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Principles of Biology Class Notes (Week 3)

by: Jonathan Thomas

Principles of Biology Class Notes (Week 3) Bio 100

Marketplace > Brigham Young University > Life Sciences > Bio 100 > Principles of Biology Class Notes Week 3
Jonathan Thomas
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About this Document

Notes for week three of Professor Jensen's class. This week we went over building a phylogenetic tree from a character matrix and qualities of animal and plant life.
Principles of Biology
Dr. Jamie Jensen
Class Notes
Biology, Principles of biology, jensen, byu, Phylogenics




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This 3 page Class Notes was uploaded by Jonathan Thomas on Saturday September 17, 2016. The Class Notes belongs to Bio 100 at Brigham Young University taught by Dr. Jamie Jensen in Fall 2016. Since its upload, it has received 74 views. For similar materials see Principles of Biology in Life Sciences at Brigham Young University.


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Date Created: 09/17/16
BIO 100  Principles of Biology  Jensen  Class Notes (Week 3)    DAY 6:    Q: How do we know the evolutionary relationships between organisms?  ­ Homology  ­ Genetic Code  ­ DNA  Convergent Evolutions = Analogy  Node on an evolutionary graph means the speciation (or separation) of a species’  physical traits.      DAY 7:    What do plants need to survive?  ­ Sunlight  ­ Chlorophyll  ­ Water  ­ Trace Nutrients (from soil) ­ Nitrogen  ­ Air (CO2)  To be alive:  ­ Reproduce  ­ Respond to Stimuli  ­ MAde of cells  ­ Grow and Develop  ­ Obtain energy/produce waste  Where can plants live?  ­ Land  ­ Saltwater/freshwater  ­ Inside  ­ Ice  ­ Mountain Tops  Meiosis: The production of sperm and egg  Gamete: Either the egg or sperm  Stomata: How plants breathe  Binary Fission: Asexual reproduction/ divide into two  Cuticle: A waxy covering to preserve moisture  Mesic: Moderately amount of moisture  Endosperm: The “food” for a seed  Lignin: Allows structure for plants  Cellulose: Sugar compound (every other sugar molecule is upside down)  Peptidoglycan: Protein sugar  ­ Pepto: protein  ­ Glyco: sugar  Tracheids: Has holes in it (primitive form of vascular tissue)  Vascular Tissue: Allows you to grow tall and glean moisture from the grown (long pipes  in the plant)  Lichen: symbiotic relationship between algae and fungus  A­ Angiosperm  B­ Bryophytes (Moss)  C­  Cyanobacteria (blue algae)  D­ Algae  E­ Gymnosperms  F­ Fern    DAY 8:    Animals:  ­ Things don't always get “more complex” over time in the evolutionary sense.  ­ Reproduction is a good trait to follow in cladograms  Phylogenic Tree Tips:  ­ Look for most common  ­ Shade the “1’s”  ­ Start from the least common and work your way up   


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