Function And Evolution Flashcards
What will influence who survives in order to breed
Phenotypic variation
What does intraspecific mean
Members of the same species compete for limited resources
What does interspecific mean
Members of different species compete for limited resources
What does fecundity mean
The ability to produce a lot of offspring
What is a lek
A type of territory held by males of certain species and you solely as a communal mating ground
What does symbiosis mean
Interaction between two organisms of different species to their mutual benefit
What is an example of symbiosis in nature
Clownfish and anemones
What is epistasis?
A phenomenon whereby the expression of one gene depends upon the presence of other genes around it.
What is a phenetic characteristic?
Classifying animals based on how they look
What is an anapsid?
A reptile of a group characterised by the lack of temporal openings in the skull (just one hole)
What is an example of an anapsid?
Turtle
What is a diapsid?
An animal with two holes in each side of their skulls
What are some examples of diapsids?
Crocodile, snake, parrot, lizard
What is divergent evolution?
Evolution of different features from a common ancestor
What is convergent evolution?
Evolution of similar features in unrelated species due to similar environmental pressures (e.g. hummingbird and sunbird)
What is parsimony?
To use the least number of changes
What is sensory exploitation?
Stimulating physiological, neurological and psychological biases previously evolved in a different context
What is adaptive co-evolution?
Coordinated change between two or more elements of ecology/morphology/behaviour
What is morphology?
size and shape
What do apes breeding strategy correlate with?
The size of their reproductive organs (chimpanzee has bigger and polygynous. Gorilla is smaller and fewer matings)
How has evolution changed behaviour of the tiger?
They have learnt to like water as they live int he rain forest and need the water in order to cool down
what is sensory exploitation?
“Stimulating physiological, neurological and psychological biases previously evolved in a different context.”
