Module 3 Flashcards
Levels of an ecosystem (6)
Individuals - organism
Population - group of same
Community - group of different species that live together
Ecosystem - communities joining
Biome - groupings over large areas
Biosphere - largest complex ecosystem
Examples of plant physiological adaptations (2)
frost tolerance
Salinity tolerance
Examples of animal physiological adaptations (3)
Camouflage
Evaporative cooling
Deep diving
Examples of behavioural plant adaptations (2)
Tropism (growth in response to environmental factors)
Nastic movement (movement of plant tissue in response to environmental stimuli)
Examples of behavioural animal adaptations (3)
Seeking shelter
Evaporative cooling
Migration
Theory of natural selection (3)
Survival of the fittest
Doesn’t always become more complex
Caters for the selective pressures
Types of evolution (4)
Coevolution - both receive environmental pressures and evolve together
Parallel - similar features from similar environments
Divergent - common ancestor
Convergent - unrelated species with similar environment evolving
Prezygotic isolating mechanisms (6)
geographical
ecological
temporal - reproductive times don’t overlap
behavioural
structural
Gamete
Adaptive radiation (1)
Rapid diversion from one ancestor
Methods of dating (2)
Relative - uses other known data from rocks
Absolute - radiometirc, thermoluminescence
Types of fossils (4)
Impression
Mineralised/pertified
Trace
Mummified
Comparative anatomy (2)
Homologous - signs of common ancestor
Analogous - similar pressures that evolved to have similar functions but not related (bird and butterfly)
Comparative embryology (1)
compares different embryos
