Ch 1 - Animal Biology Specializations to study animals by taxa Entomology Herpetology Ichthyology Mammalogy Ornithology Parasitology

Ch 1 - Animal Biology Specializations to study animals...

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Animal Biology Specializations to study animals by taxa: Entomology Herpetology Ichthyology Mammalogy Ornithology Parasitology Specializations by form of function: Anatomy- Cytology- Histology- Embryology- Genetics- Molecular Biology- Physiology- Evolution-
Ecology- Behavior- Zoology is the study of animal -observation -question -hypothesis -test -results and analyses -conclusion -publication Geologic Time Scale: Cenozoic- Mesozoic- Paleozoic- Precambrian-
Fauna of Burgess Shale: - Cambrian period, British Columbia, Canada - Preservation of soft parts in fossils Importance in Zoology: - Understand evolution - Understand major differences among groups - Understand their ecology Position of animals in the three domains: Bacteria- Archaea- Eucarya- How many species are in the world- No Clear Answer Species Richness: Around 1,250,300 animals
Animal Kingdom (34 Phyla?): Biodiversity Hotspots: Relatively small areas with high species richness and many endemic species Evolution: A process of change through time in the genetically determined characteristics of organisms being passed on to successive generations - Microevolution- Change of allele frequencies over time. Operates at the population level within species - Macroevolution- Large scale changes in allele frequencies. Operates at the species level and higher levels of taxonomic organization (taxonomic groups) Genotype: All genes in an individual - DNA- A molecule composed of two strands of nucleotides in a shape known as a double helix - Chromosome- Molecule of DNA wrapped around proteins - Gene- portion of DNA whose sequence of nucleotides codes for a protein (trait) - Allele- Version or alternative form of a gene

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