what was rudolf virchows involvement in the cell theory

Answers

Answer 1

He was responsible for the formation of the last part of the cell theory which stated that "cells arise from pre-existing cells ". Rudolf Virchows laid the foundation of cellular pathology which explained more clearer how diseases occurred at cellular level.Through his work, scientists are now able to diagonose diseases more accurate.


Related Questions

Select all that apply. Many insects go through different physical changes during growth. These insects include the _____.

Answers

butterflies and house flies.

Hope this helps!

Answer:

butterflies and house flies.

The diagram shows a type of lipid
Which lipid is shown?
A) a saturated phospholipid
B) a saturated triglyceride
C) an unsaturated phospholipid
D) an unsaturated triglyceride

Answers

It is B the saturated triglyceride

Answer:

The correct answer would be B) a saturated triglyceride  

Triglycerides refer to the ester formed by three fatty acid chains and glycerol.

They are the main contributors for the body fats in animals, humans, and vegetable fat.

They can be of two types; saturated and unsaturated.

Saturated triglycerides are those in which there is no double or triple bonds are present in the fatty acid chains that are, they are saturated with hydrogen.

Unsaturated triglycerides are those in which double or triple bond is present in fatty acid chains.

What is the difference between the axial and appendicular skeleton?

Answers

Final answer:

The axial skeleton forms the central axis of the body, consisting of 80 bones that include the skull, spine, and thoracic cage, and is crucial for protection and supporting the head, neck, and back. The appendicular skeleton consists of 126 bones in the limbs and girdles, providing the necessary structure for movement and attaching limbs to the axial skeleton.

Explanation:

Difference Between Axial and Appendicular Skeleton

The human skeleton is primarily divided into two key parts: the axial skeleton and the appendicular skeleton. The axial skeleton is the central core of the human body and is comprised of 80 bones. It includes the skull, vertebral column (spine), and the thoracic cage (ribs and sternum).

The axial skeleton serves to protect the brain, spinal cord, and the organs in the chest. It also provides attachment points for muscles that move the head, neck, and back, and those involved in respiration.

The appendicular skeleton, on the other hand, consists of 126 bones and includes all bones of the upper and lower limbs, as well as the pectoral (shoulder) and pelvic girdles. This division of the skeleton is essential for movement, as it encompasses the bones that are responsible for locomotion and manipulation of the environment. The appendicular skeleton connects to the axial skeleton through the girdles.

The pectoral girdle anchors the upper limbs to the thoracic cage, while the pelvic girdle secures the lower limbs to the vertebral column. These girdles function as attachment points for the limbs and facilitate a wide range of motion.

Final answer:

The axial skeleton forms the central axis of the body, including the skull, vertebral column, and thoracic cage, and the appendicular skeleton includes the limbs and girdles that attach limbs to the axial skeleton.

Explanation:Difference Between Axial and Appendicular Skeletons

The axial skeleton and the appendicular skeleton are two major divisions of the human skeletal system with distinctive functions and structures.

The axial skeleton forms the central axis of the body and primarily includes the skull, vertebral column, and thoracic cage. It supports the head, neck, back, and chest, thus forming the vertical axis of the body. The adult axial skeleton comprises 80 bones that are crucial for protecting the central nervous system and the organs in the chest.

The appendicular skeleton, on the other hand, consists of 126 bones. These include all the bones of the upper and lower limbs, in addition to the pectoral and pelvic girdles which attach the limbs to the axial skeleton. The bones in the pectoral girdle anchor the upper limbs to the thoracic cage, while the pelvic girdle attaches the lower limbs to the vertebral column.

Overall, these divisions allow the body to perform a wide range of movements and provide the necessary support and protection for various bodily functions.

If there was a mutation changing the A to a G at position 11 in the DNA strand used for making the protein, what type of mutation would that be?

Answers

mutation-nomenclature

probably for sure

Why properties of a substance determine how that substance is will react when combined with other substance

Answers

It is the chemical properties of a substance, which determines that how the substance will react when combined with other substance.  

The usual properties of a substance like density, color, and hardness are some of the illustrations of physical properties. The properties, which illustrates that how a substance modifies into a completely distinct substance are known as chemical properties.  

Some of the examples of chemical properties are oxidation, toxicity, the heat of combustion, and flammability, enthalpy of formation, radioactivity, and chemical stability under particular conditions.  


Answer:

It is the synthetic properties of a substance, which verifies that how the substance will respond when joined with other substance.  

Explanation:

The standard properties of a substance like thickness, shading, and hardness are a portion of the delineations of physical properties. The properties, which outlines that how a substance changes into a totally particular substance are known as compound properties.  A portion of the models of substance properties are oxidation, poisonous quality, the warmth of burning, and combustibility, enthrall of development, radioactivity, and compound strength under specific conditions.

