what is the term for the programmed death of cells?
Answers
Answer:
Referred to as cellular s*icide
Explanation:
Programmed cell death (sometimes referred to as cellular s*icide) is the death of a cell as a result of events inside of a cell, such as apoptosis or autophagy.
Apoptosis is a form of programmed cell death that occurs in multicellular organisms.
Related Questions
What is the RNA sequence that corresponds to this DNA sequence? ACC GCG
TAT GCT *
Answers
Answer:
UGG CGC AUA CGA
Explanation:
Think of another common object around your house or school that you could use to model a cell. Describe the object. Based on its characteristics, does the object best model an animal cell, a plant cell, or a bacteria cell? Why?
Answers
Answer:
Out of all the objects I found I think a car represents a cell the best.
Explanation:
The structure a cars body provides makes it comparable to a cell wall and the car's metal body is also represents a cell wall because it maintains its shape even when it travels at high speeds. The windshield and windows can be compared to plasma membranes, since they protect the inside of the car from invaders (like insects). The gas tank represents the vacuole because it holds the energy source for the car, and the engine represents the mitochondria because it is the power house of the car
How hormones are involved in osmoregulationdone by kidneys
Answers
Answer:
This is because they regulate the amount of water reabsorbed from glomerular filtrates in kidney tubes controlled by hormones.
Explanation:
A trait such as having a crooked thumb is produced by a (n)
Answers
A Hitchhiker thumb or crooked thumb is produced by recessive alleles. It is an example of a rare genetic disorder.
What is Hitchhiker's thumb?Distal hyperextensibility of the thumb is another name for a hitchhiker's thumb. This is caused by the hereditary characteristics that lead a person to stretch while bending his thumb backward.
The distal joint is crucial in maintaining the thumb's straightness. The thumb can bend backward, becoming the hitchhiker's thumb, when the distal joint hyperextends. A hitchhiker's thumb is neither a benefit nor a drawback.
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What is the large owl in South Texas?
Answers
Answer: Great horned owl
Explanation:
A single bacterium was living in the piece of food that you just ate. Why don't you get sick straight away?
Answers
Answer:
A single bacterium may not cause illness unless it multiplies to a sufficient amount in the body and overwhelm the immune system. The body's natural defense mechanisms, such as the digestive system and the immune system, often prevent harmful bacteria from causing illness.
Which results in mechanical digestion in the stomach?
Answers
Answer:
The term mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces which can be done by digestive enzymes, hydrochloric acid. Mechanical digestion in the stomach results in the formation of bolus.
Explanation:
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Question 5 of 26
The image shows an energy pyramid.
Eagle
Snake
Frog
Grasshopper
Grass
Which statement is supported by the pyramid?
A. All of the energy in the grass will be passed on to the next level.
B. Some of the energy in a snake is available to frogs
C. Some of the energy in a grasshopper will be used for a frog's life
functions
D. Most of the energy in an eagle will be passed on to producers.
Answers
Answer:
C. Some of the energy in a grasshopper will be used for a frog's life functions is supported by the pyramid.
Recently, oil from a wrecked tanker resulted in a disaster in ecosystems containing many unique species. The potential loss of these species could result in:.
Answers
The potential loss of these species could result in a decrease in organisms available for scientific research.
What is biodiversity?Biodiversity refers to all genetic and phenotypic diversity present in a giver region and/or ecosystem.
Loss of biodiversity is a problem that may seriously affect and hamper any type of scientific investigation.
In conclusion, the potential loss of these species could result in a decrease in organisms available for scientific research.
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What is not a component of eukaryotic transcriptional regulation? group of answer choices
Answers
A) Chromatin structure
B) Cis-acting DNA sequences
C) Nucleosome remodeling
D) Ribosomal binding affinity to mRNA
E) Transcription factor binding to enhancer element
Choice D Ribosomal binding affinity to mRNA is not a mechanism for controlling transcription. The remaining possibilities are all various transcriptional regulatory systems.
because transcription comes after ribosome binding. As a result, transcription is not regulated by the ribosome's affinity for mRNA. However, it is a translational rule. In eukaryotes, the ribosome binds to the Shine-Dalgarno sequence. Only affinities matter here. The synthesis of proteins varies depending on the affinities. However, it plays no part in the level of transcriptional regulation.
Changes in chromatin structure control how genes are transcribed. Because phosphate groups have a negative charge, DNA is negatively charged. Because these proteins include positively charged amino acids like arginine and lysine, histones are positive charge proteins. Thus, positive and negative charges will attract and create the structure of the chromatin. The positive charge on the histones is thus neutralized by changes including acetylation, methylation, phosphorylation, and ubiquitination on the histone tail, which causes the DNA in this area to unravel so that Polymerase can quickly bind and transcription to start. Transcription is inhibited by some modifications. As a result, transcription can be regulated by chromatin structure.
