1. Describe the developments that led to the cell theory.

Answers

Answer 1

Answer:

Virchow saw cells dividing and added that living cells arise only from other living cells. All organisms are made of cells, all life functions occur in cells, and all cells come from other cells

Explanation:

Hope this helped you out.


Related Questions

4. What is the name of the molecule used during photosynthesis to provide the energy to make glucose?
ATP
carbon dioxide
chloroplast
chlorophyll

Answers

Answer:

Cholorophyll

Explanation:

Answer:

d

Explanation:

just took the quiz

Carla makes a small cardboard boat and floats it in a tub of water. When she adds a drop of dish soap behind the boat, the boat moves forward.

Which statement best explains what happened?
A.) The soap increased the viscosity of the water behind the boat, allowing the water in front of the boat to flow more easily.
B.) The soap reduced the surface tension behind the boat, causing both water molecules and the boat to be pulled forward.
C.) The soap increased the kinetic energy of the water molecules behind the boat, causing both the molecules and the boat to move forward.
D.) The soap formed an immiscible layer on the water, causing the soap to spread out and push the boat forward.

Answers

Answer:

B

Explanation:

This activity is an example of which threat to biodiversity?

Answers

Answer:

hi

Explanation:

I need help with two questions!

Answers

Answer:

What are the questions?

Explanation:

Leopard seals are producers. Are you talking about more than one?

Baking soda, Black coffee, Distilled water, Lemon juice out of these 4 item, which the strongest acid? How do you know?​

Answers

Answer:

Baking soda is the strongest acid I think. I learned it in bio.

Explanation:

Hope this helps!

Why do the cardiovascular and respiratory system depend on eachother?

Answers

Answer:

to circulate blood and oxygen throughout the body

Explanation:

air moves in and out the lungs through the trachea, bronchi, and bronchioles. blood moved in and out the lungs through the pulmonary arteries and veins that connect to the heart

Are mouse cells eukaryotic or prokaryotic?

Answers

Answer:

Eukaryotic

Explanation:

The photograph shows a chemical change taking place over time. Which statement best explains the chemical change? A. A substance breaks down into one or more new substances. B. An acid dissolves in water into tiny particles that cannot be seen. C. An acid and a base combine to form salt and water. D. A substance reacts with oxygen and releases huge amounts of energy​

Answers

Answer:

Answer is A (A Substance breaks down into one or more new substances)

Explanation:

The statement which best explains chemical change is that a substance breaks down into one or more new substances. Thus, the correct option for this question is A.

What is a Chemical change?

A chemical change may be defined as a type of change that involves an alteration in materials into another, new materials with different properties, and one or more than one new substance formed. It occurs when a substance combines with another to form a new substance.

According to the context of this question, the image shown below determines a substance that is yellow in color and breaks down into one or more new substances that are white and blue in color. A chemical change takes place when one chemical substance is transformed into one or more different substances, such as when iron becomes rust.

Therefore, the correct option for this question is A.

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Which is a correct statement?

Select one:
a. As porosity increases, permeability stays the same
b. As porosity increases, so does permeability
c. As porosity increases, permeability decreases
d. Porosity and permeability are unrelated

help pls!!!

Answers

As porosity increases, permeability decreases It increases as particle length increases. via definition, permeability is a measure with which fluids will go with the flow though a porous rock, soil or sediment. a material that has high porosity does not have to have high permeability.

Smaller particles have a low permeability. this is due to the fact there's less space among debris, which reasons a lower porosity, which makes water travel slower through the ground. Smaller debris have a higher capillarity.

Porosity is the amount of pore area that is between particles in soil or rocks. Permeability takes this pore space and connects the voids collectively so that water can pass thru. Porosity is extra associated with garage of water, whilst permeability is extra related to groundwater motion and flow.

To calculate the permeability of a porous material, use Darcy's law equation: Multiply together the fluid discharge fee, dynamic viscosity, and distance traveled. Divide the end result from step one with the aid of the move-sectional place of the fabric elevated with the aid of the strain difference on either aspect of the material.

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Depending on the organism, the optimal pH for enolase to catalyze its reaction is between 6.5 and 8.0 . Describe how a pH below or above this range is likely to affect enolase and its catalytic ability.



Answers

Answer:

Enolase are enzymes, when a enzyme goes into a different ph level that is not used to, it will be denatures and will lose its catalytic ability.

Enolase are enzymes, when a enzyme goes into a different ph level that is not used to, it will be denatures and will lose its catalytic ability.

What are enzymes?

Proteins called enzymes aid in accelerating our bodies' chemical reactions, or metabolism. Some compounds are created, while others are broken down. Enzymes are a part of all living things.

