BISC 102 Study Guide - Final Guide: Null Hypothesis, Relative Growth Rate, Hypha

• School: Simon Fraser University
• Department: Biological Sciences
• Course: BISC 102
• Professor: Dr. Rolf Mathewes

Document Summary

Activity 1: sex and reproduction in the bread mold rhizopus. Observations: each sporangium is borne on a single, slender hypha. These can be seen on the slides, but rarely on the plates. Zygosporangia appear as dark spiky balls attached to two swollen hyphae. These can be seen on both slides and plates. What was the significance of the two groups of control broods: orange control nests. These chicks were handled by experimenters for the same time as trimmed chicks in other nests. Without this control, experimenters could not be sure that effects on trimmed birds were due to removal of feather color, rather than effects of handling. These chicks had the orange tips of their feathers trimmed. The black control nest is important for 2 reasons. It allows researchers to determine if the chicks are affected by the trimming itself (e. g. , loss of insulation), and allows researchers to determine if parents are still able to recognize chicks.