homework questions #5 Flashcards
What are the 4 climatic factors influencing the growth of plants?
Light
Moisture
Temp.
Wind
What causes excessive drying by increasing evaporation from exposed surfaces?
Wind
What involved photoperiodism?
Light
Explain the results of photoperiodism w/ regard to plants?
More fluctuation in the photoperiod stimulates seasonal behavior such as flowering and leaf fall.
What are the benefits of wildfire to forests or grasslands?
helpful to seeding and sprouting of plants
What is a biome?
an large recognizable assemblage of plants and animals in functional interaction w/ its environment
What are the (10) major types of biomes?
- Desert
- Tropical Rainforest
- Tropical Deciduous Forest
- Tropical Savanna
- Tropical Shrub
- Mediterranean woodland and shrub
- Midlatitude Grassland
- Midlatitude Deciduous Forest
- Boreal Forest 10. Tundra
What is the diff. between evergreen and deciduous trees?
Evergreen: Sheds leaves on sporadic basis but always looks fully leaved
Deciduous: On an annual basis all leaves die and fall due to either dry or cold season
What is the diff. b/w Xerophytic and Hydrophytic plants?
Xerophytic: plants in dry areas
Hydrophytic: plants in wet areas
Describe the two types of root systems and the reason for each type.
Long taproots: long to penetrate deeply in search of water table
Myriad small roots: seek any moisture near surface over a broad area
Vertical zonation in vegetation patterns are largely due to the effects of elevation on what (2) things?
Temperature
Precipitation
What (3) biomes exist as a result of the tall mountain ranges in CA?
Subalpine Forest
Pinon Woodland
Sage Brush
Which biome has trees growing closely together w/ little sun on ground?
subalpine forest
Which biome has trees growing widely apart, drier than forests?
Pinon woodland
Which biome has leafy plants growing closely to the ground w/ little amt. of trees?
Sage brush
T/F S. CA is the only place in N. America w/ the biome Mediterranean Woodland Shrub.
T
Which climate characteristic is most closely associated with the Mediterranean Woodland Shrub?
Summer: dry, rainless
Winter: floods and rains
Which biome is dominated mostly by a dense growth of woody shrubs?
Broad-leafed Evergreens
What is the adaptation of the Broad-leafed Evergreens to the summer dry season?
small leaves w/ leathery texture or waxy coating to inhabit water loss
Which type of tree is the most significant genus in the N. American Mediterranean Woodland Shrub?
Oaks
In what (2) ways do oaks and other species inhabit water loss during the hot, dry summers?
Waxy coated leaves
Small leaves
T/F Summer is a virtually rainless season in mediterranean climates so summer fires are relatively common.
T
T/F Many plants are adapted to a rapid recovery after a wildfire has swept over an area.
T
T/F Germination and winter floods often follow summer fires.
T
