Anterior refers to what is in front for example your abdomen is anterior whereas your back is posterior relative to eachother. Another example is that your nose is anterior to your brain. Anterior and posterior are relative terms.
100 percent anterior
Posterior to Iris
The cell of Euglena has an anterior flagellum.
No, anterior and posterior are not the same. Anterior refers to the front or forward-facing side of an organism, while posterior refers to the back or rear-facing side. They are opposite directions in terms of anatomical position.
The anterior or posterior displacement of a vertebra or the vertebral column in relation to the vertebrae below.
posterior
The kidneys have their anterior and posterior surfaces. The foremost surface countenances towards the front stomach wall, while the back posterior surfaces confronting the posterior stomach wall. These surfaces are isolated by the edges of the kidney, which are the significant convexity horizontally, and minor concavity medially.
Anterior, posterior and lateral also.
....behind/back and antonym would be anterior - in front/front
What animals? As anterior means front and posterior means back, then most-if not all animals have a front and back, or an anterior and posterior. They are usually characterized by a mouth(anterior) or rectum/anus (posterior).
Anterior
Not sure of the context, but: Anterior = front posterior = rear
If you refer to lungs in humans, then the lungs are anterior to the spine
the opposite of anterior is Posterior.
Which structure lies posterior to the bladder and anterior to the rectum?
Anterior has four surfaces while posterior has five.