.... metamorphosis juvenile hormone insect development growth (S)-methoprene hormones © 2017 National Association of Biology Teachers. All rights reserved. Please direct all requests for permission to photocopy or reproduce article content through the University of California Press's Reprints...

...Kim Spaccarotella; Roxie James Measuring plant stem growth over time is a simple activity commonly used to introduce concepts in growth and development in plant biology ( Reid & Pu, 2007 ). This Quick Fix updates the activity and incorporates a real-world application: students consider possible...

...Susan Wells Rollinson The growth of a pine tree is examined by preparing “tree cookies” (cross-sectional disks) between whorls of branches. The use of Christmas trees allows the tree cookies to be obtained with inexpensive, commonly available tools. Students use the tree cookies to investigate...