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Age-specific rate

Age-specific rate

a rate for a specified age group, in which the numerator and denominator refer to the same age group.


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Gene Upregulation/Increased Expression in HMG-CoA Reductase

... was explaining that low serum cholesterol would result in increased LDL-Receptors but would not result in upregulation of HMG-COA Reductase (the rate limiting step of cholesterol synthesis) However, wouldn't you expect to see the body compensate for low serum cholesterol by increasing cholesterol ...

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by Upperninety8
Tue Sep 30, 2014 3:21 am
 
Forum: Genetics
Topic: Gene Upregulation/Increased Expression in HMG-CoA Reductase
Replies: 0
Views: 49

1 small multiple choice question [population dynamics]

... continue to be favourable), similar to what the human population has been going through. If a population is small enough, the reproduction rate can be so low that there is a lag phase before any initial increase in population size. I.e. births = deaths for the initial period.

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by BasicBiology
Wed Sep 24, 2014 7:47 am
 
Forum: Ecology
Topic: 1 small multiple choice question [population dynamics]
Replies: 1
Views: 281

The influence of area on the number of species

... is just a generalization, so don't take it as gospel. I think it works because as area increases the number of niches doesn't increase at the same rate. You get a certain amount of redundancy build up as area increases and the same species fill up more area. If you cut the area down to 10% you ...

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by BasicBiology
Wed Sep 24, 2014 7:12 am
 
Forum: Ecology
Topic: The influence of area on the number of species
Replies: 7
Views: 3153

Re:

... are compatible and some are not, while they all must be compatible to each other (more less) Thank you for your comment - Like the timescale, the rate of decline seems arbitrary. It could be rapid or not. I'm wondering if there was a first 'ancient' female that could successfully reproduce with ...

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by BiologicalRush
Wed Jun 25, 2014 8:10 pm
 
Forum: Evolution
Topic: Human Gamete Compatibility Going Backwards
Replies: 9
Views: 4875

diffusion

how does the size of a molecule affect the rate of diffusion. I am confused how this works. any help would be appreciated.

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by kristenb
Fri Apr 04, 2014 6:12 am
 
Forum: Cell Biology
Topic: diffusion
Replies: 2
Views: 1227
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