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
seraphim [82]
3 years ago
12

Louis Pasteur was the final scientist to settle the question of Spontaneous Generation and biogenesis by

Biology
2 answers:
Genrish500 [490]3 years ago
7 0
His experiment with his swan. Expedia flask disproved spontaneous generation in that broth was left open to air yet no life grew in the broth, the neck design of the flash trapped all possible contaminates. This broth today is still sterile despite sitting in a museum for decades.
zimovet [89]3 years ago
7 0

Answer:

Louis Pasteur disproved the theory of spontaneous generation by swan neck experiment.

Explanation:

He showed that in the flask which was open to air, new living organisms arose while no life appeared in the flask which was not open to air (in the flask with swan neck). He showed that life did not come from the killed yeast in the flask with curved neck where as in the other flask which was open to air, new organisms arose from killed yeast.

The purpose was not to show that new organisms came from killed yeast but to explain that it was actually the "air" in which living organisms were present that entered the flask when it was kept open to air. Thus life comes from pre-existing living organisms.

You might be interested in
Look at the sample of sedimentary rock to determine which fossil is the oldest.
zysi [14]

4

.....

Z zz

Z

Z

Z

Z

Z

Z

Z

Z

Z

Z

Z

4 0
3 years ago
Read 2 more answers
Georgio is jogging barefoot along the beach when he suddenly steps on the sharp edge of a broken shell. he instantly feels pain
ikadub [295]
<span>Georgio instantly feels pain due to the message carried to his brain by </span>myelinated axons.  The message of the ache is carried by unmyelinated axons.
The myelinated axon is highly "insulated" axon that r<span>eceives input and transmit impulse quickly.</span>
The purpose of the naked axon with larger dendritic field which is called unmyelinated axon is to receive as much input as possible.

6 0
3 years ago
What are vestigial traits? what are homologous structures? what are analogous traits? can you explain these using the terms "ada
exis [7]
Vestigial traits are adaptations to environmental pressures which are no longer present.

homologous structures are similar structures found in different species that were present in a common ancestor.

analogous traits are similar traits found in different species that were developed independently (this process is known as convergent evolution)
7 0
3 years ago
Climax community- most stable community that takes hundreds of years to develop. The types of organisms change due to __?__.
Svetlanka [38]

Answer:

competition

Explanation:

An ecological community is a naturally occurring group of native plants, animals and other organisms that are interacting in a unique habitat. Its structure, composition and distribution are determined by environmental factors such as soil type, position in the landscape, altitude, climate and water availability(Department of Agriculture).

A climax community refers to the last stage of ecological succession in which the community remains relatively unchanged unless it is destroyed by events such as fire or human interference.

Competition between species in the same habitat is an important biotic factor in discussing ecological succession and the emergence of climax communities. Competition leads to a drop in the diversity of species in a given ecosystem because the dominant species live on and reproduce while the other species die off.

6 0
3 years ago
Why is oxygen important for all body cells?
Masja [62]

Answer:

Our body cells require oxygen to release energy.

Explanation:

The oxygen that we take in during respiration is used to break down the food we eat to release energy from it. When we breathe in oxygen, it diffuses into blood from the lung, where it is transported by red blood cells to the entire body to be used to produce energy.

8 0
3 years ago
Other questions:
  • A glucose molecule is the A. smallest type of protein. B. monomer of starch and cellulose C. largest of the carbohydrate polymer
    14·1 answer
  • Check all the characteristics below that describe<br> Compounds
    7·1 answer
  • The autonomic nervous system is also known as the __________ nervous system because it involves involuntary actions in the smoot
    10·1 answer
  • 5. Why are index fossils useful in dating rock layers?
    12·1 answer
  • Knees
    10·1 answer
  • PLS PLS HELP
    8·1 answer
  • Which human activity has affected the nitrogen cycle? i. use of fertilizers ii. combustion of fossil fuels iii. deforestation?
    11·1 answer
  • Describe, in three or four steps, how toxins get more concentrated in organisms going up the food chain
    12·1 answer
  • Toxicology is used to determine
    14·2 answers
  • Nucleotides are referred to by_____they contain .
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!