Evolution and Ecology: Understanding the Dynamics of Organisms and Populations
Evolution
Change over time in the proportions of individual organisms that differ genetically.
Microevolution
Change over time in gene frequency within a population.
Macroevolution
Change over time in the proportions of species that determines the diversity of a taxonomic group.
New Organism Types
Micro-Mutation & Macro-Speciation
Alteration of Proportions of Different Organism Types
Micro-genetic drift, Natural Selection & Macro Adaptive Radiation
Natural Selection = not random, leads to evolution
Read MoreFrom DNA to Protein: Transcription and Translation
From DNA to RNA
From DNA to RNA: DNA does not synthesize proteins on its own. First, segments of the DNA called genes are copied into RNA. These RNA copies are used to direct the synthesis of protein. Many identical copies of RNA can be made from the same gene, enabling cells to rapidly synthesize protein.
Differences Between RNA and DNA
The nucleotides in RNA contain ribose sugar; DNA contains the base uracil instead of thymine. RNA is single-stranded and can fold into a variety of shapes and carry
Read MoreIntegumentary, Muscular, and Skeletal Systems: Functions and Disorders
Integumentary System
Functions
- Protection
- Regulation of temperature
- Sensory perception
- Regulate water loss
- Chemical synthesis
Physical barriers
- Waterproofing keratinized skin
- Certain waterproofs & protects
Biological barriers
- Langerhan’s cells
- Macrophages
- DNA
Temperature Regulation
- Sweat
- Constriction when cold
Cutaneous sensations
- Messiner’s corpuscles: light touch
- Merkel discs: light touch
- Pascinian receptors: pressure ducts
- Hair root plexus: sensations from movement of hairs
- Hair follicle receptors: movement across
Biology: Cells, Energy, and Human Body Systems
I. Science Skills
9 Process Skills: Observing – using senses (see, hear, taste, smell, touch) Communicating – give or receive information Measuring – compare something to standard or non-standard units Classifying – use observations to group objects or events according to similarities and differences Interring – using past experiences to draw conclusions and make explanations about events not directly observed Defining Operationally – using past experiences to draw conclusions and make explanations
Read MoreLiving Environment Units: Science, Reproduction, Genetics, Evolution, Ecology
Index of Living Environment Units
Unit 1: Science and the Living Environment (pg 2-4)
- Scientific method
- Controlled experiments
- Graphing
- Characteristics of good experiment
Unit 2: Characteristics of Living Things (pg 5-10)
- Chemistry (carbohydrates, lipids, proteins, enzymes, acids and bases)
- Homeostasis, metabolism, and life processes (including photosynthesis and respiration)
- Cells
Unit 3: Homeostasis and the Human Body (pg 11-15)
- Organization
- Human body systems
- Diseases and disorders
Unit 4: Reproduction (pg
Read MoreConcept of education
| 3 types of population distribution | Even, random, lumped | ||
| 2. | Aerobes | need oxygen | |
| 3. | Algae | Euglenids Red, green, or brown algae Diatoms Dinoflagellates | |
| 4. | Algae are important producers in the food chain because | they contain chlorophyll and are autotrophs | |
| 5. | Anaerobes | Don’t need oxygen | |
| 6. | Analyze the scientific basis for Darwin’s species evolution and human evolution theories | These theories are highly speculative because of the incomplete fossil record and the ecological nature of fossilization | |
| 7. | Animals trophic relationship | Secondary |