if a neurotransmitter is viewed as a key, what structure would be viewed as the lock?
Answers
The structure that would be viewed as the lock in the context of a neurotransmitter being viewed as a key is the receptor.
The dendrites will admit the neurotransmitters only if they are the right shape to fit in the receptor sites on the receiving neuron. For this reason, the receptor sites and neurotransmitters are often compared to a lock and key
Neurotransmitters bind to specific receptors on the surface of target cells in order to initiate a cellular response.
Just like a key needs to fit into a specific lock to open a door, a neurotransmitter needs to bind to a specific receptor in order to activate a biological process.
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In Mendel's experiments, what proportion of the plants in the F z generation had a trait that had been absent in the F1 generation?
A. none
B. three-fourths
C. one-fourth
D. half
Answers
Answer:
C.)
Explanation:
I think this is correct. I hope this helps.
Answer:
i want to say C. so sorry if i am wrong
Explanation:
Why can water provide a stable liquid environment within cells when the temperature changes?
Answers
Answer:
Water has a very high specific heat capacity. This is because energy is needed to break hydrogen bonds. water resists temperature changes, providing a more stable environment within cells and for aquatic organisms.
Which of the following are examples of a limiting factor?
A. Only water.
B. Only minerals.
C. Water and sunlight.
D. Water, minerals and sunlight
Answers
C. Procedures: Using SamData to estimate Energy Transfer from Producers to Primary Producers In this part of the lab, teams used Brussels Sprouts as their producers and cabbage butterfly larvae as the primary consumers. Refer back to the E/Biomass diagram for butterfly larvae you filled out in Pre-Lab #2 With your group, discuss how you would calculate the secondary productivity and the amount of energy lost to cellular respiration Known values (energy contained): plant 4.35 kcal/g larvae 5,5 kcal/g frass 4.75 kcal/g 1. Suggest a reason(s) why plants, larvae and frass might contain differing amounts of energy.
Answers
Plants, larvae, and frass might contain differing amounts of energy due to differences in their biochemical composition, nutrient content, and metabolic processes.
The differences in the biochemical composition of plants, larvae, and frass stem from the unique requirements and strategies of each organism. Plants are primary producers and derive their energy from photosynthesis, which involves converting light energy into chemical energy in the form of carbohydrates such as glucose. The amount and quality of energy stored in plants depend on factors such as the availability of light, water, and nutrients, as well as the plant species and growth stage.
On the other hand, larvae are consumers and must obtain their energy by consuming other organisms, such as plants. The quality and quantity of energy contained in larvae depend on their diet, which can vary depending on factors such as the plant species, growth stage, and availability, as well as the feeding behavior and digestive physiology of the larvae.
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What is a hard shell on a turtle an example of?
A: structural adaptation
B: behavioral adaptation
C: genetic adaptation
Answers
Answer:
A
Explanation:
Adaptations that can be seen with the naked eye are structural adaptations.
Use the UCSC Genome Browser (http://genome.ucsc.edu/) to determine how many amino acids are in the protein encoded by the EFNB3 gene.
Answers
Perform the following steps using the UCSC Genome Browser to determine how many amino acids make up the protein for which the EFNB3 gene codes:
To access the UCSC Genome Browser, visit the genome.ucsc.edu website.Select "Gnome" from the top menu, then select the desired Gnome assembly. For example, take "human" and the latest assembly.Enter "EFNB3" in the search box at the top left of the page, then press the Search button.To display information about the "EFNB3" gene, select it from the search results.To access the "Protein Information" section, scroll down. Here is a description of the protein that the EFNB3 gene encodes.Find the entry that lists the length or amount of amino acids in the protein.Learn more about Genome Browser here:
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Which fact was most likely discovered between the time of Mendeleev’s table and the time of Moseley’s table that helped Moseley develop his version?
Atomic mass is the average mass of different samples of the same element.
Different elements can have similar chemical properties even if their atomic masses are different.
The number of protons in an atom is different than the atom’s total mass.
