To test how fertilizer affects aquatic animals, a student prepared four identical containers with water fleas. The student then added different amounts of fertilizer mixed with distilled water to three of the containers and distilled water alone to one of the containers. Which factor is being tested in this experiment?
A. Age of water fleas
B. Amount of distilled water
C. Amount of fertilizer
D. Size of habitat
The right option is; C. Amount of fertilizer
Amount of fertilizer is the factor that is being tested in the experiment.
In this experiment, different amounts of fertilizer that was mixed with distilled water was added to three of the containers. The different amount of the applied fertilizer is expected to have different effect and to produce different results. This makes the amount of fertilizer to be the factor that is being tested in the experiment. The container to which only distilled water is added will serve as the control in the experiment.
The symptoms of swine pox for pigs include pustules on the abdomen, often with a red circular appearance around the blister area.
a. True
b. False
after digestion and absorption, an amino acid not used to build protein will first be subjected to ____.
After digestion, an amino acid not absorbed by the body and not used to build proteins will first be subjected to removal from its amino group. If they are not used for protein synthesis, amino acids becomes part of the metabolism process. The body has the capability to create a subset of amino acids, also known as non-essential amino acids because we don’t have requirement for them in our diet.
Final answer:
After absorption, an excess amino acid not used in protein synthesis will first undergo transamination or deamination, resulting in the removal of its amino group, which leads to urea formation for safe excretion, while the remainder of the amino acid can be repurposed for energy, glucose, or ketone body production.
Explanation:
After digestion and absorption, an amino acid not used to build protein will first be subjected to transamination or deamination. During the transamination process, the amino group of the amino acid is transferred to α-ketoglutarate, resulting in the formation of glutamate and a new α-keto acid. If the amino acid undergoes deamination, its amino group is removed, converting it into ammonia which is toxic. The liver then converts the ammonia into urea, a less toxic compound that can be safely excreted from the body through urine.
The carbon skeletons that remain after deamination can be used for various purposes in the body such as energy production, synthesis of glucose, or synthesis of ketone bodies. However, it's important to note that the body prioritizes the use of amino acids for the synthesis of new proteins, and only when there's an excess or during starvation, the amino acids are directed towards energy production pathways.
Which anatomical part of the eye is responsible for the production of tears?
Which relationship occurs between prey and another organism? Commensalism Mutualism Parasitism Predation
Answer:
The correct answer is Predation.
Explanation:
Predation is the interaction between two organisms in which one organism is harmed which is prey and other organism is benefited who is predator.
In predation, predator kills the prey and consumes it to get energy. Predators by killing their pray control the population of prey in nature and help the ecosystem to remain in a balanced position.
For example, lions hunt deer and eat them. Here lion is the predator and deer is the prey and lions control the overgrowth of deer in the wild by preying in deer. Therefore the correct answer is Predation.
The relationship between a predator and its prey is referred to as predation. In this relationship, the predator (the organism that hunts) benefits by getting food, while the prey (the organism that is hunted) is harmed.
Explanation:The relationship that occurs between prey and another organism in the options you provided is Predation. In this relationship, one organism (the predator) hunts and kills another organism (the prey) for food. Unlike mutualism, where both organisms benefit, or commensalism, where one organism benefits and the other is unaffected, predation involves one organism benefiting at the expense of the other. An example of predation is a lion hunting a gazelle.
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What is the next phase of the carbon cycle for the carbon source labeled B?
A. Condensation
B. Transpiration
C. Photosynthesis
D. Decomposition
Answer:
d
Explanation:
Describe the characteristics of a stable society
Answer:
Following are characteristics of a stable society:
1. An autonomous society is essential for stability.
2. It should have social institutions including schools, political organizations, and churches, among others.
3. It should be well structured.
4. The inhabitants of a society ought to work together.
Explanation:
A(n) _____ reaction occurs when ionic or covalent bonds are broken and elements, ions, or simpler molecules are formed.
A. Reversible
B. Decomposition
C. Exchange
Answer:
The correct answer is B. A(n) decomposition reaction occurs when ionic or covalent bonds are broken and elements, ions, or simpler molecules are formed.
Explanation:
The decomposition reaction can be described as a type of chemical reaction in which a product is broken down to yield simpler molecules or atoms. Energy is needed for a decomposition reaction to occur.
For example, a decomposition reaction occurs when a molecule of water is broken down to yield two hydrogens and an oxygen atom. The covalent bonds used to form water are broken down during the decomposition reaction.
What do you think would happen to the gummy bear if you let it soak in salt water overnight
A gummy bear left in salt water overnight will shrink due to the process of osmosis, which is the movement of water from a lower concentration (in the gummy bear) to a higher concentration (in the salt water). The gummy bear loses more water than it absorbs because of the high salt concentration in the water.
