Throughout history, many unscientifically based claims have been made. One such claim was
that some people believed that fleas actually came from dust. Which part of the cell theory
provides a basis for disproving this claim?

Answers

Answer 1

Answer:

There are no options to this question, however, it can be answered. The answer is:

All cells arise from previously existing cells

Explanation:

The universal cell theory was proposed in 1830's by three scientists viz: Rudolf Virchow, Mathias Scleiden, and Theodor Schwann. The cell theory consists of three major components which are generally accepted and used till date. The components are:

- All living things are made up of one or more cells

- The cell is the fundamental and basic unit in every living thing.

- All cells arise from previously existing cells via cell division

According to this question, many unscientifically based claims including the believe that fleas actually came from dust have been made. This claim has been DISPROVED by the part of the cell theory that states that "All cells arise from previously existing cells via cell division". Hence, fleas do not arise from dust but from other cells according to cell theory.

Answer 2

It can be deduced that the cell theory that provides a basis for disproving this claim is that all cells are from existing cells.

What is a cell theory?

It should be noted that a cell theory simply means that all biological organisms are made of cells.

In this case, some people believed that fleas actually came from dust. This was proved wrong as the cell theory states that all cells are from existing cells.

Learn more about cell theory on:

https://brainly.com/question/3966602


Related Questions

Match the following functions to the correct type of tissue.
storage and transport
Vabsorption, secretion, and sensation
protection, growth, and repair
support and binding

Answers

connective tissue = storage and transport

epithelial tissue = absorption, secretion, and sensation

epithelial tissue = protection, growth, and repair

connective tissue = support and binding

Answer:

look at the answer above me

Explanation:

High air pressure means that the air is____ and_____.

Answers

Answer:

High air pressure means that the air is colder and lighter.

The cell membrane is described as semipermeable. Which of the
following statements BEST explains what semipermeable means?
a) Only a few membranes are semipermeable
b) Most types of molecules pass through the cell membrane
c) Only a few types of molecules pass through the cell membrane
d) All molecules can pass through the cell membrane

Answers

Answer:

C.

Explanation:

only a few types of molecules pass through the cell membrane

Answer:

c)

Explanation:

Only a few types of molecules pass through the cell membrane is the best answer to this question the others are either wrong or good but not the best type

           Hope this helps         ;)

Where would muscle B in the image set most likely be found
A. Lining of a tendon
B. Lining of a thigh bone
C. Lining of the ventricle of the heart
D. Lining of the esophagus

Answers

Muscle A - Smooth muscle

Muscle B - Skeletal muscle

Muscle C - Cardiac muscle

Muscle B which is a skeletal muscle can be found in LINING OF A TENDON.(option A)

The Skeletal muscle forms those muscles that move the bones of the skeleton,they are straited because they have straitions that is strips which can be seen on examination using a microscope,they are voluntary and also under conscious control.they are roughly cylindrical in shape and lies parallel to one another with a distinctive appearance that is banded and consists of alternating dark and light strips.

Although most skeletal muscles move bones,the diaphragm is a type that is made from the type of muscle,it is made to accommodate a degree of voluntary control in breathing.

The fibre cells in skeletal muscle are cylindrical in shape and they contain several nuclei that can be up to 35cm long. Contraction of the Skeletal muscle is stimulated by motor nerve impulses that originates in the brain or spinal cord and ends at the neuromuscular junction.

When Individual muscles cells in a muscle shorten,they pull on the connective tissue framework which runs through the the whole muscle and the muscle develops a degree of tension/tone.

Skeletal muscles are found between bones in the body and they use the tendons to connect to bones.

Answer:

A. Lining of a Tendon

Explanation:

What is the difference between active & passive transport?

Answers

Answer:

An active transport requires energy, a passive transport does not.

That's all! Hope that helps :)

Organelles such as mitochondria and the endoplasmic reticulum have membranes that compartmentalize reactions and other metabolic processes. To function properly, the organelles must move substances across their membranes.

what is a feature shared by mitochondria and the endoplasmic reticulum that increases the efficiency of their basic functions?

Answers

Answer:

The correct answer is - they both have highly folded membranes.

Explanation:

Organelles such as the endoplasmic reticulum, Golgi apparatus, and mitochondria have highly folded double membranes. This highly folded membrane provides the increased surface area in the organelle.

As the inner membrane of these organelles is the site for many chemical reactions the highly folded or layered membranes get more space for such reactions to occur due to increased surface area.

Amino acid is to protein as_____________________.



Group of answer choices

A. fat is to lipid

B. DNA is to RNA

C. sugar is to fat

D. monosaccharide is to starch

Answers

Answer:

The answer is the D. because simple sugar is to starch

A wide range of marine mammals and fish live in the severe conditions of the Arctic
ocean. Whales, dolphins, walruses and seals all make there home in this North Polar
region which is covered by ice most of the year. Which of the following is used for
insulation and buoyancy in these animals?

Answers

Answer:

Blubber

Explanation:

Blubber is an accumulation of fat cells that many animals use to hold in heat and air.

