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Related Questions
A postsynaptic neuron has an RMP of -70mV and a typical threshold of -55mV. It has three presynaptic inputs-from neurons X, Y, and Z. Stimulation of
neuron X causes the postsynaptic neuron to depolarize by 0.5 mV. When X and Y are stimulated simultaneously, the postsynaptic neuron depolarizes by
1 mV, If X fires 10 times and Y fires 10 times the result will be …
Multiple Choice
a subthreshold summation.
presynaptic inhibition.
threshold is reached and an AP is fired.
many APs are fired.
the membrane depolarizes.
Answers
When X fires 10 times and Y fires 10 times, the result will be a subthreshold summation.
Subthreshold summation happens when two or more presynaptic inputs that are sub-threshold (i.e., they cannot create an action potential) combine their effects on the postsynaptic neuron.
Here, the postsynaptic neuron has an RMP of -70mV and a typical threshold of -55mV. When neuron X is stimulated, it depolarizes by 0.5 mV.
When X and Y are stimulated simultaneously, the postsynaptic neuron depolarizes by 1 mV, which is sub-threshold (below -55mV).
Therefore, when X fires 10 times and Y fires 10 times, the postsynaptic neuron will experience subthreshold summation and no action potential will be fired.
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what are three abiotic and biotic factors that can kill mosquitoes
Answers
Biotic could be humans, bats, birds, a mosquito repelling plant like mint or lavender.
Discuss the definition of bioavailability relative to ecotoxicology and pharmacology.
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Bioavailability in both ecotoxicology and pharmacology is concerned with the availability and accessibility of substances to organisms or target sites, considering various factors that influence their absorption, distribution, and elimination.
Bioavailability refers to the proportion of a substance that is available to have an effect on an organism, either in ecotoxicology or pharmacology. In ecotoxicology, bioavailability relates to the uptake and availability of contaminants in the environment to organisms.It considers the processes that affect the ability of organisms to absorb, distribute, metabolize, and excrete contaminants. In pharmacology, bioavailability refers to the extent and rate at which a drug reaches its target site and is available to produce a therapeutic effect. It involves factors such as drug absorption, distribution, metabolism, and elimination.For more questions on Bioavailability
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What are the organelles that transport, store and recycle resources within the cell?
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If helped mark me the brainiest. Need more clear explanation comment.
Can environmental factors influence the expression of traits?
Answers
Answer:
Environmental Factors Interact with Genes
Environmental factors often influence traits independently of genes. But not always. Sometimes the environment changes a gene—either its DNA sequence or its activity level. Either of these effects can change the proteins that are made from a gene, which in turn affects traits.
The ________ is the inner ear sensory receptor for sound that transduces sound vibrations into neural impulses.
Answers
Answer: The Cochlea is the inner ear sensory receptor for the sound that transduces sound vibrations into neural impulses.
Explanation:
Which pH represents a solution with the highest concentration of OH-? ph 10 pH 2 ph 5
Answers
Answer:
A pH of 10 represents a solution with the highest concentration of hydroxide ions (OH-).
Explanation:
The pH scale is used to measure the acidity or basicity of a solution, with a pH of 7 being neutral. A pH less than 7 is considered acidic and a pH greater than 7 is considered basic. The pH is calculated using the negative logarithm of the hydrogen ion concentration (H+). So, a pH of 10 means that the H+ concentration is 10^-10 moles/L, which is very low. Therefore, the solution is very basic, and has a high concentration of hydroxide ions (OH-).
Need help asap!!!!!!!!!!!
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Places where water is stored on Earth and their respective phases:
Oceans and seas - LiquidGlaciers and ice caps - SolidRivers, lakes, and ponds - LiquidGroundwater - LiquidAtmosphere - GasWhat is the water cycle?The water cycle, also known as the hydrological cycle, is the continuous movement of water on, above, and below the surface of the Earth.
It describes the process of how water evaporates from the surface of the Earth, rises into the atmosphere, cools and condenses into clouds, and falls back to the surface as precipitation.
