im confused
a. are parasites in the digestive systems of mammals.
b. are bacteria that survive in extremely hot water.
c. have a three-chambered heart and a closed circulatory system.
d. are symbiotic combinations of algae and fungus.
2007-06-05 09:22:49 · 7 answers · asked by BOL3N$ HOODPiiNC3$$ 1 in Science & Mathematics ➔ Biology
d
2007-06-05 09:25:32 · answer #1 · answered by ♥TacySay♥ 12/18/08 3 · 0⤊ 0⤋
d. Symbiotic combinations of fungus and algae.
Caribou eat them. Google this and you'll see a picture of the them. They look like a plant low to the ground on the tundra.
2007-06-05 16:26:49 · answer #2 · answered by 354gr 6 · 0⤊ 0⤋
D. lichens are those greenish grey spots you see on rocks and tree trunks. the algae provides nutrients for the fungus. the fungus provides a moist environment for the algae.
2007-06-05 16:26:19 · answer #3 · answered by susishko 2 · 0⤊ 0⤋
1) http://www.google.com/
2) Ask a reindeer.
google
reindeer lichen 118,000 hits
2007-06-05 16:26:59 · answer #4 · answered by Uncle Al 5 · 1⤊ 0⤋
The answer is D
2007-06-05 16:26:53 · answer #5 · answered by David T 3 · 0⤊ 0⤋
d They grow on rocks, thin and grey-green.
2007-06-05 16:26:11 · answer #6 · answered by Anonymous · 1⤊ 0⤋
D
2007-06-05 16:25:45 · answer #7 · answered by hcbiochem 7 · 0⤊ 0⤋