what is the life span of red algae?
Anywhere from a few hours days to thousands of years. Some red algae can compllete ther life cycle in a matter of days and then die. So their lifespan is 24 hours. In contrast many single celled filamentous algae are practically immortal. The individuals alive today could have been alive for thousands or millions of years. Remember 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.
