Question | Answer |
Stimulus | Anything that causes a reaction in a body |
Tropism | Plant growth in response to a stimulus |
Phototropism | A change in direction of plant growth that is caused by light |
Gravitropism | A change in the direction of plant growth that is caused by gravity |
Negative Gravitropism | Found in the shoot tips and grows away from the center of the Earth |
Positive Gravitropism | Found in the roots and grow toward the center of the Earth |
Annuals | Plants whose life cycle is completed in one growing season (Ex: Pansies) |
Biennials | Plants that require 2 growing seasons to complete their life cycle (Ex: Carrots) |
Perennials | Plants that live year after year for more than 2 years (Ex: Trees, strawberries) |
Short-Day plants | Plants that flower in the fall/winter when nights are longer (Ex: Poinsettia, Christmas Cactus) |
Long-Day plants | Plants that flower in the spring/summer when nights are short (Ex: Roses, trees) |
Evergreen | Some leaves are always present on the tree. Leaves are adapted and are usually covered with a thick cuticle |
Deciduous | Trees that loose all of their leaves around the same time of each year |
Rhizoid | Root like structures that hold non-vascular plants in place and help the plants get water and nutrients |
Rhizome | Underground stem that produces leaves, shoots, and roots. Anchors the plant in place |
Fiddlehead | Newly produced, tightly coiled leaves of a fern produced by the rhizome. They are sporophytes |