Dropper
1. One who, or that which, drops. Specif., a fly that drops from the leaden above the bob or end fly.
2. A dropping tube.
3. (Science: chemical) a branch vein which drops off from, or leaves, the main lode.
4. (Science: zoology) a dog which suddenly drops upon the ground when it sights game, formerly a common, and still an occasional, habit of the setter.
Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..
The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..
The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..
Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..
Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..
Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..