Heredity Evidence from Connecting Links
All organisms on earth possess a genetic Connecting Links Between groups
system that is based on the replication of a Virus living and
non-living organism
long, complex molecule called DNA. This
Euglena plants
mechanism allows for adaptation and (Protozoa) and animals
evolution over time, also distinguishing Balanoglossus invertebrates
characteristics of living things. (Chrodata) and chordates
Peripatus arthropods
(Anthropoda) and annelids
Neopilina annelids
(Mollusca) and molluscans
Protopterus fishes
(Lung fish) and amphibians
Chimaera cartilaginous
and bony fishes
THEORIES OF EVOLUTION
Lamarckism (Lamarckian inheritance)
Jean-Baptiste Lamarck was a French scientist 1. A characteristic which is used more and
who developed an alternative theory of more by an organism becomes bigger and
evolution in 1801 and 1809. His theory stronger, and one that is not used
involved two ideas: eventually disappears
2. Any feature of an organism that is
improved through use is passed to its
offspring.
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