1. Human Impact on the Ocean Systems Do Nows Week of April 18-22

2. Do Now 4/19/16 Create a T-Chart and list the advantages and disadvantages of artificial reefs in the ocean.

3. Do Now 4/20/16 Use the word bank to complete the statements. 1.The largest number of individuals of one species that an environment can support. 2.Anything that restricts the size of a population such as water, temperature, disease or food. 3.The position or level that an organism occupies on a food chain or energy pyramid. 4.Human made underwater structure built to promote marine life. 5.A plant, animal or pathogen that is not native to a specific location. Artificial reef carrying capacity biotic factor trophic level invasive species limiting factor population density

4. Do Now 4/21 Use the energy pyramid to answer the questions 1.Identify the organism found in the first trophic level and describe its role. 2.Identify the organism in the fourth (4 th trophic level) and describe its role. 3.How much energy is transferred to each trophic level? 4.How much energy is transferred to the Hawk? 5.Which organism receives the least amount of energy?

5. Do Now 4/22 Use the food web and create two food chains.