Explain how cells theory development

Answers

Answer 1

Answer:

The invention of the microscope led to the discovery of the cell by Hooke. While looking at cork, Hooke observed box-shaped structures, which he called “cells” as they reminded him of the cells, or rooms, in monasteries. This discovery led to the development of the classical cell theory.20-Aug-2020

Explanation:

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Related Questions

Why is the metric system more scientific than the English system?


A. The English system is older than the metric system, and so it is less relevant.


B. The English system is only used in English-speaking countries.

C. The English system was based on human traits, while the metric system was founded on physical constants.


D. The English system must be converted to the metric system using conversion factors.

Answers

Answer:

Unlike the British Imperial System, the metric system, or SI (from the French Système International), is based on a natural constant.

Explanation:

The metric system is more scientific than the English system because the English system was based on human traits, while the metric system was founded on physical constants.

What do you mean by the Metric system?

The metric system may be defined as the scientific way of measuring weights, and distance in kilograms and meters respectively with the help of a decimal system.

The metric system may also be known as the SI system. SI system is not based on the human traits rather then it depends on the natural constant. It is more precise, standard, and easy to understand.

Therefore, the correct option for this question is C.

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Consider the fact that cancer is most easily defeated when it is found early, and then consider the time and expense involved in diagnosing a potential case of cancer.

Answers

Answer:

Early diagnosis of cancer focuses on detecting symptomatic patients as early as possible so they have the best chance for successful treatment. When cancer care is delayed or inaccessible there is a lower chance of survival, greater problems associated with treatment and higher costs of care.

Explanation:

what is science explain​

Answers

Science refers to the construction of knowledge by using the scientific method. This method is based on empirical evidence.

Science can be defined as the construction of knowledge (scientific knowledge) by using the scientific method.

The scientific method includes several sequential steps:

ObservationAsk questionsForm a testable explanation (hypothesis)Test the hypothesisCollect results (empirical evidence)Draw conclusions

In the scientific method, empirical evidence can be used to support the working hypothesis.

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science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.

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Which of the following are functions of an animal's movement structures like wings, legs, or fins? Select the two correct
answers. (1 point)
identifying food
keeping out bacteria and viruses
migrating to mating spots
o escaping from predators
protection from elements

Answers

The legs, wings, or fins most of the time are used in locomotion and sometimes in defense.

These are two functions of an animal's movement structures like wings, legs, or fins:

migrating to mating spots escaping from predators.

These structures are like structural adaptation defenses. These structures might be for defense, movement and for obtaining resources which might include food.

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Answer:

migrating and escaping predators

Explanation:

pls check help /edtrphzjbi​

Answers

Answer:

I don't get it but heres your answer

Explanation:

sharghvquvbOIQUugua

There you go!

5. What does the pH scale measure and why is this important?

Answers

It measures the relative amount of hydrogen and hydroxyl ions in water. It’s important, because it’s an indicator that is changing chemicals of water.

Question 7(Multiple Choice Worth 2 points) (06.02 MC) Read the two sentences. The boy scored the winning goal is on my team. name is Greg. Select the words that complete the sentences. o . that. His that. Their O who. His who. Their​

Answers

Answer:

The boy that scored the winning goal is on my team. His name is Greg.

Explanation:

14. The active site of an enzyme

a. Is where the semi-permeable membrane is located

b. Is a specific bulge of protuberance on an enzyme

C. Is a groove or crevice in the structure of the enzyme into which the substrate fits

d. Rigidly resists any alteration of its shape

Answers

Question:-

The active site of an enzyme

a. Is where the semi-permeable membrane is located

b. Is a specific bulge of protuberance on an enzyme

C. Is a groove or crevice in the structure of the enzyme into which the substrate fits

d. Rigidly resists any alteration of its shape

Answer:-

C. Is a groove or crevice in the structure of the enzyme into which the substrate fits.

Explanation:-

The active site is one such gap or pocket to which the substrate adapts and binds to the enzyme.

