Ecology Intro & Biosphere Exam Best Answers
2024-2025 With 100% Guaranteed Solutions
ecology
study of the interactions between organisms and their environment
"Environment" includes ____________ and ____________ factors.
biotic; abiotic
environmentalism
ecology and environmentalism are not the same; environmentalism includes social dimensions,
values, activism, etc. (broader)
Ecology focuses on hierarchy:
organism, population, community, ecosystem, landscapes, biosphere (really organized around
top 4)
habitat
specific environment where an organism lives (includes biotic and abiotic factors)
Biosphere is the _____________ level.
broadest
The global ecosystem is
sum of all the planet's ecosystems; all of life and where it lives.
Patterns in the distribution of life reflect
abiotic factors.
All organisms require an energy source
solar energy powers most ecosystems via photosynthesis
Water is essential to all life:
, aquatic organisms must balance solute concentration; terrestrial organisms must prevent drying
out
Temperature affects metabolism:
most life functions between 0 degrees Celsius and 45 degrees Celsius; most organisms require
specific range
The abiotic factors in a habitat may vary from
year to year, seasonally, or over the course of a day.
Organisms can respond:
behaviorally, anatomically, physiologically
What is acclimation?
term that refers to gradual, reversible, physiological adjustments in response to environmental
change (what something can tolerate throughout the year)
biome
a major terrestrial or aquatic life zone (characterized by vegetation type and the physical
environment)
Aquatic biomes
about 75% of Earth's surface; determined by salinity and other physical factors
Freshwater biomes
salt concentration <1%; lakes, streams, rivers, wetlands; <1% of Earth's surface; about 0.01% of
it's water; about 6% of all known species; drinking water, crop irrigation, sanitation, industry
2 broad groups of freshwater biomes:
1) Standing water: Lakes and Ponds
2) Flowing water: Rivers and Streams
Marine biomes
salt concentration is about 3%; oceans, intertidal zones, coral reefs
phytoplankton
microscopic algae and cyanobacteria that drift near the surface; regulated by nitrogen and
phosphorus
2024-2025 With 100% Guaranteed Solutions
ecology
study of the interactions between organisms and their environment
"Environment" includes ____________ and ____________ factors.
biotic; abiotic
environmentalism
ecology and environmentalism are not the same; environmentalism includes social dimensions,
values, activism, etc. (broader)
Ecology focuses on hierarchy:
organism, population, community, ecosystem, landscapes, biosphere (really organized around
top 4)
habitat
specific environment where an organism lives (includes biotic and abiotic factors)
Biosphere is the _____________ level.
broadest
The global ecosystem is
sum of all the planet's ecosystems; all of life and where it lives.
Patterns in the distribution of life reflect
abiotic factors.
All organisms require an energy source
solar energy powers most ecosystems via photosynthesis
Water is essential to all life:
, aquatic organisms must balance solute concentration; terrestrial organisms must prevent drying
out
Temperature affects metabolism:
most life functions between 0 degrees Celsius and 45 degrees Celsius; most organisms require
specific range
The abiotic factors in a habitat may vary from
year to year, seasonally, or over the course of a day.
Organisms can respond:
behaviorally, anatomically, physiologically
What is acclimation?
term that refers to gradual, reversible, physiological adjustments in response to environmental
change (what something can tolerate throughout the year)
biome
a major terrestrial or aquatic life zone (characterized by vegetation type and the physical
environment)
Aquatic biomes
about 75% of Earth's surface; determined by salinity and other physical factors
Freshwater biomes
salt concentration <1%; lakes, streams, rivers, wetlands; <1% of Earth's surface; about 0.01% of
it's water; about 6% of all known species; drinking water, crop irrigation, sanitation, industry
2 broad groups of freshwater biomes:
1) Standing water: Lakes and Ponds
2) Flowing water: Rivers and Streams
Marine biomes
salt concentration is about 3%; oceans, intertidal zones, coral reefs
phytoplankton
microscopic algae and cyanobacteria that drift near the surface; regulated by nitrogen and
phosphorus
