A teacher performing a demonstration finds that a piece of cork displaces 24 mL of water. The piece of cork has a mass of 6 g. What is the density of the cork?
Answers
Answer:
0.25 g/cm³
Explanation:
Density is the ratio of mass to volume:
(6 g)/(24 mL) = 0.25 g/mL = 0.25 g/cm³
_____
1 mL = 1 cm³. Units of density in the cgs unit system are g/cm³.
Related Questions
most marine algae are limited to depths above 100 meters; red algae have been observed growing at depths of over 250 meters. question 71 options: true false
Answers
The given statement "Most marine algae are indeed limited to depths above 100 meters, while red algae have been observed growing at depths of over 250 meters" is true because red algae have adaptations that allow them to survive in lower light conditions.
Red algae, scientifically known as Rhodophyta, are adapted to deeper waters due to their unique pigments that allow them to capture and utilize light at greater depths. These pigments, such as phycoerythrin and phycocyanin, enable red algae to absorb blue and green light, which can penetrate deeper into the ocean.
This adaptation allows red algae to thrive in lower light conditions compared to other types of algae, which are more restricted to shallower depths where sunlight is more abundant. Thus, red algae are known for their ability to grow at greater depths in the marine environment.
Therefore, the given statement is true.
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difference between the digestive system of amoeba and digestive system of ruminants
Answers
The digestive system of amoeba and ruminants are very different from each other. Amoeba is a unicellular organism that has a simple digestive system, while ruminants are multicellular organisms that have a complex digestive system.
The digestive system of amoeba is intracellular, which means that digestion occurs inside the cell. Amoeba engulf food particles through a process called phagocytosis, in which the cell membrane surrounds and engulfs the food particle, forming a food vacuole. The food vacuole then fuses with lysosomes, which contain digestive enzymes that break down the food particle. The nutrients released by digestion are then absorbed into the cytoplasm of the cell.
In contrast, the digestive system of ruminants is extracellular, which means that digestion occurs outside the cell in a specialized digestive tract. Ruminants have a four-chambered stomach, which allows them to digest plant material that is difficult to break down. The first chamber, the rumen, contains bacteria and other microorganisms that break down the cellulose in plant material. The partially digested food then moves to the reticulum, omasum, and finally the abomasum, where digestive enzymes break down the remaining nutrients. The nutrients are then absorbed into the bloodstream and transported to the rest of the body.
Overall, the digestive system of amoeba is simple and intracellular, while the digestive system of ruminants is complex and extracellular. Ruminantshave evolved a specialized digestive system over time to help them digest tough plant material, while amoeba have a simple digestive system that allows them to absorb nutrients directly into their cells.
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The digestive system of amoeba is intracellular, which means that digestion occurs inside the cell. Amoeba engulf food particles through a process called phagocytosis, in which the cell membrane surrounds and engulfs the food particle, forming a food vacuole. The food vacuole then fuses with lysosomes, which contain digestive enzymes that break down the food particle. The nutrients released by digestion are then absorbed into the cytoplasm of the cell.
In contrast, the digestive system of ruminants is extracellular, which means that digestion occurs outside the cell in a specialized digestive tract. Ruminants have a four-chambered stomach, which allows them to digest plant material that is difficult to break down. The first chamber, the rumen, contains bacteria and other microorganisms that break down the cellulose in plant material. The partially digested food then moves to the reticulum, omasum, and finally the abomasum, where digestive enzymes break down the remaining nutrients. The nutrients are then absorbed into the bloodstream and transported to the rest of the body.
Overall, the digestive system of amoeba is simple and intracellular, while the digestive system of ruminants is complex and extracellular. Ruminantshave evolved a specialized digestive system over time to help them digest tough plant material, while amoeba have a simple digestive system that allows them to absorb nutrients directly into their cells.
Help me plss, I will brainliest
Relate the words Extrusive and Intrusive to the words Exterior and interior. Explain how the meanings of these words help you understand each type of igneous rock.
