Definition, Usage & Role in Reproductive Biology
A fetus is a developing baby from week 9 of pregnancy until birth. Learn its meaning, usage in biology and everyday language, and related terms like embryo and newborn.
Embryo: Definition, Usage & Language in Biology and Beyond
An embryo is the early stage of life after fertilization and before the fetus stage. Learn its meaning, usage in biology and language, collocations, and related terms.