spinnbarkeit The stringy, elastic character of cervical mucus during the ovulatory period; in contrast to other times in the menstrual cycle, cervical secretions at midcycle are clear, abundant, and of low viscosity. Origin: Ger. Spinnbarkeit, visxosity, ability to form a thread..
Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..
Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..
Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..
A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..
Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..
Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..