The active site is the region of the enzyme to which the substrate molecule binds and causes a chemical reaction. The active site is composed of amino acid residues that form a temporary bond with the substrate.

Which of these forms when air moves in the directions shown by the arrows
in the diagram?

A ) Valley Breeze
B) Land Breeze
C ) Mountain Breeze
D ) Sea Breeze

Answers

Answer:

C.

Explanation:

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Mountain breeze refers to the fact that the surface breezes are coming from the mountain and blowing into the lowlands. Thus, option C is correct.

What is the movement of air in mountain breeze?

The air cools during the night and flows into the valley from the mountainside.

As a result, the breeze blows in the other direction; it travels from the mountains to the plains and valley floor. This wind is therefore referred to as the mountain breeze.

As the air rushes in to fill the space, the air pressure decreases and a gust of wind is produced. A valley breeze, on the other hand, develops when cooler air in the valley falls to fill the space left by the warm air rising.

Therefore, Mountain Breeze in which air move from high pressure to low pressure.

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What is Not a correct statement about chromosomes,Dna,or genes

Image below

Answers

A. Genes have the code that make protein

You are working with a population of snails. During the mating season, you observe that individuals in the population will only mate with others of the same genotype. For example, Mm individuals will only mate with Mm individuals, and mm individuals will only mate with other mm individuals. There are only two alleles for this gene (M is dominant; m is recessive). You have determined that the frequency of the M allele is 0.5. After one generation, what is the expected genotype frequency for Mm individuals in this population

Answers

If matings are not random in a population and individuals mate with other individuals of similar genotype/phenotype, h0m0zyg0us frequencies increase. In this example, the genotype frequency for Mm is F(Mm) = 0.25.

---------------------------------

In the exposed example, one of the assumptions of Hardy-Weinberg equilibrium is not accomplished. There are non random matings.

Individuals mate with other snails of the same genotypes

MM  x  MM

Mm  x  Mm

mm  x  mm

We can assume this is an example of matings by similar phenotypes.

Eventually, this mating system leads to an increase in the h0m0zyg0us genotype frequency, at the expense of heter0zyg0us ones in loci that determine the trait.

Allelic frequencies do not change. Only genotypic frequencies do.

This mating system tends to separate the population into two subgroups, decreasing the amount of heter0zyg0us individuals.

          Matings              Progeny                              

MM  x  MM         4/4 MMMM  x  Mm         1/4  MM + 2/4 Mm + 1/4 mmmm  x  mm         4/4 mm

Zygotic population of the next generation

F(MM) = 4/4 MM + 1/4 MmF(Mm) = 1/2 MmF(mm) = 4/4 mm + 1/4 Mm

So, in the exposed example we know that the frequency of the dominant allele M is 0.5

f(M) = p = 0.5

knowing that p + q = 1, we can clear the equation to get the frequency of the recessive allele.

p + q = 1

0.5 + q = 1

q = 1 - 0.5

q = 0.5

f(m) = q = 0.5

Zygotic population of the next generation

F(MM) = 4/4 MM + 1/4 Mm

       F(MM) = p² + 1/4 (2pq)

       F (MM) = 0.5² + 1/4 (2 x 0.5 x 0.5) = 0.25 + 0.125

       F(MM) = 0.375

F(Mm) = 1/2 Mm

        F(Mm) = 1/2 (2pq)

        F(Mm) = 1/2 (0.5)

        F (Mm) = 0.25

F(mm) = 4/4 mm + 1/4 Mm

        F(mm) = q² + 1/4 (2pq)

        F(mm) = 0.5² + 1/4 (2 x 0.5 x 0.5) = 0.25 + 0.125

        F(mm) = 0.375

The expected genotype frequency for Mm individuals in this population is F(Mm) = 0.25.

------------------------------

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A birdwatcher wants to identify an eastern bluebird. What feature of a bird should the birdwatcher evaluate first to identify an eastern bluebird?