Protons strongly affect an element’s atomic mass, while the electrons in atoms do not.
Answers
The fact which helped in developing Moseley's table was that the number of protons in an atom is different than the atom's total mass. Thus, the correct option is C.
What is Mendeleev's periodic table?Mendeleev's periodic table can be defined as a systematic positioning of chemical elements on the basis of their increasing atomic mass in a tabular form. It reflects the similarities and the trends in the behavior of these elements.
Mendeleev's periodic table helped Moseley in developing the periodic table to a major extent. As, all the drawbacks of Mendeleev's periodic table are shorted out by Moseley in a more efficient way.
One of the drawbacks which was shorted out was the number of protons in an atom is different than the atom’s total mass because the total atomic mass of a chemical element depends on the number of protons in the element, neutrons, and electrons. Altogether, these constitute the element.
Therefore, the correct option is C.
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Disturbances inside Earth’s core cause earthquakes. The starting point of the disturbance is called the epicenter. Why does the amplitude of a seismic wave usually decrease as the wave moves away from the epicenter?
A.
The waves lose energy in the form of heat.
B.
The frequency of the waves continues to increase.
C.
The wavelength of the waves continues to decrease.
D.
The waves encounter entirely different mediums.
Answers
D. The waves encounter entirely different mediums.
Why does the amplitude of a seismic wave decrease as the wave moves away from the epicenter?At farther distances, the amplitude of the seismic waves decreases as the energy released by the earthquake spreads throughout a larger volume and different mediums of Earth.
So we can conclude that option D is the right answer.
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The amplitude of a seismic wave generally decreases as the wave moves away from the epicenter because the waves encounter entirely different media.
Option D. The waves encounter entirely different mediums.What are seismic waves and epicenter?Seismic waves are waves of a mechanical nature, they propagate on Earth as a result of an earthquake or explosion. They are vibrations that are transmitted due to a release of energy from a specific point that is called a seismic focus. and the resistance found in the medium in which it propagates decreases the energy, dicipating it.
With this information, we can conclude that Seismic waves are movements of rock particles that are transmitted along concentric surfaces due to the sudden release of energy at the seismic focus.
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Aluminum reacts with oxygen to produce aluminum oxide which can be used as an adsorbent, desiccant, or catalyst for organic reactions. A mixture of 82.49 g of aluminum and 117.65 g of oxygen is allowed to react. What is the mass of the excess reactant present in the vessel when the reaction is complete
Answers
The greatest amount of product that can be created is determined by the limiting reactant, which is the one that is totally consumed in the reaction.
Molar mass of aluminum (Al) = 26.98 g/mol.Molar mass of oxygen (O2) = 32.00 g/molNumber of moles of aluminum = mass / molar mass = 82.49 g / 26.98 g/mol = 3.06 molNumber of moles of oxygen = mass / molar mass = 117.65 g / 32.00 g/mol = 3.68 molTo determine the limiting reactant, we compare the mole ratio of the reactants in the balanced chemical equation. The balanced equation for the reaction is:4 Al + 3 O2 → 2 Al2O3From the balanced equation, we see that the mole ratio of aluminum to oxygen is 4:3. Therefore, for every 4 moles of aluminum, we need 3 moles of oxygen.Since we have 3.06 moles of aluminum and 3.68 moles of oxygen, the oxygen is in excess.Now, let's calculate the mass of the excess oxygen:Mass of excess oxygen = (moles of excess oxygen) × (molar mass of oxygen)= (3.68 mol - 3.06 mol) × (32.00 g/mol)= 19.04 gTherefore, the mass of the excess reactant (oxygen) present in the vessel when the reaction is complete is 19.04 grams.
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If a individual posses an allele for a diease but does not have the diease this person is known as a
Answers
Answer:
The correct answer is - carrier.
Explanation:
If an individual posses an allele for the disease and does not affect by the disease such a person known as the Carrier of the disease. Such a person only posses one allele of the mutated gene or disease gene and a normal gene in their genotype.