Glycolysis provides the pyruvic acid molecules used in fermentation

Answers

Glycolysis provides the pyruvic acid molecules used in fermentation. Fermentation allows glycolysis to continue byproviding the NADPH needed to accept high energy-electrons.

Glycolysis converts glucose into pyruvate, fueling cellular energy production through fermentation pathways.

Glycolysis is a metabolic pathway that breaks down glucose into pyruvate molecules, providing energy for the cell. In fermentation, pyruvate is converted into other molecules to regenerate NAD+ so glycolysis can continue without oxygen. Fermentation pathways use organic molecules as final electron acceptors derived from pyruvate.

Can someone help me with this? My teacher just gives us papers to full out and doesn't teach at all.

Answers

Ribosomes - Make protein

Golgi Apparatus - Make, process, and package proteins

Nucleus - Stores the DNA and coordinates the cell's activities

Mitochondria - Make energy out of food

Vacuole - Storage for food and water

Lysosome - Contains digestive enzymes that help break down food


Plant cells (only) -

Cell wall - Protection and support

Chloroplast - Uses sunlight to create food using photosynthesis


I hope this helps :)

why are the intestines the largest parts of the alimentary canal?

Answers

The parts of the alimentary canal listed in order are the mouth, pharynx or throat, esophagus, stomach, small intestine and large intestine. The alimentary canal is the digestive system and includes the parts of the body with which food comes in contact from eating to waste elimination.

The alimentary canal is the whole passage along which food passes through the body from mouth to anus. It includes the esophagus, stomach, and intestines. The intestines carry the food most of the way down, breaking down the food along they way. The intestines carry food from the esophagus to the stomach.


A _______ change occurred when a metal changed colonial because it reacted with another substance

Answers

A physical change occurred when a metal changed colonial because it reacted with another substance.  There are two types of change, out of which one is physical change. This change can be defined as a change in the form of any chemical substance and chemical composition is not affecting in this change.

Should women who are not pregnant and men be concerned about Zika infection?

Answers

Yes. It is known that Zika can be spread sexually. So, even infected people who do not have symptoms can pass it on to others.

Answer:

Yes, they should be very concern about Zika infection

Explanation: Because, It is known that Zika can be spread sexually. So, even infected people who do not have symptoms can pass it on to others.

QUICK HELP! WILL AWARD BRAINLIEST
1. What are things to look for to know if an example or idea is science or nonscience? 2. If the force of gravity on an object increases, what happens to its weight? 3. What would happen to the density of an object if the volume decreased while the mass stayed the same? 4. Explain: What are physical properties? Describe the two types with examples. 5. Why should procedures in an experiment be detailed for each step?

Answers

For Question 1, Ideas that are Science based, are often testable, verifiable, can be falsified, and based on evidence.

Ideas that are non-science based are not testable, not verifiable, said to be infallible and are based on belief.

For Question 2,  The gravitational force increases as the size of an object increases. On the other hand, the strength of gravity is inversely related to the square of the distance between two objects.

For Question 3, The equation from density is mass over volume.

Changes volume it will change by a inverted proportion. Increases it will decrease the density, decreasing it wil increase the density.

Changes mass it will change directly. Increasing mass it will increase density and vice versa.

For Question 4, Examples of physical properties are: color, smell, freezing point, boiling point, melting point, infra-red spectrum, attraction (paramagnetic) or repulsion (diamagnetic) to magnets, opacity, viscosity and density.

For Question 5, I'd say it's for proof of their theory.



Hope this helped.

(Select all that apply.) The four classes of organic molecules are _____. carbon carbohydrates polymers lipids nucleic acids amino acids proteins fatty acids

Answers

Carbohydrates

Lipids

Nucleic Acids

Proteins

Carbohydrates, lipids, proteins and nucleic acids are the four classes of the organic molecules. The correct options are B, D, E, and G.

What are organic molecules?

The organic molecules are the one having a carbon atom bonded with other molecules.

The four classes of the organic molecules include carbohydrates, lipids, proteins and nucleic acids.

Thus, the correct options are B, D, E, and G.

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The fluid mosaic model describes the structure of the cell membrane.To what does fluid portion of the model refer? To what does the mosaic portion refer ?

Answers

fluid part refers to the phospholipids of a cell membrane

mosaic part refers to proteins embedded in the phospholipid bilayer

In some instances, humans breed animals that are close relatives to produce desired traits. This is called

Answers

Artificial selection refers to the process by which humans selectively breed animals with close relatives to enhance certain traits, a common practice in domestication. This selection can affect genetic diversity and requires careful management to avoid health problems due to increased homozygosity.

