The experiment could be performed like take a beaker which is filled with water an spread the pepper onto the water surface and you can observe easily how surface tension holding layer towards upper side.
What is surface tension?Surface tension is the property by which water surface tends to produce tension on it's surface, or we can say that surface is the tendency of liquid to shrink into minimum possible surface area.
Mathematically,
Surface tension is equal to force per unit length it means that force which act at a 1 meter length is called surface tension. By the virtue of surface tension bubble is formed.
Therefore, The experiment could be performed like take a beaker which is filled with water an spread the pepper onto the water surface and you can observe easily how surface tension holding layer towards upper side.
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Suppose actively dividing eukaryotic cells were treated with a chemical that blocks the activity of the enzyme telomerase. What would happen to these cells?.
Answer: Cells would lose DNA at the ends of the chromosomes over many generations.
Explanation:
What type of cell have hair-like projections, mostly in the form of short pili or longer flagella?
Eukaryotic
Animal
Plant
Prokaryotic
Answer:
Prokaryotic
Explanation:
A prokaryotic cell has all those characteristics and appears in bacteria cells. They have a flagella, hair-like projections, and short pili.
Tonicity scenario biology
In the given scenario, the solution's Tonicity scenarios (6,9,13,14) are Hypertonic, (7,15) are Isotonic, and (8,10,11,12) are Hypotonic.
What are Hypertonic, Hypotonic, and Isotonic solutions?The concentration of a solution in relation to another solution is referred to as tonicity. The quantity of solutes dissolved in a solution is referred to as concentration.If the solute concentration is lower than that of another solution the solution is Hypotonic. Water molecules leave the cell from the outside in this solution.If the solute concentration is higher than that of another solution then the solution is Hypertonic. So, water molecules enter the cell from the outside in this solution.Isotonic solution is the one that has the same solute concentration as another solution.In a hypotonic solution, cells will expand, whereas, in a hypertonic one, they will shrink.6. Hypertonic
7. Isotonic
8. Hypotonic
9. Hypertonic
10. Hypotonic
11. Hypotonic
12. Hypotonic
13. Hypertonic
14. Hypertonic
15. Isotonic
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When sediments are made is the lithosphere being broken down or is new lithosphere being created?
Yes, the lithosphere are being broken down. When sediment are made lithosphere are being broken into separate sections called plates.
What is lithosphere?Lithosphere is defined as the outermost part of the earth that is made up of the mantle and the crust.
Above the lithosphere is the earth's atmosphere while beneath it is the asthenosphere.
The importance of the lithosphere to life on earth include the following:
provide us forests, grasslands for grazing land for agriculture and human settlements and also rich source of minerals.According to geologists, the lithosphere is constantly moving in slow motion which leads to the formation of sediments. When this occurs, the lithosphere is being broken down into separate sections called plates.
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When the ribosome reaches a uga, uag, or uaa codon on the mrna, it halts because none of these codons has a corresponding trna. these three sequences are called _____ codons.
When the ribosome reaches a uga, uag, or uaa codon on the mRNA, it halts because none of these codons has a corresponding tRNA. these three sequences are called stop codons.
What are stop codons?
A stop codon is a single triplet of nucleotides that marks the completion of protein production. You can see the line of messenger RNA passing through a ribosome if you are familiar with how proteins are generated within cells (do ribosomes and transfer RNA sound familiar?). The ribosome and transfer DNA are informed by a stop codon that the process can end and the new polypeptide chain can be released. Continue reading if ribosomes and transfer DNA are still a mystery or go to the protein synthesis page.
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This transmembrane membrane protein assists molecules in crossing the plasma membrane by forming a channel. such proteins are known as?
Membrane pores within a lipid bilayer are known as transmembrane channels. Protein complexes that traverse the membrane or peptides can generate the channels.
What is transmembrane membrane protein?At the point where cells and the outside world meet, transmembrane proteins mediate the transmission of signals between them. They also carry out numerous crucial cellular biological processes.
Membrane transport proteins fall into two categories: carriers and channels.
The lipid bilayer is traversed by both of them in continuous protein routes.
Therefore, transmembrane membrane protein assists molecules in crossing the plasma membrane.
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PLEASE HELP FAST
Describe the effects the 3 limiting factors had on the cricket frog population.
Answer: decrease
Increase
Increase
Explanation:
1. When the predators population is increased, there will be high risk to the cricket frog from these predators as they may start attacking them rigorously and ultimately lead to a sharp decline in their population.
2. Pollution is a favorable factor that causes cricket frogs to flourish and increase in number. Thus the higher the pollution level, the higher will be the population of cricket frog
3. Food sources will reduce the competition with in the cricket frog species and hence there population will increase.
colchicine, a chemical extracted from the autumn crocus (colchicum autumnale), inhibits the formation of microtubules. mitotic cells exposed to colchicine will therefore be arrested at .
It may be extracted from plant Colchicum autumnale and C. luteum. Colchicines save you spindle formation at some stage in mitotic metaphase. Thus, it prevents the separation of chromosomes at some stage in anaphase stage.
Colchicine is used to save you gout assaults (sudden, intense ache in a single or greater joints because of abnormally excessive stages of a substance known as uric acid withinside the blood) in adults. Colchicine (Colcrys) is likewise used to alleviate the ache of gout assaults once they occur.
Colchicine is an vital mutagen that works through stopping the microtubules formation and doubles the range of chromosomes. It is usually used to expand polyploid flora and features as a mitotic poison through generating many mutagenic results on flora.
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Which best explains the difference between a ball-and-stick model of a chemical compound and a space-filling model?
Ball-and-stick models can show compounds in three dimensions, but space-filling models cannot.
Space-filing models can show compounds in three dimensions, but ball-and-stick models cannot.
TIME REMAINING
01:24:59
Ball-and-stick models show the bonds between atoms, but not the relative sizes of atoms. Space-filling models show
the relative sizes of atoms, but not the bonds between atoms.
hp
O Space-filling models show the bonds between atoms, but not the relative sizes of atoms. Ball-and-stick models show
the relative sizes of atoms, but not the bonds between atoms.
Answer: Ball-and-stick models show the bonds between atoms, but not the relative sizes of atoms.
Explanation:
This is because both the ball and stick are combined this shows the combination between atoms.
A nuclear power plant is suspected of impacting a local watercourse. since nuclear reactors typically threaten water systems, what action should be taken first?
The first action to be taken if a nuclear power plant is suspected of impacting a local watercourse is that the water supply is suspended.
If a nuclear facility is suspected of impacting local water storage, the water delivery should be temporarily halted. The contamination of water course by a nuclear power plant renders such watercourse not potable for consumption. In situations like this, the consumption of such water can negatively impact the health of organisms in that environment. The damage done by nuclear plant to water bodies have a far-reaching effect as it causes serious harmful effect to organisms of aquatic habitat. Hence, the first line of action in this kind of situation is to temporarily halt the supply or the running of such water course.
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Eukaryotic cells store their dna in the form of linear chromosomes. This creates problems for replication of dna at the ends of the chromosomes because.
Eukaryotic cells store their DNA in the form of linear chromosomes. This creates problems for the replication of DNA at the ends of the chromosomes because of the fact that DNA polymerase can only synthesize DNA in a 5' to 3' orientation.
The family of enzymes that catalyze the synthesis of DNA molecules from nucleoside triphosphates, the basic building blocks of DNA, includes DNA polymerase. These enzymes, which are required for DNA replication, typically function in groups to divide an initial DNA duplex into two identical copies.
DNA polymerases' major function is to efficiently and properly replicate the genome in order to maintain the genetic code and ensure that it is faithfully passed down through the generations. While other DNA polymerases are primarily involved in DNA repair and translesion DNA synthesis, the third polymerase, Pol III, is responsible for duplicating the chromosomal DNA.
