Lesson 2 Flashcards
It is the study of the interactions between organisms and their environment.
Ecology
It provides the understanding of underlying environmental issues.
Ecology
It emphasizes energy flow and chemical cycling among various biotic and abiotic components.
Ecology
Ecology emphasizes ___________ and ___________among various biotic and abiotic components.
- energy flow
- chemical cycling
It is the interaction between biotic or living organisms and abiotic organisms or non-living organisms.
Environment
It means living organisms.
biotic
It means non-living organisms.
Abiotic
These are humans, animals, and plants.
biotic
These are the earth, sun, wind, and water.
abiotic
The abiotic factors in the environment can be classified as:
- Physical
- Chemical
Examples of this are energy, light, temperature, and physical habitat.
Physical
Examples of this are gases and nutrients.
Chemical
What are the life’s different level of organization?
- Organisms
- Species
- Population
- Community
- Ecosystem
- Biome
- Biosphere
These are group organisms resembling one another in appearance, behavior, and genetic make-up.
Species
These are group of individuals belonging to the same species.
Population
These are populations of different species interacting in a given area.
Community
These are communities and their physical environment considered together.
Ecosystem
This is a geographic area that has a particular climate and is home to a particular group of plants and animals that have adapted to that specific moment.
Biome
This is the global ecosystem, the sum of all earth’s ecosystems.
Biosphere
It comprises of a thin layer of the earth’s surface where life can exist.
Biosphere
What are the life’s different level of organization? (Starting from atoms)
- Atoms
- Molecules
- Cell
- Tissues
- Organs
- Organ Systems
- Multicellular Organisms
- Organisms
- Population
- Community
- Ecosystem
- Bioes
- Biosphere
If an action or policy has a suspected risk of causing harm to the environment, in the absence of scientific consesus that the action or policy is harmful, the burden of proof that it is not harmfull falls on those taking the action.
Precautionary Principle
According to the precautionary principle, humans need to be concerned with __________________.
how our actions affect the environment.
He is a leader among a generation of scientists-activist.
Barry Commoner
He is the greatest environmentalist of the 20th century.
Barry Commoner
Who said “no permanent environmental solutions is possible”?
Barry Commoner
He was best known for his Four Laws of Ecology.
Barry Commoner
What is outlined in the first chapter of “The Closing Circle”
- Everything is connected to everything else.
- Everything must go somewhere
- Nature knows best
- There is no such thing as free lunch.
What are the fields of ecology?
- Organismal Ecology
- Population Ecology
- Community Ecology
- Ecosystem Ecology
- Landscape Ecology
It studies how an organism’s morphology, physiology, and behavior meet the challenges posed by the environment.
Organismal Ecology
It studies the factors that affect how many individuals of a particular species can live in an area.
Population Ecology
It deals with the whole array of interacting species in a community.
Community Ecology
It emphasizes energy flow and chemical cycling among the various biotic and abiotic components. (fields of ecology)
Ecosystem Ecology
It deals with arrays of ecosystems and how they are arranged in a geographic region.
Landscape Ecology
It is the prevailing weather conditions in a particular area.
Climate
What is climate made of?
- Temperature
- Water
- Sunlight
- Wind
What are the factors that determine the global climatic patterns?
- Amount of Sunlight received
- Movement of Earth in space
- Air Circulation
- Wind Patterns
- Local Geographic Features
- Seasonality
Where is sunlight directly overhead?
Equator
Which place receives low angle of incoming sunlight?
North Pole (60 degrees N) and South Pole (60 degrees S)
When does the longest day or night happen in Earth?
During solstice
What months do solstice usually happens?
June and December
It is a month where there is equal time for day and night.
equinox
What months do equinox usually happens?
March and September
Climate of adjacent terrestrial environments is moderated by ____________.
large bodies of water
These affects the local temperature, rainfall and the amount of sunlight reaching an area.
Mountains
It is a narrow vertical zone of rapid temperature change.
Thermodine
They, in their physical and chemical environment, make up an ecosystem.