Answers

Explanation:

In this case, I would suggest looking at the overall color of the bird as well as notable color patches on the wings, tail, or the head.

Also note whether or not the edges where colors meet are blurred or smooth/blended.

the role of dna in cellular differentaation

Answers

Answer:

controls the way cells function, also determines what type of specialized cells will be made.

Which statement best describes energy release in cellular respiration? (1 point)

Stored chemical energy is broken down and released in the cytoplasm.
Stored chemical energy is broken down and released in the cytoplasm.

Stored chemical energy is broken down and released in the mitochondria.
Stored chemical energy is broken down and released in the mitochondria.

Stored chemical energy can be used immediately and is released in the cytoplasm.
Stored chemical energy can be used immediately and is released in the cytoplasm.

Stored chemical energy can be used immediately and is released in the mitochondria.

Answers

Answer:

During cellular respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide and water. The energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate).

So the answer is Stored chemical energy is broken down and released in the mitochondria.

Explanation:

In cellular respiration, stored chemical energy is broken down and released in the mitochondria. The correct option is B.

What is mitochondria?

Mitochondria are the membrane-bound organelles that create the maximum of the chemical energy necessary to power the biochemical reactions of the cell.

The mitochondrial energy is stored in a small molecule referred to as adenosine triphosphate (ATP).

Cellular respiration is the way by which organic fuels are oxidized in the presence of an inorganic electron acceptor, encompassing one as oxygen, to give enormous amounts of energy and pressure the majority production of ATP.

Cellular breathing is the way by which cells in plants as well as animals break down glucose and convert it into power, which is then used to perform work.

The goal of cellular respiration is simple: to provide the energy that cells require to function.

Thus, the correct option is B.

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Which components can be found in all living organisms?


A. guanine and chlorophyll


b. nitrogen and iodine



c. adenine and cytosine


d. estrogen and testosterone

i need help plsssss

Answers

Answer:

oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus.

According to Hebrews 11, what did Abraham believe God would do if Isaac was slain as a sacrifice?

Answers

Abraham believed that God could raise Isaac from the dead or more specifically that he could raise the Dead

Why is the ability to adjust conclusions when necessary important Io critical thinking?

Answers

Answer:

When new information leads to new and different conclusions, it is important to be able to adapt to the most up-to-date conclusions.

hope this helps bye-bye

An antibody is a foreign substance in the body.
a. True
b. False

Answers

Answer is B. False :)

A dowry is:
A.
Money or property given by a man to or for his bride
B.
A gift given by the bride to her mother-in-law
C.
Money or property given by a man to his parents
D.
Money or property given by the bride to her parents

Answers

Answer:

B

Explanation:

As dowry system is the social problem in which the bride/bride's family has to give money or property to the groom's family.

The bride/bride's family has to give money or property to the groom/groom's family on their marriage.

It’s A not B it’s given by the husband to be

A leech attaches to an animal and feeds off the animal's blood.

What happens to the animal the leech attaches to in this scenario?

It loses nutrients to the leech.
It gains nutrients from the leech.
It will be killed and eaten by the leech.
It will kill and eat the leech.

Answers

Answer:

Explanation:

A

Answer: [A] It loses nutrients to the leech.

Explanation:

Isabel is researching the effects of deforestation using online sources. She finds an environmental study on the relationship between deforestation and local weather. Which of the following characteristics should this study have in order for its results to be considered valid?

I. Empirical observations
II. Evidence that can be replicated
III. Outcomes that don't change with new experimentation

A. I and II
B. II and III
C. I and III
D. I only

Answers

Answer:

Here is something that might help you

Explanation:

I am not trying to plagiarize, just trying to help.

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Double stranded RNA is cleaved by

Answers

Answer:

Dicer

RNA-dependent RNA polymerase amplifies siRNAs by binding to them and making more dsRNA, which is recognized and cleaved by Dicer into secondary siRNAs. The result is the silencing of genes by amplifying the RNAi effect. In certain cases RNAi also silences genes by the formation of heterochromatin.