Seven processes involved in the water cycle and their definitions:
Evaporation - The process by which liquid water changes into water vapor, which is a gas, due to heat energy from the sun.Transpiration - The process by which plants release water vapor into the atmosphere through their leaves.Condensation - The process by which water vapor changes into liquid water, forming clouds in the atmosphere.Precipitation - The process by which water falls from the atmosphere to the surface of the Earth in the form of rain, snow, sleet, or hail.Infiltration - The process by which water enters the soil and percolates downward to become groundwater.Runoff - The process by which water flows over the surface of the Earth and into streams, rivers, and oceans.Sublimation - The process by which ice changes directly into water vapor, without passing through the liquid phase. This occurs in high altitude areas with low humidity.Learn more about the water cycle at: https://brainly.com/question/25796102
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Was a switch made at the hospital? Explain your reasoning.
Answers
No, there was not a switch made at the hospital. As explained above, there is no way that Michael and Danielle could have had a child with Type O blood, but it is possible for Earnest andDenise to have a child with Type O blood. Even though Earnest has Type A blood and Denise hasType B blood, it is possible that they each contain one i allele, Earnest could have the IAi combination and Denise could have the IBi combination. If each of them gave their i allele to their child, then the child would end up with Type O blood.
What year were multistage
rockets proposed?
A. 1901
B. 1903
C. 1905
D. 1906
Answers
Answer:
1901
Explanation:
Which of the following characteristics of living things best explains why birds fly south for the winter?
Answers
Answer:
In areas that have cold winters, some common bird foods, such as nectar and insects, may not be available year-round. Birds that eat those foods must fly south to find food to survive. Other birds that eat seeds or bugs that live under tree bark often hang around, since they can continue to find food all winter long.
Type the correct answer in the box. Spell all words correctly.
What is a close relationship between two organisms that live together called?
The close relationship between two organisms that live together is called
Reset
Next
Answers
Answer:
symbiosis.
Explanation:
The term that you are referring to is symbiosis. (a symbiotic relationship)
Symbiosis is a proximate and often long-term interaction between two or more different biological species.
What does this model represent
Answers
Draw a model showing what would happen if poison blocked our cell ability to make tRNA
Answers
tRNA (transfer RNA) is a type of RNA molecule that plays a crucial role in protein synthesis. It carries amino acids to the ribosome, which is the site of protein synthesis, where the amino acids are joined together to form a protein chain.
If poison were to block our cell's ability to make tRNA, it would disrupt protein synthesis and affect the production of essential proteins in the body. This could lead to a range of symptoms, depending on the proteins that are affected.
For example, if the poison blocked the production of tRNA molecules that carry amino acids required for the formation of enzymes involved in digestion, it could lead to problems with digestion and absorption of nutrients. If the poison blocked the production of tRNA molecules that carry amino acids required for the formation of muscle proteins, it could lead to muscle weakness and atrophy.
In severe cases, such as if the poison blocked the production of tRNA molecules that carry amino acids required for the formation of essential proteins involved in the functioning of vital organs such as the heart or lungs, it could be fatal.
The location of earthquakes, volcanoes, and mid-ocean ridges give evidence of
A.the origin of the universe
B.evolution
C.the extinction of the dinosaurs
D.plate tectonics
Answers
Shredder
Scraper/Grazer
Filter Feeder
Invertebrate Predator
Vertebrate Predator
IIIII
:: Filter water to consume phytoplankton (microalgae) :: Consume leaves and algae and fungi on the leaf surface
:: Consume algae on rocks :: Prey on vertebrates and invertebrates :: Prey on small invertebrates
Match the organism to its proper feeding behavior
Answers
Explanation:
The first organism is a Filter Feeder, which filters water to consume phytoplankton (microalgae).
The second organism is a Scraper/Grazer, which consumes leaves and algae and fungi on the leaf surface.
The third organism is a Shredder, which consumes algae on rocks.
The fourth organism is an Invertebrate Predator, which preys on small invertebrates.
The fifth organism is a Vertebrate Predator, which preys on vertebrates and invertebrates.
Which of the following phrases best summarizes Chapter 13 bankruptcy? a. discharge debt and keep property b. discharge debt and liquidate assets c. reorganize debt and keep property d. reorganize debt and liquidate assets Please select the best answer from the choices provided. A B
Answers
reorganize debt and keep property.
What is Bankruptcy?bankruptcy is a legal process involving an individual or business that is unable to pay off its debts.
The chapter 13 of the Bankruptcy Code allows for the adjustment of debts for a person with regular income and permits the debtor to maintain their property while paying off their debts gradually over a period of time, often three to five years.
