Adaption Flashcards
Behavioural
things an organism does to survive ex. Playing dead
Physiological
permit organisms to perform special functions ex. Hibernation
Structural
physical features of an organism that help them to adapt. Ex. webbed feet
Variation
structural, functional or physiological differences between individuals. It is important to note that not all variations become adaptations.
Pepper Moths
During the industrial revolution many factories were being built and cars started to come into play which caused lots of smog and pollution. This made the white moths stand out and black ones blend in. The white moths were being attacked leaving more black moths left to reproduce.
Mutation
permanent changes in the DNA of an organism. Mutations are the only source of new genetic variation.
Selective advantage
a genetic mutation that improves an organism’s chance of survival in a changing environment, increases its chance of reproduction. Ex. Bacterial mutation which makes them resistant to antibiotics