During cell division, mitosis ensures that the newly formed daughter cells are equal and identical in all ways, including size.
Mitosis is the process by which a single cell divides into two identical daughter cells. It involves a series of carefully regulated steps that ensure the accurate distribution of genetic material and cellular components. One of the key aspects of mitosis is the equal division of cellular contents between the daughter cells.
Throughout the stages of mitosis, the parent cell's DNA is replicated, and the replicated chromosomes align and separate to form two sets of chromosomes. The cell then undergoes cytokinesis, where the cytoplasm divides, and two separate daughter cells are formed. Importantly, during cytokinesis, the cellular contents are distributed equally between the daughter cells, ensuring that they are identical in terms of size and cellular components.
This equal distribution of cellular material is essential for the proper functioning of the daughter cells and their ability to carry out their respective functions. It ensures that each daughter cell receives the necessary resources and genetic information to function independently.
In summary, during cell division through mitosis, the newly formed daughter cells are equal and identical in all ways, including size, due to the precise processes of DNA replication, chromosome alignment, and equal distribution of cellular contents.
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difference between physical and non physical quantity
What was a main flaw in Dalton's theory?
Answer:
Explanation:
The main flaw in Dalton’s theory – i.e. the existence of both molecules and atoms – was later corrected in principle in 1811 by Amedeo Avogadro. Avogadro proposed that equal volumes of any two gases, at equal temperature and pressure, contain equal numbers of molecules.
Clear-winged dragonflies live longer and can reproduce
many more times than yellow-winged dragonflies.
How is this population of dragonflies most likely to change as a result of this
difference?
O A. Dragonflies with yellow wings will evolve into ones with clear
wings
O B. Clear-winged dragonflies will become more common over time.
O C. The number of dragonflies will shrink until they become extinct.
O D. Yellow-winged dragonflies will become more common over time.
What does the circulatory system do?
A. Sends hormones to the body
O B. Moves blood around the body
C. Brings oxygen into the body
O D. Defends against invaders
Moves blood around the body
The circulatory system moves blood around the body. Therefore, option (B) is correct.
What is circulatory system?The circulatory system, also known as the cardiovascular system, is responsible for the circulation and transportation of blood, oxygen, and nutrients throughout the body. It includes the heart, blood vessels, and blood. The heart pumps blood to the lungs to become oxygenated, and then circulates the oxygen-rich blood to the rest of the body through arteries.
Veins carry deoxygenated blood back to the heart, where it is pumped to the lungs to receive oxygen. The circulatory system also plays a role in removing waste products from the body, such as carbon dioxide, and helps to regulate body temperature, pH balance, and fluid balance. The circulatory system is essential to maintaining the proper functioning of all cells, tissues, and organs in the body.
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what percent of the ocean do density currents make up
Only 8% of all ocean water is restricted to the upper 400 m (1,300 ft) and is separated from the lower areas by different temperatures and salinity impacting water density, which determines each ocean zone.
Surface currents are ultimately controlled by wind, and because they only involve surface water, they only effect roughly 10% of the ocean's volume. Other large ocean currents, however, are independent of the wind and include water motions in the remaining 90% of the ocean.
Climate is affected by ocean currents. These seas account for around 10% of all water in the ocean. These are the top 400 meters of the ocean. These seas are moving.
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From the fishbone diagram activity, pick three categories that you reflected upon. Write a one-paragraph reflection to discuss why these categories contribute to or hinder sustainability, and how they relate to the phenomenon.
I chose three topics for reflection from the fishbone diagram activity: "Technology," "Education," and "Policy."
These categories are strongly related to the phenomenon of building a sustainable future and play an important role in promoting or inhibiting sustainability. Three important areas that greatly help or hinder sustainability are technology, education, and the law. They are interlinked and necessary to deal with the opportunities and challenges of establishing a sustainable future.
We can encourage the adjustments needed to create a more sustainable world by developing and using technology responsibly, encouraging sustainability education, and establishing strong policy frameworks.
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For each missing word or phrase, circle the choice that correctly completes the
sentence
The Devil's Hole water system is part of a large underground aquifer in Death
Valley National Park. After the last lce Age, around 10,000 years ago, as the
water dried up and the land tumed to desert, separate pools of water formed.
(Biomes / Species / Populations) of pupfish eventually became isolated in a
few of these water holes and springs and then evolved different (adaptive /
disruptive / stabilizing) traits to become distinct species over time. This kind of
(polygenic drift / genetic drift / environmental effect) likely occurred because
each water pool was inhabited by a few surviving individuals of the original larger
population. A change in (habitat conditions /
genetic equilibrium / allele frequency following a large reduction in
population size is called a (bottleneck effect/polvaenetic effect/
environmental effect)
Answer:
Biomes Adaptive Polygenic Drift Genetic Equilibrium Environmental Effect
Explanation:
Lit
In saccharomyces cerevisiae, a cross between a haploid suppressive petite mutant and a haploid wild type results in petite diploid progeny. this is because:
Saccharomyces cerevisiae, a cross between a haploid suppressive petite mutant and a haploid wild type results in petite diploid progeny because of cytoplasmic inheritance.Petite mutants are strains of yeast that have lost some or all of their mitochondrial DNA, resulting in a deficiency in mitochondrial respiration and a reduced ability to produce ATP through oxidative phosphorylation. Suppressive petites are a specific type of petite mutant that are able to grow on non-fermentable carbon sources, despite their mitochondrial deficiency, due to the presence of nuclear suppressors that partially restore their respiratory function.
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1
2
TIME REMAININ
59:15
About how long ago did our solar system start to form?
O About 5 million years ago
O About 14 million years ago
About 5 billion years ago
O About 14 billion years ago
Answer:
About 5billion years ago is the correct option.
Explanation:
Hope this will help you :)
Answer:
About 5 billion years ago
Explanation:
A car is accelerating from rest at a constant rate. The net force acting on the car is increasing true or false
Answer:
False
Explanation:
because if it were increasing then the car would be increasing
I hope this helped you
Which is a part of the cell theory?
Answer:
1.All living things are composed of cells.
2.Cells are the basic units of structure and function for living things.
3.All cells come from pre-existing cells. Also, organisms grow by “adding on more cells” NOT by increasing the size of their cells.
A mosquito can transmit a viral pathogen into humans. What is the mode of transmission of the virus in this instance
What is a type of rock made from fragments or sediments compacted or cemented together?
Answers:
sandstone, shale, limestone,Conglomerates, breccias and more.
Explanation:
sediments are loose materials, such as rock fragments, mineral grains, and the remains of once living plants and animals, that are formed by weathering and erosion, and have been moved by wind, water, ice, or gravity
sedimentary rocks:forms when sediments are compacted and cemented together, when minerals form from solutions, or when water evaporates leaving crystals behind. The sediments in sedimentary rock are often held together with natural cements. Examples of sedimentary rocks include sandstone, limestone, and rock salt.
detrital sedimentary rocks:These are made from the broken fragments of other rocks. These loose fragments are compacted and cemented together to form solid rock. Detrital sedimentary rocks are named according to the shape and size of the sediments that form them. Shale, siltstone, sandstone, and conglomerate are examples.
organic sedimentary rocks: are sedimentary rocks made from the remains of once-living things. One of the most common organic sedimentary rocks is fossilrich limestone. Animals such as mussels, clams, corals, and snails make their shells from CaCo3 which eventually becomes calcite. When they die their shells accumulate on the ocean floor and are cemented together into fossil-rich limestone. Examples include fossil-rich limestone, coal, and chalk.
chemical sedimentary rocks: are chemical sedimentary rock forms when dissolved minerals come out of solution. For example, when lakes or seas evaporate. These rocks are not made from existing rocks like many other sedimentary rocks. Examples include gypsum, limestone, and rock salt.
cementation sedimentary rock forming process in which sediment grains are held together by natural cements that are produced when water moves through rock and soil.
conglomerate a type of detrital sedimentary rock that forms from large rounded sediments over 2mm in size. The roundness of sediment particles depends on how far they have been moved by wind or water. Breccia differs from conglomerate because one has rounded sediments and one has sediments with sharp angles.
breccia a type of detrital sedimentary rock that forms from large sediments with sharp angles that are over 2mm in size. The roundness of sediment particles depends on how far they have been moved by wind or water. Breccia differs from conglomerate because one has rounded sediments and one has sediments with sharp angles.
Type of radiation that is able to travel through space as waves from the Sun to Earth is called
Answer:
sunrays
Explanation:
hope it helps
Answer:
I think it is radioactive.
A certain lottery has 37 numbers. In how many different ways can 5 of the numbers be selected? (Assume that order of selection is not important.) There are different ways the numbers can be selected (Simplify your answer.)
A certain lottery has 37 numbers. 37,449 different ways can 5 of the numbers be selected.
We may utilize the idea of combinations to determine how many distinct ways there are to choose 5 integers from a set of 37.
Combination formula is as follows:
nCk = n!/(k!*(n-k))!
Here, out of a possible 37 integers, we wish to choose 5 of them. As a result, we can compute it as:
37C5 = 37! / (5! * (37-5)!)
Simplifying the phrase:
37C5 = 37! / (5! * 32!)
Now let's figure out the factorials:
37! = 37 × 36 × 35 × 34 × 33 × 32!
Eliminating the common terms:
37C5 = (37 × 36 × 35 × 34 × 33) / (5 × 4 × 3 × 2 × 1)
figuring out this expression:
37C5 = 37,449
Therefore, assuming the sequence of selection is irrelevant, there are 37,449 possible ways to choose 5 numbers from a set of 37.
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why are certain epithelial cells called pseudostratified columnar epithelium?
Pseudostratified columnar epithelium is a type of epithelium composed of cells with varying heights, giving the appearance of multiple layers, or strata, when viewed under a microscope.
However, the cells are actually all connected to the basement membrane and are the same height. The nuclei of the cells are arranged in a single layer, giving the false impression of multiple layers. This type of epithelium is found lining the respiratory tract, where it helps filter particulate matter and protect the body from airborne pathogens.
It is also found in the male vas deferens, where it helps to propel sperm forward and move them along the reproductive tract. The cilia on the surface of pseudostratified columnar epithelium help to move secretions and debris out of the respiratory tract, aiding in the body’s natural defense against infection.
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Organisms under the taxonomic group Animalia are
A all single-celled autotrouphs
B sometimes mulit-celled autotrophs
C sometimes single-celled heterotrophs
D all multI-celled heterotrophs
Answer:
D all multI-celled heterotrophs
Explanation:
All living with organisms have been classified into kingdoms. One notable kingdom is Kingdom ANIMALIA. Members of kingdom Animalia are characterised by their HETEROTROPHIC nature i.e. they depend on other organisms for energy source.
Animals are all multicellular i.e. more than one cell and eukaryotic (membrane-bound nucleus). They are heterotrophs, which obtain their food either by saprophytism, predation, etc. Hence, according to this question, all members of the taxonomic group Animalia are multI-celled heterotrophs.
Answer:D
Explanation:
:11
Brown, L. R. et al. (1978). Effects of selected caries preventive regiments on microbial changes following irradiation induced xerostomia in cancer patients. Microbial Aspects of Dental Caries, pp. 275-290.
1. What clinical phenomena did this study investigate?
2. Briefly describe the key elements of this method.
3. What are the most significant microbial changes in the xerostomatic patient and what
do you think is the clinical relevance?
3. Since oral hygiene alone is not effective in controlling caries in the xerostomatic
patient what other things can be done to slow the progression development of caries.
1. This study investigated the effects of selected caries preventive regimens on microbial changes following irradiation-induced xerostomia in cancer patients.
2. The key elements of this method include selecting cancer patients with xerostomia as the study subjects, applying various caries preventive regimens to these patients, and analyzing the microbial changes in their mouths.
3. The most significant microbial changes in the xerostomatic patient include a decrease in saliva flow, changes in the oral microbiota, and an increase in the number of acid-producing bacteria. The clinical relevance of these changes is that they can lead to an increased risk of dental caries and other oral health problems.
