What type of pathway is utilized to block movement by the Frz filaments?
Answers
The Frz filaments utilize a Type IV pili-dependent pathway to block movement.
This pathway involves the extension and retraction of the pili to create a physical barrier that prevents cells from moving past each other. Frizzy filaments, also known as intermediate filaments, are a component of the cytoskeleton that provide structural support to cells. They are not involved in blocking movement.
However, myxobacteria use a different type of filament called the Frz filaments to regulate their movement. Frz filaments are made up of a protein called AglZ, and they play a key role in the regulation of cellular movement by controlling the direction of gliding.
Frz filaments are part of a signaling pathway known as the Frz pathway, which involves a series of proteins that interact with the filament to control gliding direction. When Frz filaments are extended in one direction, they signal the cell to move in the opposite direction, allowing myxobacteria to coordinate their movement and travel together in groups.
Overall, the Frz pathway is an important mechanism for regulating the movement of myxobacteria and is essential for their ability to form complex multicellular structures like fruiting bodies.
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Related Questions
Help me please hurry???????????
Answers
Answer:
Compared to the use of many gasoline vehicles with only one person per vehicle, this method of transportation conserves more fossil fuels.
Explanation:
A form of transportation —such as the subway or streetcar— has capacity for many passengers and uses electricity as an energy source. This means fewer people using gasoline-vehicles, which leads to savings in fossil fuels, such as gasoline or diesel.
The decrease in the use of fossil fuels in vehicles has been proposed as an alternative to reduce environmental pollution and its consequences. One alternative is to consider mass transport vehicles that use alternative energy, a sustainable form of transport.
None of the other options are correct, as they involve more or the same use of fossil fuels per person.
Name and explain three different ways micro organisms obtain energy
Answers
Answer:
consume other organisms because they can't perform photosynthesis.
Perform photosynthesis because they have chloroplasts.
Decompose decaying matters because they evolved to do that.
The cubs of spotted hyenas often begin fighting within moments of birth, and often one hyena cub dies. The mother hyena does not interfere. How could such a behavior hav…
The cubs of spotted hyenas often begin fighting within moments of birth, and often one hyena cub dies. The mother hyena does not interfere. How could such a behavior have evolved? For instance:
a. From the winning sibling's point of view, what must (benefit of siblicide) be, relative to (cost of siblicide to favor the evolution of siblicide?
b. From the parent's point of view, what must be, relative to for the parent to watch calmly rather than interfere?
c. In general, when would you expect parents to evolve "tolerance of siblicide" (watching calmly while siblings kill each other without interfering.
Answers
This behavior allows for the strongest offspring to survive and pass on their genes, increasing the chances of future generations' survival.
The behavior of hyena cubs fighting from birth is a result of competition for resources and the need for survival.
From the winning sibling's point of view, the benefit of siblicide would be gaining access to more resources such as food, water, and maternal care. The cost of siblicide would be losing a potential ally or future mate.
From the mother's point of view, the survival of one strong offspring is more important than the survival of multiple weak ones.
Therefore, the parent may watch calmly rather than interfere to ensure the survival of the strongest cub.
In general, parents would evolve "tolerance of siblicide" when resources are limited, and survival is difficult.
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Suppose fish were not able to use the countercurrent exchange system in their gills and instead the system was a concurrent exchange. A concurrent exchange in when both the flow of blood and water occur in the same direction. What would be the most likely effect
Answers
If fish were not able to use the countercurrent exchange system in their gills and instead relied on a concurrent exchange system, the most likely effect would be a decrease in the efficiency of gas exchange.
In the countercurrent exchange system, the flow of water and blood in the gills runs in opposite directions, which maximizes the amount of oxygen that can be extracted from the water. This system ensures that the blood leaving the gills has a higher oxygen concentration than the water entering the gills. In a concurrent exchange system, the flow of water and blood runs in the same direction, which means that the oxygen concentration of the blood leaving the gills would be similar to that of the water entering the gills. As a result, less oxygen would be extracted from the water, leading to a decrease in the efficiency of gas exchange.