There are five DNA polymerases found in eukaryotic cells: and. The polymerase enzyme, which is found in mitochondria, is in charge of replicating mitochondrial DNA. The remaining four enzymes are thought to be involved in nuclear DNA replication because they are found in the nucleus.
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Mitochondria and chloroplasts have their own unique dna. Ribosomes in mitochondria and chloroplasts are similar to those in bacteria. Mitochondria are formed by binary fission. These statements together form the basis of what theory?.
Answer:
Endosymbiosis theory: the symbiosis of a free-living organism that eventually got trapped in eukaryotic cells
Explanation:
Bones are classified as one of four types based on their shape. the bones of the cranium are examples of?
The bones of the cranium are examples of flat.
The cranium is made up of facial bones and cranial bones, which surround and guard the brain (bones that form the eye sockets, nose, cheeks, jaw, and other parts of the face). The spinal cord attaches to the brain through a hole at the base of the skull. also known as skull. They are not spherical; they are flat. The skull and rib bones serve as examples. Although flat bones have marrow, they lack a cavity for the bone marrow.Your skull's bones support your face while also enclosing and shielding your brain. Your skull contains a large number of flat bones. The frontal bone is one of these.To learn more about bones.
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Mitochondria contain membranes that are folded to create compartments known as cristae. cristae increase the surface area of the inner mitochondrial membrane, so more atp can be produced.
Mitochondria possesses double membrane as its covering. The outer easy floor and the internal membrane bureaucracy infoldings known as as cristae, which will increase floor vicinity for extra formation of electricity withinside the shape of ATP.
The internal membrane of the mitochondrion folds inwards, forming the cristae. This folding permits a extra quantity of membrane to be packed into the mitochondrion. The records on this look at display that subunits e and g of the mitochondrial ATP synthase are concerned in producing mitochondrial cristae morphology.
Mitochondrial cristae are the folds in the internal mitochondrial membrane. These folds permit for extended floor vicinity wherein chemical reactions, which includes the redox reactions, can take place.
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chemical equation for alcoholic fermentation.
Answer:
Glucose ---> Ethanol + Carbon Dioxide
The human population has changed in ways that are similar to other populations. How has the human population changed since it first appeared on earth?.
The human population has changed since it first appeared on earth as The b. population has generally increased, and at rates that have varied over time.
Humans, as well as other populations, have changed since their appearance on earth. Some populations became extinct as they were not able to cope with the environmental changes whereas other became more adaptable and increased in number over time.
The human population has also increased with the passage of time. However, the increase in the rate of the human population was not a stable one. At some times in the past, the population number declined due to environmental factors such as the eruption of a disease etc.
However, with the passage of time, humans have managed to adapt themselves to the changing environmental conditions and their population is increasing rapidly.
Although a part of your question is missing, you might be referring to this question:
The human population has changed in ways that are similar to other populations. How has the human population changed since it first appeared on earth?
a. The population has generally increased at a relatively constant rate
b. the population has generally increased, and at rates that have varied over time
c. The population increases rapidly until it reaches carrying capacity, where it has remained for thousands of years
d. The population increases rapidly until it reaches carrying capacity, and then decreased at a constant rate
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Amoebas live all their lives:
on land
in water
in the air
water
Hope this helps.
I needed 20 characters long here.. [ignore this]
the three domains of the woese-fox system include the true bacteria in domain bacteria, the extreme microbes in domain, and the eukaryotic organisms in domain.
The three domains of the Woese-Fox system include the true bacteria in domain bacteria, the extreme microbes in domain archaea, and the eukaryotic organisms in domain eukarya.
Archaea is the domain that involves the organisms which are called extremophiles. They are called so because they are not found in normal environments. Their habitats are salty lakes, methane producing areas and hot springs. The examples include: methanogens, halophiles, etc.
Eukarya is the domain which possesses all the eukaryotic organisms. These are the organisms that have cells with well-developed nucleus and cell organelles. The examples of such organisms are; plants, animals, humans, fungi, etc.
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Which action would most likely lead sientist to change or imporove existing scientific theory?
The action that would most likely lead scientists to change or improve existing scientific theory is the emergence of new empirical evidence that may be used to make different predictions than those based on the original theory.
What is a scientific theory?A scientific theory may be defined as a body of knowledge that is well sustained by empirical (experimental) evidence and therefore it can be used to make predictions about questions in the real world.
A scientific theory may change in the light of new empirical evidence that leads to the generation of new hypotheses and make new predictions.
In conclusion, the action that would most likely lead scientists to change or improve existing scientific theory is the emergence of new empirical evidence that may be used to make different predictions than those based on the original theory.
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the diagram represents apparatus used to investigate osmosis
pls help pls pls pls
Answer:
the solution in the tube will rise.
Explanation:
water molecules move across the semipermeable membrane into the tube containing the starch solution. However the starch molecules are too large to pass across the semipermeable membrane hence remain in the tube.
Stress can cause an increase in cortisol which can cause many bodily responses, such as increased heart rate, slowing.of
digestion and sweating. This stress hormone can be released when you encounter or experience something potentially
life threatening, like encountering a bear.
Once the stimulus (bear) is removed, the body systems will return to their
normal state.
Create a feedback loop diagram that illustrates the body's response to encountering a bear.
Answer: 1. Bear --> 2. Increase in cortisol --> 3. Increased heart rate --> 4. Slowing of digestion --> 5. Sweating --> 6. Bear is removed --> Body returns to normal
Hope this is of use to you!
Due to increase in hormones, Bear --> 2. Increase in cortisol --> 3. Increased heart rate --> 4. Slowing of digestion --> 5. Sweating --> 6. Bear is removed --> Body returns to normal.
What are the functions of hormones?Hormones are are the body's chemical messengers, sending signals into the bloodstream and tissues. Hormones work slowly, over time, and affect many different processes, including growth and development, metabolism – how your body gets energy from the foods you eat- sexual function, reproduction, and mood.
Hormones affect everything from blood sugar to blood pressure, growth and fertility, sex drive, metabolism, and even sleep. Their influence goes as far as changing the way we think and act day to day.
It's true that hormone imbalances can be associated with many problems, such as period problems, unwanted hair growth, fertility struggles, weight gain, and even difficulty sleeping. You should absolutely talk to your doctor about these things.
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what is unusual about organisms in the domain archaea? their rate of reproduction is very fast. their rate of reproduction is very fast. they are complex, multicellular organisms. they are complex, multicellular organisms. they live in extreme environmental conditions. they live in extreme environmental conditions. they are very large.
The unusual about organisms in the domain Archaea is that they live in extreme environmental conditions.
What is archaea?
Single-celled creatures fall under the realm of archaea (Singular archaeon). These microbes are prokaryotes because they lack cell nuclei. Although originally given the name archaebacteria (in the Archaebacteria kingdom), archaea were initially categorized as bacteria.
Prokaryotic organisms called archaea have evolved to exist in the most hostile circumstances where no other living thing can. Extremophiles are a group of archaea that have evolved to harsh settings like geysers, extreme cold, alkaline, and acidic temperatures.
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ee mj, bransford rj, bellabarba c, chapman jr, cohen am, harrington rm, et al: the effect of bilateral laminotomy versus laminectomy on the motion and stiffness of the human lumbar spine: a biomechanical comparison.
To check variations in movement styles and lumbar backbone stiffness after bilateral laminotomy as opposed to laminectomy.
Summary of heritage information Spondylolisthesis after facet-sparing laminectomy has been mentioned with a frequency of 8% to 31%. Bilateral laminotomies had been proven to be powerful in decompressing the backbone, with out resection of the posterior osteo-ligamentous complex. We hypothesize that bilateral laminotomies set off appreciably much less androgenic hypermobility and much less stiffness discount than a conventional facet-sparing laminectomy withinside the lumbar backbone.