○ HURRY I HAVE TO TURN THIS END ANSWER ALL○

Answers

Answer:

The fish dies.

Explanation:

Well, naturally, salt water fish need salt water to survive. They are so used to the salt that the salt solution is critical in their bodies. With the fresh water, the fish will get water sucked into its cells, until it's filled to the brim and eventually dies.

Answer: lyse

If cells do not get the right type of food/water, they will shrink and die. They will shrivel, and the cell may destruct. So, the answer is they will get smaller and shrivel (lyse.)

Hope this helps!

intro about brazil. ...........................................................................

Answers

are you serious okay dude

A baseball player catches a ball of mass 100 grams which is moving with a speed of 10 m/s in 0.2 seconds. What is the amount of force exerted by him?

Answers

Answer:9m/sx10

Explanation:because of the gravity of the earth and the tail of dinasaur

Which is present only in eukaryotic cells?
O Cell membrane
O Chromosomes
O DNA
Nucleus

Answers

the answer is Nucleus DNA

PLS PLS PLS HELPHELP HELP

Answers

Answer:

it is the last one

Explanation:

Isotopes are atoms that have the same number of protons but different numbers of neutrons. So B would not be correct...

Unit 1 Assessment
9 of 14 9 of 14 Items















Large forest fires, started by lightning, have been common in parts of the Western and Northwestern United States in the past few years. The forest ecosystem is changed by this natural disaster. In addition to the loss of property, there are other ways that forest fires affect the environment.


Which of the following is a result of a large forest fire?

Wildlife populations will increase in the area .

Wildlife populations will decrease in the area.

New plant growth will decrease for many years.

All new organisms will populate the area.

Answers

Answer:

u already know the answer

Explanation:the answer

When their population of the wildlife should be increased in the area so this result in the largest forest fire.

What is population:

Population represent the no of individuals for the specific species in the area. The animal & plant population depend upon various things for survival purpose. here the limited factors should be food, water, etc. So in the case when there is the population of the wildlife so it does not reduce the area, nor their is any decrement of the new plant growth. Also, there is no new organism that populated the area.

Therefore, When their population of the wildlife should be increased in the area so this result in the largest forest fire.

learn more about the population here: https://brainly.com/question/17029864

active transport
or
passive transport

Answers

Answer:

Passive transport

Explanation:

Passive transport is transport of substances without the requirement of energy. In contrast, active transport is the movement of substances that requires energy.

In the picture, the molecules are moving from a high concentration to a low concentration. This is transport down a concentration gradient, rather than against a concentration gradient.

Transporting molecules down the concentration gradient does not require energy, and is therefore passive transport.

In what ways can students use time management? Check all that apply. to determine when to study to choose what classes to take to decide how to use study time to decide if breaks are needed to create a study schedule

Answers

Answer:

by planning what to do next

Explanation:

Answer:

Option 3, Option 4, and Option 5.

Explanation:

if these are not correct tell me.

Which of the following is an enzyme?
the moisture in clouds
the water in a teapot
the pepsin in one's stomach
the petal of a flower

Answers

Pepsin in ones stomach

can anyone help me with biology?​

Answers

Answer:

sure

but what is that u need help with

Explanation:

Help im timed :( I am very anxious on failing

Answers

The answers are C and D or the 3rd and 4th options.

What is the relationship between the number of wolves and the number
of deer?

Answers

Answer:

if the number of wolves increase the number of deer decrease

Explanation:

because deers are prey and wolves are predators

Wolves and deer show a prey-predator relationship. This indicates that as the number of wolves increases, the number of deer decreases and if the number of deer increases it means that the number of wolves has been decreased.

What is Prey-predator relationship?

Prey-predator relationship is a type of association seen in the environment. In this relationship, one species feeds upon the other species. The prey species is the animal being fed on, and the predator is the animal who feeds. The predator prey relationship develops over time.

As the prey population increases, there is more food for the predators. So, after a small time, the predator population increases as well. This number keeps on increasing till sufficient food is available. As the number of predators keeps on increasing, more prey are captured. This results in the decrease in prey population.

The relationship between the wolf and its prey, deer is very complex.  Wolves population keep deer moving, which provides an ecological benefit for the health of the deer and plant species which are damaged from over-browsing. This keeps the number of species constant.

Learn more about predation here:
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#SPJ2

Tick () the correct answer.
1. The lowest level of organisation in a multicellular organism:
a. cell
b. organ
c. tissue​

Answers

Answer:

hhhhhhhhhhhhhhhhhhhhhhhhhhhaaaaaaaahahahaaahaa

Explanation:

Answer: it should be A

Explanation: sorry if its wrong

(ie) Which of the following will occur when blowing exhaled ar through hydrogen carbonate​

Answers

Answer:

The hydrogenation will occur

A plant-like protist

Answers

Answer:

Plant-like protists are called algae. They include single-celled diatoms and multicellular seaweed.

Explanation:

How does a decrease/decline in a top predator impact biodiversity in an ecosystem?
(GIVING HIGH AMOUNT OF POINTS FOR AN ANSWER)

Answers

Answer:

The ecosystem will fall out of balance.

