BIOL 1002 Chapter : Chapter 44
Document Summary
Tree large woody plant with an elevated crown. Usually greater than 20" with 1-3 main trunks. Evergreen keeps leaves all year long: deciduous drops leaves at end of growing season. Shrub a low woody plant that is usually less than 20" tall with several slender trunks. Invasive a species that invades natural communities, displaces native species and alters ecological processes: parasitic plant a plant that obtains water and nutrients from another plant (host) Epiphyte a plant that grows upon epi another plant phyte without deriving direct nutrition from the host plant: spanish moss. Plant reproduction and development- chapter 44: asexual reproduction is rare in vertebrate species, but it is possible, many plant species can reproduce both sexually and asexually. Sexual offspring combine the genes from two parents and are genetically different from their parents: advantages to sexual reproduction, beneficial in changing environments. Genetic variation produces new traits in offspring: reduces parasitism.
