Bio Flashcards
Assimilation
Animals eat food to get nitrogen
Invasive species
No natural predator therefore they can eat many species and take over ecosystems
What is a decomposer
Organisms that absorb leftover or waste matter
What is algae
Plant like organisms found in ocean
The water cycle
- Evaporation.
- Condensation.
- Precipitation.
- transpiration.
- Runoff.
Carbon cycle
- Photosynthesis.
- Nutrition
- Animal respiration.
- Decomposition.
- Deposition.
- CO2 gas exchange.
- Human use.
- Burning fossil fuels.
Nitrogen cycle
- Atmospheric nitrogen.
- Assimilation.
- Ammonification
- Nitrification
What is variation when it comes evolution?
Within the species, there will be variation ex: size of giraffe, long or short neck
What is adaptation?
Adaptation refers to a trait or characteristic that enhances the ability of an organism to survive and reproduce in specific environment. These traits develop over generations to the process of evolution by natural selection.
Pioneer species
The pioneer species is the initial species to appear during succession
What is an invasive species?
Not native to environment and can be harmful
Primary consumer
The organisms that eat the producers
Secondary consumer
Organism that receive their energy from primary consumers by eating them
Tertiary consumers
Organisms that mainly eat other carnivores
Analogous structures
Structures which serve similar purposes that have evolved separately, a number of different times
Homologous structures
Features with the same structure but different functions
Mutualism
A symbiotic relationship in which both organisms benefit
Parasitism
A symbiotic relationship in which one organism benefits at the other cost of another
Commensalism
A symbiotic relationship in which one organism benefits, and the other receives, neither benefit nor harm
Why is carbon important?
All living things on our planet are full of carbon. It is a building block of life molecules.
Carbon dioxide is required for plants to do photosynthesis
Nitrogen fixation
Bacteria on plant roots or bacteria, the soil take nitrogen from the atmosphere and converted into ammonia
Nitrification
Nitrifying bacteria in the soil convert NH3/NH4 into into NO2 nitrites and NO3 nitrates which plants can use
Darwin’s theory
Darwin beliefs, species evolved overtime to adapt to their environment. Those with favorable traits would live to reproduce passing on the favorable trait.
Lamarck theory
Lamarck believed that a species could acquire a trait in their lifetime and pass it on to their offspring
Charles Darwin theory of natural selection
- overproduction.(more offspring are produced than can live.)
- struggle for existence.(limited resources not enough for all.)
- Variation(within the species there will be variation size, color)
- Survival of the fittest.(to live long enough to reproduce.)
- Origin of new species.
Why photosynthesis is important
Photosynthesis is important process not only because it is how plans make their food but also because it helps keep carbon dioxide out of the atmosphere
Denitrification
The process in which bacteria convert dead matter back into N2 in the atmosphere
Population size
Both natality and immigration occurred to increase the population size
Endangered species
A species that is close to extinction
Threatened species
Species that is not an immediate danger of extinction, but is at risk of low or declining numbers
Carrying capacity
The maximum number of species that can be supported by the ecosystem
Combustion
Carbon dioxide released to the atmosphere through burning a fossil fuel fuels
Emigration
When members of a population leave to a new area
Scavengers
Organisms that will eat mostly anything
Herbivore/primary consumer
Eats only plants
Biogeochemical cycles
The cycling of water, nitrogen, and oxygen that occurs on earth
What is produced during photosynthesis?
During photosynthesis glucose is produced and oxygen, gas is released into the atmosphere
Photosynthesis
Plants are producers take carbon dioxide from the atmosphere to use