They are mostly heterozygous for the particular trait or disease, therefore, do not get affected by the only allele of the disease gene. Generally, such a disease found in a recessive gene that causes it to masked in a person and carried to the next generation.
a world without us What were the two species of monkeys forced to do because of their reduced population?
Answers
Alarmingly, populations of 75% of primate species are falling, and 60% are currently endangered.
The expansion of industrial agriculture, extensive cattle ranching, logging, oil and gas drilling, mining, building of dams, and the creation of new road networks in areas where primates range are the main causes of the situation. Additionally, there are local and global market demands that have contributed to significant habitat loss as well.
Together with growing dangers like climate change and anthroponotic illnesses, other significant causes include increased bushmeat hunting, the illegal traffic in primates as pets and in their body parts, and these. These factors frequently work together to exacerbate decreases in the primate population. Given that the areas of primate range overlap significantly with those of a sizable, fast expanding, and markedly impoverished human population, urgent global attention is required to prevent the impending threat of primate extinction and to address local human needs in a sustainable manner. It is critical to increase public and scientific awareness of the situation facing primates worldwide and the harm their extinction would cause to ecosystem health and human society.
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1If you have 52.4 grams of hydrogen and 52.4 grams of helium, which one has a greater mass ? Why ?
Answers
Answer:
Hydrogen.
Explanation:
Hydrogen has greater mass and it's bigger than helium because as we move from left to right on the periodic table, atomic size decreases. Hydrogen atom is normally signified than H2 which is bigger than an atom of helium.
Also hydrogen has an atomic radius of 53pm while Helium has an atomic radius of 31 pm. Therefore the mass of helium is smaller than that of hydrogen.
Which of the following lists include only biotic parts of an ecosystem?
A. Rain, Grass, Seeds, Mice
B. Sand, Air, Water, Sunlight
C.Log, Dead Grass, Fungi, Bird
D.Bacteria, Soil, Minerals, Worms
Answers
The answer is C, all are alive or have been alive.
How do transporters and channels select which solutes they help move across the membrane?.
Answers
Answer:
Channels discriminate between solutes mainly on the basis of size and electric charge.
Explanation:
Why don’t we include viruses when we discuss reproduction?
Answers
Answer:
Viruses latch onto other cells (host cells) in order to reproduce. They do not reproduce by themselves. Instead, they use another cell to repopulate.
Explanation:
I hope this is correct. ;w;
How has our relationship with milk changed pollution in the last 200 years?
Answers
Answer:Milk production and consumption now cause much more pollution
Explanation:Globally, milk production and consumption requires extensive dairy farming. This leads to emission of methane which is a greenhouse gas and contributes to global warming and climate change; air and water pollution.
Answer:
milk production used to create much more pollution.
Explanation:
When the antibiotic valinomycin is added to actively respiring mitochondria, several things happen: the yield of ATP decreases, the rate of O2 consumption increases, heat is released, and the pH gradient across the inner mitochondrial membrane increases. Does valinomycin act as an uncoupler or as an inhibitor of oxidative phosphorylation? Explain the experimental observations in terms of the antibiotic’s ability to transfer K+ ions across the inner mitochondrial membrane.
Answers
Answer:
Valinomycin produces higher steady state potassium phosphate swelling which can be reversed to give active shrinkage if mersalyl is added to block the Pi−/OH− antiporter. Respiration declines concurrently. Uncouplers accelerate the shrinkage and restore the respiration.
The most dramatic increase in revenue is most likely to occur in the ________ phase of the product life cycle.
Answers
The most dramatic increase in revenue is most likely to occur in the growth phase of the product life cycle.
The growth phase of the product life cycle is where the most dramatic increase in revenue is likely to occur.
Explanation:
The product life cycle consists of four stages: introduction, growth, maturity, and decline. During the growth phase, a product experiences a significant increase in sales and revenue as it gains market acceptance and consumer demand. This is because the product is becoming more well-known and attracting more customers. Companies often invest heavily in marketing and promotion during this phase to further fuel growth.
