. The two alleles that a person has inherited for a single gene are referred to by this phrase in more detail.

Here for Generation 1, AA = 1, AB = 13, BB = 6

After 10 years it changes AA = 5,AB = 12 and BB =3.

Because AA genotype is generate new genes and alleles, increasing genetic variety In a population, new genetic diversity may be formed within generations, hence a population with a fast rate of reproduction would most likely have a high level of genetic variety.

On the other hand, for AB and BB is decrease in no because:

Rare alleles can disappear due to genetic drift, which can also shrink the gene pool. According to the theory that genetic drift contributes to the development of new species, genetic drift can also result in a new population being genetically diverse from its ancestral population.

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To solve the problem of hazardous waste generated from medical procedures and the release of chemicals like mercury into the air, a combination of technological approaches can be employed.

B. Find a way to trap the mercury before it is released: Implementing advanced filtration systems and scrubbers in medical waste incinerators can effectively capture and contain mercury and other harmful substances. This prevents their release into the environment and ensures their proper disposal.

D. Store the waste underground instead of burning it: Rather than incinerating medical waste, an alternative method involves safely storing it underground in specially designed containers. This approach minimizes the risk of releasing hazardous chemicals into the air and reduces the potential for environmental contamination.

A. Incinerate the waste in areas with low populations: Locating medical waste incinerators in remote or sparsely populated areas can help minimize the exposure of nearby communities to hazardous emissions. This approach ensures that the impact on public health is minimized while still addressing the waste management problem.

C. Reduce the number of medical procedures performed: Implementing strategies to reduce unnecessary medical procedures, optimizing healthcare practices, and promoting preventive measures can effectively reduce the overall volume of medical waste generated. This approach not only mitigates the waste management issue but also has broader benefits in terms of healthcare efficiency and cost-effectiveness.

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The given statement " Algae indeed produce energy-rich carbon compounds through photosynthesis". is True because  Photosynthesis is a vital process that occurs in the chloroplasts of algae cells.

During photosynthesis, algae capture light energy using pigments like chlorophyll and convert it into chemical energy. They utilize this energy to break down water molecules, releasing oxygen as a byproduct, and incorporating carbon dioxide from the surrounding environment. Through a series of enzymatic reactions, algae synthesize glucose, a high-energy carbon compound.

Glucose serves as a primary source of energy for algae, enabling them to carry out essential metabolic processes and sustain their growth. Additionally, algae can convert excess glucose into other energy-rich carbon compounds, such as lipids and starches, which serve as energy storage molecules. These compounds can be used during periods of limited sunlight or nutrient availability.

Overall, algae's ability to generate energy-rich carbon compounds through photosynthesis makes them an important component of aquatic ecosystems and potential sources for renewable energy production and biofuel development.

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The supervisor at the blood bank would likely consider spilling 5 units of blood (problem 2) as the most serious issue among the listed problems. While all the problems listed have their own level of seriousness, spilling 5 units of blood poses significant concerns. The correct answer is 2.

Spilling 5 units of blood represents a critical error with potentially severe consequences. Blood is a valuable and potentially life-saving resource, and any loss or contamination can have serious implications for patient care.

It not only wastes precious resources but also poses potential risks to both patients and staff members, including the potential for infections and the need for additional blood collection.

While other problems like coming to work late, working too slowly, mislabeling units of blood, or breaking a microscope lens can impact efficiency, accuracy, and productivity, they may not directly jeopardize patient health and safety to the same extent as spilling blood.

Therefore, the supervisor would likely consider the spilling of 5 units of blood as the most serious problem, requiring immediate attention, investigation, and measures to prevent such incidents in the future. Therefore, the correct answer is 2.

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Question

1. At a blood bank there were five problems with a laboratory technician's work performance the first year at work. Which of the problems listed below would the technician's supervisor likely consider the most serious? (1) coming to work late

(2) spilling 5 units of blood

(3) working too slowly

(4) mislabeling 4 units of blood

(5) breaking the lens on a microscope

Answer:

B). Both are formed by the chemical reaction between limestone and groundwater.

