The thigh bone, the longest and strongest bone in the human body, extending from the hip to the knee.

To undergo fermentation, a metabolic process that converts sugars into acids, gases, or alcohol in the absence of oxygen.

A metabolic process that produces energy through the conversion of glucose or other sugars into organic compounds like alcohol or acids, often in the absence of oxygen.

A group of iron-sulfur proteins involved in electron transfer reactions in plants, bacteria, and other organisms.

A plasmid or genetic element in bacteria that allows them to transfer DNA during conjugation and enables fertility.

The process by which a sperm cell and an egg cell combine to form a zygote, initiating the development of a new organism.

A substance, often rich in essential nutrients like nitrogen, phosphorus, and potassium, added to soil or plants to promote growth.

Relating to a fetus, the unborn offspring from the end of the eighth week after conception until birth.

Substances or agents that are harmful or toxic to a developing fetus, potentially causing developmental damage or death.

An unborn offspring, particularly in humans, from the end of the eighth week of pregnancy until birth.