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mote1985 [20]
2 years ago
12

What did virchow observe that led him to determine one of the main components of cel theory?

Biology
2 answers:
Annette [7]2 years ago
6 0

Answer:

a cell splitting into two cells

Explanation:

Morgarella [4.7K]2 years ago
5 0
In the year 1850, Rudolf Virchow was studying cells under a microscope, when he observed that cells were dividing and forming new cells. Realizing what he had observed, he understood that living cells reproduce new cells through division. Basing on his conclusion and realization, Virchow proposed that living cells came only from the other living cells.
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Answer:

  • The organism previously used 15N for replication so all the DNA molecules were of 15N15N type. Then the organism is shifted to a medium where only 14N is available for replication.
  • According to semi conservative mode of replication, a newly synthesised DNA molecule consists of one new strand and one parental strand. So after the first round of replication, All the 15N strands will synthesise new DNA strands using 14N resulting into intermediate 15N14N DNA molecules. Hence, only one band would be observed (15N14N) above the original 15N15N band since 15N14N has lighter isotope too so it will be lighter than 15N15N molecules and will lie above it.
  • After second round of replication, 15N strand from 15N14N would synthesise another 14N strand. 14N strand from 15N14N molecules will also synthesise another 14N strand. So now, 50% of the DNA molecules will be of 15N14N intermediate type and 50% of them will be of 14N14N type.Two bands will be observed above the original 15N15N band. One band of 15N14N molecules will be right above it and other band of 14N14N molecules will be even higher because it is the lightest band since it has only the lighter isotope of nitrogen.
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3 years ago
Biologists have found more than 500 species of fruit flies on the various Hawaiian islands, all apparently descended from a sing
Novay_Z [31]

Answer:

Adaptive radiation

Explanation:

Adaptive radiation occurs when an ancestral species move to a new environment that has various resources that are necessary for survival and also has environmental conditions that would ensure its offspring adapt well over time. In this new environment, the ancestral species would produce offspring with different traits and behaviors that will allow them to survive in this new environment while occupying their various niches. Over a relatively short time, different species arising from the common ancestor would occupy the new environment.

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3 years ago
Why we use two op_amp when 1+A2<A1​
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I have no idea
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A student states that organisms that reproduce asexually are at a disadvantage in an unstable environment do you agree or disagr
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Answer:

carbon and three oxygen atoms

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