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Life Science 2
Stack #121357
| Vocabulary Term | Definition |
|---|---|
| Fossil Record | this gives evidence of current life forms are related to older ones, evolving over time |
| Vestigal Structures | these support the view that a common ancestry exists among members with similar bodily structures |
| Similarities in Embryo Development | most vertebrates have a similar appearance, suggesting that they had a common origin |
| Genetic Drift | random events affect the gene pool of small populations |
| Emigration/ Immigration | movement of organisms out of or into a group |
| Mating | individuals with certain traits are picked more often as mates, affecting which genes are passed on |
| Speciation | proces that leads to the creation of a new species |
| Adaptive Radiation | species diversity as they adapt in different ways |
| Kingdom | the highest category in the most common classification system |
| Phylum | organisms are grouped based on similarities in body plan and organization |
| Species | the fundamental unit in the classification of organisms, groups of one type of living organism |
| Abiotic Components | the non-living components of an ecosystem, such as temperature, sunlight, water, and minerals |
| Biotic Components | the living organisms of an ecosystem |
| Terrestrial Ecosystems | ecosystems on land, such as deserts, forests, and grasslands |
| Aquatic Ecosystems | ecosystems in water, such as oceans, lakes, and rivers |
| Community | organisms of different species found in a single ecosystem |
| Population | all of the organisms of the same species in a particular ecosystem |
| Predation | when one organism kills another organism for food |
| Parasitism | when a parasite feeds on another organism, known as a host |
| Competition | when two or more species in an ecosystem share similar traits and require the same resources |
| Mutalism | when a cooperative relationship exists in which two or more species mutually benefit |
| Commensalism | occurs in a relationship where one species benefits without doing any harm to the other species |
| Autotrophs | producers that make their own food, the capture the sun's energy, turning it into carbohydrates through photosynthesis |
| Heterotrophs | organisms unable to make their own food that need to consume others or their wastes for energy |
| Herbivores | organisms that eat plants or phytoplankton |
| Carnivores | organisms that eat other animals |
| Omnivores | organisms that eat both plants and animals |
| Decomposers | organisms that break down other organisms and wastes into organic molecules |
Created by:
jgrimmett
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