Explanation:When a gummy bear is left to soak in salt water overnight, it will experience osmosis because of the difference in solute concentration between its gelatin makeup and the salty water. The salt in the water will draw the water out of the gummy bear as it tries to equalize the concentration of water. The result is that the gummy bear will shrink after being left in salt water overnight, because it loses more water than it can absorb due to the higher concentration of salt in the water.
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Which of these statements is not correct about enzymes? 1. enzymes lower the potential energy for the reactions they catalyze. 2. enzymes have specific substrates and optimal conditions. 3. enzymes are mostly proteins that function as catalysts. 4. enzymes may perform a reaction many times until it is degraded. 5. enzyme activity can be regulated by ph and temperature?
Enzymes are the bio-catalysts which added to a chemical reaction which lowers the activation energy of the reaction. Enzymes have specific substrates and optimal conditions. Thus, the correct option is 1.
What are enzymes?Enzymes are the proteins which act as biological catalysts by accelerating the rate of chemical reactions. The molecules upon which enzymes act are known as substrates, and the enzyme converts these substrates into different molecules called products.
Enzymes act by decreasing the activation energy of the chemical reaction. These are not used up in a chemical reaction and therefore can perform a reaction multiple times until it is degraded. The enzymes show affinity to specific substrates and have optimal conditions such as temperature, pressure, and pH at which they show maximum activity.
Therefore, the correct option is 1.
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Explain why living things need both glucose and atp
When the cell potential is negative in a voltaic cell, the cell reaction will not proceed spontneously
a. True
b. False?
What are three reasons a species may become extinct?
A study was conducted to examine the impact of temperature changes on the number of "non-native species" in an area of the mid-Atlantic ocean. The results of the study are shown in the table below.
Temperature (°C) Number of species
Sample 1 15 12
Sample 2 22 10
Sample 3 32 23
Sample 4 27 19
What is the relationship between temperature and non-native species?
There are more non-native species in warmer temperatures.
There is no correlation.
There are fewer non-native species in warmer temperatures.
There are more non-native species in colder temperatures.
Final answer:
Based on the dataset provided, there is a trend indicating that there are more non-native species in warmer temperatures in the mid-Atlantic ocean region.
Explanation:
The relationship between temperature and non-native species can be interpreted from the given dataset. When analyzing the number of non-native species at various temperatures, it can be seen that there tends to be more non-native species in warmer temperatures. For example, at 15 °C, there are 12 species, and at 32 °C, there are 23 species. This suggests that there might be a positive correlation between temperature and the number of non-native species. This is consistent with research suggesting that many marine species, including non-native or invasive species, may shift their distributions in response to temperature changes, often moving towards warmer waters.
Who must follow the regulations in the bloodborne pathogens standard?
The bloodborne pathogens standard regulations apply to anyone frequently exposed to blood and potentially infectious materials. Majorly, healthcare providers, laboratory personnel, and individuals at higher risk, such as drug addicts and dentists, need to adhere to these guidelines. Precautions include using personal protective equipment and adhering to specific safety protocols.
Explanation:The regulations in the bloodborne pathogens standard must be followed by a range of individuals and occupations, particularly those with frequent exposure to blood and other potentially infectious materials. Many of these individuals work in healthcare settings or laboratories.
Medical personnel, such as doctors, nurses, and laboratory researchers, should strictly adhere to these regulations to limit the transmission risk of infections. These individuals often utilize special protocols including personal protective equipment and chemical disinfectant sprays.
People that work within the BSL-2 and BSL-1 laboratory levels must also follow these regulations due to the pathogens they regularly interact with, such as Staphylococcus aureus and hepatitis viruses. In these settings, additional precautions are not only suggested but also required to ensure the least risk of transmission.
Lastly, people with higher exposure risks, like dentists, phlebotomists, or those who use needles (such as drug addicts), are also required to adhere to these standards for their personal protection.
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Why plants are kept in the dark for a week are still able to conduct cellular respiration.?
"when treating a patient who experienced a pulmonary blast injury, you should"
The answer is avoid giving oxygen under positive pressure.
A blast injury is a complex type of physical trauma resulting from direct or indirect exposure to an explosion. Blast injuries occur with the detonation of high-order explosives as well as the deflagration of low order explosives. These injuries are compounded when the explosion occurs in a confined space.
In treating a pulmonary blast injury, ensure the patient's airway is open and they are receiving sufficient oxygen. Then focus on diagnosing injury extent and managing symptoms. The patient should be closely monitored to update the treatment plan if needed.
Explanation:When treating a patient who has experienced a pulmonary blast injury, healthcare professionals should first ensure that the airway is open and that the patient is receiving sufficient oxygen. Immediate stabilization to prevent further lung damage is crucial. Following this, the focus should shift to diagnosing the extent of the injury and managing related symptoms. This could involve thoracic imaging to visualize the extent of damage, pain control, respiratory therapy, possible use of steroids, wound care, and possible surgery. As with all medical care, the patient should be closely monitored to understand response to treatment and adjust as necessary.
