Invertebrate Survey Set , preserved, 9 phyla, 16 species.
Use specimens as teacher demonstration models or for dissection by students working in groups at separate stations. The Invertebrate Set includes representative specimens across 9 phyla (16 species) designed to help students gain a better understanding of the diversity of invertebrate organisms and the shared characteristics found along taxonomic lines.
Students compare internal and external structures and make observations about the respiratory, digestive, circulatory, and reproductive systems, if present, for each specimen.
The teacher's manual contains extension activities and a reproducible blackline master student guide. The student guide contains background information, dissection guides for each of the animals and protozoa, and reflection questions.
|Teacher's Manual with Reproducible Blackline Master Student Guide||1||Included|
This set is in Carosafe® holding fluid;
Carosafe Preserved Specimens
Carosafe® is Carolina Biological's proprietary shipping and holding fluid for specimens that have been previously fixed in formalin. Although specimens are first preserved with a formalin solution, they are then washed and placed in formaldehyde-free Carosafe®. Holding the specimen in Carosafe® reduces the presence of formaldehyde residues left over from the initial preserving process, thereby diminishing or eliminating unpleasant odor. This produces a formalin-preserved specimen that, when dissected, minimizes student and educator exposure to formaldehyde.
Carosafe® specimens should be washed before use and dissected in well ventilated rooms with appropriate hand, eye and body protection.
STORING PRESERVED SPECIMENS
For best results, carefully unpack your delivery of preserved specimens as soon as it arrives. Store the specimens in the dark in a single layer on a flat surface. A drawer or cupboard shelf is ideal. Do not refrigerate. Avoid stacking the specimens on top of each other or otherwise putting weight on them. Undue pressure can cause breakages in brittle specimens such as crayfish and grasshoppers, and can cause deformation of soft-tissue specimens such as brains and kidneys.