what is the life span of red algae?
84441
Anywhere from a few hours days to thousands of years.\n\nSome red algae can compllete ther life cycle in a matter of days and then die. So their lifespan is 24 hours.\n\nIn contrast many single celled filamentous algae are practically immortal. The individuals alive today could have been alive for thousands or millions of years.\n\nRemember red algae is an entire phylum. Asking for the lifespan is as pointless as asking for the life span of flowering plants. And the range is  comparable: anywhere from days to millenia.
799733
Algae provide food and oxygen for many creatures that live in the same environment. Some examples of algae are seaweed and pond scum. However, in intense algae blooms due to nitrogen run off from farms, a plant fertilizer that cause the algae to grow out of control it leads to oxygen depletion in the water known as hypoxia. When the algae die off bacteria attack the algae and use up all the oxygen. It is a delicate balance.
742768
The Red Sea got its name from a phenomenon caused by a type of algae called Trichodesmium Erythraeum, which is found in the sea. When these algae blooms die off the blue-green color of sea appears to change to reddish-brown color. \n\nIt's not always red, just when the algae dies off.
129350
Life span: 25 to 30 years in the wild, up to 45 years in zoos
359638
1.)No one knows for sure how long killer whales live. \n\n2.) For unknown reasons, killer whales have a high calf mortality rate in some areas of the world.  In the Pacific Northwest, for example, 43% of all calves die in the first six months.  In other killer whale populations, calf mortality may be as high as 50% during the first year. \n\n3.)  Long-term studies will ultimately answer this question.  By counting growth layers in teeth, scientists find that killer whales in the North Atlantic may live at least 35 years.  Studies are still refining this method of aging. \n\n\nResearchers can estimate a killer whale's age by examining a sliced section of tooth and counting growth layer groups.\n\n\n4.)  Scientists in the Pacific Northwest estimate life expectancies by using information derived from field observations that began in the 1970s.  These scientists believe that if a killer whale survives the first six months, a female's life expectancy is 50 years and a male's is 30 years. \n\n5.)  With continued research, it is likely that differences in longevity will be found in killer whale populations around the world.
843966
There is a whole order of insects with a similar life expectancy.  It is called Ephemeroptera.  The name comes from the same root as ephemeral, meaning of short duration or fleeting.  The Ephemeroptera are commonly called mayflys.  They have a long life as larvae on the bottoms of streams and rivers.  After two or three years, they come out in the adult stage, mate, lay eggs and die.  They do not eat, serve as fish food while they try to lay their eggs and are gone.  They may live more than one day but not by much.\nI don't know of any organism that actually has a total life span of only one day.
390131
There are several kinds but, I believe, only three that inhabit humans.  They can reach a length of 50 ft and can live 20-30 years depending on the specific species.
1042566
try this site http://www.sandiegozoo.org/animalbytes/t-hummingbird.html ... oh the lifespan is 6-12 years
813170
Average life span is appr. 6 weeks!!
525108
achatinidae snails 5-7 years\nhelix snails 2-3 years\naquatic apple snails 1 year\noldests snails 30-35 years
370147
when i was 16 i did swim in a pool with lots of green algae, (not enough to really see, but more than normal,) and my hair definately had a serious green tinge to it for atleast 3 months. i don't know much about blue algae though.
194216
Phosphate is an essential nutrient to plants, including algae. In bodies of freshwater it is often a limiting nutrient, meaning that the availability of phosphate is what controls the amount of plant life in the water. When this balance is upset by human input of phosphates either from fertilizer runoff, or once common phosphate based detergents (now outlawed in the US), there are algal blooms. These algal blooms soon die off and the resulting decomposition process will often consume all available oxygen in the water, killing fish and other aquatic life. This is known as eutrophication. Eutrophication also happens naturally over thousands of years and is part of the natural aging process of a lake.\n\nPhosphate moves in a cycle like many other nutrients. It comes from erosion of rocks and is picked up from solution by plants. From the plants it moves up through the food chain, or may return directly to soil or water through decay of the plant. It accumulates in sediments, which eventually become rock and the cycle is repeated.
378971
I have found reliable citations at Fishbase of 29 years, and others cite 17-15 years (for the species Chimaera monstrosa). This is not unexpected, given that these fishes, like all chondrichthyans, grow relatively slowly and take several years to become sexually mature. These are very long-lived animals.\n\nhttp://www.fishbase.org/PopDyn/PopCharList.php?ID=2503&GenusName=Chimaera&SpeciesName=monstrosa&fc=25
1172959
Many species of algae reproduce sexually and asexually.    Sexual reproduction in algae is often triggered by environmental stress\n\nDuring asexual reproduction, the algae first absorbs its flagellum, then the haploid cell divides mitotically up to three times, and from two to eight haploid flagellated cells called zoospores develop within the parent cell, lastly, the asexual reproductive cells break out of the parent cell, disperse, and eventually grow to full size. \n\nSexual reproduction begins by haploid cells dividing mitotically to produce either “plus” or “minus” gametes. A plus gamete and a minus gamete come into contact with one another and shed their cell walls, then they fuse and form a diploid zygote, which develops a thick protective wall; this resting stage of a zygote is called a zygospore.  A zygospore can withstand bad environmental conditions; during the bad environmental condition, the thick wall opens and the living zoospore emerges.\n\nyou can also refer following link to have more details.\n\nhttp://io.uwinnipeg.ca/~simmons/16labman05/lb1pg8.htm\n\nHope this helps!!!
1137807
Life expectancy of animals and plants\nThe vast majority of animals have shorter life expectancies than humans do, and typically the lifespan of the animal increases with size. Some examples include:\n\nCats have lifespans in the 14-20 year range. \nLarge herbivores (cattle, horses, camels, deer) in the 30-50 year range. \nBirds usually live 10-30 years, with parrots - particularly macaws - and several seabirds notable exceptions, with lifespans ranging from 40-80 years. \nElephants have lifespans of 50-80 years. \nBlue whales can live from 40 to 80 years. \nBowhead whales are thought to live up to 200 years, with a few individuals found to have century-old harpoons embedded in their blubber. \nDogs live 10-25 years. \nSome turtles live to 150 years or more. \nCertain trees have almost outlived recorded human history; the baobab tree can live for 1,000-4,000 years, although it is understandably difficult to measure this. Similarly long-lived are olive trees, domesticated in the Mediterranean. Several olive trees still alive today were nurtured by the ancient Greeks. \nMany corals can potentially live for over 100,000 years. However, there is no consensus among marine biologists how to determine age of a coral, and whether or not it is really a single organism.
278098
37\n\nhttp://www.tesarta.com/www/resources/library/lifespans.html
1031491
Natural Life is until you die, an Life is 20yrs