Enzymes are created by our bodies spontaneously. However, food and manufactured goods both contain enzymes.

The body contains tens of thousands of different enzymes. Every type of enzyme has a single function. For instance, the enzyme sucrase degrades the sugar sucrose. Lactose, a type of sugar included in milk products, is broken down by lactase.

Therefore, Enolase are enzymes, when a enzyme goes into a different ph level that is not used to, it will be denatures and will lose its catalytic ability.

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How long did the initial contamination of the Hudson River last?

Answers

Answer:

30 years

Explanation:

Answer:

30 Years

Explanation:

The Hudson river was contaminated in 1947-1977. Which is about 30 years

Where is carbon located on our planet, and how are these carbon reservoirs different from each other?

Answers

Answer: Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms. These are the reservoirs, or sinks, through which carbon cycles. The ocean is a giant carbon sink that absorbs carbon.

Please. My teacher never explained this

Answers

Answer:

The answer is C) Commensalism

Explanation:

The reason is due to the fact that there is evidence in the paragraph describing the relation of two species. If you look in the last sentence of the paragraph, it says, "The relationship between 2 species that can be represented as +/0"

The symbol +/0 is actually saying/meaning one side is benefited while the other side is neutral or not benefited!

The picture shown bellow will help!

Commensalism = +/0 (One side is benefited while other isn't benefited or hurt)

Mutulaism = +/+ (Both sides benefit each other)

Parasitism = +/-  (One side benefits while other is harmed)

describe the six functions of membrane proteins

Answers

Answer:

All enzymes are a type of protein. As a result, a membrane protein that is embedded into the membrane can sometimes be an enzyme, which may have its active site facing substances outside of the lipid bilayer.

These types of enzymatic membrane proteins can work in teams to carry out the steps in a particular metabolic pathway, for instance breaking down lactose into carbohydrate and then monosaccharides.

Membrane proteins can allow hydrophilic molecules to pass through the cell membrane. Transport membrane proteins come in many forms, and some require energy to change shape and actively move molecules and other substances across the cell membrane. They do this by releasing ATP to use as an energy source.

Anchorage: become points of attachment for the cytoskeleton and the extracellular matrix

Some membrane proteins can feature a binding site. These binding sites are characterized by specific shapes that match the shape of a chemical messenger. For example, these chemical messengers can be hormones.

When a hormone meets with the cell wall, it will connect with a receptor membrane protein that is embedded inside the cell wall. The hormone can change the receptor protein and cause a specific reaction, depending on the type of hormone or other substance, will take place within the cell.

Another important function of membrane proteins is in identification and recognition between cells. This particular function is useful in the immune system, as it helps the body to recognize foreign cells that may be causing infection, for instance. Glycoproteins are one type of membrane protein that can carry out cell recognition.

Adjacent cells may have membrane proteins that connect in a range of different junctions. Gap junctions and tight junctions.

This function helps cells to communicate with one another, and to transfer materials between one another.

Membrane proteins are important in the cytoskeleton, the system of filaments and fibers in the cytoplasm of a cell, and the extracellular matrix (ECM), which is the network of macromolecules found outside of cells, such as collagen, enzymes, and glycoproteins, to membrane proteins.

Attaching filaments or fibers in the cytoplasm found throughout the cell can help the cell to maintain its particular shape. It also keeps the location of membrane proteins stable.

Attaching membrane proteins to the extracellular matrix can help the ECM to mediate changes that occur in extracellular and intracellular environments.

Several diseases are linked to mutations within membrane proteins. One example is a mutation called V509A, found in the thyrotropin receptor, thyrotropin being a hormone secreted by the pituitary gland that regulates the production of thyroid hormones.

This mutation increases the activity of the thyrotropin receptor and leads to congenital hyperthyroidism, a condition that can cause changes in mood, sleep problems, and stomach problems.

Other diseases that are linked to mutations in membrane proteins include hereditary deafness, Charcot-Marie-Tooth disease, which damages the peripheral nerves outside the central nervous system, and Dejerine-Sottas syndrome, that affects a person’s ability to move.

Explanation:

Which organisms synthesize carbohydrates, and in which cell organelle(s) does this synthesis occur?
a. animals in mitochondria
b. plants in mitochondria
c. plants in chloroplasts
d. animals and plants in mitochondria
e. animals and plants at ribosomes

Answers

Answer:

C

Explanation:

Green Plants are the main producers of starch as carbohydrate.In order to carry out this  special organelle Chloroplast are specially adapted  for this purpose,

Green plant are made up of Chlorophyll which are the green pigments that for trapping sunlight for the synthesis of starch to occur.

