1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
liberstina [14]
3 years ago
14

Which theory did Pasteur disprove by using boiled beef broth and a flask with S-shaped tubing?

Biology
2 answers:
MAVERICK [17]3 years ago
3 0
Cells came from nonliving things.
Papessa [141]3 years ago
3 0

Answer:

Theory of spontaneous generation.

Explanation:

Theory of spontaneous generation stated, life arose from non-living things. Pasteur disprove this theory by S-shaped tube experiment. He used swan-neck flasks (twisted necks) and filled them with sterilized beef broth. This allowed entry of air to the flasks from outside, but not microorganisms.

In these sterilized flasks, microorganisms did not grow as there was no entry of airborne microbes. But if the necks were broken, microorganisms entered and allowed growth of microorganisms.

Thus, Pasteur proved life comes from pre-existing life and disproved theory of spontaneous generation.

You might be interested in
What is the term for the protective wall that helps bacteria survive unfavorable conditions? A. endospore B. botulism C. aerobic
VARVARA [1.3K]

Answer:

The answer is A

Explanation:

5 0
3 years ago
Where is the synthesis of membrane proteins completed?
ioda
The synthesis of membrane proteins is completed in both the smooth endo retic for the lipid tails and the rough endo retic for the rest of the phospholipid structure. Proteins are transported to the golgi apparatus in vesicles (membranous sacs) and bud off of the golgi apparatus in vesicles as well. The vesicle then fuses with the membrane and releases its contents. 
4 0
3 years ago
Describe the type of gaseous molecules that are most susceptible to non ideal behavior
const2013 [10]
An ideal gas is a theoretical gas in which inter molecular forces do not exist among the molecules and the molecules do not occupy any space. A gas that does not obey ideal gas law are described as non ideal in behaviour. Gases that are most susceptible to non ideal behaviour are those that have attractive and repulsive forces among their molecules and whose particles have volume. Gases that exhibit non ideal behaviour has compressiblity factor ratio that deviate from 1.
3 0
3 years ago
Cephalization, the clustering of neurons and interneurons in the anterior part of the animal, is apparent in I) mammals II) cnid
zzz [600]

Option (III) .Cephalization, the clustering of neurons and interneurons in the anterior part of the animal, is apparent in <u>Planaria.</u>

What is planaria?

  • Planaria is a genus of planarians in the family Planariidae.
  • When an individual is cut into pieces, each piece has the ability to regenerate into a fully formed individual.
  • Currently the genus Planaria is defined as freshwater triclads with oviducts that unite to form a common oviduct without embracing the bursa copulatrix and with an adenodactyl present in the male atrium.
  • The testes occur along the whole body.
  • Planaria originally have habitats in dark, murky water which results in such sensitivity .
  • They are also sensitive to other stimuli such as chemical gradients, vibration, magnetic and electric fields .
  • Their central nervous system includes the anterior (head, brain and eyes) and middle (abdominal trunk and pharynx).

To know more about planaria, refer:

brainly.com/question/1917416

#SPJ4

8 0
2 years ago
Ecosystems involve living organisms interacting with non-living things in a productive way; how is photosynthesis an example of
IgorLugansk [536]

Photosynthesis deals with plants that are a living being receiving energy from sunlight which is not living.            

4 0
3 years ago
Other questions:
  • In what way does the shape of a molecule affect how the molecule is involved with living systems?
    8·2 answers
  • How do aquatic factors affect the distribution of aquatic life (include both biotic and abiotic factors)?”
    14·1 answer
  • TRUE or FALSE<br><br> Sandbars are formed through erosion by waves.
    14·1 answer
  • What is climacteric​
    15·1 answer
  • What do we call the process when two dominant alleles are expressed and do not blend?
    11·1 answer
  • Name the four levels of group organization of living things in order of increasing complexity
    5·1 answer
  • Water is necessary for physical and chemical processes by … ?
    8·1 answer
  • The nucleus of a cell is most responsible for what function?
    15·2 answers
  • In the 1970s, the U.S. government passed laws to protect the water supply.
    7·1 answer
  • 3. What does the name protozoa mean?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!