Answers
Answer:
intrusive igneous rocks cool from magma slowly because they are BURIED beneath the surface extrusive igneous rocks cool from lava rapidly because they form at the surface and the meaning of those words are simple intrusive means inside of something like interior and extrusive means outside which is like exterior
A cell in a multicellular organism receives a signal to increase production of a transmembrane protein found in the cell membrane. Which of the following combinations of structures is expected to be directly involved in the process?
a) Nucleus, chloroplast, cytoskeleton, ribosome
b) Nucleus, ribosome, ER, Golgi complex
c) Lysosome, mitochondria, Golgi complex, cytoskeleton
d) Chloroplasts, nucleus, mitochondria, lysosome
I know that c is wrong, but could someone help explain which is the right one and why c is wrong?
Answers
Answer:
b) Nucleus, ribosome, ER, Golgi complex
Explanation:
"B" is correct because, with protein production, DNA must first be transcripted to RNA in the nucleus, then the RNA travels to a ribosome at the ER to start translation (RNA to amino acid sequence). Finally, it is sent to the Golgi complex to be further processed and/or sorted to be transported to its destination (in this case, it will be sorted to be transported to the cell membrane).
"C" is incorrect: the mitochondria, cytoskeleton, and lysosome do not play a direct role in protein synthesis.
The cytoskeleton is primarily involved with maintaining the structure of the cell along with spindle development in mitosis.The mitochondrion is "the powerhouse of the cell" and is mainly involved with cellular respiration: the process of converting glucose to energy (ATP).Lysosomes' typical function is to break down excess/worn-out organelles and to kill pathogens. Lysosomes have been hypothesized to be part of protein synthesis; however, it has not been confirmed yet.How is an atom different from an element?
Answers
Here you go! (°▽°)
what do fossil fuels hold, what kind of energy do they hold, what is converted into, & what kind of energy
Answers
Answer:
Explanation: Energy gained from burning fossil fuels is converted to electricity and heat in commercial power plants. When fossil fuels are burned carbon and hydrogen react with oxygen in air to carbon dioxide (CO2) and water (H2O). During this reaction heat is released which further amplifies the reaction.
Need help please …..
Answers
Is the correct answer
Write the lyrics of O Ramji bada dukh dina
Answers
Ga sa ga re pa ga re
Re ma pa ni dha, sa ga ma dha pa
Ni re ga pa ma re ma ga sa ga re ni re sa
O Ramji, bada dukh di na
Tere Lakhan ne bada dukh di na - 2
Sudh budh bisraayi meri neend churaayi
Mera mushkil kar diya jeena
Bada dukh di na
Tere Lakhan ne bada dukh di na
O Ramji, bada dukh di na
Voh deepak hai, main jalti hoon - 2
Voh hansta hai, main roti hoon
Mere pyaar ki kadar usse hogi magar
Mujhe zaher padega peena
Bada dukh di na, bada dukh
Many different types of mutations can occur within the body. An individual experiences a mutation that changes a base in
a mRNA strand, but during translation the mRNA strand still creates the same protein. Which type of mutation is
responsible for the change in the mRNA base?
A.silent
B.missense
C.nonsense
D.insertion
Answers
Answer:
A. Silent, The type of mutation responsible for changing a base in the mRNA strand, without changing the coding aminoacid or protein, is called a silent mutation.
Explanation:
In a silent mutation occurs the change of a nitrogenous base in one of the codons that encodes an aminoacid, without changing the aminoacid or altering the structure or function of the protein to be synthesized.
In this type of mutations the change of the base does not mean the change of the aminoacid, because some aminoacids can be coded with more than one codon. In the case of Leucine, the codons that encode it are CUU, CUC, CUG or CUA, so even if a base changes, the final protein will be the correct one.
For the other options:
Missense: the change of the base in the DNA chain implies the change of the codon in the mRNA and of the encoded aminoacid, in that way a structural and functional alteration of the synthesized protein occurs. Nonsense: the change in the nitrogenous base in the DNA leads to the coding of a termination codon, so that the protein is ultimately incomplete. Insertion: in this case there is the addition of more nitrogenous bases to the DNA chain, with respect to the original one.Answer:
Silent
Explanation:
Edge 2021
the pectoral girdle and pelvic girdle are constructed similarly, yet the pectoral girdle is designed for mobility while the pelvic girdle is designed for stability. do you have any thoughts about how the anatomy allows this to happen?
