Eoc Review Flashcards
Organisms inability to respond to environment results in
Extinction
Microorganisms
Play critical roles in maintenance and disruption of the health of both individuals and entire ecosystems
Beneficial bacteria roles
Put nutrients back into soil for plants, nitrogen fixation, medicines and vitamins
Ecological succession
Building or rebuilding a community over time
Ecosystem
Mix of all biotic and abiotic things conditions and interactions in an area
Species
Organisms that have similar characteristics and can breed with each other
Population
Organisms of the same species that live in a particular area and make up a breeding group
Toxins grow going up a food pyramid
Biomagnification
Biotic potential
A populations growth rate under ideal conditions
Natural selection
Organisms with certain traits survive and reproduce
Charles darwin
Proposed natural selection
Genetic drift
Change in a gene pool caused by chance that decrease genetic variation
Gene flow
Changes in a gene pool caused by migration( immigration increases genetic variation and emigration decreases genetic variation
Mutation
Change in gene pool caused by a change in the DNA sequence of a gamete that increases genetic variation
Biogeography
Species that live in the same area are more closely related
Anatomical homology
Structural similarities with different functions
Molecular homology
Chromosomal similarities
Developmental homology
Embryonic similarities
Bacteria domain
Eubacteria Prokaryotes Cell walls with peptidoglycan Unicellular Auto or heterotrophs
Archae domain
Archaebacteria Prokaryotes Cell walls without peptidoglycan Unicellular Auto or heterotrophs
Protista
Eukaryotes
Cell walls
Unicellular
Auto or heterotrophs
Fungi
Eukaryotes
Cell walls of chitin
Multicellular
Heterotrophs
Plantae
Eukaryotes
Cell walls of cellulose and chloroplasts
Multicellular
Autotrophs
Animalia
Eukaryotes
No cell wall
Multicellular
Heterotrophs
Chromatin
Lon fibers stored in the nucleus when not dividing
Chromatid
Chromatin that have been twisted even more making the DNA dense and able to be seen through a microscope
Chromosome
Two sister chromatids bound together
Carbon cycle
Exchange of carbon from plants to animals through photosynthesis cellular respiration and deforestation
Phosphorus cycle
Long: phosphorus in ground weathers in rocks and becomes available for plants
Short: animals eat plants with phosphorus than poop
Nitrogen cycle
- requires soil bacteria
- nitrogen in atmosphere is unusable for plants
- Lightning fixes nitrogen
Biosphere
Earth
Biomes
Rainforest desert etc
Ecosystem
Biotic and abiotic factors
Community
Food web
Population
All of one kind of animal
Xylem
Transports h2o and minerals
Phloem
Transports sugars
Pistil
Stigma style ovary and ovules
Stamen
Anther and filament
Isotonic
Cell stays the same size
Hypotonic
Less water in cell so cell expands and could possible burst
Hypertonic
More water in cell so cell shrinks
Why do plants wilt
Hypertonic cells caused by overwatering
Centrioles
Attach to chromosomes during cell division