Conclusion:
In conclusion, the growth phase of the product life cycle is where the most dramatic increase in revenue is likely to occur.
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What is the name of the cellular process depicted in this model?
-
Transcription
Translation
Replication
protein synthesis
Answers
Answer:
C. Replication
Explanation:
The image shows a rain forest ecosystem. The energy from plants, or producers, acts as the starting point of energy in the ecosystem. This energy is transferred to other organisms in the food web. In which two ways is the total amount of energy conserved in the ecosystem?
1.Some energy is transferred to the organisms, and the remaining energy is released into the ecosystem as thermal energy.
2. Bacteria eat the dead bodies of organisms to release the organisms’ stored energy into the atmosphere.
3.Some energy is transferred to the smaller organisms, and the rest is stored in the bodies of larger animals.
4.Some energy is transferred to the organisms, and the rest is released by plants in the form of carbon dioxide.
5.Bacteria eat the dead bodies of organisms, obtain all the energy, and store it in their bodies.
Answers
Answer:
3.Some energy is transferred to the smaller organisms, and the rest is stored in the bodies of larger animals.
1) Glven this decision tree, node 2 represents A) the optimal solution. B) a state of nature. C) an alternative. D) a non-optimal solution. 22) Given this decision tree, what can be said about this decision? A) There are three payoffs. B) There are two alternatives and three states of nature. C) There are eight decisions to be made. D) There are three alternatives and two states of nature.\
Answers
Based on the given options, option B seems to be the most plausible answer for the second question, but a definitive answer cannot be provided without more specific information about the decision tree.
Node 2: Without knowing the specific context or content of node 2, it is not possible to determine whether it represents the optimal solution, a state of nature, an alternative, or a non-optimal solution. The interpretation of node 2 depends on the specific decision tree and the labels assigned to its nodes.
Decision Tree: The structure of a decision tree typically consists of nodes representing decisions or alternatives, and nodes representing states of nature or outcomes. Based on the given options, it is likely that the decision tree has three alternatives (noted as "three payoffs" in option A) and two states of nature (noted as "two alternatives and three states of nature" in option B). However, without more specific information about the decision tree, it is impossible to confirm the exact number of alternatives or states of nature, or the total number of decisions.
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The monosaccharide glucose is stored as glycogen in humans and other vertebrates. Glycogen is a polymer of glucose, and it is usually stored in liver and muscle cells as an energy source. Whenever a human body needs energy, glycogen is broken down via hydrolysis to release glucose that cells can absorb through their cell membranes.
Which argument is supported by these facts occurring in humans and other vertebrates?
A)Glucose’s small size allows it to be transported through cell membranes, which demonstrates that its size is related to its function.
B) Glucose is soluble in water which allows it to be transported through cell membranes, which demonstrate that its solubility is related to its function.
C) Glucose is an energy source because of its large proportion of carbon atoms, which demonstrates that its composition is related to its function.
D) Glucose is quickly broken down by liver and muscle cells to provide energy, which demonstrates that its type of chemical bonds is related to its function.
Answers
Answer:
Glucose is quickly broken down by liver and muscle cells to provide energy, which demonstrates that its type of chemical bonds is related to its function.
A protein has the following sequence: ser-his-thr-tyr. What component of protein structure is this?
Answers
The protein with the linear chain sequence ser-his-thr-tyr represents the primary structure of the protein.
Proteins are the biomolecules that are made up of amino acids as the monomers. Proteins are the most essential biomolecules as they are involved in all the processes of the living organisms. They have structural, enzymatic and various other roles.
The proteins is made up of four levels of structures: primary, secondary, tertiary and quaternary. Primary structure is the one where the proteins exists as a linear chain of amino acids linked together by peptide bond. The primary structure is most essential as it decides the fate of further structures and also the function of the protein.
