Quiz_Lichens

Explanation:Cladonia rangiferina, commonly known as Reindeer moss, is a type of lichen that serves as an important food source for reindeer and caribou in Arctic and sub-Arctic regions.

Explanation:Trebouxia is a common genus of green algae that forms symbiotic relationships with fungi in lichens. It is one of the most widespread phycobionts in lichen symbiosis.

Explanation:Saxicolous lichens grow on rocks and are adapted to survive in harsh, exposed environments. They play a crucial role in weathering rocks and contributing to soil formation.

Explanation:The apothecium is a type of fruiting body found in certain lichens, particularly those in the Gymnocarpeae group. It is an open, often disc-shaped structure where spores are produced.

Explanation:Lichens can be classified based on the distribution of their algal component within the thallus. Homoiomerous lichens have an even distribution of algae, while heteromerous lichens have a layered structure with distinct algal and fungal layers.

Explanation:Lichens are often the first organisms to colonize bare rocks, initiating the process of ecological succession. Their ability to withstand harsh conditions and break down rocks into soil makes them pioneers in these environments.

Explanation:The fungal component of lichens is responsible for sexual reproduction. Fungi produce spores in specialized structures, which can then disperse and form new lichens.

Explanation:Lichens can produce various types of fruiting bodies, including apothecia and perithecia. These structures are involved in the sexual reproduction of the fungal component of the lichen.

Explanation:Cyphellae are small, pore-like structures found on the lower surface of some lichens. They facilitate gas exchange, similar to the function of stomata in plants.

Explanation:Soredia are small clusters of algal cells surrounded by fungal filaments. They are a common means of asexual reproduction in lichens, allowing them to disperse and colonize new areas.