Definition noun A medical term used to refer to a condition or state in which a woman has never given birth to a child, or has never carried a pregnancy. Supplement Word origin: from Latin nūllus, none + parere, to give birth. Related forms: nulliparous (adjective). Compare: multiparity...
Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural select..
Learn about community patterns and the ecological factors influencing these patterns. Revisit some of the ecosystems you..
Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory res..
Plant organs are comprised of tissues working together for a common function. The different types of plant tissues are m..
The endoplasmic reticulum and Golgi apparatus are the organelles involved in the translation step of protein synthesis a..
The body is comprised of different elements with hydrogen, oxygen, carbon, and nitrogen as the major four. This tutorial..
