The lesson ties into the concepts of survival and extinction of multicellular organisms from the previous lessons. R: Students rethink how organisms respond to the environment as they design an experiment on one of the pond water microorganisms from the previous lesson. E: Students express their understanding on the worksheet, in class discussion, and in groups as they work to design an experiment.
Itâs too late to attract a western hummer this winter, but perhaps youâd like to try next fall. According to Weidensaul, in addition to keeping hummingbird feeders up well into autumn, many successful hummingbird hosts have late-blooming fall plants.
Putting your hummingbird feeder in place at the right time is important to ensure that food will be waiting for the birds when they return. credit: CarolinaBirdman/iStock/Getty Images. A well-kept hummingbird feeder can keep the birds coming for months, until they head south again in fall. Putting your hummingbird feeder in place at the right time is important to ensure that food will be waiting for the birds when they return. credit: CarolinaBirdman/iStock/Getty Images A well-kept hummingbird feeder can keep the birds coming for months, until they head south again in fall.