Cis-DNA acting elements are those that share a regulatory sequence with the gene, putting them close to the promoter where they can control transcription. These elements are recognized by transcription factors, who work with the polymerase to control transcription.
An further method of controlling transcription is the nucleosomal remodeling complex. The nucleosome can be removed from the promoter sequence in an ATP-dependent manner by remodeling complexes like SWI/SFI. It will enable polymerase to access it. As a result, it is also a method for controlling transcription.
Either a cis- or trans-acting enhancer element. Enhancers are often located thousands of base pairs before the promoter sequence. They create a loop to engage with polymerase or transcriptional factors. These enhancer elements generate loops that control transcription and are identified by certain factors.
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3. How can we use what we know about cell membranes to treat disease?
4. In the "Assault on the Male" video, how do environmental estrogens "trick" cells by
attaching to cell membranes? How are these environmental estrogensable to attach to cell
membranes? What happens in a cell when this happens?
Answers
The cell membrane slows the movement of water into or out of the cell and this is vital when treating diseases.
What is a cell membrane?The cell membrane provides protection for a cell and also provides a fixed environment inside the cell. It transports nutrients into the cell and transports toxic substances out of the cell.
The cell membrane is simply one of the major barriers that pathogens need to conquer e.g. a virus first needs to attach itself to the cell membrane and injects its genetic material into the host cell before replication.
Estrogens passively diffuse across the plasma membrane and then bind to their receptor proteins in the cytoplasm of the target cells.
When estrogen enters the nucleus, it binds to the estrogen receptor, causing it to pair up and form a dimer. Then this dimer then binds to several dozen specific sites in the DNA, strategically placed next to the genes that need to be activated.
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Which best describes when the body is working on counteracting an effect?
when hormone levels in the body are all equal
during a negative feedback loop
during a positive feedback loop
when the hypothalamus is signaling the pituitary gland
Answers
Answer: the answer is B or during the negative feedback loop.
Explanation: the body is trying to counteract the negative feed back.
During a negative feedback loop, the body is working on counteracting an effect. thus, option B is correct.
What are the differences between negative and positive feedback loops?Positive feedback loops amplify or exacerbate changes, moving a system farther from equilibrium and making it more unstable. Negative feedbacks tend to dampen or buffer changes; this tends to hold a system to some equilibrium state making it more stable.
A self-regulating system is a negative feedback loop, often known as an inhibitory loop. Increased output from the system restricts future production in a negative feedback loop. When the quantities of particular proteins or hormones in the body get too high, the body reduces their production.
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examine the five words and/or phrases and determine the relationship among the majority of words/phrases. choose the one option that does not fit the pattern. group of answer choices lower rates of photosynthesis increased phosphorus concentration high light levels increased nitrogen concentration upwelling
Answers
Examine five words and/or phrases and determine the relationship between most of the words/words. Here the upwelling does not fit the pattern. Here option E is the correct answer.
The majority of the words/phrases are related to the factors that can affect the rate of photosynthesis in plants. Photosynthesis is the process by which plants convert light energy into chemical energy, using carbon dioxide and water to produce glucose and oxygen.
Lower rates of photosynthesis indicate a decrease in the amount of light energy that is converted into chemical energy. This can be caused by various factors, including insufficient light, water, or nutrients. Increased phosphorus concentration, high light levels, and increased nitrogen concentration, on the other hand, are all factors that can increase the rate of photosynthesis by providing the necessary nutrients and energy for the process.
Upwelling, however, does not fit this pattern as it is not a direct factor that affects photosynthesis in terrestrial plants. Upwelling refers to the movement of cold, nutrient-rich water from the bottom of the ocean to the surface, which can provide nutrients for marine plants. However, terrestrial plants do not directly benefit from this process as they do not have access to nutrient-rich water.
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Complete question:
Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. choose the one option that does not fit the pattern. group of answer choices
A - lower rates of photosynthesis
B - increased phosphorus concentration
C - high light levels
D - increased nitrogen concentration
E - upwelling
come up for the brainiest championship
Answers
Answer:
Explanation:
Look at the number lines below.
Two number lines are shown. The first number line shows zero, one-half, and one. The second number line shows zero at the same place the first number line shows zero, one-fourth, two-fourths at the same place the first number line shows one-half, three-fourths, and one at the same place the first number line shows one.
Which fraction on the bottom number line is equal to
1
2
?
A.
