Biomes & Abiotic Factors
A biome is a large geographic region characterized by what two things?
Climate conditions and organisms
Which aquatic factor measures the amount of salt in water?
Salinity
What is the largest population an environment can sustainably support called?
carrying capacity
Energy flows through ecosystems from what primary source?
the sun
True or False: Matter cycles between organisms and the environment.
true
Which abiotic factor refers to the distance from the equator?
latitude
Which aquatic factor is needed for photosynthesis?
Light
Which is a biotic limiting factor: water, temperature, disease, or space?
disease
Which organisms use light energy to make organic molecules?
producers
True or False: Photosynthesis uses light energy.
true
Which abiotic factor is the movement and availability of water?
hydrology
Fish use what to extract dissolved oxygen from water?
Gills
True or False: Carrying capacity always stays the same.
false
Chemosynthesis uses what instead of sunlight?
chemical energy
True or False: Decomposers return nutrients to the environment.
true
Abiotic conditions determine what?
Which organisms can successfully live in an area
True or False: Marine ecosystems have low salt levels.
false
What type of factors include living organisms and can limit populations?
biotic factors
Aerobic respiration produces what energy-carrying molecule?
atp(Sugar)
True or False: Some energy is released as heat during energy transfers.
true
What does climate include?
Temperature and precipitation
True or False: Flexible stems are an adaptation of aquatic plants.
true
What term describes characteristics that help organisms survive in their environment?
adaptations
According to the First Law of Thermodynamics, energy cannot be what?
created or destroyed
What type of succession begins where there is little or no soil?
primary succession