In summary, if fish were not able to use the countercurrent exchange system in their gills and instead relied on a concurrent exchange system, the efficiency of gas exchange would likely decrease, which could have negative effects on the survival and health of the fish.
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Correct question is:
Suppose fish were not able to use the countercurrent exchange system in their gills and instead the system was a concurrent exchange. A concurrent exchange in when both the flow of blood and water occur in the same direction. What would be the most likely effect?
A key defining feature of endocrine pathways is that- they elicit rapid and robust changes to the body's physiology the hormones bind to receptors located on the plasma membrane glandular cells of neurons release hormones into the blood all of these options are true
Answers
A key defining feature of endocrine pathways is that they elicit rapid and robust changes to the body's physiology. Endocrine pathways are a vital part of the human body and are responsible for the communication and regulation of body functions. Endocrine pathways have distinct characteristics that distinguish them from other body pathways.
The hormones, which are the chemical signals of endocrine pathways, are released by glandular cells into the bloodstream, from which they reach their target organs or tissues.The hormones bind to specific receptors located on the plasma membrane of their target cells and exert their effects by initiating a cascade of intracellular signaling pathways. The binding of a hormone to its receptor results in changes in gene expression, metabolism, or other physiological processes that are critical to the regulation and homeostasis of the body.
The response to hormone signaling is usually rapid and robust, which allows for quick adaptation to changes in the environment. In conclusion, the answer to the question is that a key defining feature of endocrine pathways is that they elicit rapid and robust changes to the body's physiology.
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describes
wilted
dormant
111
growth
:: Plants change leaf hormones in response to light.
:: Plants undergo transpiration
:: Plants preserve their energy for growth
Answers
Wilted — Plants undergo transpiration
Dormant — Plants preserve their energy for growth
Growth — Plants change leaf hormones in response to light
MARK ME BRAINLIEST PLEASEEE
The diagram to the right represents steps in sexual reproduction.
Which of the following occurs in the step labeled "Z"?
A Fertilization
B. Meiosis
C. Mitosis
D. Translocation
Answers
Answer:
C. Meiosis
Explanation:
both pica and rumination disorder are more common in...
Answers
Both pica and rumination disorder are more common in people who have developmental disabilities or intellectual disabilities than in the general population. What are Pica and Rumination disorder ?Pica is a compulsive eating disorder that involves eating non-food
items such as soil, chalk, and hair. Individuals with developmental disabilities are at greater risk of developing pica. Rumination disorder is a rare condition in which people constantly regurgitate their food and then chew it before swallowing it again. This behavior is not due to a medical condition. Individuals with intellectual disabilities are at a higher risk of developing rumination disorder.
There are two types of are a brief response that summarizes the key points and offers a precise answer to the question asked. On the other hand, are the main a provides a comprehensive are the mainly includes more detail, and usually has more than one point of view.
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which observation suggests that eukaryotes may share a more recent common ancestor with bacteria than with archaea?
Answers
Many eukaryotes metabolism-related genes resemble bacterial genes more so than archaea genes.
Genes from several sources are mixed together in eukaryotic genomes. As a result of their bacterial origin, some are very similar to bacterial genes. They originated in the bacterium that was swallowed by an early Eukaryote and were then transmitted to Eukaryotes where they developed into the mitochondria, an organelle in cells that produces energy. However, research indicated that the conserved genes shared by Bacteria, Archaea, and Eukarya were more comparable than those shared by subgroups of Archaea (TACK). This is in keeping with the archaeal-host hypothesis, according to which the host that gave rise to the Eukaryotic lineage contributed significant genes to the nucleus.
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Explain why the Visking tubing must be washed before it is placed into the boiling tubes.
