What is Fetus in Biology?

Learn Fetus definition in biology with explanation to study “What is Fetus”. Study fetus explanation with biology terms to review biology course for online degree programs.

Fetus Definition

  • At 8 weeks, all the major structures of the adult are present in rudimentary form, and the embryo is called a fetus.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson



Fetus Explanation

A fetus is the unborn progeny of an animal that grows from an embryo. In humans, the fetal development begins from the ninth week after fertilization and carries on until birth. A fetus is characterized by the presence of all the major body organs, although they will not yet be fully settled or functioning and some might not even be at their final place in the body but they are present still.

Keep Learning Biology Explanations

What is Photomorphogenesis?

Photomorphogenesis is light-mediated development, where plant growth patterns respond to the light spectrum. This is a completely separate process from ...

What is Van der waals force?

Weak forces that are responsible for bond formation only when the atoms are in close proximity, these forces are much ...

What are Angiosperms?

The flowering plants are also known as angiosperms. Angiosperms are the most diverse group of land plants, with 64 orders, ...

What is Transcription unit?

Sequence of nucleotides in DNA that codes for a single RNA molecule, along with the sequences necessary for its transcription; ...

What is Florigen?

Florigen is also called the or flowering hormone and is the hypothesized hormone-like molecule responsible for controlling and/or triggering flowering ...

What is Thermoregulation?

Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature ...