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Survival rate

survival rate

The proportion of survivors in a group, e.g., of patients, studied and followed over a period, or the proportion of persons in a specified group alive at the beginning of a time interval who survive to the end of the interval. It is often studied using life table methods.


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Photosynthesis Experiment - Do LED's work?

The rate of photosynthesis in the majority of plant species is the highest at approximately 450 ... energy emitted from an LED is sufficient to maintain sufficient photosynthesis for the survival and growth of plants.

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by Coelacanth
Sun Oct 13, 2013 6:33 am
 
Forum: Botany Discussion
Topic: Photosynthesis Experiment - Do LED's work?
Replies: 8
Views: 6542

Re: Origins of life

... but you seem to say everything progresses towards a minimum degree of survival. Once the species is surviving it stops evolving? Any further evolution ... can we expect homo sapiens to change given the rapid increase in the rate of technological dependence. Evolution is change over time. It never ...

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by Cat
Sat Jul 13, 2013 2:59 pm
 
Forum: Evolution
Topic: Origins of life
Replies: 327
Views: 178246

Re: Origins of life

... but you seem to say everything progresses towards a minimum degree of survival. Once the species is surviving it stops evolving? Any further evolution ... can we expect homo sapiens to change given the rapid increase in the rate of technological dependence.

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by animartco
Wed Jul 10, 2013 12:41 pm
 
Forum: Evolution
Topic: Origins of life
Replies: 327
Views: 178246

holographic origin of life

... everyday on earth from the light of the sun that lead not only to the survival of the first forms of life, but also to their survival of the first ... that are very close to each other,somewhere in the group.If they separate with less speed than the others and we consider these 3 birds as a system,the ...

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by minasole
Tue Oct 16, 2012 10:19 pm
 
Forum: Evolution
Topic: holographic origin of life
Replies: 13
Views: 16556

Re: Re:

... Beethoven, Mozart and Bach with Yani, Yani and Yani." At this rate, it's just a matter of time until we wipe out natural selection, which ... know. I come from a long line of people who were pretty dedicated to survival and reproduction, and so do you. So does everybody else. I'm cautiously ...

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by Rap
Sat May 26, 2012 6:32 pm
 
Forum: Evolution
Topic: Perception and Evolution
Replies: 14
Views: 8261
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