1.1/1.2
What are the living components of an ecosystem called?
Biotic factors — the living components of an ecosystem.
What is a population?
A population is a group of individuals of the same species living in the same area.
what is the difference between climate and weather?
Weather refers to the short-term, day-to-day atmospheric conditions in a specific local area, while climate represents the long-term average of those weather patterns over a period of 30 years or more.
what is an omnivore?
an organism whose diet consists of both plants and meat.
what is groundwater?
Groundwater is water stored beneath Earth’s surface in soil and rock.
What is biodiversity?
Biodiversity — the variety of life in an ecosystem or on Earth.
define the term sustainability?
prevents the depletion or degradation?
what is a biome?
large-scale ecosystems that are typically defined by climate and the dominant vegetation type.
intra-specific vs. inter-specific
intra-specific: between individuals of the same species
inter-specific: between individuals of different species
what is a limiting factor?
anything that may slow population growth, or constrain population size.
What is Transpiration?
The process by which water vapor moves through and out of a plant.
State the layers of the atmosphere in order from closest to farthest from the earth.
Troposphere, Stratosphere, Mesosphere, Thermosphere.
describe abiotic and biotic factors.
Biotic: living organisms.
Abiotic: non-living things that influence an ecosystem.
what is biomass?
the total quantity or weight of organic material in an ecosystem, or plant material used in an ecosystem.
what would happen if a primary producer is removed from its food web?
it triggers a catastrophic bottom-up trophic cascade that can cause the entire ecosystem to collapse.
Biodiversity — the variety of life in an ecosystem or on Earth.
Greater biodiversity makes ecosystems more resilient because there are more species and genetic variations that can help an ecosystem withstand environmental changes.
Describe the location and role of the ozone layer.
The ozone layer is in the stratosphere and it absorbs harmful UV radiation from the sun.
What is an ecological niche?
The role and position that a species fills in an ecosystem, including the conditions and feeding needs necessary for the survival of the species.
name all the trophic levels in order from top to bottom.
tertiery consumers, secondary consumers, primary consumers, producers.
which part of a plant is responsible for photosynthesis and the absorption of light?
chlorophyll.
Explain how habitat loss can reduce biodiversity and affect ecosystem stability.
Habitat loss destroys or fragments living spaces, reducing populations and species diversity and potentially disrupting ecosystem functions.
Describe the natural greenhouse effect.
A natural process that causes the warming of the earth's surface and the surrounding atmosphere.
Why are organisms at higher trophic levels often more affected by pollutants?
Higher-level consumers can accumulate greater concentrations of persistent pollutants because they consume many contaminated organisms.
describe what is a carbon sink and a carbon store.
A carbon store is a natural or artificial feature that holds and pools carbon for a period of time, while a carbon sink is a feature that actively absorbs more carbon than it releases, pulling it out of the atmosphere.
what is the chemical formula for photosyinthesis?
CO2+H2O->C6H12O6+O2