7th Grade Science Journal Make-Up Sheet Wednesday, 4-29 to Wednesday, 5-6 (8 Days) Wednesday, 4-22 List any two abiotic factors and any two biotic factors in the school’s land lab. Explain why all habitats are ecosystems, but not all ecosystems are habitats. What is the main difference between the two? Monday, 4-27 Why is it important for nature to keep an organism population in check? What happens when populations increase or decrease suddenly? What is an alien or exotic species? Explain how these are limiting factors in an ecosystem. Tuesday, 4-28 Why is it important for all Ohioans to know about the emerald ash borer beetle? What is it? What does it do? Explain what the term biodiversity means. Why is this important in an ecosystem? Wednesday, 4-29 Describe the process of how primary succession works. What is a pioneer species? What are the three main differences between primary and secondary succession? Friday, 5-1 Why are producers so important to every ecosystem? What is the main difference between photosynthesis and respiration? Monday, 5-4 List the main steps in the nitrogen cycle. List the main steps in the carbon cycle. Tuesday, 5-5 Give at least three reasons why an inverted energy pyramid is impossible. What factors determine the various types of biomes in the world? Wednesday, 5-6 Which land biome supports the greatest biodiversity on the planet despite having poor soil? In which land biome is the majority of the world’s food grown because of its great soil?