Zoology: An Evolutionary Perspective Flashcards
character setting / pattern of survival and reproduction of an animal or organism
Life History
all animals share a common ____ & _____
- evolutionary past
- evolutionary forces
basis for the classification of animals into a hierarchy system
Evolutionary relationships
what does zoologists must understand if they are to understand how an animal originated
evolutionary processes
change in populations of an organism over time
Organic Evolution
source of animal diversity and it explains family relationships within animal groups
Organic Evolution
who explained evolutionary change?
Charles Darwin in 1859
three (3) species of Cichlids in Africa
- Cynotilapia afra
- Cyphontilapia fontosa
- Haplochromis sensu lato
origin of cynotilapia afra
Lake Malawi
origin of cyphontilapia fontosa
Lake Tanganyika
origin of Haplochromis sensu lato
Lake Victoria
feeding patterns of Eretmodus
algae scrapers
feeding patterns of tanganicodus
insect pickers
feeding patterns of perissodus
scale eaters
two (2) pairs of jaws of cichlids:
- Mouth jaws
- Throat jaws
jaw used for scraping / nipping
Mouth jaw
jaw used for crushing / macerating food before swallowing
Throat jaw
animal evolution and classification relationships are best explained in terms of:
- Evolution
- Genetic Material (DNA)
- Scientific Name
explains why animals appear and function as they do, but it also explains family relationships within animal kingdom
Evolution
important to consider in understanding animal classification and animal evolution
Genetic Material (DNA)
groups of individuals are more _____ if they share more of their genetic material with each other than with individuals in other groups
closely related
binomial nomenclature;
describes each kind of organism
Scientific Name
who developed the Scientific Name?
Carl Linnaeus
2 parts of binomial nomenclature:
- Genus
- Species
