A. Answer the following questions:
1. What are unusual plants? Give examples and explain how they
are different and why?
Answers
Answer:
see the given attachment
What unusual plants ?
If something is unusual, it does not happen very often or you do not see it or hear it very often. They have replanted many areas with rare and unusual plants. To be appreciated as a parent is quite unusual.
Examples :
The Dancing Plant, The Insect Eating Plant, The Base Ball Plant, The Pitcher Plant, The Bottle Tree, The Dragon, Blood Tree, The Shy Plant, ...etc...
How and why are they unique ?
Some plants are naturally rare, and the cause may be a mystery. These rare plants are not necessarily in danger of extinction. If their habitat is secure and they continue to reproduce in the wild, no intervention is needed. Botanists do agree that rare plants are more likely to become extinct than more common species. There are particular life history characteristics recognized by scientists as increasing a plant species’ risk of extinction.
Other plants that were formerly more common have become rare because of changes in their environment. These changes are often brought on directly or indirectly by people’s patterns of settlement, transportation, recreation, and use of natural resources. We can help rare species recover and even thrive sometimes by making changes in our own behaviors. For most species, rarity results from some combination of anthropogenic (human-induced) and evolutionary ("natural") factors rather than a single cause.
Human causes of rarity, direct and indirect, are identifiable for many rare plants. The more common are:
• Loss of habitat, which may already be limited by natural specialization
• Loss of pollinators, dispersal agents, or other plant partners
• Collecting for horticulture, medicinal uses, or science
• Introduction of competitors, pathogens, and pests: usually not native, and therefore not having co-evolved with our native plants.