Unit 1 Flashcards
HOMEOSTASIS
Maintaining a set of conditions in a cell/organism to remain stable and separate from external environment
“Life” is a _______
gradation
Homeostasis requires energy
ENERGY comes from ___________ (chemical reactions using PROTEINS)
METABOLISM
Different proteins = different body conditions = different environment
Energy is earned by…
Photosynthesis or eating things that photosynthesize
Biodiversity…
The variety of life forms in a particular area
3 Levels of Biodiversity:
Genetic, Species, and Ecosystem diversity
Genetic diversity…
Variety of traits among individuals of a species
Species diversity…
Variety of species within a habitat)
Ecosystem diversity…
Variety of habitats within an area
Extinction
Decline in Biodiversity
Holocene extinction
The 6th Extinction that is currently happening and been happening for the last 100,000 years
A Species is…
A group of organisms capable of breeding in nature and producing viable & fertile offspring
Reproduction…
common collection of traits (genes)
* Genes mix within species
* Genes don’t mix between species
Classification…
Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species
Scientific name…
Genus + species = Scientific Name
capitalized lowercase italicized