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1. Why don't most people know how to start a fire without matches
Answers
Which mutated mRNA codon would most likely lead to a change in the expression of the protein
Answers
Answer:
It’s 3
Explanation:
Sorry for being so late mate
Answer: 3
Explanation: i took the test
Exposure to a harmful substance in the first 6 weeks of embryonic development is most likely to have an effect on_______.
Answers
Answer:
Embryo/ fetus in self
Explanation:
A scientist is examining a pedigree that includes several generations of an organism with XX/XY chromosome sex determination.
Which pattern of inheritance would support the hypothesis that the trait being studied is a recessive sex-linked trait found on the X chromosome?
B
A. The trait is only expressed in males who have a father with the trait. The trait is expressed in half of the female organisms and all of the
male organisms.
C. The trait is mostly expressed in males who have a maternal grandfather with
the trait.
D.
The trait is mostly expressed in females who have a paternal grandmother with the trait.
Answers
Answer:
C. The trait is mostly expressed in males who have a maternal grandfather with the trait.
Explanation:
A pedigree chart displays a family tree and shows the members of the family who are affected by a genetic trait.
Plant bodies can respond to changes in their environmental conditions. How does a plant regulate water in its body?
A by growing toward a light source
B by photosynthesizing more energy
C through the opening and closing of stomata
D through wilting and dropping leaves
Answers
The correct option is C; Through the opening and closing of stomata , located on the leaves' surfaces, are involved in regulating gas interchange and water release. Plants regulate water by opening and closing stomata.
Stomata are small pores placed in the leafs' surfaces, whose opening is regulated by two guard cells surrounding them.
These pores are involved in gas interchange -letting CO₂ get into the plant, and O₂ leave it- and the transpiration process -expelling water through transpiration-.
Guard cells can expand or contract according to the plants' needs, causing the stomata to open or close.
Stomata opening and closure depend on water and CO₂ concentration inside the plant.
· If the plant is dehydrated, stomata close. If it is not dehydrated, it opens.
· If CO₂ levels are too low, stomata open to gain it.
So, stomata affect photosynthesis by controlling gas interchange -CO₂ and O₂- and water release -transpiration-.
Water balance:
· Stomata also regulate water vapor flow through transpiration.
· By limiting its exit, stomata allow more water molecules to be available for light reaction processes when the plant is dehydrated.
According to this information, plants regulate water in their bodies by opening and closing stomata.
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For crops not listed on the label there is a plant-back interval of
Answers
The plant-back interval for crops not listed on the label varies depending on the herbicide used and the specific crop in question. It is important to refer to the herbicide label for specific instructions.
What is the plant-back interval for crops that are not listed on the herbicide label?Herbicide labels provide information on the specific crops for which the herbicide is intended and the recommended application rates and timings.
In addition, the label also provides information on the plant-back interval, which is the amount of time that must elapse between herbicide application and planting a new crop in the same field.
The plant-back interval is typically based on the length of time required for the herbicide to break down in the soil to a level that is safe for the new crop to grow.
The length of time required for this to occur varies depending on the herbicide used and the specific crop in question.
It is important to follow the plant-back interval recommendations on the herbicide label to avoid crop injury or loss. Applying a herbicide too close to planting can result in reduced crop growth, yield loss.
Additionally, some herbicides may persist in the soil for longer periods of time and may require longer plant-back intervals to ensure safe crop growth.
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A bacterial species differs from a species of eukaryotic organisms in that a bacterial species.
Answers
The way in which a bacterial species differs from a eukaryotic species is because bacteria is a population of cells with similar characteristics.
Bacteria- Microorganisms that are unicellular, capable of autonomous reproduction, and generally free-living are known as bacteria. In nature, bacteria are found everywhere. The foundation of all life on earth, they are architecturally basic but functionally sophisticated creatures.
Eukaryotic Organism- Every creature or cell with an easily identifiable nucleus. The nucleus of a eukaryotic cell, which houses the very well chromosomes (bodies holding the genetic material), is surrounded by a nuclear membrane. For Example, Epithelial cell, WBC, yeast.
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