Photosynthesis is the process of synthesis of the starch.It involves the reaction of C02 with water  in the presence of sunlight  and enzymes to give oxygen as the byproduct, and Starch( carbohydrate) as the main product.

This process occur in two pathways the light dependent pathways and the light independent pathways,

Green plant and some organisms phytoplankons,algea are capable of producing starch  through photosynthesis because of the green pigment they possess.Therefore they are said to be Autothrophic.

Explain the law's of segregation and independent assortment.

Answers

I hope this helps.

Explanation: The law of segregation states that the two alleles of a single trait will separate randomly, meaning that there is a 50% either allele will end up in either gamete. This has to do with 1 gene. The law of independent assortment states that the allele of one gene separates independently of an allele of another gene.

Answer:

The law of segregation states that the two alleles of a single trait will separate randomly, meaning that there is a 50% either allele will end up in either gamete. ... The law of independent assortment states that the allele of one gene separates independently of an allele of another gene. This has has to do with 2 genes.

Explanation:

Choose one human body system and describe the major organs that make up the system. ​

Answers

Answer:

respiratory system

-heart

-Lungs

-trachea

-pulmonary blood vessels

-pharynx

-oral cavity

-nasal cavity

according to Google ofcourse.....

Two things required for respiration to occur

Answers

Answer:

Inhaling and exhaling

Suggest why a cell within the trunk of a tree cannot carry out photosynthesis.​

Answers

Answer:

The water needed for photosynthesis is absorbed through the roots and transported through tubes to the leaf. Note that root cells do not contain chloroplasts, as they are normally in the dark and cannot carry out photosynthesis.

Explanation:

The trunk of a tree consists of dead tissues and serves only to support the weight of the tree crown. This portion of the tree does not contain chloroplast, hence photosynthesis is not carried.

What is Photosynthesis?

Photosynthesis may be defined as a process through which green plants and some photosynthetic algae synthesize their food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.

The part of the trunk region of the tree does not have chloroplast, chlorophyll pigments, and other required machinery which is significantly utilized by the leaves of the tree in order to perform photosynthesis. Due to this, the trunk part of the trees is not capable to carry out the same process.

Therefore, the most prominent reason why a cell within the trunk of a tree cannot carry out photosynthesis is well described above.

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How is homeostasis achieved?

Answers

A: Cells maintain internal stability

Homeostasis is achieved once a continuous state of steady internal, physical, and chemical conditions are maintained.

Answer:

A. Cells maintain internal stability

Explanation:

Biofuels are fuels derived directly from living matter. Read this article about a scientist who discovered how one bacterium can transform plants into usable energy. Then answer the following questions. Today, many people read only the headlines of news stories instead of taking time to read the entire article. This habit can lead to misconceptions about the actual story. What misconceptions could someone have by reading just the headline of this article? How are these misconceptions clarified if the entire article is read?

Answers

Answer:

The headline suggests that using bacteria to turn plants into biofuel is a simple process. But reading the article reveals that there were many different types of scientists involved in the process. Also, the headline gives the misconception that this process is so simple that it’s ready to be used. But the last paragraph of the article states that this process has only been done on a small scale, and transforming the process for the entire industry would likely be quite difficult.

Explanation:

Answer:The headline suggests that using bacteria to turn plants into biofuel is a simple process. But reading the article reveals that there were many different types of scientists involved in the process. Also, the headline gives the misconception that this process is so simple that it’s ready to be used. But the last paragraph of the article states that this process has only been done on a small scale, and transforming the process for the entire industry would likely be quite difficult.

Explanation: PLATO ANSWER!!!! paraphrase as u will!

Do y'all teacher make y'all use that Rocketbook app? How do I use it?

Answers

Answer:

use you tube to help you use the app the teacher is telling you to use

Explanation:

Because people that have used the app, could have shown information on how to use it on you tube

Answer:

Yeah i dont know how to use it either

Explanation:

HELPPPP MAN IDKK- IM DOINGTHISLASTMINUTE

Answers

Answer:

gravity

Explanation:

the sun has a gravitational pull that keeps all the planets in orbit and prevents them from just floating away.

Answer:

The reason the planets orbit the Sun is related to why objects fall to Earth when we drop them. The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.

Will award 60 points!
Select each of the following that are recessive alleles represented in the genotype AaBb.
A
B
a
b

Answers

Answer:

small a and small b because the big ones are dominant the others recessive

The recessive alleles represented in the genotype AaBb is a and b.

