Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12

# Maximum Life Span of Organisms

#### description

• Maximum life span of organisms
• Approximate life spans of some organisms

# Maximum life span of organisms:

1. Life Span: The length of time a species may exist in the best of conditions is referred to as its life span. The dog, for example, can live in captivity for 20 years, whereas the tortoise can live for over 150 years.
2. Life Expectancy: Life expectancy is the estimated number of years that a person born within a certain time period might fairly be expected to live. In other words, it is the average number of years a person born in a certain country would live if death rates at each age remained constant in the future. Life expectancy is a hypothetical number calculated for humans based on mortality statistics retrieved from insurance businesses, that were born in the same period and are likely to live, and is affected by the varying death rate over time.
3. Average life span: The average life span, which is a statistical theory derived from the examination of mortality data for each species population, provides a more indicative evaluation.
4. Maximum life span: The greatest life span is merely a theoretical figure; the precise amount cannot be determined based on current knowledge. It is frequently presented as a ballpark estimate based on the longest-lived entity of that species known to date.

### Approximate life spans of some organisms:

The table below shows the life span of different species -

 Entity Life span (Maximum) Elephant 60-75 years Rose 5-7 years Dog 25 years Butterfly 1-2 weeks Crow 15 years Banana Trees 20-25 years Cow 20-25 years Parrot 140 years Crocodile 60 years Horse 25-30 years Fruit Fly 25-30 days Rice Plant 3-4 months Tortoise 100-150 years Banyan Tree 200–500 years House rat 3.5 years Lion 30 years Tiger 25 years Chimpanzee 45-60 years Giant Salamander 50-55 years Humans 60-100 years Hummingbird 8 years Squirrel 16 years Guinea pig 8 years Monkey 26 years Rabbit 13 years
If you would like to contribute notes or other learning material, please submit them using the button below.