- Quick Chapter Review! 1. A pest is A. a weed B. an organism that destroys crops C. any plant that grows where humans do not want it to grow D. all of the above 2. The concentration of a chemical increases as you move up the food chain.This is called A. resistance B. insecticide C. biological destruction D. biological magnification 3. The buildup of nutrients in a lake leads to excessive plant growth a lack of oxygen, and the eventual death of the lake. This process is called A. nitrification B. eutrophication C. non-biodegradable D. biological magnification 4. Which of the following is caused by heat trapped in the atmosphere? A. eutrophication B. greénhouse effect C. biological magnification D. the buildup of nitrogen in the atmosphere 5. From which of the following sources does Alberta get most of its energy? A. fuel cells B. solar energy C. wind energy D. fossil fuels 6. The burning of fossil fuels is harmful to the environment because A. heat is released into the atmosphere causing global warming B. water vapour is released into the atmosphere, causing torrential rains C. hydrocarbons are released into the air,blocking sunlight and cooling Earth D. carbon dioxide is released into the atmosphere, adding to the gases that cause global warming
- 3. Diagram the parts of a stream and explain how biotic and abiotic factors that make up the stream ecosystem function together.
- Practice It! Select the statement(s) that accurately describes the purpose of the phases of meiosis I. During anaphase I, unique homologous chromosomes are equally but randomly pulled apart to opposite ends of the cell. During telophase I, duplicated chromosomes condense, the nuclear envelope disappears and the spindle apparatus form. During prophase I, crossing -over occurs where chromosomes swap or trade DNA creating genetic variation among the cells. Melosis I Is preceded by Interphase and followed by cytokinesis. During metaphase I Independent assortment occurs where chromosomes are line up randomly in the middle of the cell,
- Human blood type is controlled by three different alleles: P, P,and i. The F^A and P^B are codominant, while the i allele is recessive. A man with blood type A has a son with blood type B and a daughter with blood type AB. What are all the possible genotypes of the biological mother?
- There is a relationship between the inheritance of genes , and expression of particular - traits So __ How does a gene determine a trait?
