This 31-slide powerpoint presentation covers 'Topic 5.2 - Natural Selection' in the 2016 IB Biology curriculum. Each slide includes the specific learning objective as well as key vocabulary that students should note. The topic has been divided into three sections:
A - Taxonomy & Naming
B - Natural Classification
C - Recognition Features
The presentation itself contains minimal information as it is intended to be used with teacher guidance. They are also formatted to be visually pleasing and to print well for handouts or revision. Please see the preview file for an idea of the slide aesthetic and level of detail.
As always, please let me know if you have any suggestions for improvements. These are always a work in progress!
U1: The binomial system of names for species is universal among biologists and has been agreed and developed at a series of congresses.
U2: When species are discovered they are given scientific names using the binomial system.
U3: Taxonomists classify species using a hierarchy of taxa.
U4: All organisms are classified into three domains.
U5: The principal taxa for classifying eukaryotes are kingdom, phylum, class, order, family, genus and species.
U6: In a natural classification, the genus and accompanying higher taxa consist of all the species that have evolved from one common ancestral species.
U7: Taxonomists sometimes reclassify groups of species when new evidence shows that a previous taxon contains species that have evolved from different ancestral species.
U8: Natural classifications help in identification of species and allow the prediction of characteristics shared by species within a group.
A1: Classification of one plant and one animal species from domain to species level.
A2: Recognition features of bryophyta, filicinophyta, coniferophyta and angiospermophyta.Application: Recognition features of porifera, cnidaria, platylhelmintha, annelida, mollusca, arthropoda and chordata.
A3: Recognition of features of birds, mammals, amphibians, reptiles and fish.
S1: Construction of dichotomous keys for use in identifying specimens.