Curated OER
Pollination, Plants and Insects
The pollination of milkweed involves a high risk for the bees and butterflies involved. Though the nectar is sweet and delicious, the pollen is very sticky. If a bee is not strong enough to pull the pollen free, he will be stuck and die....
Curated OER
Endocrine System and Hormones
Paul Andersen compares your endocrine system to Facebook and your nervous system to Gmail in order to show the differences in response time. He then delves into specifics of your endocrine system, talking about hormones that are water...
Curated OER
The Female Reproductive System
A slide presentation is shown while the structures and functions of female reproduction are covered with narration. Estrogen is treated with some detail as well. Learners can easily take notes following the outline on the screen. This...