Explanation:

The ecosystem will fall out of balance because once you remove the top predator, the plant-eaters will grow in numbers, they will eat all of the vegetation, and will either need to adapt or die. Predators are very important, as is everything in the food chain

How large is the visible light portion of the Electromagnetic Spectrum?

Answers

Answer:

The human eye can detect up to 700 nanometers but the range adjacent to the visible spectrum is called the near infrared and the longer wavelength part is called far infrared. The region just below the visible in wavelength is called the near ultraviolet. Hence the visible part of electromagnetic spectrum lies in between ultraviolet and infrared.

CRITICAL THINKING Making Inferences Why do you think Mesopotamia was a good location for the growth of civilization? ​

Answers

Answer:

to infer The Tigris and Euphrates Rivers provided water for drinking and for crops. Also, the flooding of these two rivers made the soil fertile.Rich silt, which helped crops grow, was left behind by floodwaters.

Explanation:

Can you help me find 10 safety violations

Answers

Answer:

Explanation:

1 there is a kid about to put a screwdriver in the outlet

2 spilt liquid on the ground

3 food around chemicals

4 nobody is wearing ppe such as goggles or gloves

5 (maybe) carrying large object and can't see there their going, may bump into someone

sorry that's all I could find, hope this helps in some way :)

side note I like your profile picture! :)

The material that contains the genetic code in a chromosome is

Answers

Please o please give me the brainiest. It would make my day!

Answer:

DNA molecule

Explanation:

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

Help i would rlly appreciate it i have been doing my work for the longest

Answers

ANSWER:

I think it's the second one.

EXPLANATION:

in primary succession newly exposed or newly formed rock is colonized by living things for the first time. in secondary succession an area that was previously occupied by living things is disturbed, then recolonizeed following the disturbance.

1What does the term "metabolism" mean? to maintain internal balance
to reproduce
to take in and use materials and energy to grow and develop​

Answers

Answer:

to maintain internal balance

Explanation:

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How can one manage the cost of college or student loan debt adequately? Sacaste la basura?Write the direct object pronoun Alan works as a salesperson for an insurance company. Recently, he sold an insurance policy to a new customer. During their conversation, Alan made a list of all the benefits that the policy would offer the customer. He politely asked the customer to list the various drawbacks of buying the policy. In the end, Alan was able to close the sale because the benefits greatly outnumbered the drawbacks. Which closing technique did Alan use in this scenario?A. assumptive closeB. Ben Franklin closeC. porcupine closeD. Sharp Angle close What is -4/5 * 10/16 Johnny took 3 mathematics test. his score in second test was 5% higher than that in the first test. his score in third test was 5%lower than that in the second test. was Johnny's score higher in the first test or second test Carol has to buy shirts for her entire family. There are 27 members in Carol's family. 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Can someone please help me with this Free brainiest if correct Bunnell Corporation is a manufacturer that uses job-order costing. On January 1, the companys inventory balances were as follows:Raw materials $ 40,000Work in process $ 18,000Finished goods $ 35,000The company applies overhead cost to jobs on the basis of direct labor-hours. For the current year, the companys predetermined overhead rate of $16.25 per direct labor-hour was based on a cost formula that estimated $650,000 of total manufacturing overhead for an estimated activity level of 40,000 direct labor-hours. The following transactions were recorded for the year:a. Raw materials were purchased on account, $510,000b. Raw materials use in production, $480000. All of of the raw materials were used as direct materials.c. The following costs were accrued for employee services: direct labor, $600,000; indirect labor, $150,000; selling and administrative salaries, $240,000.d. Incurred various selling and administrative expenses (e.g., advertising, sales travel costs, and finished goods warehousing), $367,000e. Incurred various manufacturing overhead costs (e.g., depreciation, insurance, and utilities), $500,000.f. Manufacturing overhead cost was applied to production. The company actually worked 41,000 direct labor-hours on all jobs during the year.g. Jobs costing $1,680,000 to manufacture according to their job cost sheets were completed during the year.h. Jobs were sold on account to customers during the year for a total of $2,800,000. The jobs cost $1,690,000 to manufacture according to their job cost sheets.Required:1. What is the journal entry to record the labor costs incurred during the year?2. What is the total amount of manufacturing overhead applied to production during the year?3. What is the total manufacturing cost added to Work in Process during the year?4. What is the journal entry to record the transfer of completed jobs that is referred to in item g above?5. What is the ending balance in Work in Process?6. Is manufacturing overhead underapplied or overapplied for the year? By how much?7. What is the ending balance in Finished Goods?8. Assuming that the company closes its underapplied or overapplied overhead to Cost of Goods Sold, what is the adjusted cost of goods sold for the year?9. What is the gross margin for the year?10. What is the net operating income for the year? Escribe write the answers to these questions in Spanish:1. A quin admiras? Who is your role model?2. Por qu? Why?3. Cmo es tu modelo a seguir fsicamente? How is your role model, physically?4. Cmo es tu modelo a seguir mentalmente? How is your role model, mentally? Which of these nations is the most homogenous? A. United States B. Brazil C. South Korea D. Russia E. 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