Answers
The pelvic girdle and pectoral girdle are two of the most significant bone structures that support the body and provide the backbone for many bodily functions.
The pelvic girdle and pectoral girdle are two of the most significant bone structures that support the body and provide the backbone for many bodily functions. Although both girdles have a similar structural shape, the pectoral girdle is designed to provide maximum mobility, while the pelvic girdle is built for stability.The design and anatomy of the pelvic girdle allow it to provide excellent support for the lower abdomen and maintain stability in the pelvis. The pelvic girdle, also known as the hip bone, is constructed in a ring-like structure that comprises several bones, including the ilium, pubis, and ischium bones. The ring-like structure and the large surface area of the bones provide ample support to the body while allowing only a minimal amount of mobility.In contrast, the pectoral girdle is designed to provide a vast range of motion to the upper body. The anatomy of the pectoral girdle includes the clavicle and scapula bones. The clavicle bone connects the sternum and scapula bones, allowing for a wide range of movement in the shoulders. The scapula bone, also known as the shoulder blade, is attached to the humerus bone, enabling the arm's movement.The pectoral girdle and pelvic girdle have the same structural shape, but they are anatomically designed for specific purposes. The pelvic girdle is designed to provide stability while limiting movement, whereas the pectoral girdle is built to enable a broad range of movement.
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Submerged aquatic vegetation (SAV) plays a key role in supporting populations of fish and crabs in the shallow portions of the Chesapeake Bay and the rivers that flow into it. There are many species of underwater plants that make up SAV beds. Use what you know about photosynthesis and cellular respiration to explain why SAV beds are critical to the health of fish and crabs that live in the Chesapeake Bay. Use evidence and scientific reasoning to support your answer.
Answers
Submerged aquatic vegetation which is also called underwater aquatic plants play a key role in the survival of fish and crustaceans due to the products of photosynthesis, such as oxygen.
What is photosynthesis?Photosynthesis is the process in which green plants use a green pigment called chlorophyll to make their food by using energy from sunlight.
The result of photosynthesis is oxygen, which in turn is used by aquatic animals such as fish and crabs for cellular respiration.
Underwater plants consist of aquatic plants that grow completely underwater. Aquatic animals produce oxygen as a byproduct of photosynthesis to survive.
Underwater plants can be found in both fresh and salt water.
Therefore, aquatic plants play a key role in the survival of fish and crustaceans due to the products of photosynthesis, such as oxygen.
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That nature contributes to the supply of clean water is an
example of:
Choose one option:
Sustainability
Ecosystem services
Biomimicry
Industrial symbiosis
Answers
Ecosystem services is an example of how nature contributes to the supply of clean water. Ecosystem services are benefits that people obtain from ecosystems. They are distinguished into four categories: provisioning, regulating, cultural, and supporting services.
Ecosystem services include the provision of clean air and water, the pollination of crops, the mitigation of natural disasters, and the provision of recreational opportunities. Nature provides a variety of ecosystem services that are essential to human well-being. The supply of clean water is an example of ecosystem services. The water we drink comes from rivers, lakes, and underground aquifers that are replenished by rain and snowmelt.
These freshwater ecosystems not only provide us with water but also with food, fiber, and recreation opportunities. That nature contributes to the supply of clean water is an example of ecosystem services. Ecosystem services are benefits that people obtain from ecosystems.
The supply of clean water is one such service provided by nature, and it is essential for human well-being. The water we drink comes from rivers, lakes, and underground aquifers that are replenished by rain and snowmelt. These freshwater ecosystems not only provide us with water but also with food, fiber, and recreation opportunities.
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Summarize How cells divide
Answers
Process of mitosis: Mitosis is a process where a single cell divides into two identical daughter cells.
And meiosis: Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information.
How does capillary distention resulting from high vessel compliance affect resistance and blood flow?
Answers
The effects of capillary distention resulting from high vessel compliance on resistance and blood flow can depend on several factors such as the
Degree of distension, The location of the capillaries, The overall health of the cardiovascular system.What effect Capillary distention resulting from high vessel compliance?Capillary distention resulting from high vessel compliance can affect resistance and blood flow in several ways:
Increased Compliance: High vessel compliance leads to an increase in the total cross-sectional area of capillaries, which results in a decrease in resistance to blood flow. This decreased resistance can increase blood flow through the capillaries.
