Nutrients and ions can pass directly from cell to cell through special membrane junctions known as gap junctions.
Gap junctions are structures composed of transmembrane proteins that enable communication between cells. They are found in most animal cells and play a critical role in the coordination of cellular activities.
Gap junctions are important for maintaining homeostasis in the body. They allow for an exchange of ions, metabolites, and other molecules between cells. This process helps to maintain a balance of nutrients and ions throughout the body. Gap junctions are also involved in the coordination of cellular activities such as cell growth, differentiation, and cell migration.
Gap junctions are composed of two connexons, or hemichannels. The connexons are composed of six transmembrane proteins, referred to as connexins. The connexins form a channel between the two cells, allowing for the exchange of small molecules and ions. The connexons can open and close in response to a variety of external and internal signals, allowing for a tightly regulated exchange of materials.
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please help me on this question its for biology
How do snails protect themselves from predators?
Their are various adaptation that helps snail to defend from predators that include cryptic coloration , thickened outer shell . They also produces mucous and irritating smells . They have quick hiding and withdrawal behaviors.
In general ,snails have a hard exoskeleton usually formed from crystalline calcium carbonate. these shells helps to protect snails from predators and some time extreme temperature. In addition they can also help with the defence against nematodes. These shells have many different structures like the one with spiral shapes helps for better hiding from predators .
Snails are also capable of regenerating the broken shell which is also an adaptation strategy .
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Which of the following methods of
human land use is LEAST LIKELY to cause
harm to the environment?
A. waste disposal
B. recreation
C. drilling
D. mining
Answer:
I say B
Explanation:
I say B would be the answer because you're recreating things, even from waste disposal
What are ome of the body' natural immune repone to injury that are cauing john ymptom
The body’s natural immune responses to injury that are causing John's symptoms are the innate immune response and the adaptive immune response.
The primаry function of the immune system is to defend the body from pаthogens, which аre diseаse-cаusing orgаnisms such аs viruses аnd bаcteriа. Tissues, cells, аnd proteins in the immune system work together to аchieve this function.
When а pаthogen gets into the body, the immune system reаcts in 2 wаys.
The innаte immune response is а rаpid reаction. Innаte immune cells recognize certаin molecules found on mаny pаthogens. These cells аlso reаct to signаling molecules releаsed by the body in response to infection.The аdаptive immune response is slower thаn the innаte response but is better аble to tаrget specific pаthogens. There аre 2 mаin cell types involved in this response: T cells аnd B cells.For more information about the immune system refers to the link: https://brainly.com/question/19843453
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1. Do you believe we can bring an end to acid rain? How so?
2. What are some examples of land pollution?
How are weather and climate the same? How are they different? ¿En qué se parecen el tiempo y el clima? ¿En qué se diferencian?
Answer:
They are the same because they both talk about atmospheric conditions like precipitation, temperature, amount of sun, etc. They are different because weather talks about short-term changes in the atmosphere while climate describes weather over a long period of time in a certain area. Different regions can have different climates and or weathers.
Cuales son las caracteristicas y organos q desarrolla el embrion y el feto por trimestre
Answer:
Su bebé crecerá más y aumentará de peso más rápido. Sus órganos y partes del cuerpo continuarán desarrollándose. Las uñas de las manos y los pies comienzan a formarse y los riñones comienzan a funcionar. Al final del primer trimestre, su bebé ha triplicado su longitud a aproximadamente 3 pulgadas de largo.
In contrast to transporters, ion channels in cellular membranes .... Group of answer choices interact strongly with the molecules they transport undergo a conformation change with every solute they transport can only mediate passive transport form pores that are always open are always controlled by voltage
In contrast to transporters, ion channels in cellular membranes can only mediate passive transport form pores.
Only in order to open a membrane pore that enables a certain ion into the membrane do channel proteins undergo a conformation in the membrane. In contrast to carrier proteins, the ion will only move along its concentration gradient. It has been discovered that all membrane transport proteins that have been in-depth study are multipass transmembrane proteins, meaning that their transporters chains repeatedly pass through the lipid bilayer. These proteins allow certain hydrophilic solutes to traverse the membrane without coming into touch with the hydrophobic interior of the lipid bilayer by establishing a continuous protein pathway across the membrane.
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In order to see a recessive trait in an organism's phenotype, what must be the organism's genotype?
Answer:
The organism must have two recessive alleles of the same type. Recessive alleles are usually represented by a lower case letter.
