Sex chromosomes are particular chromosomes that are involved in determining the sex of an organism. In the cells of humans and many other organisms the sex

Jun 17, 2016 · When introduced into healthy tissue, the HACEK group organisms have the potential for abscess formation and invasive disease. In addition, many examples

Organisms of many species are specialized into male and female varieties, each known as a sex, with some falling in between being intersex. Sexual reproduction

Is Love in Our DNA? Did evolution shape your taste in a mate? Take our poll. The Advantage of Sex Why did sex evolve? The likely answers may surprise you.

Harmful organisms can damage our bodies and steal nutrients. Learn what harmful organisms are, the symptoms, and how to avoid them.

(sěks) Either of two divisions, male and female, into which most sexually reproducing organisms are grouped. Sex is usually determined by anatomy, the makeup of the

The last universal common ancestor (LUCA) is the most recent organism from which all organisms now living on Earth descend. Thus it is the most recent common ancestor

This section is under development. One day, there will be a searchable database of vocabulary terms here.

gender In many other languages, especially the Romance languages (such as French, Spanish, and Italian), a large number of nouns are coded as being either feminine or

Apr 23, 2012 · Video embedded · From something as small and complex as a chromosome to something as seemingly simple as the weather, sex determination systems vary significantly across