A petition is filed, either on behalf of the debtor, which is more often, or on behalf of creditors, which is less frequent, to start the bankruptcy process.
Therefore, reorganize debt and keep property.
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Which of the following is the best way to explain how baking a cake or frying an egg is a chemical change?
Both are changing size and shape.
Heat is changing the texture of both substances.
Heat is being added to both, causing a phase change.
The end products of both cannot be reversed to their original forms.
Answers
Answer:
I believe that the answer is: The end products of both cannot be reversed to their original forms.
Explanation:
I am really sorry if I get it wrong please let me know if I get it wrong
Also if you can take it again it might be: Heat is changing the texture of both substances.
Hope I could help :)
Please help
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the amount of soil is a _____ variable.
A. independent
B. dependent
C. constant
D. temporary
Answers
Answer:
A. independent
Explanation:
How does the endoplasmic reticulum work with the Golgi apparatus and vesicles?
Answers
The collaboration of endoplasmic reticulum, Golgi apparatus and vesicles can be seen when the protein or lipid are released out the cell. The protein and lipid produced in endoplasmic reticulum will be packaged and transported via vesicle and sorted in Golgi apparatus in advance before secreted out.
How do endoplasmic reticulum, Golgi apparatus and vesicle work together?The endomembrane system includes the endoplasmic reticulum (ER), Golgi apparatus, and lysosomes. These organelles work together on protein processing and secretion. The endoplasmic reticulum can either be smooth or rough. The rough endoplasmic reticulum has ribosomes on it, whose function to make protein, while the smooth endoplasmic reticulum doesn't have the ribosomes.
The protein or lipid that made in endoplasmic reticulum will be covered within transport vesicle. Before reaching their final destination, the proteins or lipids within the transport vesicles need to be sorted, processed and packaged in the Golgi apparatus (or Golgi body), a series of flattened stacked pouches. Furthermore, the content which has been sorted from the Golgi body will be packaged in the vesicle. These vesicles fuse with the plasma membrane and release their contents outside the cell.
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Billy is sitting in a chair in class if the action force is the downward push of his way on the chair what is the reaction force
Answers
Answer:
Two forces: Gravity and the Support force that apposes it
Explanation:
:)
Rocks have been found in South America that are very similar in make-up and age to rocks in South
Africa. What might this evidence tell us about the plates under South America and South Africa?
OA. All rocks are the same; they can't be used be evidence for tectonic movement.
B. The rocks were probably formed when South America and Africa were
connected.
a
Oc. The rocks were probably deposited in both places when a tectonic plate broke
up.
D. Rocks are only produced when tectonic plates move against each other and
small pieces break off.
Answers
Answer:
B.
Explanation:
Once we were one big continent, so similarities on coasts of two different continents is evidence of them being once together
Question 23 (2 points)
(06.05 MC)
A red blood cell is in the umbilical vein of a fetus. Where will it flow next, in the proper order? (2 points)
Od
Ductus venosus; right atrium; vena cava
Ductus venosus; vena cava; right atrium
Ductus arteriosus; right ventricle; aorta
Ductus arteriosus; aorta; right ventricle
Answers
A red blood cell in the umbilical vein of a fetus will flow next in the proper order as follows: Ductus venosus; vena cava; right atrium.The ductus venosus is a blood vessel that connects the umbilical vein to the inferior vena cava.
It allows oxygenated blood from the placenta to bypass the liver and enter the systemic circulation of the fetus. The red blood cell will pass through the ductus venosus, which acts as a shunt, directing the oxygenated blood towards the vena cava.
From the vena cava, the blood will enter the right atrium, which is one of the four chambers of the fetal heart. The right atrium receives deoxygenated blood from the body and the oxygenated blood from the umbilical vein.Finally, the blood will leave the right atrium and continue its circulation through the fetal heart, where it will be pumped to the lungs for oxygenation.
However, since the lungs are not fully functional in the womb, the blood is redirected through the foramen ovale and ductus arteriosus to bypass the pulmonary circulation.In summary, the correct order of flow for the red blood cell in the umbilical vein of a fetus is: Ductus venosus; vena cava; right atrium.