Examples:
rr, hh, bb, aa
Explanation:
During sexual reproduction, two gametes (sex cells) fuse to create a fertilized cell (zygote) with a complete set of chromosomes. What must be true about the number of chromosomes in each gamete
During sexual reproduction, two gametes (sex cells) fuse to create a fertilized cell (zygote) with a complete set of chromosomes. What must be true about the number of chromosomes in each gamete is only one set of chromosomes.
Sexual reproduction is a way of developing living things by combining genetic information from two individuals of different sexes through the process of fertilization. Fertilization occurs when an egg and sperm cell meet to produce a zygote.
Chromosomes are a group of fine threads in cells that function as carriers and stores of genetic information in living things. Gamete cells have one set of chromosomes (haploid) consisting of 23 chromosomes with the composition of sperm cells 22 A + X or 22 A + Y and ovum cells: 22 A + X
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Which substances are neuropeptides that inhibit pain impulse transmission in the brain and spinal cord
The most important of them is beta-endorphin, which, in addition to significantly lowering pain (its analgesic potency is many times that of morphine), is the opioid peptide that induces the most pleasure.
GABA, a neurotransmitter, also plays a role in central pain regulation by enhancing descending inhibition of spinal nociceptive neurons.
Neuropeptides are a broad category of chemically unique compounds that are found in and emitted by various sensory neurons. They play a role in the development, transmission, modulation, and perception of all forms of pain (physiological, neuropathic and inflammatory).
Neuropeptide Y (NPY) is a pain modulator that is generated in the brain. NPY receptors are found in the trigeminal ganglia and the trigeminal nucleus caudalis, implying an involvement in pain.
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How many haploid sets of chromosomes are present in a diploid individual cell with a chromosome number of 32
A diploid individual cell with a chromosome number of 32 contains two haploid sets of chromosomes. A haploid set of chromosomes is a complete set of chromosomes that contains one of each type of chromosome.
Each haploid set contains 16 chromosomes in the diploid individual cell with a chromosome number of 32. During the process of meiosis, the parent cell divides into four daughter cells. During this process, the two haploid sets of chromosomes that were present in the parent cell are separated into the four daughter cells.
During the formation of the four daughter cells, each daughter cell contains only one haploid set of chromosomes. This means that in a diploid individual cell with a chromosome number of 32, there are two haploid sets of chromosomes present.
The two haploid sets of chromosomes present in a diploid individual cell with a chromosome number of 32 each contain 16 different chromosomes. These chromosomes are responsible for the genetic traits of the individual. Each of the 16 chromosomes contains specific genes that control certain traits. These genes are responsible for the physical characteristics of the individual, such as hair color, eye color, and height. These chromosomes also contain information that determines the sex of the individual.
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What is formula of calculation of risk?
Risk is defined as the probability of an event and its result. The following is a common formula of calculation of risk: Risk = Impact × Likelihood.
Risk can be defined as the chance that anything negative will occur. Risk is the unpredictable impact a choice will have on anything important to people (such as their health, well-being, wealth, property, or the environment), with a propensity for being detrimental. There have been many original interpretations put forth. "Effect of Uncertainty on Objectives" is the globally accepted definition of risk for use in a variety of applications.
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who is the ultimate authority on ethical issues?
Answer: There is no single ultimate authority on ethical issues, and different individuals and groups may have different approaches and sources of guidance for resolving them. The resolution may depend on the context, values, and beliefs of those involved.
Explanation:
(⌐■_■)
What type of mutation is insertion or deletion?
An insertion and deletion mutation is called as a frameshift mutation .
An insertion is a point mutation in which one or more base pairs is added to a DNA sequence. Point mutations is further divided into silent mutations, missense mutations, and nonsense mutations.
Frameshift mutation is considered as a genetic mutation caused by a deletion or insertion in a DNA sequence. This kind of mutation shifts the way the sequence is read. diseases like cystic fibrosis is a result of frameshift mutation that alters the CFTR gene. The harshness of frameshift mutation is reliant on the number of nucleotides and the position of insertion of nucleotides.
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what is the meaning of the term latitudinal gradient?
a) Biodiversity increases as you move from the Earth’s oceans toward the land areas.
b) Biodiversity decreases as you move from Earth’s poles toward the equator.
c) Biodiversity increases as you move from Earth’s ocean areas toward the deserts.
d) Biodiversity increases as you move from the Earth’s pole toward the equator.
Answer:
d) biodiversity increases as you move from the Earth's poles toward the equator.