When humans breed animals that are close relatives to enhance certain traits, this process is called artificial selection. This selective breeding is a common practice in domestication, where species are bred to accentuate traits that are beneficial to humans. For example, a farmer might only breed sheep with the softest wool or dogs with specific temperaments to create or maintain specific breeds. This is different from assortative mating, which is a natural tendency among species to mate with individuals that resemble themselves in some way.

Artificial selection can lead to a change in genetic diversity within a population, often increasing the prevalence of advantageous traits. However, it can also lead to increased homozygosity and the potential for harmful recessive alleles to surface, which is something that needs to be managed carefully to avoid detrimental health effects in the animals.

How does solid rock become soil

Answers

The moment it is exposed into the environment

rocks can become soil in multiple different ways one could be primary succession which means some algae or moss grows onto rocks with out soil then they slowly gain moisture which attracts some other plants like flowers which then breaks down the rock into smaller things then grasses come in and turns it into soil.

what can cause a gap in the rock record a) Lack of rock deposition. b) erosion. c) neither erosion nor lack of deposition. d) Both erosion and lack of rock deposition

Answers

both erosion and lack of rock deposition

Answer:

The answer is

D)Both erosion and lack of rock deposition

Explanation:

A tropical rainforest may be unable to return to its original climax community after which of the following disturbances?

A. burning of a forest fire
B. clearing and farming
C. volcanic eruption
D. flooding after a hurricane

Answers

The right option is; B. clearing and farming  

Tropical rainforests are forests located in tropical regions of heavy rainfall and are found in places such as Hawaii, Brazil, Africa and Indonesia. The heavy rainfall and the yearly high temperatures of tropical rainforests are good conditions for vegetation growth and it contains several species of wildlife and vegetation such as kapok tree, lianas, shrubs and ferns. Clearing and farming is a major problem caused by humans on the tropical rainforest that may make the forest not to return to its original climax community.  


In an experiment, all groups have the independent variable applied except for one. Then, experimental results are compared to that one group. What is the name of this group? a control group a multifactor group a variable group a hypothetical group

Answers

a multifactor group i think

which kind of volcano is most likely to form from this plate movement ?
A. Shield Volcano
B. Cinder cone volcano
C. Composite volcano
D. Trench volcano

Answers

Answer:

C. Composite volcano

Explanation:

I pass the test :)

The kind of volcano which is most likely to form from this plate movement is a composite volcano. Thus, the correct option is C.

What is Volcano?

A Volcano may be defined as an opening of the earth's crust through which molten rock, hot gases, and other materials erupt drastically.

Convergent plate boundaries lead to the occurrence of a composite volcano. The movement of such plate boundaries creates the thick magma required for molten rock or magma for these eruptions.

Therefore, the correct option is C.

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A substance has a mass of 360g and a volumen of 7.5 cm what is its density

Answers

Density equals mass divided by volume. so 360/7.5= 4.8

Only the water of marine ecosystems contains dissolved salt.

Answers

It is indeed true that only the water of marine ecosystems contains dissolved salt. Marine ecosystems, also known as salt water ecosystems, are aquatic ecosystems that waters harbor a substantial volume of dissolved salts. Definite features of individual salt water ecosystems differ significantly, however knowing their total basic surfaces gives an extensive image of their role, value and function. Furthermore, there are so many types of salt water ecosystem, the open ocean is not the only one. Other types include tidal zones, shorelines, estuaries, mangroves, coral reefs, salt marshes and swamps, hydrothermal vents and the ocean floor, just to name a few of the more main groups.

Answer:

true

Explanation:

Calcium (Ca) has an atomic number of 20. What is calcium's ground-state electron configuration?

1s21p61d101f2
1s21p62s22p63s23p2
1s22s22p63s23p64s2
1s22s22p63s23p63d2

Answers

I belive the answer is C. 1s2 2s2 2p6 3s2 3p6 4s2

Electron configuration are used to tell the distribution of electrons of an atom or molecule. The electron configuration order should follow a specific path. You will found some similarity of the rule with the number of row in the periodic table. After the electrons fill 3P, the electron should fill 4S before it go to 3D.

Answer: Option (c) is the correct answer.

Explanation:

Calcium is a group 2 element and it lies in period 4 and group 2.

Atomic number of calcium is 20 and its electronic distribution is 2, 8, 8, 2. That is, in ground state there are 20 electrons present in a calcium atom.

It's electronic configuration is as follows.

                [tex]1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}[/tex]

Thus, we can conclude that calcium's ground-state electron configuration is [tex]1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}[/tex].

