Question

Lichens (small green plants) growing on a large boulder release enzymes and other acids that slowly break the rock apart. This is an example of:Required to answer. Single choice. (1 Point) plant acids exfoliation abrasion

Answer 1

Lichens are composite organisms consisting of a fungus and a photosynthetic organism. They can colonize rocks and release enzymes and acids, which slowly break down the rock in a process known as exfoliation.

Step-by-step explanation:

Lichens are composite organisms consisting of a fungus and a photosynthetic organism, usually an alga or cyanobacterium, living in a symbiotic relationship. The fungus provides minerals and protection for the photosynthetic partner, while the photosynthetic organism supplies carbon and energy through carbohydrates. Lichens can colonize rocks and release enzymes and acids that slowly break down the rock, contributing to the creation of soil. This process is an example of exfoliation, as the lichens gradually break apart the rock.

Lichens, which are unique organisms comprised of a fungus and a photosynthetic partner (an alga or cyanobacterium), have a remarkable ability to grow on hard surfaces, including large boulders. When lichens grow, they release enzymes and acids that can break down the substrate they are growing on. This process of breaking down rocks is an example of a biological weathering called bioerosion. These organisms are essential in many ecosystems as pioneer species in primary succession, contributing to soil formation and providing nutrients to subsequent plants.

Answer 2

plant acids

Step-by-step explanation:

A lichen consists of a photosynthetic microorganism such as, for example, a photosynthetic green alga, which is surrounded by the filaments of a fungus. Moreover, chemical weathering is a gradual process where chemicals react with the minerals in the rock to form new minerals, oxidize or simply dissolve them. Lichens can lead to chemical weathering of rocks via the excretion of organic acids (e.g, oxalic acid) capable of dissolving minerals and chelating metallic cations.