Comparison of Tissues (Bi 1 Extra Credit)

This sample of a stalk of grass was plucked from the lawn in front of Lloyd House at 4:00 on June 1. The sample (and all of the other samples in this post) was placed on a glass slide and covered with a cover slip. The snapshot seems to show individual cells in the stalk…

Caltech Rose Pollen Sample

This pollen sample was collected from a rose (pictured) in one of Caltech’s rose gardens on May 7 at 6 pm. The sample was prepared by placing a drop of water on a plastic coverslip and gently pressing the coverslip multiple times against the anthers of the rose. The coverslip was then mounted on a…

Baxter Pond Scum

This sample was obtained at 6:50 p.m. on 4/8/19 from the Baxter lilypad pond. The sample was collected by sticking a falcon tube into the pond.Questions: What organism, if any, is present in the image? How common is it in Baxter pond?Potential approaches to answering questions: It would be helpful to obtain more samples from...