4. Besides oral hygiene, other things that can be done to slow the progression and development of caries in the xerostomatic patient include using fluoride treatments, using saliva substitutes, increasing water intake, and avoiding sugary and acidic foods and drinks. These measures can help to maintain a healthy oral environment and prevent further damage to the teeth.
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Which of these are analogous concepts from touch, vision, and hearing, respectively?
A. fast adaptation; dark adaptation; auditory adaptation
B. two-point threshold; rod and cone adaptation; two-tone suppression
C. megnalimbic coding; visualimbic coding; audiolimbic coding
D. somatotopic mapping; retinotopic mapping; tonotopic mapping
D. Somatotopic mapping; retinotopic mapping; tonotopic mapping.
Somatotopic mapping refers to the organization of the somatosensory system, where sensory information from different body parts is represented in an ordered manner on the somatosensory cortex. Retinotopic mapping refers to the organization of the visual system, where visual information from different regions of the retina is represented in a spatially organized manner in the visual cortex. Tonotopic mapping refers to the organization of the auditory system, where different frequencies of sound are represented in an orderly manner along the auditory pathway, from the cochlea to the auditory cortex. These concepts highlight the idea of spatial organization and mapping of sensory information in the respective sensory systems. They demonstrate how different areas of the brain are dedicated to processing specific aspects of touch, vision, and hearing, allowing for efficient perception and interpretation of sensory stimuli in each modality. are somatotopic mapping, retinotopic mapping, and tonotopic mapping.
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Which of the following would decrease the rate of photosynthesis?
6C02 + 6H2O +(sunlight) - 602 +CsHi20
Answer:
C
Explanation:
took the quiz
what was the outcome of the experiment that reconstituted two different strains of tobacco mosaic viruses that had different infection characteristics?
The experiment that reconstituted two different strains of tobacco mosaic viruses that had different infection characteristics produced recombinant viruses that have hybrid properties.
A recombinant virus is a virus that has been created by inserting genes from one virus into another. Recombinant viruses can be used to develop new vaccines, antiviral drugs, and other medical treatments. By combining genetic material from different viruses, scientists may produce viruses with novel properties, such as higher virulence or improved infectivity.
The outcome of the experiment that reconstituted two different strains of tobacco mosaic viruses that had different infection characteristics was the production of recombinant viruses that have hybrid properties. The recombinant viruses had characteristics that were intermediate between the two original viruses, and they could infect tobacco plants that were resistant to either of the parent viruses.
In other words, the experiment showed that different strains of viruses can exchange genetic material and produce novel viruses that have unique characteristics. This can have important implications for the study of virology and for the development of new treatments and vaccines.
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Which molecules do cells need to release energy? (Can you make it look like 7th grade writing please well if you can)
Answer:
Cells need oxygen and glucose.
Without oxygen, electron transport chain cannot take place and the cells cannot get the energy they need (since the cell uses oxygen to break down glucose which os what produces energy). When the cells cannot perform their function, they die.
Damage to the capillaries throughout the body can directly cause which problem?
A
Inability of the body to absorb nutrients from food
B
Inability of the body to send oxygen to tissues
C
Inability of the body to release food energy
D
Inability of the body to receive information from the legs
.
Answer:
B. Inability of the body to send oxygen to tussues
list two examples of biotechnology that involve recombinant dna technology
Recombinant DNA technology is a technique that involves joining DNA molecules from two different sources, and is commonly used in biotechnology.
Two examples of biotechnology that involve recombinant DNA technology are:1. Genetic engineering of crops:In agriculture, recombinant DNA technology has been used to create genetically modified crops that are resistant to pests and diseases, as well as to produce higher yields. For example, scientists have used recombinant DNA technology to insert genes into crops that make them resistant to herbicides or to produce higher levels of vitamin A.2. Production of pharmaceuticals:Recombinant DNA technology is also used to produce pharmaceuticals, such as insulin. Scientists can use recombinant DNA technology to produce human insulin in bacteria, which can then be harvested and used to treat diabetes. Other pharmaceuticals produced using recombinant DNA technology include vaccines, growth hormone, and clotting factors.
Genetic engineering of crops:In agriculture, recombinant DNA technology has been used to create genetically modified crops that are resistant to pests and diseases, as well as to produce higher yields.
