"Prototroph" Natural Recordings by Native Speakers
A prototroph is an organism that can synthesize all the organic compounds it needs to survive and grow using its own genetic information and energy from the environment, without requiring supplements or external sources of nutrients. In other words, a prototroph is a self-sufficient organism that can produce all the necessary molecules, such as amino acids, nucleotides, and fatty acids, through biological processes.
In contrast, an auxotroph is an organism that cannot synthesize certain essential compounds and requires supplements or external sources of nutrients to survive.
The term "Protosuchians" refers to a group of archaic crocodile-like extinct reptiles that lived during the Early Cretaceous period, from around 145 to 100 million years ago. They were among the first cousins of modern crocodilians.
Prototheria is a clade of mammals, which includes the monotremes (such as the platypus and echidna), characterized by laying eggs instead of giving birth to live young. The name "Prototheria" comes from the Greek words "proto", meaning "first" and "therion", meaning "beast" or "animal", indicating that this group is thought to be the earliest known lineage of mammals.