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which process usually uses carbon dioxide molecules
Photosynthesis is the biological process that uses carbon dioxide, transforming it along with water into glucose and oxygen due to the energy from sunlight.
Explanation:The process that usually uses carbon dioxide molecules is photosynthesis. This is a process performed by plants, algae, and certain types of bacteria. In photosynthesis, carbon dioxide is absorbed from the environment and combined with water through the energy from sunlight. This results in the production of glucose, which is a type of sugar serving as a primary energy source for these organisms. Moreover, photosynthesis also produces oxygen as a byproduct, which is released into the atmosphere and used by animals for respiration.
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The electrochemical gradient in a chloroplast can have a concentration of protons 1000 times greater on one side of a thylakoid membrane than the other.
a. True
b. False
A) explain the hardy-weinberg principle of equilibrium theory. (4 pts.)
b.apply the hardy-weinberg principle to this scenario. in plants, violet flower color (v) is dominant over white (v). if p=.8 and q = 0.2 in a population of 500 plants, how many individuals would you expect to be homozygous dominant ( vv), heterozygous (vv), and homozygous recessive (vv)? how many plants would you expect to have violet flowers, and how many would have white flowers? (6 pts.)
Inorganic nutrients that your body needs, usually in small amounts, are called
A woman with one allele for huntington's disease marries a man who also has one allele for the disease. what is the probability that their child will have the disease?
The United States Mint began minting and issuing American Indian $1 coins in 2009. Consider the 2011 American Indian $1 coin below.
mc026-1.jpg
Which is an accurate observation?
A) The coin shows that passing the peace pipe was an important tradition in 1621.
B) The coin was minted in the year 1621.
C) There is a woman’s face on one side of the coin.
D) The coin shows that American Indians influenced US history.
I just took this test, and the correct answer is C
Option C i.e There is a woman’s face on one side of the coin is the correct answer.
The Accurate Observation provides accurate information while observing an object. So while observing physically (accurate observation) the 2011 American Indian $1 coin, we can see woman’s face on one side of the coin. The women is Sacagawea, a Shoshone interpreter who guided Lewis and Clark Expedition into the American West.
Which of the ones below can be found in the arterioles but not in the capillaries?
A soccer player complains of locking and pain that is localized in the knee. on further interview, the nurse learns that the player has a history of knee trauma. on further assessment, the nurse suspects a torn meniscus. which test helps the nurse in coming to this conclusion?
If an individual has 7 gene pairs, how many different gametes can be formed if two of the gene pairs are homozygous and the remaining 5 gene pairs are heterozygous?
Final answer:
An individual with 7 gene pairs, of which two are homozygous and five are heterozygous, can form 32 different gametes. This is due to the 2⁵ possible combinations for the alleles from the heterozygous pairs, while the homozygous pairs do not contribute to variability.
Explanation:
Calculating Different Possible Gametes
When considering the formation of gametes in an organism, we need to understand Mendel's Law of Segregation and the concept of genetic variability. An individual with 7 gene pairs where two are homozygous and five are heterozygous can produce different combinations of gametes. The homozygous gene pairs will each contribute one type of allele, since both alleles are the same. However, each heterozygous gene pair can contribute two different types of alleles because they have one of each allele.
Therefore, for the five heterozygous gene pairs, since each pair can contribute 2 different alleles, we use the formula 2ⁿ, where n is the number of heterozygous gene pairs, to determine the number of different gametes possible. For five heterozygous pairs, we calculate 2⁵, which equals 32. The homozygous pairs do not contribute to variability, and thus the total number of different gametes this individual can form is 32.
Baby alfredo looks more intensely at a checkerboard with large black and white squares rather than one with smaller gray and white squares. alfredo is
Is it true that becoming health literate requires understanding technical medical terms?
Which is not a factor in determining the rate at which alcohol is absorbed into the bloodstream?
The factor which is not a determining factor for the rate at which alcohol is absorbed is : ( D ) All of the above
The factors that do not affect absorption of alcoholThe absorption of alcohol into the bloodstream is not affected by several factors such as The alcoholic content in the beverage, The presence or absence of food in the stomach, the amount of alcohol consumed does not affect the rate at which alcohol is absorbed into the bloodstream.
Hence we can conclude that The factor which is not a determining factor for the rate at which alcohol is absorbed is : ( D ) All of the above
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Attached below is the missing options of the question
A) the alcoholic content of the beverage
B) the presence or absence of food in the stomach
C) the amount consumed
D) all of the above
E) A and C only
Real-motion neurons found in the monkey cortex fire when _____ moves, but do not fire when _____ moves. a stimulus; the background the background; a stimulus the eye; a stimulus a stimulus; the eye