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What is the difference between anaerobic respiration in plants and animals? (Atleast 5 points)
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maybe this can help you...
explain how each shows the characteristics of life if it does made of cells
Answers
Answer:
Big Ideas: All living things have certain traits in common: Cellular organization, the ability to reproduce, growth & development, energy use, homeostasis, response to their environment, and the ability to adapt. Living things will exhibit all of these traits
Explanation:
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How would the sudden unavailability of fossil fuels affect your home and the
technologies in your home? Identify and explain three ways.
Answers
It may not be necessary to determine exactly how much fuel your home consumes at any particular period, but it is important to understand what each type of fuel is being used for in your home. These commonly used fuel types are largely combustion fuels; their main functions as energy sources are to provide fire for cooking, and for heating air and water. These are the expected comforts of the modern home. Therefore, if these fuels are being used for boilers, woodstoves, furnaces and hot water heaters, it would be good to determine their basic operating efficiency, since some applications may consume more of these fuels than others.
Once you have identified where you are using these fuels (that is, which applications are using these fuels), you can then assess your bills; whether monthly, seasonally or annually. Then you will be able to grasp the amount of fossil energy that you are consuming and which type of fossil fuel takes the largest piece of the pie, with the largest consumption total.
Click the statement that best describes the role of each element in living organisms.
Carbon
Oxygen
Hydrogen
DONE
Intro
D
Answers
Carbon: The most prevalent element in terms of mass, carbon makes up 60% of the atoms in living things. It is a versatile element and the building block of all living things.
Oxygen: The most prevalent element by mass, oxygen makes up 60% of the atoms in living things and is the building block of all living things.
Hydrogen: The most prevalent element by mass, hydrogen makes up 60% of the atoms in living things. It is a versatile element and the building block of all living things.
Only carbon, hydrogen, and oxygen make up the organic molecules known as carbohydrates. Out of the four main categories of organic compounds, they are the most prevalent.
What about carbon?Group 14 of the periodic table's nonmetallic chemical elements includes carbon (C). Despite being extensively spread, carbon is not very abundant in nature; it only makes up around 0.025 percent of the Earth's crust, but it is responsible for more compounds than all the other elements put together. Carbon is a component of all organic substances, including proteins, carbohydrates, and lipids, and all plant and animal cells are made up of these components and their polymers. Numerous straightforward molecules are joined together in precise ways to form polymers, which are macromolecules. Most industries in the world use carbon in some capacity. Coal, methane gas, and crude oil are all utilised as fuels (which is used to make gasoline). It is used to create a variety of products, including plastic and steel alloys (a combination of carbon and iron). The majority of the carbon on Earth is preserved in rocks and sediments, with the remainder found in the ocean, atmosphere, and living things. These serve as the carbon cycle's reservoirs or sinks.Learn more about carbon here:
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6. In which one of the following situations would you observe signs of fermentation first? a. a flask with dried yeast only in a warm room (20 °C) b. a flask with dried yeast and water in a warm room (20 °C) c. a flask with dried yeast, water and sugar in a refrigerator (4 °C) d. a flask with dried yeast, water and sugar in a warm room (20 °C)
Answers
The suggested hypothesis is that fermentation may be to blame for the rise in lactate levels.
What are the different capacities a bacteria will have?Bacteria with the capacity to utilize a variety of carbohydrate sources create lactic acid through the fermentation process. The primary bacteria utilised to create lactic acid are lactic acid bacteria, and among these, Lactobacillus spp. have demonstrated intriguing fermentation abilities.
Lactic acid fermentation was a consequence of a deficiency in oxygen inside the muscle cells. This is because oxygen is required by the cell as a terminal electron acceptor in order to make ATP.
Therefore, The suggested hypothesis is that fermentation may be to blame for the rise in lactate levels.
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The_ of the cell directs cell activity and acts like the control center.
Answers
Answer:
Nucleus
Explanation:
The Nucleus is the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
Answer:
nucleous
Explanation:
itacts like the control center
Lab Report for Digestive and Excretory
Answers
The digestive and excretory system are two interconnected physiological systems responsible for breaking down food and eliminating waste products from the body.
In this lab report, we examined the process of digestion and excretion in a variety of organisms, including humans, frogs, and worms. Through a series of experiments and observations, we were able to identify the key components and processes involved in each system, such as the role of enzymes in digestion and the function of different organs in excretion.
We also investigated the effects of various factors, such as diet and hydration, on the efficiency of these systems. Overall, this lab provided valuable insight into the complex and essential processes of digestion and excretion in living organisms.
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