3
4
B.
All are equal to
1
2
.
C.
2
4
D.
1
4
The process by which a dead or disabled pathogen (or proteins from that pathogen) is introduced into the body so that an immune response results without an actual infection is called? Group of answer choices Bacteriophage Vaccination/Vaccine Antibiotics Pathogenic
Answers
Answer:
Vaccination/Vaccine
Explanation:
Vaccination/Vaccine: The process of using a dead or weakened version version of a microbe to gain antibodies, thus protecting against future infections without needing to have the disease first.
Bacteriophage: A virus that infects bacteria.
Antibiotics: Medicines are used to treat bacterial infections by killing the bacteria, and do not work on viruses.
Pathogenic: capable of causing disease.
An someone tell me what the answer is??
Answers
Answer:
I think that answer is right
Explanation:
when a neuron is in the resting potential state, the neuron is negatively charged on the _________ and positively charged on the _________.
a.) Bottom, top
b.) Top, bottom
c.) Outside, inside
d.) Inside, outside
Answers
when a neuron is in the resting potential state, the neuron is negatively charged on the Bottom and positively charged on the top.
What causes the resting membrane potential?
The difference in permeability of the membrane to various types of ions and the unequal distribution of ions (charged particles) between the interior and outside of the cell influence the resting membrane potential.
A stimulation starts to alter the membrane's charge distribution.
The difference in electrical potential across the plasma membrane when a cell is not stimulated is known as the resting membrane potential. The electrical potential differential across a cell membrane is often indicated by how much it differs from the extracellular environment inside the cell.
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The ________ duct empties into the vestibule at the level of the second upper molar. parotid vestibular submaxillary sublingual submandibular.
Answers
The parotid duct empties into the vestibule at the level of the second upper molar. Parotid vestibular submaxillary sublingual submandibula.
The upper second molar tooth's crown is direct across from the opening of the parotid duct, also known as Stensen's duct, which secretes serous saliva and enters the gingiva-buccal vestibule of the mouth. The parotid ducts typically exit near the maxillary second molars, and they can be felt as little bumps (papillae) on both sides of the mouth. At the sublingual caruncle, the Wharton duct, the primary excretory duct of the submandibular gland, empties into the oral cavity. The sublingual caruncle is a papilla that is situated lateral to the frenulum linguae and medial to the sublingual gland. A set of lymph nodes located in front of the ear is known as the superficial parotid lymph nodes. Learn more about parotid duct here brainly.com/question/24210088#SPJ4
true or false? a codon is a group of three bases that can specify more than one amino acid.view available hint(s)for part atrue or false? a codon is a group of three bases that can specify more than one amino acid.truefalse
Answers
It is true that a Codon is a trio of nucleotides that can designate many amino acids. Four nucleotides make up the language of DNA and RNA molecules, while 20 amino acids make up the language of protein molecules.
Do three codons equal one amino acid?This proved that the coding unit is made up of three nucleotides. A codon is a triplet of nucleotides that codes for an amino acid. One amino acid is encoded by each set of three nucleotides.
A codon may specify multiple amino acids.Even within a single gene, a codon can spontaneously evolve to code for two different amino acids, with the choice of the inserted amino acid being determined by an RNA structure in the 3′-untranslated region.
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The stories seem as tall as the lake is deep. For hundreds of years, visitors to Scotland's Loch Ness have described seeing a `monster. Some believe it lurks in the depths of the loch, or lake.
But now the legend of "Nessie" may have no place left to hide. A New Zealand scientist is leading an international team to the lake next month. They will take samples of the murky waters and conduct DNA tests to determine what species live there.
University of Otago professor Neil Gemmell says he's no believer in Nessie, but he wants to take people on an adventure and communicate some science along the way. Besides, he says, his kids think it's one of the coolest things he's ever done.
One of the more far-fetched theories is that Nessie is a long-necked plesiosaur. Plesiosaurs were long-necked marine animals that lived during the time of dinosaurs. The theory is that the reptile somehow survived the period when all dinosaurs became extinct. Another theory is that the monster is actually a sturgeon or giant catfish. Many believe the sightings are hoaxes or can be explained by floating logs or strong winds. Gemmell said that when creatures move about in the water, they leave behind tiny fragments of DNA. It comes from their skin, feathers, scales, and urine.
He said his team will take 300 samples of water from different points around the lake and at different depths. They will filter the organic material and extract the DNA, he said, sequencing it by using technology originally created for the human genome project.
He said the DNA results will then be compared against a database of known species. He said they should have answers by the end of the year."I'm going into this thinking it's unlikely there is a monster, but I want to test that hypothesis," Gemmell said. "What we'll get is a really nice survey of the biodiversity of Loch Ness."
