[DOC] [TLE] Fungi [PAR] The fungi that lie in association with algae, obtain sugars and other compounds 
... The body of a fungus, made up of many hyphae, is called a mycelium. .... tops, 
the arctic), and may be the only plant form surviving some of these areas ... back 
to the very origin of land plants, 400 million years ago. these fungal filaments are
... [DOC] [TLE] Lichen - Wikipedia [PAR] A lichen is a composite organism that arises from algae or cyanobacteria (or both
) living among ... Some lichens do not grow on anything, living out their lives 
blowing about the ... Lichenized fungus may refer to the entire lichen, or to the 
fungus growing in it. .... The thallus is made up of filaments of the fungus called 
hyphae. [DOC] [TLE] What are Lichens? [PAR] Pollution indicators; High mountain dwellers and Arctic survivors ... The two types 
of organisms in the partnership are so closely interwoven that they appear as ... 
Most lichens contain only one kind of alga, but some may contain two. ... The 
fungal partner forms the main body of the lichen, with the algal cells either 
scattered... [DOC] [TLE] Evolution of Plants - Biology Encyclopedia - cells, body, human ... [PAR] The fungi, plants, and animals are thought to have evolved from different ... called 
algae) are a diverse group of organisms and are divided into several phyla. ... 
and some mosses thrive in deserts, above the treeline, and in the Arctic tundra. ... 
These ancient plants, which are sometimes called prototracheophytes, may have
... [DOC] [TLE] Partners for Life | See Algae [PAR] Jul 26, 2015 ... These creatures are lichensand no, they are neither plants nor worthless. ... 
Generally speaking, the lichen's body (thallus) consists of a single fungal 
componentthe .... the naked eye, and a one-inch patch may be several hundred 
years old. Some arctic lichens are thought to be over 4,000 years in age,... [DOC] [TLE] life span | Britannica.com [PAR] Aug 23, 2016 ... The period of time between the birth and death of an organism. ... But age is less 
certain in the case of an arctic lupine that germinated from a ... the network of 
fungus filaments in the soil (the mycelia) may be as old as 400 years. ... to the 
diameter of these trees for, in many cases, more than 4,000 years and... [DOC] [TLE] Tundra - Science in Context - Gale [PAR] Some Arctic tundra is located on islands, such as Greenland and Iceland. .... 
Arctic Circle, arctic tundra may begin at about 4,000 feet (1,200 meters) above 
sea level. .... If a spore from a fungus lands near an alga these two different 
organisms can join together to .... Midges can grow very old, some living as long 
as six years. [DOC] [TLE] How does a lichen grow? - You Ask Andy [PAR] Dec 17, 2008 ... A lichen is a flowerless plant that consists of two plants living together as a single 
unit. These ... Some of these slow growing lichens are about 4,000 years old. 
Lichens ... If a fungus spore lands next to a suitable alga, a new lichen may 
develop. ... In the Arctic, lichens cover much of the ground surface. [DOC] [TLE] Unusual fungal niches - Mycologia [PAR] Unusual fungal niches are habitats where extreme conditions would be ... fungi 
occupy poorly understood niches: Antarctic dry valleys, high Arctic ... Depending 
on these factors, some species can occupy a diversity of .... gene a diversity of 
fungi was identified in 20004000 y old ice core samples from northern 
Greenland. [DOC] [TLE] Dawn Anderson, age 13, of Dodge City, Kan., for her ... - You Ask Andy [PAR] Jul 1, 2008 ... A lichen is a flowerless plant that consists of two plants living together ... These 
plants are an alga and a fungus. ... Because lichens have no roots, they can grow 
only when moistened by ... Some of the slow growing lichens are about 4,000 
years old. ... In the Arctic, lichens cover much of the ground surface

Question: In the Arctic, some of these organisms consisting of an alga & a fungus may be 4,000 years old
Answer: lichens