Answer. They are the “last trophic level” in some hierarchies because they feed on everything (National Geographic). However, according to the strict trophic level definition they would be primary consumers.
The first one is web and the last one is chain. I'm not sure though.
Explanation:
The formal region is superior (proximal) to the crural region.
Our body is divided into different regions. The term Proximal refers to the closer point of attachment to body's main part. Thigh is the femoral region of the body. An example is that, knee is proximal to feet. The femoral region is also proximal to plantar region.
Agility.
Agility is the ability to change body position quickly and is usually referred to as being very agile.
Hope this helps!