Increased Distension: High vessel compliance also leads to increased distension of the capillaries, which can increase the permeability of the capillary walls. This increased permeability can lead to an increased exchange of fluids and nutrients between the blood and surrounding tissues.
Decreased Perfusion Pressure: Capillary distension can also result in a decrease in perfusion pressure, which is the pressure gradient that drives blood flow through the capillaries. This decrease in perfusion pressure can decrease blood flow through the capillaries.
Overall, the effects of capillary distention resulting from high vessel compliance on resistance and blood flow are complex and can depend on several factors such as the degree of distension, the location of the capillaries, and the overall health of the cardiovascular system.
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In a life cycle with alternation of generations, multicellular haploid forms alternate with ________.
Answers
Answer:
multicellular diploid forms.
Explanation:
Compare and contrast changes in the Pacific Ocean caused by El Niño and La Niña.
Do you think El Niño or La Niña creates more favorable weather changes in the United States? Defend your answer.
Answers
El Niño and La Niña are opposite phases of the El Niño-Southern Oscillation (ENSO) cycle, which is a fluctuation in sea surface temperature in the Pacific Ocean.
What is El Nino and La Nina?El Niño results in warmer than normal sea surface temperatures in the central and eastern Pacific Ocean, which can lead to changes in atmospheric circulation patterns and increased rainfall in some regions, such as South America and Australia, and decreased rainfall in others, such as the western United States and southeast Asia.
La Niña, on the other hand, results in cooler than normal sea surface temperatures in the central and eastern Pacific Ocean and can result in changes in atmospheric circulation patterns leading to increased rainfall in some regions, such as the western United States and Indonesia, and decreased rainfall in others, such as Australia and southern South America.
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A plate moves south at a rate of 2 cm/year. How many meters south from its original location will the plate be in 4,000 years? 8,000 meters south 4,000 meters south 200 meters south 80 meters southWhich source of evidence did Wegener use to support his theory of continental drift? fossils magnetic fields satellite mapping warm equatorial climates
Answers
Answer:
1. 8000 meters
2. Fossils
Explanation:
1. Rate of southern movement of the plate = 2 cm/year.
In 4000 years, the plate will move a distance of 4000 years * 2 cm/year = 8000 meters
Therefore, the plate will move a distance of 8000 meters south in 4000 years.
2. Wegener in supporting his theory of continental drift used fossils, geologic and glacial evidences. He compared the fossils found in different continents and argued that the presence of fossils of certain animal fossils such as the Lystrosaurus which are found in antarctica, India and South Africa indicates that the continents drifted apart as the Lystrosaurus could not have swam across the ocean to get to these different continents. Also, using geologic evidence by comparing rock structures on opposite sides of the Atlantic ocean, he determined that there were similarities between the rock strata of the Karroo system of South africa with the Santa Carina system in Brazil.
Answer give in Nepali How carbon dioxide is necessary for photosynthesis
Answers
Answer:
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Carbon dioxide is necessary for photosynthesis in plants. It is so necessary because it combines with water to form glucose or carbohydrates which are incredibly important for plants to provide energy. If they were to not take in carbon dioxide, then they would also not give oxygen which is the most essential for humans.
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Neplai Version: बोटहरूमा प्रकाश संश्लेषणको लागि कार्बन डाइअक्साइड आवश्यक हुन्छ। यो यति आवश्यक छ किनभने यसले पानीसँग मिसाएर ग्लुकोज वा कार्बोहाइड्रेट बनाउँछ जुन बोटबिरुवाहरूको लागि शक्ति प्रदान गर्न अविश्वसनीय रूपमा महत्त्वपूर्ण हुन्छ। यदि तिनीहरूले कार्बन डाइअक्साइड लिदैनन् भने तिनीहरूले अक्सिजन पनि दिदैनन् जुन मानवहरूको लागि सबैभन्दा आवश्यक हो।
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Explanation:
Which of the following might be evidence for an extrasolar planet?
