Science Test Flashcards
the one he didnt teach us about
What does Biotic mean and what are some examples?
All living organisms/things in an ecosystem (plant, animal, fungi)
What does Abiotic mean and what are some examples?
non living things/organisms in an ecosystem (sunlight, water, soil)
What is Ecology?
Study on how living things interact with each other and their environment.
What are Ecosystems?
Communities of living things interacting with each other and their physical environment
What are the basic needs of living organisms?
- Water
- Energy
- Oxygen
- Suitable living conditions
- Interactions (Symbiosis)
What is Mutualism and some examples?
The relationship in which both species are mutually benefited (oxpecker)
What is Parasitism and some examples?
The relationship between two species in which one organism is benefited at the expense of the other
What is Commensalism and what are some examples?
Type of symbiotic relationship between different species of organisms which one species benefits from the relationship while the other is not harmed, but does not benefit from the relationship (ex. small birds and grazing herbivores)
What are Producers
Speicies that create their own food
What are Consumers?
An organism that feeds off of other organisms to maintain its energy
What are Decomposers?
Organisms that decompose leftover food to feed themselves
Why are producers, consumers, and decomposers important to an ecosystem?
they all work to create a balance
What are the three main cycles of ecosystems?
- nitrogen cycle
- water cycle
- carbon cycle
describe the nitrogen cycle
- Nitrogen fixation
- nitrification
- dentrifications
- decay
- putrefaction
describe the carbon cycle
the process that move barbon between plants, animals, and microbes and the atmosphere
describe the water cycle
Liquid water evaporates into water vapor, condenses to form clouds and precipitates back to earth in the form of rain or snow
what are Competition and Succession?
What is competition in regard to ecosystems and what do organisms compete for?
Competition will occur between organisms in an ecosystem when their niches overlap, they both try to use the same resource and the resource is in short supply.
Animals compete for food, water and space to live. Plants compete for light, water, minerals and root space.
What is the definition of a biome?
an area classified according to the species that live in that location.
Photosynthesis + Cellular Respiration: what is it and what is the process. – Word equations
What is Primary Succession?
Primary succession happens when a new patch of land is created or exposed for the first time
What is secondary succession?
when a climax community or intermediate community is impacted by a disturbance.
What is the difference between primary and secondary succession?
In primary succession, a newly exposed rock is colonized by living things for the first time. While, Secondary succession is when an area which occupied by living things is disturbed or disrupted.