He said the real discoveries may come in determining things like the prevalence of invasive species.
"I hope he and his cohorts find something, although I think they'll be battling," Matheson said. "Still, it's a good way to get a trip to Scotland," Gemmell said that even if they don't find any monster DNA, it won't deter some Nessie believers. He said they've already been offering him theories, like how Nessie might be on vacation after swimming to the sea via hidden underwater caves. Another is that the creature might be extraterrestrial and not leave behind any DNA.
"In our lives, we want there still to be mysteries, some of which we will ultimately solve," Gemmell said. "That's part of the spirit of discovery. And sometimes, what you find may not be what you were expecting."
Who - New Zealand scientist
What - taking water samples
When - next month
Where - Scotland
Why - determined if the loch ness monster is real
How - testing DNA samples
Use 5 Ws and H to write a summary of the article above, including a main idea (first sentence) and at least 3 supporting details.
Answers
Neil Gemmell, a lecturer at the University of Otago, said he doesn't believe in Nessie, but he still desires to take tourists on an experience and interact with them.
Describe an adventure?A book detailing his numerous daring expeditions. the experience of risks the spirit of exploration. : a memorable or interesting experience. It could also be a daring, typically dangerous activity with a hazard of failure. Adventures might include physically risky activities like exploring, skydiving, mountain biking, river rafting, or engaging in extreme sports.
Describe a book?A collection of printed, blank, or written sheets bundled within a front and rear cover. a large printed or written literary work.: an address book Pages are the pieces of paper that make up a book. The pages contain
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Which part of the phospholipid bilayer is hydrophobic? Which direction does it face?
Answers
They face inward
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Which of the following is the best example of potential energy?
A baseball player hitting the ball
A horse trotting in an open field
A noodle cooking in boiling water
A runner positioned at the start line
Answers
Answer:a runner positioned at the start line...
Target BCS at the end of the peak lactation or end of the NEB period is 1.5 2.0 2.5 3.0 How long can you feed colostrum and get any sort of immunoglobulin absorption? 6 hrs. 12 hrs. 24 hrs.
Answers
The target BCS (Body Condition Score) at the end of the peak lactation or end of the NEB (Negative Energy Balance) period may vary depending on specific management goals and individual animal requirements. As for the duration of colostrum feeding for immunoglobulin absorption, the recommended timeframe is within the first 24 hours after birth.
Feeding colostrum to newborn animals is crucial for their passive transfer of immunity. Colostrum contains high concentrations of immunoglobulins, which are essential for providing temporary protection against diseases until the newborn's own immune system develops. It is generally recommended to feed colostrum within the first 6 to 12 hours after birth to ensure optimal absorption of immunoglobulins. However, absorption can still occur to some extent within the first 24 hours. After this period, the intestinal absorption of immunoglobulins diminishes significantly, reducing the effectiveness of colostrum as a source of passive immunity. Therefore, it is important to provide colostrum to newborn animals as early as possible to maximize immunoglobulin absorption and improve their overall health and disease resistance.
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Photosynthesis, result table
Answers
will the seasonal consequences of tides, such as flooding, occur in the same season all around the globe?
Help
Answers
Answer:
Flooding is common throughout many areas within the United States and can be prevalent during particular times of the year in the particular areas. Though there is no specific flood season, most flooding occurs in the U.S. from spring to fall. Flooding is also more likely to occur in areas which have seasonal rainstorms, flood-prevalent topography like desert topsoil or a location along the coast.
Write a short paragraph that explains the central idea of the article. Use at least two details from the article to support your response.
Dozens of earthquakes hit Hawaii as the world's largest volcano erupts
On November 27, Mauna Loa erupted for the first time in nearly 40 years. Located in Hawaii, Mauna Loa is the world's largest active volcano. Volcanoes are openings or vents where lava, small rocks, and steam erupt onto the Earth's surface. Melted rock that comes up from inside the Earth and out of a volcano is lava. The Mauna Loa eruption occurred at the Moku'āweoweo summit caldera. This is a large sunken basin at the summit — or highest point — of the volcano.
Following the eruption, dozens of earthquakes swarmed the region — one of them a magnitude 4.2 quake. Magnitude is a number that characterizes the relative size of an earthquake from 1 to 9.
Remain Vigilant
Officials issued an ashfall advisory for Hawaii's Big Island and asked residents to remain vigilant. So far the eruption's lava flows pose no risk to people living downhill from the eruption, according to Hawaii's Tourism Agency.
Map showing lava flow of Mauna Loa from the years 1843 to 1984.
