Facial bones
The facial skeleton, consisting of bones situated between the cranial base and the mandibular region. While some consider the facial bones to comprise the hyoid, palatine, and zygomatic bones, mandible, and maxilla, others include also the lacrimal and nasal bones, inferior nasal concha, and vomer but exclude the hyoid bone.
Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..
Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..
According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..
Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..
The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..
Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..