Spindle fibers •Are made by centrioles
•All of the choices are correct
•are composed of thin protein filaments
•direct chromosome movement in cell division

Are substances released into the environment that in excess amounts cause damage

Are the earth's ocean floor and continents the same age geologically? why or why not?

Sally, age 3 months, has a moist, red, vesicular rash on her cheeks, the backs of her hands, and her arms. her mother said sally was constantly trying to scratch the rash and often has difficulty sleeping. her father has a family history of allergic rhinitis and asthma. discussion questions. 1. review atrophic dermatitis from chapter 3 and discuss the pathophysiology of sally’s symptoms. 2. why is the father’s medical history significant, and what can sally expect as she grows up? 3. discuss the need to limit scratching, and describe practical methods to achieve this.