Three characteristics of mites, ticks and spiders - Answer -Eight jointed legs
Two body regions
Lack wings
List four types of vertebrate animals that can be pests - Answer -Fish
Reptiles
Amphibians
Birds
List types of living organisms that cause plant diseases - Answer -Fungi
Bacteria
Viruses
Nematodes
List three main ways a plant responds to infection by a plant disease agent - Answer -Overdevelopment
of tissue
Underdevelopment of tissue
Death of tissue
Define weeds - Answer -Weeds are plants growing where thay are not wanted or in a way that is not
desireable
, Characteristics of herbaceous grasses - Answer -One leaf as the emerge
Leaves narrow and upright; veins parallel
Fibrous root system
Growing point sheathed and under soil surface
Growing point gradually moves above soil as plant matures
Chracteristics of herbaceous broadleaves - Answer -Two leaves as they emerge
Leaves broad with net-like veins
Exposed growing points at end of each stem
Perennial broadleaved plant may have growing points on roots and stems below soil
Chracteristics of woody plants - Answer -brush and shrubs having several stems and less that 10 feet tall
Trees - single stem and greater than 10 feet tall
Annuals - Answer -complete life cycle in less than 12 months
Explain the developmental stages of plants - Answer -Seedkubg - small with seed leaves present
Vegetative rapid growth of stems, roots, and foliage. Water and nutrient uptake rapid
Seed production - little or no growth; produces fruit. Water and nutrient uptake and movement slow
and directed to reproductive parts
Maturity - little or no growthe. Movement of water and nutrients slow.
Biennials - Answer -complete life cycle in 2 years
Perennials - Answer -live more than 2 years; ma live indefinitely
Winter vs. Summer Annuals - Answer -Winter annuals germinate in the fall, examples: cheat chickweed,
henbit, little barley, annual bluegrass and wild mustard.
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