What is recessive and dominant allele?

Alleles can be dominant or recessive. We call someone dominant who has achieved a certain characteristic. The recessive can only express itself in pairs.

Thus, as it is a pair and knowing that the recessive alleles are shown with lowercase letters we have to be ab.

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30 POINTS
The chart below shows the atomic numbers and mass numbers for two elements. Element 2 has a greater atomic number and mass number that element 1.

Element 1

Atomic number 26
Mass number 56

Element 2

Atomic number 31
Mass number 70

How many more neutrons does element 2 have than element 1?

5
14
9
39

Answers

the answer is 9 because to find the amount of neutrons you have to take away the atomic number from the mass

Answer:

9

Explanation:

i took the hmh test

What impact does deforestation have on the carbon cycle?

Answers

Answer:

Deforestation can affect the water cycle and the carbon cycle. It will decrease the amount of transpiration. It will also increase the amount of carbon dioxide in the atmosphere by releasing the carbon dioxide as trees are burned and by decreasing photosynthesis.

what process is responsible for removing waste from the cell?​

Answers

Answer:

Cellular Stomach

Explanation:

Containing acid and several types of digestive enzymes, lysosomes digest unwanted organelles in a process termed autophagy, from the Greek words for “self” and “eat.” The multipurpose lysosome also processes proteins, bacteria and other “food” the cell has engulfed.

How do icebergs form?
O They form when seawater freezes.
O They form when groundwater freezes.
They break off from the coast of Iceland.
O They break off large ice sheets found at the poles.

Answers

Answer:

Im 100% sure its D

Explanation:

When Icebergs form they break off of large ice sheets know as glaciers and are found in both the North and South poles.

Generator produces the electricity required to run the factory 

Answers

True because they don't actually create electricity. Instead, they convert mechanical or chemical energy into electrical energy. They do this by capturing the power of motion and turning it into electrical energy by forcing electrons from the external source through an electrical circuit.

Explanation:

Peptide bonds in proteins can be broken down by the enzyme peptidase. Adrian orders a hamburger and French fries for lunch. He adds cheese and mayonnaise to his hamburger, and then sits down to eat lunch with his friends. Which structure would MOST likely result from the action of peptidase in Adrian’s small intestine?

Answers

Answer:

Hello. I think the answer is small peptides and amino acids.

Explanation:

Proteins are polymers that their monomer is amino acid.

First digestion of proteins accurs in stomach.

Stomach enzymes digest proteins but not to amio acid. They digest it to small peptides.

Then the other proteins and small peptides enter the small intestine.

In small intestine peptidaze digests proteins and transform them to small peptide.

The small peptides that came from stomach are digested to amino acids and most of them is absorbed by the epithelial cells of intestine wall.

I hope you understand.

Amino acid is the structure would MOST likely result from the action of peptidase in Adrian’s small intestine.

Proteins are made up of monomers of amino acids. Adrian diet is rich in proteins that is present in hamburger and French fries along with the cheese and mayonnaise.The food passes through various organs in the body of the digestive system where digestion of food occurs.The proteins are first digested in stomach then in the intestine. In the intestine the proteins are broken down into peptides and further into amino acids by the enzyme peptidase.

Hence, amino acid is the correct answer.

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Other Questions
All of the following were challenges faced by the settlers of the La Salle Expedition when they established their colony EXCEPT___________.a.attacks and raids by the Karankkawasb.suffered from starvationc.forced out by the Spanishd.stranded by other members of the expeditionPlease select the best answer from the choices providedABCD 45.761 g - 42.98 = ___________ PLEASE HELP Identify a passage in Chapter 8 that relies on figurative language for part of its meaning or effect. First summarize the passage. Then analyze its style, using what you learned in this lesson, and describe the effect the passage might have on readers. How did the passage make you feel? What information were you able to gather about the characters featured in the passage?If you get this right I will give u the crown If the sour patch kids cost 3.99$ and Nichole decided to buy 1.5 pounds of sour patch kids how much will it cost? Find the product of D = BA.d11 = 0d12 = 6d21 = 1d22 = -4 2. It is a sex characteristic that has direct relation to sexual reproduction How many ounces of a 15% alcohol solution must mixed with 2 ounces a 20% alcohol solution to make a 17% alcohol solution Solving the Sequence of an Oligopeptide From Sequence Analysis Data Analysis of the blood of a catatonic football fan revealed large concentrations of a psychotoxic octapeptide. Amino acid analysis of this octapeptide gave the following results: 2 Ala 1 Arg 1 Asp 1 Met 2 Tyr 1 Val 1 NH4 1 The following facts were observed: a. Partial acid hydrolysis of the octapeptide yielded a dipeptide of the structure C O C N H H COOH H3C CH3 CH3 C CH H3 N b. Chymotrypsin treatment of the octapeptide yielded two tetrapeptides, each containing an alanine residue. c. Trypsin treatment of one of the tetrapeptides yielded two dipeptides. d. Cyanogen bromide treatment of another sample of the same tetrapeptide yielded a tripeptide and free Tyr. e. N-terminal analysis of the other tetrapeptide gave Asn. What is the amino acid sequence of this octapeptide Ryan rapidly rushed round the corner as he ran the race. What rhetorical device is being used in this sentence?A. OnomatopoeiaB. ConsonanceC. AlliterationD. Assonance Honest question... if Im 16 or 17 and want to live with my older sister who is 23, can I? My parents gave me permission, I have a job and Im gonna help with rent for our apartment. So how would the landlords know my parents gave permission without court involved? My sister has 2 jobs and Im online schooling and I have a job as well we both will help with rents and other necessities. But how will the landlords know we are not lying? How do they know without court involved? is 3.66227766017 rational or irrational? simplify -3/4 divided by 2/-8 The future of work is characterized by (choose all that apply): a. Staying at the same job for your entire career. b. Working with international colleagues. c. Repetitive jobs. d. Multiple career changes. can someone help me with the picture above please. if your right ill give you the extra points Write 3 2/3 as an improper fraction PLEASE HELP What is an archimedean screw used for? dont just guess or i wil banned you and reprt you actually try Simplify the expression.(x4y2)1/2 A) 2(x4y2) B) x1/8y1/4 C) x2y D) x8y4 A study is performed in a large southern town to determine whether the average amount spent on food per four-person family in the town is significantly different from the national average. A random sample of the weekly grocery bills of two-person families in this town is given in the file. Assume the national average amount spent on food for a four-person family is $150. a. Identify the null and alternative hypotheses for this situation. b. Is the sample evidence statistically significant? If so, at what significance levels can you reject the null hypothesis? c. For which values of the sample mean (e.g., average weekly grocery bill) would you reject the null hypothesis at the 1% significance level? For which values of the sample mean would you reject the null hypothesis at the 10% level?FamilyWeekly food expense1 $198.232 $143.533 $207.484 $134.555 $182.016 $189.84 7 $170.368 $163.729 $155.7310 $203.7311 $191.1912 $172.6613 $154.2514 $179.0315 $130.2916 $170.7317 $194.5018 $171.1419 $175.1920 $177.2521 $166.6222 $135.5423 $141.1824 $158.4825 $159.7826 $157.4227 $98.4028 $181.6329 $128.4530 $190.8431 $154.0432 $190.2233 $161.4834 $113.4235 $148.8336 $197.6837 $135.4938 $146.7239 $176.6240 $154.6041 $178.3942 $186.3243 $157.9444 $116.3545 $136.8146 $195.5847 $129.4448 $146.8449 $165.6350 $158.9751 $210.0052 $175.4653 $159.6954 $154.5655 $152.9556 $177.3057 $129.2358 $127.4059 $167.4860 $183.8361 $157.3962 $163.2463 $165.0164 $137.4365 $177.3766 $142.6867 $150.0468 $161.4469 $166.1370 $190.9671 $187.1972 $116.6373 $159.7374 $159.6475 $142.4476 $153.0377 $143.1278 $156.3579 $182.7080 $129.0381 $119.0682 $137.9983 $144.2084 $183.5185 $169.6786 $134.6687 $202.9488 $143.4389 $170.5290 $139.5391 $159.3192 $134.7793 $165.4894 $127.2095 $168.1696 $125.3997 $167.9698 $178.6499 $134.38100 $111.87 If a crime is committed in Alpha Township within the county of Beta, which agency has primary investigative responsibility? A. the county sheriffs office B. the state patrol C. the local police department D. the Federal Bureau of Investigation Several factors affect a firms need for external funds. Evaluate the effect of each following factor and place a check next to each factor that is likely to increase a firms need for external capitalthat is, its AFN (additional funds needed). Check all that apply. The firm increases its dividend payout ratio. The firms inventory turnover decreases, with no effect on the sales forecast. The firm previously thought its fixed assets were being operated at full capacity, but now it learns that it actually has excess capacity. Dividends to common shareholders are paid out of after-tax earnings. Do these payouts affect a firms AFN? No, dividends do not affect a firms AFN, because they are paid out of after-tax earnings. Yes, dividends still affect a firms AFN even though they are paid out of after-tax earnings.