A. X-ray observations emanating from the star
B. Doppler-shifted stellar spectrum and physics calculations that indicate a low-mass object
C. Doppler-shifted stellar spectrum and physics calculations that indicate a high-mass object
D. direct visual observation of the planet transiting the star
Answers
Direct visual observation of the planet transiting the star might be evidence for an extrasolar planet as it can provide valuable clues and indirect evidence for extrasolar planets. Option D.
Direct visual observation of a planet transiting its star is strong evidence for the existence of an extrasolar planet. This occurs when a planet passes in front of its host star from our line of sight, causing a small but detectable decrease in the star's brightness.
This phenomenon can be observed using telescopes and specialized instruments, and it provides direct evidence of the presence of a planet. Hence option D is correct.
While X-ray observations, Doppler-shifted stellar spectra, and physics calculations can provide valuable clues and indirect evidence of extrasolar planets, direct visual observation of a planet transiting its star is the most compelling evidence for the existence of an extrasolar planet.
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them 261.25mg every 6 hours.
Part F: Section 1: Practice problems: Be sure
to show all your work including the units to
receive points.
1. A 25 lb. infant is prescribed medication A. The
recommended dose is 25 mg/kg every 6 hours.
What is the dose that should be given to this
infant?
Ih natient is nrescribed medication B The
Answers
Answer:
100 mg/kg/day.
Explanation:
The recommended dose of medication A is 25 mg/kg and given to the infant after every 6 hours so 100 mg/kg of medication A is given to the infant per day. The medication A is given in small doses not as a whole at one time because it cause problems in the infants instead of treatment. There is no need for medication B if the medication A works effectively on the infant so the per day dose of medication A is 100 mg/kg/
Globalization is the process of the world becoming more connected. Like any process that involves economic choices, it has positive and negative consequences.
China is one of the world's fastest-growing economies, and it has experienced many consequences as the result of globalization. One severe consequence has been a sharp increase in air pollution.
In an informative essay, describe the effects of globalization on air pollution in China's largest cities.
Use outside research to gather anecdotes and data to help you demonstrate your findings. Be sure to cite your sources on a Works Cited page.
Answers
The process of increasing world connectivity is known as globalisation. It has advantages and disadvantages, just like any process involving economic decisions. China's economy, which is among the fastest-growing in the world, has been negatively impacted by globalisation in many ways.
What is meant by Globalization? The term "globalisation" refers to how trade and technology have widened connections between people and increased interdependence throughout the world. The economic and social developments that have resulted from globalisation are also included in its scope. Globalization is the process that allows for seamless cross-border movement of people and things.It is primarily an economic notion, involving the integration of markets, trade, and investments with few obstacles. Examples of globalisation include: When making an automobile, spare parts are used from several nations and are ultimately put together in one nation. A foreign nation produces and sells computer components and accessories in another nation.To learn more about Globalization, refer to:
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Somebody help me so I can give y’all some points
Answers
Answer:
I believe this is correct already..
Explanation:
two main types of cells
Answers
Answer:
The main types of calls are the eukaryotic cells and prokaryotic cells
Answer:
Eukaryotic cells & Prokaryotic cells.
Explanation:
Eukaryotic cells contain membrane-bound organelles, like the nucleus while Prokaryotic cells do not: They have different parts present & absent & are different in sizes.
if a segment of dna has 20% adenine in its base composition, what percent thymine is there?
Answers
Answer:
20%
Explanation:
Since adenine's complementary base pair is thymine, they'll have an equal percent. 20+20=40, so if you get another question about how much guanine or cytosine, it'll be 30 because 30+30=60 and 40+60=100. Hope this helps :)
Imagine that you work at Powell & Lealand.
Write an ad that helps convince to people
that the microscopes are powerful tools. Use
details from the text in your answer.
Answers
A microscope's primary function is to magnify tiny things. The primary purpose of a microscope is to produce resolution, more than magnification.
A microscope is a device that magnifies small objects, giving the user a very close-up view of tiny structures on a slide. It is mostly employed for inspection and analysis.
To continue the experiment and analysis, it should render in-depth images of the required specimen. The oldest known microscopes were simple and compound, but electron and fluorescence microscopes have lately supplanted them.
