Environmental Pressures
Pressures created by non-living components of the environment
What is, Abiotic pressure?
The influence of environmental pressures on allele frequency
What is Natural Selection
Phenotypes which provide an individual an advantage over another
What is a high Adaptive Value?
The age of the dinosours
What is the Jurassic Period?
The large supercontinent which split into Laurasia and Gondwanaland
What is Pangea
A particular range of conditions in which an organism can live
What is Tolerance?
The combination of alleles in an organism
What is genotype?
Evolution of similar features in unrelated groups of organisms
What is Convergent Evolution?
Layered sequences of different rocks
What is Strata
An invasive amphibian introduced to Australia from Hawaii
What is the Cane Toad?
A species that plays a critical role in maintaining ecosystem structure
What is a keystone species?
Act as a water retention layer to prevent diffusion of water
What is thick and waxy cuticles
The transfer of genes or alleles between populations
What is Gene Flow?
What is Dentition?
A single species adapting to the requirements of several different environments
What is adaptive radiation?
Selection aimed at increasing a desired trait.
What is Artificial Selection?
A physical adaptation in which light is produced to frighten predators or attract prey
What is, Bioluminescence?
Spatial separation which prevents subpopulations from interbreeding
What is allopatric speciation?
Species that exert selection pressures on on another
What is coevolution?
Egg-laying mammals
What is a monotreme?
Affected by Four processes:
natality
mortality
immigration
emigration
What is Population growth?
Trees that shed their leaves in a process called abbscission
What is deciduous?
Selection acting to maintain a desired trait, once adapted to the environment
What is punctuated equilibrium?
A remnant structure or organ that may have been used by ancestral species
What is a Vestigial Structure?
The imitation of structures found in nature to develop new materials or products
What is Biomimicry?