Table salt, glass, fertilizers, and gemstones are all made from ____

Answers

They are made from igneous, metamorphic and sedimentary rock.

Answer: nonmetallic mineral resources

Explanation:

There are several mechanisms through which reproductive isolation occurs. Which situation is an example of behavioral isolation? A. Red and purple sea urchins cannot reproduce with one another because the sperm and egg cannot fuse. B. Males of different, closely related species of fireflies signal for mates by flashing different light sequences. C. The reproductive organs of snails only properly align when the male and female belong to the same species. D. Mules, the offspring of a male donkey and a female horse, are unable to reproduce because they are sterile.

Answers

Answer: B. Males of different, closely related species of fireflies signal for mates by flashing different light sequences.

Reproductive isolation refers to the inability of the members of a species to breed with members of other species. Behavioral isolation is a type of reproductive isolation, in which mating between the members of the species is facilitated by their behavior. It helps members of the same species to identity their mates. It prevents mating between population of distinct species.

Males of different, closely related species of fireflies signal for mates by flashing different light sequences is an example of behavioral isolation because flashing of light by fireflies is the behavioral characteristic which shows their desire for mating. The mates identify the light signals flashed by their partner belonging to the same species.


Answer:

b for test

Explanation:

i got it right

John loves trout fishing so much that he goes trout fishing several times throughout the year. He began to notice that during the dry season the trout had significantly more lice on them than during the rainy season. John, a curious science student, wanted to find out what was causing the increase of lice on the trout. write a testable hypothesis to help John focus his research

Answers

A hypothesis could be "the amount of water affect the number of lice found on the trout".

Experiment could be designed with pools with different amounts of water in it. Pools with less water represent the water during the dry season, while those with more water represent the rainy season.


According to evolutionary scientists, animals that arose later in evolutionary history share which characteristic?

Flagellated cells

Cells organized into tissues

Radially symmetrical bodies

Protostome development

Answers

Hi Oppisite

Question:According to evolutionary scientists, animals that arose later in evolutionary history share which characteristic?


Answer:B.Cells organized into tissues

Please mark as brainliest


Hello...

According to evolutionary scientists, animals that arose later in evolutionary history share which characteristic?

Answer - B. Cells organized into tissues

If vegetable oil is made of lipids, then the oil would turn ____________ in the presence of Sudan III because it is an indicator of lipids.

orange/pink


black


red


blue

Answers

The Susan 3 indicator of lipids react with the lipids or triglycerides to form stain red colour. The Sudan 3 contains alcohol and the lipids or triglycerides are soluble in alcohol. Hence it reacts to form a stain red solution in ethanol which is stain red in colour. Hence the correct answer is red colour.





The nose has mucus, a sticky substance. When outside air passes through the nose, the mucus . Bronchitis, an inflammation of the bronchioles, is a condition in which the bronchioles are filled with mucus. When mucus accumulates, .

i need to fill in the blanks

Answers

1. The right answer is the mucus filters the air.

Mucus are different viscous and translucent secretions, little or not very soluble in water, produced by specific glands of various organisms, and in these by various internal organs (eg by the goblet cells of the stomach) or internal mucosa or skin (eg fish, some amphibians, slugs, snails ...).


In humans, mucus produced in the lungs helps to protect the respiratory system by capturing and exporting many of the foreign particles that enter the nose or mouth with each inhalation. In response to inhalation of particles or allergens, mucus secretion increases (reflex and neurohumoral control process), excessively sometimes (in allergic or asthmatic patients).


2. The right answer is less air reaches the lungs (or it blocks the passage of air to the lungs).

Bronchiolitis is an acute infection of the lower airways of viral origin, affecting the small bronchi of infants and young children and spreading in a seasonal epidemic mode.


The clinical picture is due to an obstruction of the airways, on the one hand caused by a mucous plug obstructing the light, on the other hand due to inflammation of the wall. The mucous plug is created by the accumulation of dead cells and mucous secretions. The obstruction is only slightly related to the bronchial spasm, the smooth muscles being little developed at this age.

Answer:

filters the air and less air reaches the lungs

Explanation:

The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the functions of the embedded proteins?

Answers

Diffusion/passive transport. Requires protein channels to allow passage through the membrane

Answer:

Embedded proteins act as signalling molecules and as transport proteins.

Explanation:

Integral and transmembrane proteins are embedded proteins acting to transmit signals from outside the cell to the inside.

Others act as transport proteins that form channels that allow movement of molecules between the inside and outside the cell.  

What is the Jet Stream

Answers

a flow of exhaust gasses from a jet engine

a narrow variable band of very strong predominantly westerly air currents encircling the globe several miles above the earth. There are typically two or three jet streams in each of the northern and southern hemispheres.

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