1. Find a picture of an animal with an adaptation and explain how the adaptation is going to help that organism survive in it's environment. It can go a long time without water. Water is scarce in deserts so that adaptation helps him.
2. List 2 ways humans have caused changes in populations of organisms. Pollution. Building over their homes. 3. How have humans negatively affected various populations? They polluted their environment. 4. What would happen to other organisms in a marine food web if human impact negatively affected one type of organism? It would effect the food webs, messing everything up, having them fight for food. 5. How has over harvesting or over fishing negatively affected the aquatic ecosystem? There is less food so the animals starve and fight for food. 6. What is bacteria's role in the ecosystem? How do they obtain nutrients? To turn dead organisms into nutrients for soil. Through dead organisms. 7. Describe a producer/consumer relationship in the food web below. Phytoplankton - Zooplankton 8. Find a picture of a parasite/host relationship and explain which organism is the parasite and which one is the host. Parasite- flea, its feeding off the dog. Host- Dog, its home to the flea. 9. Describe a predator/prey relationship in the food web below. Wild cat - Lion Lion eats the Wild cat. 10. How many atoms are present in the molecule below? 24 11. How do you know by looking at a bohr model which elements are in the same group? You look at the number of protons giving you the atomic number to see if those numbers are in the same column. 12. What information is given when we have the chemical formula for a substance? How the atoms changed. 13. Describe evidence of a chemical reaction. If it Precipitates Endothermic or Exothermic reaction happens color change it smells bubbles occur oxidation happens and combustions. 14. Does the equation below follow the Law of Conservation of Mass? No. 15. How to valence electrons tell us how reactive an element is? It tells us how much we need to gain or lose the smaller you need the more reactive it is. 16. Describe examples of chemical and physical changes in the digestive system. Physical- Chewing. Chemical- Stomach acid breaks down food creating heat energy in the muscles. |