Walking Ecology Scavenger Hunt – HL Bio year 1, Topic 5.1-5.3 Name: 1. As we move to and through the Alapocas Woods trail (as far as we can get in the time available – stay within listening distance of the teacher to hear instructions for turning around if needed to make it back for the next class!), keep a record of observations of examples and evidence (direct is better, but indirect is acceptable) of any of the following concepts from our ecology unit. In order to get credit, you must have a brief description , applying the concept to the situation accurately. Species Habitat Population Community Ecosystem Ecology Autotroph Heterotroph Consumer Producer Saprotroph Food chain Food web Trophic level Energy sources Energy flow Decomposer Carbon cycle Greenhouse effect Precautionary principle Natality Immigration Mortality Emigration Growth curve Limits to growth 2. Now, to begin a review for the upcoming final, also look for evidence that you can explain which connects to the following processes that we have studied this year: Cell theory (functions of life) Types of cells (prokaryotic, eukaryotic, where do viruses fit in?) Specialization (cell parts, responses to environmental, developmental cues) growth and development (mitosis, specialization) structure/function relationships (enzymes, carbohydrates, proteins, lipids, nucleic acids) metabolism (DNA replication, transcription, translation, respiration, photosynthesis) genetic variability (sources of diversity, causes of mutation, even the use of genetic technology) natural selection (more on this next fall!!) homeostasis (like in the carrying capacity of a population) negative feedback (like the limitation due to food, resources, disease etc.) specificity of enzymes (see structure function above – also in metabolism, optimization) universiality (of codon usage in translation, played out in shared structures and functions) redundancy (of third base in codons, played out in diversity within related individuals) surface area to volume ratios (limits to growth of cells…what about organisms?) regulation (switches, triggers, environmental control_ one gene one polypeptide (mutation, effect of genotype on phenotype, exceptions to this) 3. Take a trash bag and pick up along the way – be careful to pick up cleanly, using the bag as a glove and wash your hands when you return.