As we learned in the rat dissection lab one of the main differences between rats and humans is orientation and direction. The dorsal side of a rat points in the upwards direction though in humans the dorsal side is the same as the direction .

Backwards direction

Explanation:

The dorsal surface or side of a human refers to the backward side.

The anatomical position in humans is usually described as

Body erect

Feet slightly apart

Palms facing forward

Thumbs pointing away from the body.

The anatomical position is the standard reference point in which all positions and movements are described.

The dorsal recumbent position is described as the position whereby the patient is o their back with their lower limbs rotated outwards. It is used in clinical procedures such as vaginal examination.

Another type of dorsal position is the lithotomy position.

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg