Explanation:
single neuron, or nerve cell, can do a lot! It can maintain a resting potential—voltage across the membrane. It can fire nerve impulses, or action potentials. And it can carry out the metabolic processes required to stay alive.
A neuron’s signaling, however, is much more exciting—no pun intended!—when we consider its interactions with other neurons. Individual neurons make connections to target neurons and stimulate or inhibit their activity, forming circuits that can process incoming information and carry out a response.
How do neurons "talk" to one another? The action happens at the synapse, the point of communication between two neurons or between a neuron and a target cell, like a muscle or a gland. At the synapse, the firing of an action potential in one neuron—the presynaptic, or sending, neuron—causes the transmission of a signal to another neuron—the postsynaptic, or receiving, neuron—making the postsynaptic neuron either more or less likely to fire its own action potential.
Schematic of synaptic transmission. An action potential travels down the axon of the pre-synaptic—sending—cell and arrives at the axon terminal. The axon terminal is adjacent to the dendrite of the post-synaptic—receiving—cell. This spot of close connection between axon and dendrite is the synapse.
Schematic of synaptic transmission. An action potential travels down the axon of the pre-synaptic—sending—cell and arrives at the axon terminal. The axon terminal is adjacent to the dendrite of the post-synaptic—receiving—cell. This spot of close connection between axon and dendrite is the synapse.
In this article, we'll take a closer look at the synapse and the mechanisms neurons use to send signals across it. To get the most out of this article, you may want to learn about neuron structure and action potentials first.
Electrical or chemical transmission?
At the end of the 19th and beginning of the 20th century, there was a lot of controversy about whether synaptic transmission was electrical or chemical.
Some people thought that signaling across a synapse involved the flow of ions directly from one neuron into another—electrical transmission.
Other people thought it depended on the release of a chemical from one neuron, causing a response in the receiving neuron—chemical transmission.
We now know that synaptic transmission can be either electrical or chemical—in some cases, both at the same synapse!
Chemical transmission is more common, and more complicated, than electrical transmission. So, let's take a look at chemical transmission first.
Overview of transmission at chemical synapses
Chemical transmission involves release of chemical messengers known as neurotransmitters. Neurotransmitters carry information from the pre-synaptic—sending—neuron to the post-synaptic—receiving—cell.
As you may remember from the article on neuron structure and function, synapses are usually formed between nerve terminals—axon terminals—on the sending neuron and the cell body or dendrites of the receiving neuron.
Schematic of synaptic transmission. An action potential travels down the axon of the presynaptic—sending—cell and arrives at multiple axon terminals branching off from the axon. The axon terminal is adjacent to the dendrite of the postsynaptic—receiving—cell. This spot of close connection between axon and dendrite is the synapse.
As a basketball coach, determine which sensory input you would focus training your athletes in with reference to
the data. As a scientist, explain how the athletes' eyes, ears, and muscles are communicating within the nervous
system to react during a play using at least 4 vocabulary words to explain the outcome of the data.
Vocabulary
-Axon
-Cell Body
-Central Nervous System
-Dendrite
-Peripheral Nervous System
The somatic nervous system is also a part of the peripheral nervous system. One of its roles is to relay information from the eyes, ears, skin and muscle to the central nervous system (brain and spinal cord).The motor neurons release a chemical, which is picked up by the muscle fibre. This tells the muscle fibre to contract, which makes the muscles move. Neurons carry messages from the brain via the spinal cord. These messages are carried to the muscles which tell the muscle fibre to contract, which makes the muscles move.
What is the function of our central nervous system?The Central Nervous System is made up of the brain and spinal cord. We can say that it is located inside the axial skeleton, even though some nerves penetrate the skull or the vertebral column.
With this information, we can conclude that The central nervous system (CNS) is made up of several types of cells and tissues: Neurons are the most important cells in the brain. They are responsible for receiving and transmitting stimuli from the internal and external environment, enabling the body to perform appropriate actions and responses.
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Why had the US and USSR worked well together before 1945?
A. The Soviet Union had pretended to be capitalist until 1945
B. The Communists did not take over until after the war
C. When Joseph Stalin took over, the relationship changed
D. Cooperation was necessary to fight Germany and Japan
Answer:D
Explanation:
Laboratory Analysis:
Body: A single stem emerging from underground rhizome bearing needle-like leaves.
Size: 18 cm
Chromosomal Analysis: Plant body is diploid—chromosome number of 68.
Lignin test: Positive
Cuticle: Present
Leaves: Present—small, possessing 1 unbranched vein.
Roots: Present (fork at tips); contains vascular tissue.
Stem: Present (contain vascular tissue); some bearing sporangia
1. The organism would traditionally be classified into which Phylum?
a. Hepatophyta
b. Cycadophyta
c. Ginkophyta
d. Lycopodiophyta
e. Anthophyta
2. This organism is thought to be more closely related to members of which other phylum?
a. Bryophyta
b. Gnetophyta
c. Coniferophyta
d. Cycadophyta
e. Pteridophyta
From the laboratory analysis performed it can be inferred that the organism belongs to Phylum Lycophyte and the organism is closely-related related to Pteridophyte. Thus, correct options are D (lycopod) and E (Pteridophyte).
What are Lycophytes?Lycophytes are the vascularized plants, these have well-defined vascular tissue for the conduction of substances in the plant body.
Lycopods are small, green, leafy plants which have spores but no flowers. They are a little like mosses. The stems are short, vertically oriented, 2- or 3-lobed, and have secondary growth. The elongate, linear, ligulate leaves are borne in a dense terminal, spirally arranged cluster, and range in size from 5–50 cm.
The plants are also found to produce Lignin although it is restricted to angiosperms but it is present in lycopods. Therefore, correct options are D (lycopod) and E (Pteridophyte).
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A red blood cell placed in distilled water will swell due to the transport of —
Answer: osmosis
Explanation:
What earths system are involved in the tomato plant hornworm relationship
The association between a tomato plant and a hornworm is known as parasitism.
Define parasitism.The hornworm caterpillar and tomato plant have a parasitic relationship because parasitism is a type of symbiotic relationship in which one organism benefits from the other while the other suffers. We are aware that hornworm caterpillars consume tomato crops by feeding on leaves. Therefore, the tomato plant is damaged while receiving nutrients from it. The tomato plant's edible vegetative portion serves as the system's input, and the hornworm caterpillar's transformation into a moth serves as the system's output.
All cowbird species and most cuckoo species engage in brood parasitism, a separate type of parasitism. Instead of making their own nests, these birds lay their eggs in those of other species and leave them there in the hopes that the adult birds of those other species will raise the abandoned young as their own.
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The question you are looking for:
How might you model the relationship between a tomato plant and the hornworm caterpillar?
Which of the following types of models is generally used to predict long-term events?
a. idea model
b. physical model
C. computer model
d. none of the above
Please select the best answer from the choices provided
5) Meerkats live together in groups called "Mobs." What kind of adaptation is this?
Meerkats inhabit huge underground tunnels in groups of 20–50 members of their extended family in groups called "mobs".
The female is the more powerful member of the alpha pair that controls these mobs. The majority of the group members are either the alpha pair's offspring or siblings.Meerkats are better able to survive when they live in communities. Adults alternately serve as the sentry or lookout during the day so that others can forage unafraid. A tall rock, termite mound, or shrub is scaled by the sentry, who then stands upright on two legs. He or she will use a specific call to signal the start of their guard duty. The sentry will bark or whistle an alarm if they notice a predator. The meerkats will flee to the closest hole, known as a bolt hole, if the sentry sounds the alert in anticipation of a predator. A meerkat mob may also stand together to appear larger and act fierce to frighten away the predator. They may even stir up dust to create concealment.Hence, it is an adaptation to survive.
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HELP ME PLS
Think about the role of both biotic and abiotic factors within an ecosystem.
Describe a scenario in which one abiotic or biotic factor is added or removed from an ecosystem.
Explain the possible side effects on that ecosystem.
Be sure to –Address the prompt, provide support, and conclude your thoughts.
Answer:
A fish is a biotic factor and water that the fish lives in is a biotic factor if the water is removed all the fish will die, anything that relies on the fish to survive will decrease in population.
Explanation:
suppose you were to fly from chicago to charleston. what landform regions would you cross? how would the land change?
If you give a link or spam you will be reported.
Some of the landform regions that exist between Chicago and Charleston are:
the Blue Ridge, the Piedmont, the Sand Hills, the Inner Coastal Plain, the Outer Coastal Plain, the Coastal Zone, etcWith this in mind, the way the land would change as you make this journey from Chicago to Charleston would be a change from low hills to higher hills as Charleston is known for higher hills.
What is a Landform?This refers to the natural land feature on the solid surface of the Earth
Hence, we can see that Some of the landform regions that exist between Chicago and Charleston are:
the Blue Ridge, the Piedmont, the Sand Hills, the Inner Coastal Plain, the Outer Coastal Plain, the Coastal Zone, etcWith this in mind, the way the land would change as you make this journey from Chicago to Charleston would be a change from low hills to higher hills as Charleston is known for higher hills.
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another word for selectively permeable?
Answer:
semipermeable membrane.Answer:
tom asked what inspired you?
What are the individual ion contributions to the resting membrane potential of the cardiac pacemaker cells? Select all that apply.
The individual ion contributions to the resting membrane potential of the cardiac pacemaker cells include the following:
Greater concentration of sodium outside the cell.Greater concentration of potassium inside the cell.Calcium gradient with more calcium outside the cell.What is Resting membrane potential?This is defined as the potential of a cell when it is at a state of rest or the difference between the electric potential in the intracellular and extracellular matrices of the cell when there is no excitation.
Some ions which contribute to the membrane potential of cells include the following:
Na+K+Ca++ etc.In the resting membrane potential of the cardiac pacemaker cells, the concentration of K+ is higher inside the cell than outside while ions such as Na+ and Ca++ have higher concentrations outside than inside the cell.
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is there a word that includes organism, ecosystem, population, community
Answer:
No
Explanation:
Well no there is not a word for all those words but those words are the different levels of ecology include- organisms, communities, population and ecosystem.
Part F: Create and Deliver Your Presentation Use your outline and the materials you've collected to create your presentation. It should contain 15 to 20 slides. Be sure to proofread and revise your writing to catch any errors in grammar, spelling, logic, or cohesion e. Remember that you must add speaker's notes as well as a works cited page at the end. Follow your teacher's instructions for delivering your presentation. Your teacher may ask you to record the presentation in the presentation software. Or you may be asked to present it to a live audience. Be sure to rehearse your presentation before you present or record it. Make sure you complete the presentation within the time allotted. Speak audibly and articulate your words clearly. Maintain eye contact with your audience or the camera throughout the presentation. Submit your presentation to your teacher along with this activity.
It establishes the general tone of your presentation; the opening is the most crucial section. Its main goal is to grab the audience's attention, usually within the primary 15 seconds. Before giving a presentation, outline your goals intimately, mastering and learning your topic. Creating the plan and considering the story. Ensure to plan and practice your oral presentation. During the presentation, act naturally. Connect together with your audience by demonstrating your passion. Give some thought to what your audience needs. Keep it simple, concentrate to your Main Point. Make eye contact together with your audience and smile. Start out strong. Confine mind the 10-20-30 Slideshow rule.
Deliver your presentation in front of an audience if your teacher requests it. Make certain to rehearse your presentation before you deliver it and ensure that you complete it within the time limits (5–10 minutes). When presenting, speak clearly and maintain eye contact together with your audience. Record your presentation if your teacher can't attend. PowerPoint enables you to record a video. Submit the finished video to your teacher along with this activity.
The opening, middle, and conclusions should be the three key components of your presentation. Presentation's main body should have your essential message weakened into three elements, each of which should be expanded into three sub-points. Valid information is often found in good presentations. Each bit of information has been extensively fact-checked and is always accurate.
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Cardiac cells are the main type of cells in the heart. Cardiac cells combine
to form the next more complex level of organization, called
Answer:
the cellular network in the heart.
Explanation:
Cardiac muscle cells form a highly branched cellular network in the heart.
Match these items. Match the items in the left column to the items in the right column. 1. capital good factors derived from nature that are used to achieve a goal 2. human capital goods that are made and used to make other goods and services 3. human resource quality of labor resources 4. natural resource factors used to achieve a goal 5. productive resource quantity and quality of human effort used for production of goods and services
Match these items. Match the items in the left column to the items in the right column.
1. capital good =-----> 4 )factors used to achieve a goal
2. human capital----> 3) quality of labor resources
3. human resource -----> 2) goods that are made and used to make other goods and services
4. natural resource ----> 1)factors derived from nature that are used to achieve a goal
5. productive resource --- 5)quantity and quality of human effort used for the production of goods and services
services
This is further explained below.
What is human capital?Generally, Social scientists have used the term "human capital" to refer to the personal qualities that are seen as being beneficial to the manufacturing process.
In conclusion, To match each item you most compare there relationship , and see if it tallies subjectively
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ECOLOGIST
DEFINITION
Answer:
An ecologist is a scientist who studies ecosystems
Explanation:
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Using your understanding of the function of chloroplasts and specialized cells, infer why plant root cells lack chloroplasts.
(1 point)
© Root cells have two central vacuoles.
O Root cells have many mitochondria.
O Roots require fewer nutrients.
O Roots are underground and are not exposed to sunlight.
Pick an organism in the list above and describe how one of its structures allows it to survive in its environment. (1 point)
Think about how one part of the organism's body is designed to do a specific job well.
Sun,salmon,maple trees, bears, plankton, whales, grass, cows, humans, shrimp, caterpillars, finches (small birds), hawks.
Behaviorally salmon will prevent overhydration (in freshwater) by consuming much less or no water, and having diluted urine (extra water than salt). salmon fry changes their pores and skin shade.
They increase camouflage markings referred to as Parr marks, which are dark bars throughout their bodies. The combination of light and dark helps them blend into the shadows on the movement- or lakebed so they're less seen to predators.
Maples trees develop quality in complete daylight, however, can develop in a spot with some color. these coloration bushes are adaptable to maximum soils, however, opt for a relatively wet but well-drained soil.
maximum bears have an effective survival solution: hibernation, a bodily nation in which the heart price, frame temperature, metabolism, and respiratory is diminished.
Phytoplankton has chlorophyll to seize daylight, and they use photosynthesis to turn it into chemical energy. They consume carbon dioxide and release oxygen. All phytoplankton photosynthesize, however, a few get additional electricity via ingesting different organisms.
Whales' bodies are particularly tailored to keep oxygen in their blood and muscle mass, instead of keeping it in their lungs as people do. Whales have rather high tiers of proteins known as hemoglobin and myoglobin, which save oxygen within the blood and muscular tissues.
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Shrimp
Pleopods or swimmerets are the names of the appendages, which are utilised for activities other than swimming. Others contain gills for breathing, while other species of shrimp utilise the first pair or two for insemination. Some shrimp species use them for brooding eggs.
The thorax and the head are the two halves of their bodies. The two halves are joined by a small abdomen and the cephalothorax. The carapace, which serves as the body's physical defence, is a tough covering. Together with its gills, the shrimp's mouth functions.
The gills let it to obtain oxygen from the surrounding waters while being protected by the hard external shell. Its strong shell also sprouts its legs, eyes, and rostrum. Shrimp have a pointed beak or snout, known as the rostrum, that protrudes from the top of their bodies to defend them from predators. Additionally, this beak acts as a stabiliser when swimming backwards and forwards.
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can you tell me what acne medication is commonly prescribed to teenagers but also appeared on the list of drugs prohibited during the first trimester of pregnancy
What do these organic compounds have in common?
methane (CH4 )
butane (C4H10)
Covalently linked strands of carbon atoms with hydrogen atoms attached constitute the basis of many organic molecules (a hydrocarbon backbone). This indicates that the existence of carbon and hydrogen atoms is a property shared by all organic molecules.
What common characteristics define organic?Organic substances are substances made of carbon. In addition to having hydrogen and carbon atoms, they can also have oxygen, nitrogen, or halogen atoms.
All life on Earth is made up of four chemical components. Organic compound, any of a large class of chemical compounds in which one or more carbon atoms are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen. Organic molecules contain carbon and hydrogen chemically linked to one another in long chains, with carbon serving as the backbone and hydrogen atoms attached to the carbon atoms.
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How does ATP release energy that is utilized by living cells for
ATP release energy that is utilized by living cells by by breaking a bond within an ATP molecule.
What is ATP?Thus is referred to as Adenosine triphosphate and is regarded as the energy currency of the cell. It is synthesized by ATP synthase which catalyzes its the reaction of ADP with an inorganic phosphate.
ATP release energy that is utilized by living cells through the process which is referred to as phosphorylation in which the phosphate group is transferred to another molecule by breaking a bod within the ATP molecule through special enzymes.
The energy released from the ATP is then used to power different activities which requires it in the body system of living organisms. This is therefore the reason why option B was chosen as the most appropriate choice.
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The options are:
a. by being exposed to body heat
b. by breaking a bond within an atp molecule.
c. by being expose to sunlight.
d. by adding more phosphate group to itself.
Janice has been up now three nights in a row. Her 6-year-old son, Eric, starts screaming in the middle of the night. When she goes to his room, he is sitting up with his eyes wide open crying but is not responsive to her questions. It takes 20 minutes or more to wake him and then he seems just fine. What is Eric experiencing? What stage of sleep is he in when the phenomenon occurs? What is likely causing this problem and is there any possible resolution?
Answer:
Her child is probably experiencing night terrors. Her child probably has experienced something that has left him with trauma.
Explanation:
1, what do the numbers 3 and 4 refer to in 3NH4
三三三三三
The 3 in the 3NH4 denotes the 3 molecules of NH3 are there to balance the equation and 4 in the 3NH4 denotes that 4 molecules of hydrogen are bonded with one nitrogen atom.
Ammonium cation is a positively charged polyatomic ion with the formula NH4+ which is formed by protonation of ammonia NH3.
The lone pair of N forms bond with the H+ proton hence all the four bonds formed are polar covalent bond. It forms a tetrahedral structure.
The ammonium ion is mildly acidic in nature with conjugated base as Ammonia.
It is produced as a waste product by the metabolism of animals which is excreted out by our excretion system.
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what will happen if we had life without cell walls
Answer:
without cell wall they will be damaged. Cell also acts as permeable membrane for solvents and ions which cannot happen when cell wall is damaged.
Explanation:
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provide examples to demonstrate the roles of perspective and situational awareness in the occurrence of the fundamental attribution error
Some examples of how the roles of perspective and situational awareness aid in the occurrence of the fundamental attribution error are:
When a boss chastises an employee for arriving late for work but comes late himselfWhen a teacher breaks a classroom rule, but punishes a student that breaks the same rule, etc.It is clear to see the role of perspective and situational awareness aid in the occurrence of the fundamental attribution error as this has to do with the perception of environmental elements as they relate to time or space
What is a fundamental attribution error?This refers to an individual's tendency to attribute another's actions to their character or personality.
Hence, we can see that Some examples of how the roles of perspective and situational awareness aid in the occurrence of the fundamental attribution error are:
When a boss chastises an employee for arriving late for work but comes late himselfWhen a teacher breaks a classroom rule, but punishes a student that breaks the same rule, etc.It is clear to see the role of perspective and situational awareness aid in the occurrence of the fundamental attribution error as this has to do with the perception of environmental elements as they relate to time or space
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f three eggs are placed in samples of water with different amounts of sugar, then each will absorb a different amount of water over 24 hours.
In this question, the amount of water absorbed by an egg completely depends on the amount of sugar in which it placed. The amount of sugar stands alone and cannot be altered by other variables hence it is classified as an independent variable.
While the amount of water they absorbed can not stands alone and would be altered by variable like the amount of sugar. Hence, it is classified as the dependent variable.
Therefore, in this example, the different amount of sugar is categorized under the independent variable while the amount of water gets absorbed is categorized under the dependent variable.
Why don’t the two daughter cells made in mitosis have identical cytoplasm
Answer:
The cytoplasm is not identical within each of the daughter cells because the division of it is random.
Explanation:
I want the answer please
Answer:
Base is the correct answer .
How does scientists use information to make predictions in your own words and in a generalized manner?
Scientists create a broad principle or explanation to help anticipate future events using their understanding of past occurrences. The term "hypothesis" refers to the overall idea. Inductive reasoning is the category of reasoning that is involved (deriving a generalization from specific details).
How do scientist make predictions?A scientific prediction suggests the evidence that is in line with the hypothesis and can thus be used to the results of both current and previous experiments. As a result, even though these trials were carried out more than 200 years ago, we can make predictions about how they will turn out.
For the scientist, predictions serve as a point of reference. If predictions come true, the theory has been validated by the scientist. The hypothesis is disproved if the predictions are not confirmed. In either case, the scientist now has more understanding of the process being investigated.
Therefore, scientists create a broad principle or explanation to help anticipate future events using their understanding of past occurrences. The term "hypothesis" refers to the overall idea. Inductive reasoning is the category of reasoning that is involved (deriving a generalization from specific details).
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What has mass and takes up space? Question 3 options: weight volume space matter