Answers
Answer:
To release harmful bacteria
What list describes the diet of an omnivore? (3 points)
Mice and rabbits
Rabbits and insects
Fish and insects
Fish and berries
Answers
Answer:
Fish and Berries
Explanation:
This is the most likely answer because mice + rabbits are carnivores rabbits + insects are carnivores and fish and insects are carnivores only. I would assume fish and berries is the best answer, hope this helps.
What if the function of bio molecules in the cell cycle?
Answers
Answer:
Several processes such as energy storage (carbohydrates), catalyzing the biochemical reactions (hormones), storing/transmitting the genetic codes (RNA/DNA), or altering biological and neurological activities (neurotransmitter/hormones).
Explanation:
The biomolecules may involve in several processes such as energy storage (carbohydrates), catalyzing the biochemical reactions (hormones), storing/transmitting the genetic codes (RNA/DNA), or altering biological and neurological activities (neurotransmitter/hormones).
Answer:
The bio molecules may involve in different processes such as energy storage, catalyzing the biochemical reactions, storing and/or transmitting the genetic codes, or altering your brain's activities.
Explanation:
1.- Leo este poema e identifico el tipo de estrofas que lo componen.
Hoy que has vuelto, los dos hemos callado,
y solo nuestros viejos pensamientos
alumbraron la dulce oscuridad
de estar juntos y no decirse nada.
Solo las manos se estrecharon tanto
como rompiendo el hierro de la ausencia.
¡Si una nube eclipsara nuestras vidas!
Deja en mi corazón las voces nuevas,
el asalto clarísimo, presente,
de tu persona sobre los paisajes
que hay en mí para el aire de tu vida
plsss aiudaaaaaaa
Answers
El tipo de estrofas que componen este poema son cuartetos y tercetos.
En los poemas, una estrofa representa una seria de líneas que forman una unidad. Está unidad se puede reconocer porque:
Inicia en mayúscula.Termina con un punto.Además, las estrofas se clasifican de acuerdo a su número de líneas o versos. Esta clasificación incluye:
Pareados: Dos líneas.Tercetos: Tres líneas.Cuartetos: Cuatro líneas.Quintetos: Cinco líneas.De acuerdo a lo anterior, el poema anterior tiene dos cuartetos y un terceto.
Primer cuarteto: Desde "hoy" hasta "nada" (hay 4 líneas).Terceto: Desde "solo" hasta "vidas" (hay 3 líneas)Segundo cuarteto: Desde "Deja" hasta "vida" (hay 4 líneas)Aprenda más en: https://brainly.com/question/25457320
Why does pure water have a neutral pH?
Answers
The reason why Pure water has Neutral pH is that it ALWAYS will have the same the same number of hydrogen ions and hydroxide ions, making it never a negative or a positive. If however, it did have a different balance, it would be no different.
The water will still be neutral no matter what, even if its pH changes (like the 2nd common one, pOH)
A group of similar cells that come together to perform a common function 2 points
is what? *
An Organ system
A Tissue
An Organ
The Matrix
Answers
Answer:
an organ
Explanation:
Sara and Helen have blue eyes like their mother.
Describe how genetic information is passed on from a parent to a child.
GIVING THE BRAINLIEST
Answers
All of the following are true about our human genome, EXCEPT O we share about 98.8% of our genome with chimpanzeesO we are still learning how genes are linked to complex traits and diseasesO genes, or coding segments, make up the vast majority of our genome, O it consists of about three billion base pair.
Answers
Answer:
Genes, or Coding Segments, make up the vast majority of our genome.
Explanation:
While Genes do make up a Genome, they are not alone. It mostly contains DNA and RNA, while genes make up a smaller, less overwhelming portion.
Hope this helps!
- Jorden
Which organism is an animal-like protist?
cilia
dinoflagellates
amoeba
truffle
Answers
Do y’all know any of the answers to these?
Answers
What kind of membrane do chloroplasts have?
