How Many Pints Of Blood Are There In The Human Body?

The average adult has 10 pints of blood, depending on weight. Men average 10 to 11 pints and women nine to 10, says Dr. Mark Popovsky, medical director of the New England region of the American Red Cross. The wonder of the circulation system is blood`s life-giving ability and the body`s capacity to regenerate the components of blood within hours, days or weeks, depending on the component, Popovsky says. The Food and Drug Administration requires that blood donors wait eight weeks between donations, although the body can replace the lost plasma in hours and the platelets in a day. Within three to four weeks, the body regenerates the red cells.

fixed annuity

Fixed annuities typically pay between three and four percentage points more than the 10-year Treasury bond, which today yields 2.3%. Competitive contracts now are paying between 5% and 6%; that means a $200,000 investment will kick off about $12,000 in annual income, more than double the $4,600 you’d get from a 10-year Treasury.

Clearly, there’s a caveat. With a Treasury bond, you collect the yield while you own the bond, and your initial investment is returned at maturity. With an annuity, your initial investment, or premium, is returned through your annual payouts. If you die young, you could end up collecting less income than you paid upfront. But if you live long, it could far exceed your original investment.

the bio diversity

We develop a stochastic dynamic model to assess the effects of species richness within a trophic level or functional group on the expected temporal mean and variance of ecosystem productivity based on individual species’ productivity responses to environmental fluctuations. The model consists of the following three elements.

Replicate Ecosystems.

A set of replicate ecosystems is constructed at each level of species richness by random sampling from a species pool. This procedure corresponds to recent experimental protocols, which is necessary to separate the effects of diversity on ecosystem functioning from combinatorial effects because of species identity

the bio diversity

We develop a stochastic dynamic model to assess the effects of species richness within a trophic level or functional group on the expected temporal mean and variance of ecosystem productivity based on individual species’ productivity responses to environmental fluctuations. The model consists of the following three elements.

Replicate Ecosystems.

A set of replicate ecosystems is constructed at each level of species richness by random sampling from a species pool. This procedure corresponds to recent experimental protocols, which is necessary to separate the effects of diversity on ecosystem functioning from combinatorial effects because of species identity

the bio diversity

We develop a stochastic dynamic model to assess the effects of species richness within a trophic level or functional group on the expected temporal mean and variance of ecosystem productivity based on individual species’ productivity responses to environmental fluctuations. The model consists of the following three elements.

Replicate Ecosystems.

A set of replicate ecosystems is constructed at each level of species richness by random sampling from a species pool. This procedure corresponds to recent experimental protocols, which is necessary to separate the effects of diversity on ecosystem functioning from combinatorial effects because of species identity

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