A compound microscope is more powerful than a basic microscope and has superior resolution. In disciplines where in-depth study is not required, a simple microscope is employed.
A microscope enables one to view details of an item that are not visible to the human eye. They are essential for understanding the existence of cells, how plants breathe, and how rocks change over time.
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Which statement is part of the cell theory?
Cells can be produced from nonliving matter.
All cells are produced from other cells.
Only plants are composed of cells.
Only animals are composed of cells.
Answers
Answer:
all cells are produced from other cells
Explanation:
cell theory <3
A student read that liquid extracted from an Aloe vera plant promotes the healing of burned tissue. She decided to investigate the effect of different concentrations of Aloe vera extract on the regeneration (regrowth of lost or damaged tissue) rate in planaria. Planaria are small flatworms known for their ability to regenerate.
The student used a sterile scalpel to cut each of 30 planaria in half. This gave her 10 heads and 10 tails for each of three experimental groups. The planaria were kept in separate Petri dishes in the same amount of water and at the same temperature. Group 1 received 0% Aloe vera extract, Group 2 received a 20% concentration of the extract, and Group 3 received a 40% concentration. On days 7, 10, and 14, she recorded the amount of tissue regeneration in all three groups. She observed that the group with 20% Aloe vera added regenerated more slowly than the group with 40% added.
A reasonable inference based on these results would be that
(1) Aloe vera affected the rate of cell division, resulting in an increased rate of regeneration
(2) the control group, which received no Aloe vera, did not regenerate
(3) if she applied 30% Aloe vera to a group, it would regenerate tissue more rapidly than the 40% group (4) the application of Aloe vera to earthworms would have no effect on tissue regeneration
Answers
The experiment did not provide any evidence to support the idea that Aloe vera extract affects the rate of cell division. Additionally, since the control group was not described as having no regeneration, it is unlikely that the second inference is correct. It is also not possible to infer that a 30% concentration of Aloe vera extract would result in faster regeneration than a 40% concentration based on the results of the experiment. Finally, since the experiment was conducted on planaria, it is not appropriate to make any conclusions about the effect of Aloe vera extract on earthworms.
Give me brainliest answer, please.
WILL MARK BRAINLIEST
Answers
Answer:
the answer is 7
Explanation:
Im pretty sure it's 7
Hypothesize how photosynthesis can affect these changes, explain in 3 to 5 sentences
Answers
The process of the formation of food by trapping the sunlight with the help of chloroplast is called photosynthesis.
These are the following which are used in process photosynthesis:-
-Carbon dioxide
-Water
-Sunlight
Photosynthesis is greatly dependent on the amount of carbon dioxide concentration in the atmosphere because photosynthesis is the process where carbon dioxide gas is used in large amounts.
If the vegetation occurs higher in the season, the decrease will occur in the carbon dioxide concentration of the atmosphere while on the other hand, if less vegetation occurs then there is a higher amount of carbon dioxide concentration in the atmosphere.
Hence, the larger the amount of carbon dioxide more the yield from photosynthesis. In some cases, the high amount of carbon dioxide also acts as a poison.
1. Make a table to summarize the contributions
made to the cell theory by Robert Hooke,
Matthias Schleiden, Theodor Schwann, and
Rudolf Virchow.
Answers
Robert Hooke spotted some "pores" or "cells" when he used his microscope to examine a piece of cork. Hooke thought the cork tree's once-living "noble fluids" or "fibrous threads" had been stored inside the cells.
What is cell theory?Cell theory is defined as cells are believed to be the primary building blocks of all living tissues according to a basic biological scientific hypothesis.
According to the cell hypothesis, which was first advanced in 1839 by Matthias Jakob Schleiden and Theodor Schwann, every organism is made up of one or more cells. Cells are also the fundamental unit of structure and function in all living organisms, all cells are derived from preexisting cells, and all cells contain the hereditary.
Rudolf Virchow established the field of cellular pathology, or the study of disease at the cellular level, by proposing the hypothesis that all cells develop from pre-existing cells.
Thus, the cell theory given be the different scientist is that the cell is the fundamental unit of life.
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