Answers
Like mitochondria, chloroplasts are surrounded by 2 membranes. The outer membrane is permeable to small organic molecules, whereas the inner membrane is less permeable and studded with transport proteins.
Do animal cells always have to be placed in isotonic solutions? Why?
Answers
Explanation:
because If a cell is placed in an isotonic solution, there will be no net flow of water into or out of the cell, and the cell's volume will remain stable
A small size is advantageous for marine organisms because it ________. increases the surface area to volume ratio that in turn reduces frictional resistance to sinking increases the ability to absorb nutrients increases the ability of wastes to diffuse out of the organism All of the above
Answers
Answer:
increases the ability of wastes to diffuse out of the organism
Explanation:
A small size of an organism is advantageous for marine organisms because it increases the ability of wastes to diffuse out of the body of organism. Small size of an organism produces less amount of waste material and these organism does not need a very special and complex excretory system so simple diffusion of waste material occurs from the body in order to clean the body.
In an unmyelinated axon, when an action potential propagates to a neighboring patch of membrane, the initial event is O opening of voltage-gated sodium channels in the neighboring patch of membrane, O opening of voltage gated potassium channels in the neighboring patch of membrane. O graded hyperpolarization of the neighboring patch of membraneO graded depolarization of the neighboring patch of membrane
Answers
In an unmyelinated axon, when an action potential propagates to a neighboring patch of membrane, the initial event is opening of voltage-gated sodium channels in the neighboring patch of membrane, opening of voltage gated potassium channels in the neighboring patch of membrane.
A cell location's membrane potential experiences an action potential when it rapidly rises and falls. Thereafter, this depolarization causes similar depolarization in nearby areas. Excitable cells, which are a group of animal cell types that include neurons, muscle cells, and some plant cells, exhibit action potentials. Furthermore excitable cells include some endocrine cells, including some anterior pituitary gland cells and pancreatic beta cells.
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Do the hawaiian honeycreepers provide evidence to support Darwin’s theory of evolution by natural selection ?
Answers
Answer:
Yes.
Explanation:
This kind of bird, that is found at the islands of Hawaii have different kinds of beak. The adaptive radiation of those birds resulted on specialized forms of beaks and also, according to the Darwin natural selection theory, an ancestor of those birds probably had one kind of beak, but the different niches in the archipelago of Hawaii has selected different forms of beak leading to the actual species.
Yes, Hawaiian honeycreepers provide strong evidence that supports the Darwin's theory of natural selection.
Darwin's theory of evolution by natural selection:Hawaiian honeycreepers support the Darwin's theory of natural selection as different species of honeycreepers are adapted to fit into distinct surroundings. They are the endemic species, which inhabit the Hawaiian archipelago similar to the Darwin's finches that inhabited the Galapagos Islands.
The honeycreeper species of Hawaii has evolved the shape of their beaks in an efficient way in order to consume the nectar of distinct kinds of flowers on each of the Island. The beak shape of the honeycreepers fit to the flowers so that distinct species of bird can draw nectar more effectively based on the flowers found on each of the Island.
The species of Hawaiian honeycreepers demonstrate a good example of evolution by natural selection, that is, distinct species of the bird inhabit distinct islands in order to adapt with the specific environmental conditions.
Thus, it can be conclude that Hawaiian honeycreepers offer strong evidence to support the Darwin's theory of evolution by natural selection.
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Which statement about the theory of evolution is correct? A. All scientists agree on the theory of evolution. B. It was and still is a highly debated topic among scientists. C. It was a fast theory to form, as evidence for it was plentiful. D. All scientists choose to disprove the theory of evolution.
Answers
The theory of evolution was and still is a highly debated topic among scientists. Thus option B is correct.
What is Darwin Theory of Evolution?
This theory is commonly theory of natural selection given by Charles Darwin.
According to this theory, organisms with their traits that are suitable to changing environment and those organisms survive and reproduce, pass the trait to next generation.
