DCP #3 Review
Question Answer
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.
2. List 2 ways humans have caused changes in populations of organisms. 3. How have humans negatively affected various populations? 4. What would happen to other organisms in a marine food web if human impact negatively affected one type of organism? 5. How has over harvesting or over fishing negatively affected the aquatic ecosystem? 6. What is bacteria's role in the ecosystem? How do they obtain nutrients? 7. Describe a producer/consumer relationship in the food web below. 8. Find a picture of a parasite/host relationship and explain which organism is the parasite and which one is the host. 9. Describe a predator/prey relationship in the food web below. 10. How many atoms are present in the molecule below? 11. How do you know by looking at a bohr model which elements are in the same group? 12. What information is given when we have the chemical formula for a substance? 13. Describe evidence of a chemical reaction. 14. Does the equation below follow the Law of Conservation of Mass? 15. How do valence electrons tell us how reactive an element is? 16. Describe examples of chemical and physical changes in the digestive system. |
1.The Camel can either store fat or water in its hump.
2. Over-harvesting, and air pollution 3. by hunting them down. 4. The ones relying on that organism for food will die out and the ones that usually get eaten by that organism will over-populate. 5. over-harvesting = it takes the nutrients out of all of the soil. over-fishing = there won't be very many fishes left in the ocean or pond. 6. Bacteria's role is to break down the dead organisms. They get there nutrients by breaking down the dead organisms. 7. Phytoplankton/zooplankton
8.The parasite = mosquito / host = the human 9. The lion=predator / the jackal=prey
10. 24 atoms 11. by finding out how many valence electrons there are in the atoms.
12. how many different atoms, what elements are in it, how many molecules are in the formula, and what molecules combine to make what other molecule (product) 13. Please Excuse Coughs Sneezes Burps Or Chunks 14. No. It does not follow the law of conservation of mass. 15. they tell us how reactive an element is by the groups and how many electrons they need to lose or gain to get 8.
16. Physical changes = chewing / chemical = stomach acid digesting the food. |