These information display that bilateral laminotomies set off appreciably much less hypermobility and much less stiffness discount in comparison with a complete laminectomy. The renovation of the critical posterior osteo-ligamentous systems can also additionally offer a stabilizing impact in stopping postdecompression spondylolisthesis.
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Which type of neuron is responsible for
detecting environmental changes?
A. interneurons
B. motor neurons
C. sensory neurons
'D. transfer neurons
give examples of substances that decomposers unable to break down?
Answer:
Plastic bottles are one of the biggest ones. Tin and metal also can't along with aluminum.
Explanation:
Hope this helps!
Intro
Use the image and the drop-down menus to match the
parts of an ecosystem to each description
The answer is within the attached image based on ecosystem:
What is an ecosystem?An ecosystem is a region where a bubble of life is created by plants, animals, and other species interacting with the weather, environment, and other factors. Abiotic variables, or nonliving components, coexist with biotic components in ecosystems. Plants, animals, and other species are biotic factors.
Wild flora and animals may live there and find habitat. It encourages different food webs and food chains. It supports life and regulates crucial ecological processes. played a part in the transfer of nutrients between biotic and abiotic elements.
An ecosystem's three main qualities are as follows: Ecology's fundamental structural and functional unit is it. An ecosystem's structure and species diversity are connected.
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The circulatory system carries the waste from throughout the organism to them
The circulatory system carries the waste from throughout the body to the excretory system.
In the circulatory system, the renal arteries specifically function to collect the deoxygenated blood and other waste materials from all the different parts of the body and carry it to the kidneys for filtration.
How are the circulatory system and excretory system related?
Due to the fact that the excretory system filters the circulatory system's blood, the excretory system and the circulatory system work in tandem. the primary organ of the kidneys' excretory system. Kidneys filter blood from the circulatory system as it travels through them.
Through the renal artery, blood enters your kidney. Up until the blood reaches the nephrons, this huge blood channel divides into smaller and smaller blood vessels. Your blood is filtered by the glomeruli, which are microscopic blood vessels, in the nephron before leaving your kidney through the renal vein.
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A network of tubules that synthesize and transport materials needed for cellular growth and other functions.
A network of tubules that synthesize and transport materials needed for cellular growth and other functions is Smooth Endoplasmic Reticulum
What kind of tubules produce proteins?
Endocytic reticulum (ER)
Large and active, the endoplasmic reticulum (ER) plays a variety of functions in the cell, including calcium storage, protein synthesis, and lipid metabolism. Different domains, which are composed of tubules, sheets, and the nuclear envelope, carry out the various ER activities.
Many concerns remain regarding how the ER alters form in response to cellular signals, cell type, cell cycle state, and during organism development.
A number of proteins that contribute to the overall architecture and dynamics of the ER have been discovered. In this section, we go through what is known about the ER's dynamics, what is yet unknown, and how coordinated responses add to the levels of control in this dynamic organelle.
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During the prophase stage, loosely arranged stands of chromosomes become coiled, shortened and distinct.
True or False?
According to the research, the correct option is false. During the prophase stage, loosely arranged stands of chromosomes don't become coiled, shortened and distinct.
To find the correct option amongst all other options, we need to know more about prophase stage and which characteristics it has.
What is the prophase stage?The first phase of cell division, in which the chromosomes become visible as isolated entities is called the prophase stage. Prophase stage is related to the disintegration of the nuclear membrane and the fixation of the chromosomes in the spindle. In this stage, the chromosomes thicken, the envelope of the nucleus breaks down, and the nucleoli are shared in the cytoplasm, becoming ribosomes.Therefore, we can conclude that according to the research, the correct option is false. During the prophase stage, loosely arranged stands of chromosomes don't become coiled, shortened and distinct.
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true or false air can be weighed