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the veins that receive lymph from the two terminal lymphatic ducts are the
The veins that receive lymph from the two terminal lymphatic ducts are known as the subclavian veins. These veins play a crucial role in returning lymphatic fluid back to the bloodstream.
The lymphatic system is responsible for maintaining fluid balance and immune function in the body. Lymph, a clear fluid that contains immune cells and waste products, circulates through a network of lymphatic vessels. Eventually, the lymphatic vessels converge into larger vessels called lymphatic ducts.
There are two main lymphatic ducts in the body: the right lymphatic duct and the thoracic duct. The right lymphatic duct receives lymph from the upper right side of the body, including the right arm and right side of the head and neck. The thoracic duct, on the other hand, collects lymph from the rest of the body.
The terminal ends of these lymphatic ducts deliver lymph into the venous system. Specifically, the lymph from the right lymphatic duct enters the right subclavian vein, while the lymph from the thoracic duct enters the left subclavian vein. The subclavian veins are large veins located beneath the collarbone that return blood from the upper extremities back to the heart.
In summary, the veins that receive lymph from the two terminal lymphatic ducts are the subclavian veins. These veins play a vital role in returning lymphatic fluid, along with its immune cells and waste products, back to the bloodstream for further circulation throughout the body.
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A lot of points match the definition with the correct keyword
Answer:
1.3
2.4
3.2
4.5
5.1
Explanation:
A system is a group of many simple parts and processes that influence or interact with each other. The human body is an example of a system.
Doctors study the human body in order to solve problems in the system. Why do doctors often keep track of what enters and leaves the body system?
A.
The body system is too complex to understand.
B.
The body system is affected by its surroundings.
C.
The body system is independent of its surroundings.
D.
The body system does not have boundaries.
Answer:
B
The body is affected by it's surroundings
Which is the lowest level of environmental organization that would include the water quality and air temperature in an area?
The lowest level of environmental organization that would include water quality and air temperature in an area is the ecosystem as it play a crucial role in shaping the biodiversity and ecological processes within that particular environment.
An ecosystem is a community of living organisms (biotic factors) interacting with their physical environment (abiotic factors) in a given area. It encompasses the interactions between various components, such as plants, animals, microorganisms, water, soil, and air. Within an ecosystem, water quality and air temperature are important abiotic factors that directly influence the organisms residing within it. Changes in water quality, such as pollution or temperature variations, can impact the survival and distribution of aquatic species. Similarly, air temperature affects the behavior, growth, and reproduction of both plants and animals.
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Which feature of the model represents stored chemical energy
The sugar molecule represents the most stored chemical energy. Thus, the correct answer is Option B.
Sugar (glucose, C₆H₁₂O₆) is a biological molecule that stores energy in its chemical bonds, not the molecule that initiates the process of cellular respiration During cellular respiration, glucose is broken down in a series of chemical reactions to produce energy ATP (adenosine triphosphate).
The process of cellular respiration begins at the stage of glycolysis, where glucose in the cytoplasm of the cell is partially broken down into pyruvate molecules and then the pyruvate molecules are broken down again in the presence or production of oxygen (aerobic respiration). fermentation in the absence of oxygen depending on whether oxygen is present
During aerobic respiration, pyruvate enters mitochondria and undergoes the citric acid cycle (also known as the Krebs cycle) and the electron transport chain These processes release energy from glucose chemical bonds to produce more ATP.
Therefore, sugar (glucose), although it stores energy in its chemical bonds, is not the molecule that initiates cellular respiration. Instead, during cell respiration, glucose is broken down and energy is released in the form of ATP.
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Complete question:
Which feature of the model represents the most stored chemical energy?
A. The oxygen gas molecule
B. The sugar molecule
C. The water molecule
D. The carbon dioxide molecule
HELP PLEASE!!!
ASAP
How do bacterial species build antibiotic resistance? Do viruses do the same thing? Explain your answer.
Bacteria can change its DNA in reproduction or transfer various different genes to build resistance. Viruses can do the same. Both will naturally change and improve over time because the DNA is always changing.The bacteria can also mutate to better help it in its environment.