Bell Work 9/22/15 1.SPI (Adaptations) Source: 2009 TDOE Practice Test Questions (Number 11) The Arctic environment has temperatures that range between - 22 C and 6C with snow covering some of the area. Which adaptation would most likely help a population of organisms survive this environment? A. Green feathers and webbed feet B. Large shell and leathery skin. C. Long necks and tall legs. D. Light colored fur and layers of blubber.

Bell Work 9/22/15 1.SPI (Adaptations) Source: 2009 TDOE Practice Test Questions (Number 11) The Arctic environment has temperatures that range between - 22 C and 6C with snow covering some of the area. Which adaptation would most likely help a population of organisms survive this environment? A. Green feathers and webbed feet B. Large shell and leathery skin. C. Long necks and tall legs. D. Light colored fur and layers of blubber.

Objectives State Performance Indicators: SPI Analyze structural, behavioral, and physiological adaptations to predict which populations are likely to survive in a particular environment SPI Analyze data on levels of variation within a population to make predictions about survival under particular environmental conditions. SPI Analyze data on levels of variation within a population to make predictions about survival under particular environmental conditions.

Study Guide 1. Define Classification. The division of organisms into groups, or classes, based on specific characteristics. 2. What are the eight levels of classification? Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species 3. Scientists classify organisms by? A two part scientific name that consists of the genus & species. 4. Be able to use a branching diagram. 5. What is a dichotomous key? An aid that is used to identify organisms and that consist of the answers to a series of questions.

Study Guide 6. Define adaptation. Characteristics that improve an individual’s ability to survive and reproduce in a particular environment. 7. What are the 3 kinds of adaptations? 1. Obtaining Food 2. Predator-Prey 3. Interactions (Symbiosis) 8. Define Natural selection. The process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do.

9. Name and describe the four steps of natural selection. 1. Overproduction - more offspring are born than will live to become adults. 2. Genetic Variation - Individuals in a population differ from one another. Some characteristics improve chances while others lower chances for survival. 3. Struggle to Survive - Many individuals die from lack of resources. Others are killed by predators or cannot find mates to reproduce. The ones who find resources survive! 4. Successful Reproduction - This is the key to natural selection. The strong survive, while the weak die early or have few strong offspring.

10. What is genetic variation? Differences among organisms that are passed on from parent to offspring that help them survive better. 11. What is genetic bottlenecking? When a population decreases rapidly, the characteristics of the individuals are reduced causing problems like birth defects. 12. What are the 3 types of evidence that show an adaptation? Physical adaptations, Behavioral adaptations & Physiological adaptations 13. Define Species. A group of organisms that can mate with one another to produce fertile offspring. 14. Define population. Groups of individuals of the same species living in the same place at the same time.

Quizizz Classification, Adaptation, Population ChangesClassification, Adaptation, Population Changes

EXIT TICKET Write down a question you still have about adaptations and survival or something you learned today.