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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.

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Svetlanka [38]

Answer:

Explanation:

mRNA (messanger ribonucleic acid) is produced through the process called transcription in the nucleus. Transcription make ribonucleic acid from deoxyribonucleic acid. The enzyme RNA polymerase creates an RNA molecule that is complementary to the template DNA coping all the information on the DNA into the mRNA formed and 3' to 5' cap are added to stabilize the RNA after which this mRNA then moves from the nucleus where it was produced to the ribosome in the cytoplasm for translation of the information that is coded in the bases.

FGF5 is a gene that is encoded in the DNA.

5 0
3 years ago
Which terrestrial biomes are both dependent upon periodic severe drought and/or fire?
Elis [28]

Grassland terrestrial biomes are both dependent upon periodic severe drought and/or fire.

Terrestrial biomes are ecosystems that can be found anywhere on earth that has a similar climate pattern and are not necessarily close to one another. Tropical forests are an illustration of a terrestrial ecosystem. Forests, grasslands, deserts, and tundra are some of the different biome types found in the terrestrial environment. There are eight main terrestrial biomes: temperate grasslands, temperate forests, boreal forests, Arctic tundra, and tropical rainforests, savannas, subtropical deserts, and chaparral.

The grassland biome consists of terrestrial areas where grasses predominate and there aren't many big trees or bushes. Temperate grasslands, tropical grasslands (sometimes called savannas), and steppe grasslands are the three main types of grasslands.

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5 0
1 year ago
What do scientist do if there hoptestisis is wrong?
Amiraneli [1.4K]
If a HYPOTHESIS is wrong scientists come up with a conclusion, the hypothesis doesn't matter for the result. It is just an educated guess based on the results they expect our hope the achieve.
4 0
3 years ago
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siniylev [52]
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Read 2 more answers
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garri49 [273]

Answer:

The correct answer is d all of the above

Explanation:

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2 Increase in Argiculture also increases the level of green house gases such as CO2.

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6 0
3 years ago
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