The organism who do not have desirable trait and adopt the changes in environment , that trait will not passed to next generation.
This theory also called as survival of the fittest.
Thus option B is correct.
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aquaporin allows water molecules to move very rapidly across a plasma membrane. what would be the best definition of this process? multiple choice facilitated diffusion using a transporter active transport using a transporter facilitated diffusion using a channel active transport using a channel
Answers
Aquaporins are specialized proteins that act as channels for the rapid movement of water molecules across the plasma membrane. This process is best defined as facilitated diffusion using a channel. Option C .
Facilitated diffusion is a type of passive transport in which molecules move down their concentration gradient through a specific channel or transporter protein. In the case of aquaporins, the water molecules move down their concentration gradient from an area of high concentration to an area of low concentration, but they are facilitated by the specific channel formed by the aquaporin protein. This process does not require any input of energy and is crucial for maintaining the water balance and osmotic pressure across the cell membrane.
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Full Question ;
Aquaporins allow water molecules to move very rapidly across a plasma membrane. Which of the following best defines this process?
A) Facilitated diffusion using a transporter
B) Active transport using a transporter
C) Facilitated diffusion using a channel
D) Active transport using a channel
What is the main difference between Biomass, & Biofuel?
Answers
Biomass refers to all organic material that comes from plants and animals. The sources of it may include plant-derived materials that include forestry residues and urban wood waste. On the contrary, biofuel refers to the energy sources that come from biological materials such as plant material and animal wastes. Both of them are renewable resources. Biomass is burned to produce electricity and biofuels can be converted into liquid fuels which replace petrol from fossil fuel and diesel.
22. An astronaut on the space station tests whether gravity affects the productivity of tomato plants. What
is the independent variable in this experiment?
Answers
When conducting an experiment, the independent variable is always the one that produces or causes an effect or reaction on the dependent variable. In the exposed situation, the independent variable is gravity.
--------------------------------------
During an experiment, you need to consider all the variables involved.
Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is controlled and modified to analyze how another variable responds to it. The researcher changes the independent variable to observe its effects on the dependent variable. Usually, the independent variable is represented by the X letter. In the exposed example, gravity is the independent variable, and influences the productivity of tomato plants. Dependent variable: Refers to the variable, which response depends on any change in the independent variable. It represents a quantity of something which value depends on how the independent variable is modified. The change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. It is usually identified by the letter Y. Controlled variables are kept constant in the control groups and the experimental groups. Unlike the independent variable, the controlled variables do not influence the results. These variables do not affect the response of the dependent variable.------------------------
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what is the consequence of the red blood cell being anucleate
Answers
The nucleus of the red blood cell (RBC) is absent. The RBC can store more hemoglobin because it doesn't have a nucleus, which improves its ability to transport oxygen.
What are the effects of a red blood cell being anucleate—that is, lacking a nucleus?Red blood cells acquire their distinctive biconcave disk form as a result of the loss of the nucleus, which causes the plasma membrane to sink inward. However, the red blood cells also lose their capacity to procreate when the nucleus is lost.
What is the process of anuncleating red blood cells?Red blood cells from vertebrates are anucleate, which means they are devoid of nuclei. While some creatures have a full nucleus in their red blood cells, many do not Red blood cells have a nucleus, however it is removed during cell development.
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In pea plants, yellow seeds are dominant over green seeds. What would be the
expected genotypic ratio in a cross between a plant with green seeds & a plant that
is heterozygous for yellow seed color?
A. 1:1
B. 1:3
C. 1:2:1
D. 4:1
Answers
The expected genotype ratio is 1:3.
The genotype of an organism is the sum total of the gens that the organism received from its parents. The genotype determines the traits of an organism (phenotype).
Let the dominant gene be R and the recessive gene be r then we have a cross between RR and Rr. The expected genotype ratio is 1:3.
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