- plants
- animals
It is the study of ecosystems.
Ecology
Ecosystems exhibit a flow of both ____________ and _________.
energy and nutrients
What is the original energy source of nearly all ecosystems?
sun
What is the source of energy of the oceanic hydrothermal vent communities?
Energy from geothermal activity
It is the ecosystem’s ability to return to its original rate of change following a disturbance.
Ecosystem stability
It is the amount of perturbation that an ecosystem can absorb.
Resistance
What type of communities tend to be fairly resistant to pertubation?
Communities dominated by large, long-lived plants
It is partially based on which species are most sensitive to the particular disturbance.
Ecosystem resistance
True or False. Small changes in the populations of “top of the food chain”, predators, or critical plant types can’t have a substantial impact on the structure of the ecosystem.
False
It is an ongoing attempt to preserve the critical habitat for species that depend on old growth, such as the spotted owl and the arbled murmlet.
to limit the logging of old-growth forest in the Pacific Northwest
It is the rate at which the ecosystem recovers from pertubation.
Resilience
These are usually over populated with species that have rapid colonization and growth rates.
Resilient ecosystems
They grow very quickly after the storm flow abates, so the intervertebrates do not starve.
Algae
These are marine ecosystems that are extremely fragile, not resilient and not resistant to environmental disturbances.
deep oceanic ecosystems
In addition, to the direct effects of toxic materials like metals, pesticides, and synthetic organic compounds, one of the most serious effects of pollutants on inland waters is _________________.
depletion of dissolved oxygen
All higher forms of aquatic life exist only in the presence of_______ and most desirable microbiologic life also requires it.
oxygen
If the water becomes like this, the entire ecology changes and the water becomes unpleasant and safe.
anaerobic
The dissolved oxygen concentration in waterways and the effect of pollutants are closely related to the concept of decomposition and biodegradation, part of the ___________________ that sustains life.
total energy transfer system
These refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and maintain homeostasis.
Organisms
It is any theory that aims to classify species.
Species concept
Enumerate the four species concept.
- Biological Species Concept
- Morphological Species Concept
- Ecological Species Concept
- Phylogenetic Species Concept
A species is a group of populations whose members have the potential to interbreed in nature and produce viable, fertile offspring.
Biological Species Concept
This definition of species in terms of measurable anatomical criteria.
Morphological Species Concept
This definition of species in terms of ecological niche, the sum of how members of the species interact with the non-living and living parts of their environment.
Ecological Species Concept
This definition of species as the smallest group of individuals that share a common ancestor.
Phylogenetic Species Concept
What are the two types of aquatic ecosystems?
- Marine Ecosystems
- Freshwater Ecosystems
This particular ecosystem is the largest aquatic ecosystem and covers over 70% of the earth’s total surface.
Marine Ecosystems
This ecosystem is relatively more concentrated in terms of salinity.
Marine Ecosystems
The body of aquatic organisms is well-adjusted to saline water, and they may find it challenging to survive in freshwater.
Marine Ecosystems
Ecosystems inside Marine Ecosystems
- Ocean Ecosystem
- Estuaries
- Coral Reefs
- Coastal Ecosystem
It is the meeting point of a sea and rivers.
Estuaries
It is made up of corals that form reefs.
Coral Reefs
It is formed when land and water meet.
Coastal Ecosystem
This covers less than 1% of the earth’s surface and is broadly divided into – wetlands, lentic and lotic ecosystems.
Freshwater ecosystems
Ecosystems inside the Freshwater Ecosystems
- Swamps and Wetlands
- Lentic Ecosystems
- Lotic Ecosystems
These are marshy areas that are often covered in water and harbor a variety of flora and fauna
Swamps and Wetlands
It includes ponds and lakes and is a home to both floating and rooted plants, algae, and invertebrates
Lentic Ecosystems
These are characterized by rapid flowing water moving in one direction. Examples include rivers, streams, brooks and springs.
Lotic Ecosystems