Image 1. The volcano's last eruption was in 1984, when it sent a lava flow close to the city of Hilo.
"At this time, lava flows are contained within the summit area and are not threatening downslope communities," said officials from the U.S. Geological Survey (USGS). The USGS is a government agency that collects information to help monitor natural hazards such as earthquakes. They warned, however, that the location and advance of lava flows can change rapidly.
The USGS's Hawaiian Volcano Observatory noted that it is set to perform flights to assess the eruption. They warned that "winds may carry volcanic gas and possibly fine ash and Pele's hair downwind." Pele's hair are thin strands of volcanic glass formed from cooling lava. The glass is sometimes carried into the air by strong winds and is sharp enough to tear skin and eyes.
Monitoring The Volcano
Mauna Loa takes up more than half of Hawaii's Big Island. It rises 13,679 feet (4,169 meters) above the Pacific Ocean, according to the USGS. The volcano is fairly active, having erupted 33 times since its first well-documented eruption in 1843. Its last eruption was in 1984 when it sent a lava flow close to the city of Hilo. After that, Mauna Loa entered its longest dormant period in recorded history. Periods of time when the volcano is not erupting, but could in the future, are volcanic dormant periods.
Scientists tracked an uptick in earthquake frequency beginning in June with five to 10 earthquakes a day. By September, the warning signs of an eruption increased. The number of earthquakes grew to around 40 a day in October.
Answers
The central idea that the text has is that it tells us of the fact that the scientists were talking about the eruption as a way of sending out warning to the people.
The parts that agree with this are: By September, the warning signs of an eruption increased. Officials issued an ashfall advisory for Hawaii's Big Island and asked residents to remain vigilant
What is the central idea of a passage?The most significant thought that the author wishes to convey to the reader is the key theme of a passage or story. It is possible to state the main notion immediately. The main idea is stated by the author.
The key thought or concept that the author wishes to convey to the readers about the subject is the main idea of a paragraph.
The main premise of the text is that it informs us of the fact that experts were discussing the eruption as a means of alerting the public.
The following passages support this: By September, there were more eruption warning indicators.
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a growth pattern in which poulation size stabilizes at a maxium limit
Answers
The growth pattern described is known as the carrying capacity.we can better manage and conserve natural resources and minimize our impact on the environment.
The carrying capacity is the maximum number of individuals that an environment can support sustainably, based on the availability of resources such as food, water, and habitat. When a population grows beyond the carrying capacity, there are not enough resources to support all individuals, which can lead to competition for resources, reduced reproductive success, and ultimately a decline in population size. The concept of carrying capacity is important in ecology and conservation biology, as it helps us understand how populations interact with their environment and how human activities can impact the sustainability of ecosystems. By understanding the carrying capacity of a given area, we can better manage and conserve natural resources and minimize our impact on the environment.
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Does anyone know this? I picked arkansa and North Carolina
Graduation rates vary from state to state in the United States. Based on the statistics for the two states you selected, identify at least one potential reason for this variance.
Answers
Answer:
Poverty rates
Explanation:
A lower income city, town, or even region might have less money to spend on school and education. So kids don't feel nessisary or even bad to go to school as they face going broke and running out of food, kids work because their parents work themselves into injuries or can't work at all. Kids see school as 7 hours of money gone and loss of providing food for their family. So they drop out to stay alive.
A molecule that is too large to move easily through the plasma membrane would likely have to use what type of transport to enter the cell?
Passive Transport
DIffusion
Osmosis
Active Transport
Answers
Answer:
Diffusion
Explanation:
Diffusion has a membrane which allows even large molecules to pass through it whereas osmosis allows only water molecules as it has a partially permeable membrane.
ecosystem services are a. the movement of mass through the biogeochemical cycles b. carbon sequestration c. the life-sustaining products and benefits that ecosystems provide d. ecosystem capital and its flow
Answers
Ecosystem services refer to the various life-sustaining products and benefits that ecosystems provide to humans and other organisms.
These services include the provision of food, water, clean air, and materials for shelter and clothing, as well as regulation of the climate, water quality, and disease, among others. Ecosystem services are essential for the survival and well-being of human societies and are critical to maintaining the health and functioning of ecosystems.
Carbon sequestration is one of the ecosystem services provided by ecosystems, which refers to the removal of carbon dioxide from the atmosphere and its storage in vegetation, soils, and other organic matter. However, ecosystem services encompass a broader range of benefits and products, including cultural and aesthetic values, recreational opportunities, and biodiversity conservation.
Therefore, option C is the correct answer: ecosystem services are the life-sustaining products and benefits that ecosystems provide.
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