Project
1/ Many heterotrophic organisms live
on one and the same plant. Observe
one such plant in your neighbourhood
and find out about the heterotrophs
that depend upon it for their food.
Observe and make notes about other
organisms that use these heterotrophs
as their food.
Answers
Explanation:
Chlorophyllous plants make their own food by photosynthesis, from water and minerals drawn from the soil. They are autotrophic. In contrast, heterotrophic plants are incapable of feeding themselves. They draw all or part of their nutrition from other living beings. There are different types of heterotrophic plants, depending on their relationship with their host. In symbiosis, the heterotrophic plant and its host both benefit from their association. Parasitic plants, on the other hand, use their host’s resources for themselves alone.
Symbiotic plants
Symbiosis is the association of two organisms that mutually benefit from their life together. Lichens are formed of fungus and alga living in symbiosis. The chlorophyllous alga makes the organic matter that both partners need, while the fungus supplies water and minerals for the pair. Lichens generally grow on the surface of trees and rocks.