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- From Organisms to Ecosystems
- University of California - Irvine
- Verified Notes
Browse the full collection of course materials, past exams, study guides and class notes for BIO SCI 94 - From Organisms to Ecosystems at University of California - Irvine …
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Brad Hughes
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Class Notes
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BIO SCI 94 Lecture Notes - Lecture 5: Genetic Drift, Allele Frequency, Genotype Frequency
Ecological selection-prefer traits which help animal survive. Different selections may act on an animal at same time which may favor the same traits. G
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BIO SCI 94 Lecture 6: Speciation
Speciation- splitting event generating new species from single ancestor. Biological species concept, different species reproductively isolated no gene
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BIO SCI 94 Lecture Notes - Lecture 8: Phylogenetic Tree, Synapomorphy, Natural Selection
Over large periods of time, nature of life on earth has experienced many changes. Two analytical tools to reconstruct history of life: Ancestral trait-
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BIO SCI 94 Lecture Notes - Lecture 9: Phanerozoic, Adaptive Radiation, Mesozoic
Earth"s history divided into eons, eras, and periods. Precambrian-earth"s formation to start of most animals groups 542 millions years ago. Divided int
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BIO SCI 94 Lecture 10: Ch. 29 Bacteria and Archaea Part 1
Bacteria, archaea-2 largest branches on tree of life. Members of bacteria/archaea nearly all unicellular, all are prokaryotic. Type of molecules which
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BIO SCI 94 Lecture 12: Protists Part 1
Eukaryotes- size of single celled organism to sequoia trees and blue whales. Protists- organisms include eukaryotes except land plants, fungi, animals.
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BIO SCI 94 Lecture 13: Protist Part 2
Bacteria and archaea have many ways to get food. Evolution of novel methods for finding food important in diversification of protists. Protists ingest
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BIO SCI 94 Lecture 14: Green Algae and Land Protists Part 1
Green algae-important photosynthetic organism in freshwater habitats. Green algae considered protists, why we study them with land plants: Aquatic terr
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BIO SCI 94 Lecture 15: Green Algae and Land Protist Part 2
Coal deposits found in sediments 359-299 mya. Rocks 416-359 mya, fossils found from major plant lineages. All adaptations for plants to live on land in
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BIO SCI 94 Lecture 16: Ch 32 Fungi
Unique ability-absorb cellulose/lignin that make up wood. Mutualists-fungi live with other organisms, benefit hosts. Mutualistic fungi colonize roots o
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BIO SCI 94 Lecture Notes - Lecture 17: Choanoflagellate, Detritivore, Synapomorphy
Cambrian explosion-radiation of animals, 550 millions years ago. Move under own power at one point. Neurons- nerve cells, transmit electrical signals t
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BIO SCI 94 Lecture Notes - Lecture 18: Protostome, Symmetry In Biology, Lophotrochozoa
Two major groups of bilaterally symmetric, triploblastic animals: protostomes and deuterostomes. Cavities rise from blocks of mesodermal cells coelom f
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BIO SCI 94 Lecture 20: Deuterosome Animals Part 1
Includes hagfish, lampreys, cartilaginous, bony fishes, amphibians, mammals, reptiles. Hard protective/supportive structures inside layer of epidermal
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BIO SCI 94 Lecture Notes - Lecture 23: T Helper Cell, Lysogenic Cycle, Virus
Enveloped viruses use host endomembrane system transport envelope protein for assembly. Viruses exit host cell in two ways: Enveloped viruses bud from
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BIO SCI 94 Lecture Notes - Lecture 24: Primary Production, Ecological Study, Heat Capacity
Understand why organisms live where the do and in what numbers break ecology into several levels analysis. Organismal ecologist- explore morphological,
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BIO SCI 94 Lecture Notes - Lecture 25: Thermocline, Upwelling, Turbidity
Freshwater/saltwater, three key factors- affect distribution/abundance of organisms. Salinity- proportion of solutes dissolved in water. Solutes have p
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BIO SCI 94 Lecture Notes - Lecture 26: Compass, Circadian Clock, Lightdark
Proximate/ultimate mechanisms for migration(long distance movement of population after season change) - relates to questions of habitat selection. True
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BIO SCI 94 Lecture Notes - Lecture 27: Survivorship Curve, Population Ecology, Biotic Component
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