Abeka Biology - Chapter 1
Terms
undefined, object
copy deck
- Biology
- The study of life
- Organisms
- Living things
- habitat
- regions where particular organisms normally live
- botany
- the study of plants
- zoology
- the study of animals
- Human antomy and physiology
- The study of the physical structure and function of the human body
- producers
- green plants
- Consumers
- Animals which eat the plants
- Parts of a plant
- Flowers, leaves, stems, roots,
- Woody plants
- Plants that live many years to develop a large amount of wood
- Herbaceous [hûr·ba’shus] plants or herbs
- Nonwoody plants
- Vine
- A long thin stem that grows along the ground or has tendrils that twine around a support. can be either woody or herbaceous
- Vegetative reproduction
- Plant reproduction without seeds
- Taproot system
- Where the main or primary root grows straight down and remains larger than the secondary roots that branch off from it
- Fibrous root system
- Where the primary root remains small and many slender secondary roots grow from it in all directions
- Parts of a leaf
- Green blade, stalk or petiole that attaches the blade to the plant stem, large vein or midrib that runs down the center of the blade
- Three basic leaf shapes
- Broad, flat leaves (rose bush, dandelion, or maple tree); long, narrow leaves (grasses, lilies, onions and palms); needlelike or scalelike leaves (pines, firs, cedars, and other cone-bearing trees and shrubs)
- Flowering seed plants or Angiosperms
- Plants whose flowers produce seeds that are covered by fruit
- Annual plants
- A plant which develops from a seed and produces new seeds in a single growing season
- Biennial plants
- Plants that take two years to complete their life cycles
- Perennial plants
- Plants that live from year to year and bloom each season
- The nitrogen cycle
- The movement of nitrogen from the air, into the soil, and back into the air
- Monocots
- plants that have only one cotyledon, long and narrow leaves with a parallel vein pattern and a fibrous root system
- Dicots
- Plants with two cotyledons per seed, flower parts arranged in groups of four or five, broad flat leaves with a branching vein pattern, and a taproot system
- Graminoids [gram’i·noidz’]
- Grasses and grasslike plants
- Stolon
- A creeping stem that crows above the ground
- Broadleaf trees
- Trees that have broad flat leaves and almost always are flowering seed plants
- Deciduous trees
- Trees that lose their leaves during the fall and are bare all winter
- Evergreen trees
- Trees that retain their leaves all year long
- The leaves of a tree form a ______
- Crown