Explanation:

The second statement correctly states that both Sinkhole and Cave as shown by the picture are created as a result of the chemical reaction that takes place between the groundwater and limestone. The sinkholes are characterized as the cavities that form in soluble rock by the action of water. It is often caused due to the excess withdrawal of groundwater that leads to the collapse of the surface. Similarly, the caves also form when the limestone(a rock) dissolves due to rainwater percolating CO2 through the soil which causes the reaction to take place. Thus, option B is the correct answer.

Answer:

I picked B and got it correct.

Explanation:

Answer:

Homo means the same, therefore a homogenous mixture is a mixture that is the same all the way through

Answer:

Explanation:

Water molecules are broken down by an enzyme into oxygen gas, electrons, and hydrogen ions. The electrons are integral to enabling the hydrogen pump to work. Hydrogen ions react with an enzyme to turn ADP into ATP.

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Vinegar production does require a fermentation cascade, but the ethanolic fermenter is not the final fermenter in the process. Initially, the yeast Saccharomyces cerevisiae is used to ferment the sugar in the vinegar substrate into ethanol and carbon dioxide.

This is the ethanolic fermentation step. Then, Acetobacter aceti, a type of bacteria, converts the ethanol into acetic acid in a process called acetic acid fermentation. This is the final step in the vinegar production process. So, both the ethanolic fermenter and the acetic acid fermenter are important in vinegar production, but the acetic acid fermenter is the final step in the process.

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Answer: The Answer is D, Insects.

Explanation: If you look on the chart, you can see insects are the furthest away, indicating they are the least similar.

Answer: Insects.

Explanation:

They lack an internal skeleton, lay eggs, and share the least amount of similarities.

Answer:

the answer is D. it releases lots of heat

Coal releases lots of heat is an advantage of using coal for energy. Therefore, the correct statement is option D.

Coal is a fossil fuel that is used to generate energy in many parts of the world. When coal is burned, energy is released in the form of heat that generates electricity. Coal is a fossil fuel used for centuries to provide heat to homes, industries, etc., and provides a significant source of electricity in many parts of the world.

Coal is also relatively abundant and is easily transported, which makes it cost-effective for energy production. However, there are also several disadvantages to using coal.

Burning coal produces a large amount of carbon dioxide, a greenhouse gas contributing to climate change. Coal mining and transport also have negative impacts, such as air and water pollution, habitat destruction, and displacement of communities.

Therefore, coal releases lots of heat is an advantage of using coal for energy.

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Answer:

Hi how are you doing today Jasmine

Insulin is a hydrophilic compound, binds to a receptor site on the cell's extracellular surface causing activation of a second messenger system on the cell's interior.

Insulin is defined as a peptide hormone produced by the beta cells of the pancreatic islets in humans encoded by the INS gene, which is considered the body's main anabolic hormone.

Insulin is an essential hormone that helps the body convert food into energy and control blood sugar levels. If a person has diabetes, the body cannot make enough insulin or use it properly.

Thus, Insulin is a hydrophilic compound, binds to a receptor site on the cell's extracellular surface causing activation of a second messenger system on the cell's interior.

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The two pieces of evidence that support the theory of the expanding universe are the red shift of light from distant stars and the existence of cosmic background radiation.

The correct answer is option B.

1. Red shift of light from distant stars: The observation of redshift in the light coming from distant galaxies provides evidence for the expansion of the universe. Redshift occurs when the light waves from an object moving away from an observer are stretched, causing a shift towards longer wavelengths. This phenomenon is consistent with the Doppler effect, where the wavelength of light appears to stretch as the source moves away. The redshift of light from distant stars indicates that galaxies are moving away from us and from each other, supporting the idea that the universe is expanding.

2. Existence of cosmic background radiation: The discovery of cosmic background radiation further supports the theory of the expanding universe. Cosmic background radiation is a faint, uniform microwave radiation that permeates the entire universe. It is believed to be residual radiation from the Big Bang, the initial event that is thought to have initiated the expansion of the universe. The presence of cosmic background radiation provides strong evidence for the hot, dense early stages of the universe and its subsequent expansion.

Based on the information provided in the diagram, it is not possible to determine the identity or nature of the celestial objects labeled X. The diagram only represents the expansion of the universe over time and does not provide specific details about individual celestial objects.

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Answer: 5

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