Web Results

Multicellular organism - Wikipedia


Multicellular organisms are organisms that consist of more than one cell, in contrast to unicellular organisms. .... In other groups, generally parasites, a reduction of multicellularity occurred, i...

Why do multicellular organisms generally live longer then unicellular ...


A multicellular organism usually lives longer than a one-celled organism; one- celled organism is limited to the life span of a multicellular organism, however, ...

Why do multicellular organisms generally live longer than unicellular ...


A multicellular organism usually lives longer than a one cell organism. A one celled organism is limited to the life span of it's one cell.

Unicellular and Multicellular Organisms | Biology@TutorVista.com


Unicellular organisms are made up of a single cell like most bacteria, while the ... They live together and all the cells of the colony is the same. ... Nutrition is usually by the process of phagocytosis, where the food particle is engulfed and ... Organisms that consist of more than one cell are known as multicellular organisms.

Why Do Some Animals Live Longer Than Others? - Scientific ...


Apr 1, 2015 ... The key indicator for animals may be total energy expended over a lifetime.

Microbes Are Immortal, So Why Aren't Humans? - Washington Post


Must we many-celled organisms die because of some necessity imposed by ... Still, the question remained: Do we age and die because our bodies are built ... The human cells that live for about 50 cell divisions are fetal or newborn cells .... Another, even more tantalizing, found that mice fed extra vitamin E lived longer than ...

According to the theory of evolution, why do we die? - Quora


I think no-one would deny the fact that it would be very hard for nature or humans to completely .... It's not that living things die; it's that multicellular organisms die. But why ... Aging longer is just not something evolution has had a reason to optimize. ... one child cell may be slightly "younger" (less prone to...

Why some animals live longer than others -- ScienceDaily


Mar 29, 2012 ... Scientists have developed a new method to detect proteins associated with longevity, which helps further our understanding into why some ...

Why do bigger animals live longer? - Quora


Apparently all mammals at least, generally have the same number of heartbeats in their life ... Larger mammals generally have longer lifespans than smaller ones. The proposed reason appears to be overly simple: Larger species have an ...

BBC - Future - Why do women live longer than men?


Oct 2, 2015 ... As soon as I was born, I was already destined to die earlier than half the babies in my maternity ward – a curse that I can do little to avoid.