Explanation:
i took the test
The meaning of the term latitudinal gradient is that biodiversity increases as you move from the Earth’s pole toward the equator. The correct option is d.
What is a latitudinal gradient?A latitudinal gradient shows the pattern of distribution of biodiversity in a geographical area. It tells where the species increase or decrease within the areas.
The latitudinal gradient tells that toward the tropic areas, the biodiversity of the terrestrial and marine ecosystems increases. The tropics is the area of tropic of cancer in the Northern Hemisphere and the tropic of Capricorn in the Southern Hemisphere.
Thus, the correct option is d) Biodiversity increases as you move from the Earth’s pole toward the equator.
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What is the least common multiple of 72 and 96?
Answer:
288
Explanation:
Answer:288
Explanation:
Why is a high surface area to volume ratio important in epithelial cells in the gastrointestinal GI tract?
When a cell performs its normal functions, it must exchange substances with the world outside the cell membrane. Cells with a large surface area to volume ratio can exchange substances more efficiently.
Maximizing the surface area of this organ system is important. This is because the greater the surface area of the cell the better the digestive mechanism and the greater the absorption of simplified nutrients.
Digestibility increases with increasing surface area. An explanation for this is a mechanism that accelerates and supports the number of enzymes involved in digestion, and this is one of those enzyme individuals that work more effectively on larger surfaces.
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If a large amount of lactate is being produced, what is the best conclusion that you can make about the rate (how fast) and amount (magnitude) of energy needed
Lactate production increase when the energy (ATP) needed is high but oxygen levels are low. To fulfill this demand, the rate of lactic acid metabolism must be increased as well.
Lactic acid metabolismLactate as waste is the product of fermentation or anaerobic respiration. Anaerobic respiration is categorized into alcoholic metabolism and lactic acid metabolism.
Lactic acid metabolism itself is the metabolic process that produces a little energy. In this metabolism, besides yield 2 ATP also produces lactate per glucose. The process happens in muscle cells as not being supplied with enough oxygen. Times when our body's oxygen level might drop is during intense exercise, whereas, at this condition the demand for ATP is increased.
Thus, to fulfill a lot of energy (ATP) needed, particularly as exercising, the rate of lactic acid metabolism must do faster although it could cause lactate production will also increase.
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5. Vascular plants have cells that carry water and other nutrients. One special type of
vascular tissue carries water up the plant. What is the name of that type of vascular
tissue?
1.Xylem
2.Phloem
3.Chloroplasts
4.None of the above
why are food deserts dangerous to a community
Question: Why are tood deserts dangerous to a community.
Explanation:
In food deserts, healthy foods like fruits, vegetables, whole grains, dairy, peas, beans,meat ,and fish are often expensive or unobtainable
The lack of access to healthily foods in these communities translates to health disparities and high rates of chronic disease
Answer:
this is only what I know
Explanation:
Without access to healthy foods and people living in food deserts may be a higher risk of diet-related conditions as such as obesity, diabetes and even worse is that cardiovascular disease
In gene recombination what is used to separate or open vector DNA
Describe in your own words the process of gene expression (DNA → RNA → proteins)
Answer: A. DNA is transcribed into RNA, which is translated into protein
Explanation:
The process of gene expression is the information from DNA is transcribed into RNA, then this RNA is translated into protein.
What is gene expression?Gene expression is the process of directing protein synthesis by utilizing the genetic information encoded in genes (DNA). Gene expression enables organisms to develop various cell types and adapt to internal and external influences.
The process of gene excretion takes place in the cell nucleus and cytoplasm and is divided into two stages: transcription and translation.
DNA is employed in the transcription process to create copies in the form of mRNA. While translation is the process by which individual polypeptides are synthesized in the ribosome. Protein can be made up of one or more polypeptides.
Therefore, the information from DNA is transcribed into RNA, which is then translated into protein during the gene expression process.
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On a sunny day, Emma is cutting branches from a tree in her yard. At midday, she takes a break, leaving a pile of branches and leaves on the ground. When she returns and gathers the branches, she notices the leaves are wilted and crisp.
Answer:
The warm temperature caused moisture to evaporate from the leaves
Explanation:
A scientist genetically engineered a grain cereal. The genetically engineered variety can produce its own vitamins and is drought resistant. What is the likely impact of growing such a cereal crop on the society
The correct response is (C) since it would help the hungry people. Cereal grains that have been genetically engineered offer several benefits for civilisation.
Both farmers and the poor would gain from a GM grain variety that can produce its own vitamins and is drought tolerant.
