Some say that beauty’s only skin-deep. But one veterinary surgeon and his team look beneath the surface…literally. Scott Echols says that we don’t actually know very much about the anatomy of animals because haven’t had a way to properly visualize it. But now, with the help of a new imaging technology called BriteVu, researchers have access to a trove of data on animal anatomy. Continue reading
Maddie Moate investigates why some animals have body parts that serve no purpose. Continue reading
Cells require a constant supply of glucose and oxygen to produce energy. As a result of this process, large quantities of waste carbon dioxide must be expelled from the cell. All materials involved in this reaction are either imported or exported through the cell membrane by diffusion.
In this demonstration, students soak agar “cells” containing phenolphthalein indicator in a solution of sodium hydroxide, NaOH(aq). Students observe the effect of cell volume and surface area on the extent of diffusion of the sodium hydroxide solution through the “cell”.
Engaging Students in Grade 10 Organs & Organ Systems. By Leila Knetsch
Curriculum Connection: Grade 10 D/P Science, Cells and Tissues Unit
Grade 5: Life Systems
Contributed by: Derek Totten
I was working late in the lab one night when ….
- Organ systems are components of a larger system (the body) and, as such, work together and affect one another.
- Organ structures are linked to their functions.
««« Written by Leila Knetsch.
This is an engaging activity that helps students see how the circulatory, respiratory and digestive systems interrelate. Continue reading