Section 1
This type of symbiotic relationship occurs when both organisms benefit, such as a bee pollinating a flower.
What is mutualism?
These organisms are the "starting point" of almost every food chain because they can make their own food through photosynthesis.
What are producers?
This is the first species that appears in an area with no living organisms.
What is a pioneer species?
Human action can have these two types of consequences - one that we planned for an one that we didn't expect.
What are intended and unintended consequences?
True or False: A rotting log can be considered an entire ecosystem.
True! Biotic organisms are interacting with abiotic factors.
The non-living parts of an ecosystem, such as rocks, water, and sunlight.
What are abiotic factors?
The percentage of energy that is typically passed from one level of a food chain to the next.
What is 10%?
When two or more organisms try to use the same limited resource, such as food or space.
What is competition?
This measurement of the amount of materials and energy each person uses every day is higher than what the Earth can naturally sustain.
What is ecological footprint?
Consumers that don't usually kill for their own food.
What are scavengers?
All the basic needs all living things need to survive.
What are Water, Food/Energy, Oxygen, Suitable living conditions?
A consumer, like a bear eating berries and salmon, that would eat both plant and animal matter.
What is an omnivore?
Like the zebra mussels in the Great Lakes, this is the introduction of a species that is not native to an area and often causes harm to the existing ecosystem.
What is bioinvasion?
This term describes a species that has disappeared from a certain area, like the grizzly bears from the plains.
What is extirpated?
food (glucose) + oxygen → carbon dioxide + water + energy
What is cellular respiration?
Unlike a common "dump," which can leak dangerous chemicals into local water systems, this more advanced facility uses a clay liner and a system of pipes to ensure that liquid waste cannot escape into the environment.
What is a sanitary landfill?
These organisms act as a "bridge" between biotic and abiotic factors by breaking down dead matter and returning nutrients to the soil.
What are decomposers?
This occurs in an area where an existing community has been destroyed by a disturbance, such as a forest fire.
What is secondary succession?
We talked about this pesticide originally targeting mosquitos, but it moved through the food chain and affected the eggshells of predatory birds.
What is DDT?
If a herbivore population suddenly exploded in size, this group of organisms would likely be the first to decrease.
What are producers?
A group of individuals of the same species living together in the same area.
What is a population?
These are the three stages in the water cycles.
What is evaporation, condensation, and precipitation?
A square area used to sample and count populations in an environment; it can be used to estimate the distribution of a species.
What is a quadrat?
These three alliterative words are ways to help your environmental impact.
What is reduce, reuse, recycle?