Chapter 3 and 4 Flashcards
The evaporation of water from internal surfaces of leaves, stems. and other living parts of a plant is called
transpiration
You notice mayfly larvae trying to emerge from a stream slowed down when they reach the surface. why might this be?
because of the surface tension of the water
The depth of thermocline is directly influenced by all of the following
wave action, wind speed and input of solar radiation
What has the purest form of water
clouds
In a stream that flows over limestone you would predict there would be higher
solute concentrations
The primary ions that contribute to the salinity of ocean waters are
sodium and chloride
aquatic organisms are unable to tolerate low pH conditions mainly because acidic waters contain high concentrations of toxic
aluminum
Tides are strongest when the
Earth, moon, and sun are in line
How does an increased atmospheric CO2 concentration result n increased ocean acidity
CO2 reacts with water to form H2CO3
A waxy layer coating the aerial parts of most plants, such as stems and leaves, which reduces water loss is referred to as the
cuticle
what are some challenges faced by a terrestrial plant
desiccation. variability in air temperature and cells and tissues to maintain structure
Light availability within a forest is lowest in the
ground layer
Leaching is
the movement of solutes through soil
Soil particles are classified on the basis of
size
When the amount of water in soil exceeds what the pore can hold, the soil is
saturated
