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Cell survival

Cell survival

The span of viability of a cell characterised by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability.


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A question about evolution.

... questions. Was the blueprint of all biological features in the first cell? No, if you believe in evolution from single cell to multicellular organisms. ... random mutations appear all the time and those that are detrimental to survival are removed from the population by negative selection (=organism ...

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by Cat
Sun Apr 20, 2014 3:18 pm
 
Forum: Evolution
Topic: A question about evolution.
Replies: 1
Views: 638

Evolution or De-evolution?

... a creationist. I have a problem with "evolution" from single cell microbe to multicellular organism for several reasons: 1. First there ... evidence of gene gain in bacteria. 2. From biochemical standpoint, survival of the species is better optimized in bacteria. Being multicellular ...

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by Cat
Fri Feb 21, 2014 1:47 am
 
Forum: Evolution
Topic: Evolution or De-evolution?
Replies: 52
Views: 40929

Living or not? (viruses,viroids and prions).

... with viruses. They're no ordinary parasites, they're obligate intracellular parasites , entering inside the cells of their hosts as a requirement for survival (thus making it "obligatory"). The chlamydias have two forms, transforming ...

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by wildfunguy
Thu Oct 17, 2013 10:20 pm
 
Forum: Microbiology
Topic: Living or not? (viruses,viroids and prions).
Replies: 15
Views: 9745

Re: Beneficial mutations vs harmful

... they just happen to help in that particular environment (eg. sickle cell anemia). Neutral mutations may or may not be proliferated as they have ... add up evolution? A beneficial mutation would feasibly aid in the survival of a given species, and the advantage would then allow that specimen ...

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by Coelacanth
Sun Oct 13, 2013 6:08 am
 
Forum: Evolution
Topic: Beneficial mutations vs harmful
Replies: 12
Views: 7356

Re: Help with indentifying object - can't narrow to even kingdom

... the plasmodium begins to dry out too quickly or is starved, it forms a survival structure called a sclerotium. This hard-walled mass protects the dormant cells inside until better conditions for growth return. Inside the sclerotium, the plasmodium ...

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by Sadial
Fri Jul 26, 2013 6:29 pm
 
Forum: General Discussion
Topic: Help with indentifying object - can't narrow to even kingdom
Replies: 2
Views: 3267
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