LAB SAFETY C. Massengale An important part of your biology work will take place in the laboratory. The lab is a safe environment in which to work if some general rules are observed and if the people who work in the lab are informed and careful. THESE GUIDELINES ARE SPECIFICALLY FOR BIOLOGY. Read the … Continue reading “Lab Safety/Safety Contract”
Main Idea Practice Answers Main Idea Exercise 1 1.b; 2.b Exercise 2 1. Across the country, many states have abolished the policy of “social promotion,” even though there is no hard evidence that making children repeat a grade has a positive effect. 2. In 1932, Wallace H. Carothers developed nylon, the first synthetic fiber, … Continue reading “Main Idea Answers”
Lab 7 Genetics of Organisms Introduction: Drosophila melanogaster, the fruit fly, is an excellent organism for genetics studies because it has simple food requirements, occupies little space, is hardy, completes its life cycle in about 12 days at room temperature, produces large numbers of offspring, can be immobilized readily for examination and sorting, and … Continue reading “Lab 7 Genetics of Organisms”
Drosophila Genetics Introduction Drosophila Melanogaster, the fruit fly, is a great organism for genetic use because it has simple food requirements, occupies little space, is hardy, completes its life cycle in 12 days, makes a large number of offspring, can be knocked out easily, and it has many types of hereditary variations that can be … Continue reading “Lab 7 Sample 3 Fruitflies”
Battle of the Hermaphrodites Sexes Clash Even When Sharing the Same Body DUELING FLATWORMS. Two hermaphroditic flatworms, Pseudobiceros bedfordi, each with pale, side-by-side penises, show their undersides as they square off to mate. Michiels Many snails, slugs, and worms are so-called internally fertilizing, simultaneous hermaphrodites. In any encounter, such creatures can deliver sperm, receive … Continue reading “Hermaphrodite Article”