If a firm hires 10 workers at $9 per hour each and the 11th worker will be hired only if the wage rate falls to $8 per hour, the marginal wage rate must be _____.

Multiple Choice
−$2
$2
−$2.20
$2.20

Answers

Answer:

-2 USD

Explanation:

The answer is -$2.20

6. Why do you think satellites are placed in the thermosphere?

Answers

Answer:

It is called the thermosphere because temperatures can reach up to 1,500 degrees Celsius (2,732 degrees Fahrenheit). However, despite the high temperatures, the pressure is very low, so satellites don't suffer heat damage.

Explanation:

I hope it's help :)

Which is an example of a statement about climate?

OPTIONS

It rained 3 inches last night.



Snow and very low temperatures are predicted for tomorrow.



Florida is known for its sunny skies and warm temperatures.



I plan to go swimming tomorrow.

Answers

Answer: Florida is known for its sunny skies and warm temperatures.

Explanation: Climate refers to long term weather. This statement indicates that Florida has a usual weather. Usual can be otherwise known as long-term.

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Ava has been reading about the interactions among the components of the Earth. This group of components work together to make a/an ____

Answers

Ava has been reading about the interactions among the components of the Earth. This group of components work together to make a system.

The group of components of the Earth work together to make an environment we live in.

What are the different components of the Earth?

The interactions between Earth's five systems—the geosphere, biosphere, cryosphere, hydrosphere, and atmosphere—create the environment we are accustomed to.

The Earth's interior and surface, which are both formed of rocks, make up the first system, the geosphere. The second system is made up of the little area of the planet that may sustain life; this area is known as the biosphere. The third system contains the hydrosphere, or regions of Earth that are completely covered with water. The fourth system is the atmosphere, a gaseous envelope that maintains the planet's temperature while also supplying carbon dioxide for photosynthesis and oxygen for breathing. The cryosphere, which is composed of enormous amounts of ice in the poles and elsewhere, is the fifth system. The maintenance of the Earth as we know it depends on the interaction of all five of these vast and intricate systems.

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My dad scolded me i don’t wanna live with him I hate him

Answers

dam well i been thru worse L rip
I’m sorry to hear that, does he do that often? You should check in with a trusted adult and tell them about this. I hope you stay safe, healthy, and take care!

is the chemical reaction below A. Kinase B. mutase C. dehydrogenase D. isomerase E. none of the above

Answers

Answer:

I think it's either mutase or dehydrogenase, but I'm not exactly sure why. I haven't taken a chemistry class yet, so I don't know too much about it TBH.

what is colustrum? explain plz​

Answers

Colostrum is the first stage of breast milk. It develops during pregnancy and lasts for several days after birth. Colostrum is yellow and thick in consistency or can appear clear and runny. Babies need small amounts of food, and the mother’s colostrum is perfect in components and volume.

How could plate tectonic movements affect the evolution of life?

Answers

Answer:

A planet with oceans, continents, and plate tectonics maximizes opportunities for speciation and natural selection, whereas a similar planet without plate tectonics provides fewer such opportunities. Plate tectonics exerts environmental pressures that drive evolution without being capable of extinguishing all life. Explanation: trust :0

