Card Set Information
A huge problem using insecticides to control insect pests is____.
that insects quickly develop resistance to chemicals
_____and______ are examples of higher plants that cause damage b/c they are hemiparasites (water parasites) or true parasites b/c they lack chlorophyll and depend on the host for all nourishment
______mouthparts may be sucking, chewing, or rasping-sucking.
____are simple, microscopic, multicellur animals. Typically containing 1000 or fewer cells. Most aren't pathogens but rather are_____.
A series of ____systems or belts of surface winds in each hemisphere determines the patterns of precipitation and vegetation.
The _____ _____or______ is the second largest biome on earth after the desert
A biome is a collection of ecosystems with similar_____.
climates, soils, and plant composition
At the equator, warm temperatures and high moisture result in_____, the most productive biome on earth
Between 40-50 degress latitude with 30+ inches of rainfall per year _____ ______ developes.
In a grassland _______ growth is limited by lack of water.
Level land is less likely to erode from water than sloping land—but can be more vulnerable to ________.
Soil, water, and fertility management are all components of_____ .
A ______________ is sometimes used in seedbed preparation because it is effective in breaking up soil crusts, reducing clod sizes, and destroying small weeds.
__________ are single celled, microscopic, prokaryotic, organisms classified by cell shapes.
Plant _________ require a wound in order to enter the plant cells; once in, they can move freely from cell to cell via the _______.
__________ controls are considered an environmental-friendly alternative to using pesticides
Weed _________ may privide information that increases our capacity to use biological mehtods to control weeds.
______ digest dead plant and animal matter at or below the soil surface.
Because of high growth rates in tropical rainforests, ________ are rapidly taken up by plants and rapidly ________ in the soil.
_____ results when resources are not available for another species.
At the equator, temperatures are _________ all year round and trade winds carry ________ off oceans resulting in high levels of ________.