The multiple environmental challenges affecting agricultural output have been further exacerbated by drought. Even in the absence of much rain or water, crop varieties that are resistant to drought provide a high yield. In areas that are prone to drought, these kinds have generated a significant yield.
Vitamins are necessary for a healthy diet. They are necessary for many different bodily metabolic activities. Thus, including genes that code for the synthesis of vitamins in cereal grains such as rice aids in feeding the population that is undernourished.
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Full Question ;
A scientist genetically engineered a grain cereal. The genetically engineered variety can produce its own vitamins and is drought resistant. What is the likely impact of growing such a cereal crop on the society?
a. May trigger an adverse climate change
b. May worsen the water crisis around the world
c.Would be beneficial for the malnourished population
d. Would increase the shortage of food around the world
This type of a boundary can be located at around 40°N latitude and 0° longitude?
3. Transform plate boundary can be located at around 40°N latitude and 0° longitude. It is a Venezuela region which lies in between South American Plate and Caribbean Plate.
What do plate tectonics entail?Large rock slabs called tectonic plates that separate the Earth's crust move constantly, changing the topography of the planet. According to the system of ideas behind the plate tectonics theory, the lithosphere, which makes up Earth's outer shell, is divided into many plates that move across the rocky inner layer of the planet above its soft core (mantle).
What constitutes a plate boundary?The line dividing two plates is referred to as a tectonic plate boundary. The tectonic plates are constantly and slowly shifting, but they do so in numerous directions. Some are travelling past each other while others are moving in opposite directions.
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02.Un avión de masa 25000 kg se mueve con una aceleración de 3.5 m/s2. Determine la
fuerza que actúa sobre el avión.
Answer:
Force acting on the plane = 87,500 N
Explanation:
Given:
Mass of airplane = 25,000 kilogram
Acceleration of plane = 3.5 m/s²
Find:
Force acting on the plane
Computation:
⇒ Force = Mass x acceleration
⇒ Force acting on the plane = Mass of airplane x Acceleration of plane
⇒ Force acting on the plane = 25,000 x 3.5
Force acting on the plane = 87,500 N
HELP ME
I WILL GIVE YOU BRAINLIEST
Answer:
I'm pretty sure it would be about 25% chance but i could be long
Explanation:
im sorry if this is wrong
19. What do you expect when the cell wall of a plant cell is removed by a certain way, then put in distilled water? a)The cell takes a longer time to swell. b)The proteins that are present in the cytoplasm exit through the cell membrane. c) The cell shrinks. d) The cell bursts. why is the correct answer (d)
The cell bursts when the cell wall of a plant cell is removed by a certain way, then put in distilled water because the cell wall is removed, the cell would get wet, which would cause it to burst..
How do plant cells react to exposure to distilled water?Putting a plant cell in distilled water causes it to become turgid. This is due to a process called osmosis, which causes the plant cell's cytoplasm to swell up and firmly press up against the cell wall as it absorbs water from the hypotonic distilled water.
Cell walls stop excessive endosmosis from happening when water enters the cell, which also prevents plant cells from bursting. If the cell wall were to be broken, water would enter the space and the cell would eventually burst.
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The food we eat provides the energy our bodies need. We eat carbohydrates, lipids, and proteins. As food is broken down, the compounds are rearranged through chemical reactions forming new molecules that support growth and provide energy. Each biomolecule is made of monomers or building blocks. Which of these correctly pairs the macromolecule and its monomer. Select ALL that apply. A) lipid: fatty acid B) protein: amino acid C) carbohydrate: starch D) protein: nucleic acid E) carbohydrate: monosaccharide
Answer:A, B and E
Explanation: lipid:fatty acid, protein: amino acid and carbohydrate: monosaccharides
(Did this in UsaTestPrep)
The correct biomolecule and monomer pair are as follows:
lipid: fatty acidprotein: amino acidcarbohydrate: monosaccharideBIOMOLECULES:
Biological molecules are molecules formed as a result of biological activities. They are four in nature viz: carbohydrate, protein, lipid and nucleic acids. These biological molecules are polymeric molecules and hence, are made up of smaller molecules called MONOMERS. This means that multiple units of a specific monomer makes up the above listed polymer. The correct monomer - polymer (biomolecule) pair is as follows:lipid: fatty acidprotein: amino acidcarbohydrate: monosaccharidenucleic acid : nucleotideLearn more at: https://brainly.com/question/24282549?referrer=searchResults