Other Questions
At a hospital, 56 percent of the babies born are not girls. Of the baby girls born, 12 percent are premature. What is the probability of a premature baby girl being born at this hospital? round to the nearest percent. The parallelogram has the angle measures shown. Can you conclude that it is a rhombus, arectangle, or a square? Explain. Read the two passages and answer the question.Passage 1[1]Nothing that comes from the desert expresses its extremes better than the unhappy growth of thetree yuccas.Tormented, thin forests of it stalk drearily in the high mesas, particularly in thattriangular slip that fans out eastward from the meeting of the Sierras and coastwise hills. Theyucca bristles with bayonet-pointed leaves, dull green, growing shaggy with age like an old[5] man's tangled gray beard, tipped with panicles of foul, greenish blooms. After its death, which isslow, the ghostly hollow network of its woody skeleton, with hardly power to rot, makes eventhe moonlight fearful. But it isn't always this way. Before the yucca has come to flower, whileyet its bloom is a luxurious, creamy, cone-shaped bud of the size of a small cabbage, full ofsugary sap, the Indians twist it deftly out of its fence of daggers and roast the prize for their[10] own delectation.Passage 2[1]I wandered lonely as a cloudThat floats on high o'er vales and hills,When all at once I saw a crowd,A host, of golden daffodils;[5]Beside the lake, beneath the trees,Fluttering and dancing in the breeze.Continuous as the stars that shineAnd twinkle on the milky way,They stretched in never-ending line[10]Along the margin of a bay:Ten thousand saw I at a glance,Tossing their heads in sprightly dance.The waves beside them danced; but theyOut-did the sparkling waves in glee:[15]A poet could not but be gay,In such a jocund company:I gazedand gazedbut little thoughtWhat wealth the show to me had brought:For oft, when on my couch I lie[20]In vacant or in pensive mood,They flash upon that inward eyeWhich is the bliss of solitude;And then my heart with pleasure fills,And dances with the daffodils.Both passages describe a plant. The yucca tree "stalks drearily" while the daffodil "dances." What does this word choice reveal about how the two passages view nature? Passage 1 views nature as boring while Passage 2 views natures as exciting. Passage 1 views nature as enlightening while Passage 2 views nature as depressing. Passage 1 views nature as harsh while Passage 2 views nature as delightful. Passage 1 views nature as intense while Passage 2 views nature as relaxing. what is 7x5 and ummmmmm Please help me if v=6, w=-9, and x=7 Travel back in time to the year 2008, when text messages were charged per text. Some carriers charged $59 for a basic text package of 200 texts and 20 cents per text after that. Today, most packages include unlimited text and data but cost closer to $100 a month.Write and solve an equation to determine the range of text messages you can send with the 2008 plan without spending more than $100.If you have a phone, look at your data summary. Is this range your average daily number, weekly number, or monthly number of texts? Determine how much you would have paid for the month if you had the 2008 text plan? Write this as an equation and solve It.80 POINTS!!!! 1. Explain the definitions of the four income groups.2. Identify two countries within each of the four income categories3. Why do you think the U.S. is one of the few countries to fall within the high-income category?4. Compare poverty in the U.S. to poverty in low-income economies. Write an equation of the line that passes through (0,5.2) and (-1.5,1).y= If y is a positive integer, for how many different values of y is RootIndex 3 StartRoot StartFraction 144 Over y EndFraction EndRoot a whole number?. Why did the elephant jump up and down riddle answer. Find the value of n Plz help me fast and send the answer Write a program to print sum on first 10 natural numbers.#include int main(){ int i, sum; for(i=1;i Ellen held a substance that is comprised of elements that have been chemically joined. The substance now has different properties than the elements that were joined to make it. Ellen is most likely holding a a. compound b. water molecule c. single atom d. mixture Explain in detail what it means to synchronize computers and mobile devices and include at least two strategies for keeping your files in sync in your answers Which tools would you use to make chart 1 look like chart 2 in excel. Amy is adding two numbers. She got the answerwhich is 2003 However she copied the question wrong.The one's column of the first number should be 7. shewrote it to I. The hundred's columnofthe second numbershould be 2. she wrote it to 3. What is the correct ansuelif she copied it correctly? A "sentiment" is a feeling or belief. Based on the meaning of this word, what is wilsons message in this sentence?. If the sum of squares for a sample containing 51 items equals 200, what is the standard deviation?A) 1.98 B) 2.00 C) 3.92 D) 4.00 help pls !! i am confused1. 2. 3. 4. What is the least angle measure by which this figure can berotated so that it maps onto itself?O 45O 90 O 180O 360