The movement of molecules against their concentration gradient is called

What separates the thoracic cavity from the abdominopelvic cavity?

What organelles are small vacuoles containing oxidative enzymes?

Membrane proteins that extend into the lipid bilayer are called

The sternal region is commonly known as the

Positive-feedback mechanisms are always damaging to the body.

The thoracic cavity is situated superior to the abdominopelvic cavity and separated by the diaphragm. Therefore, the diaphragm creates a:

DNA

How does the effector restore homeostasis in a negative feedback loop?

Molecules that serve as chemical signals to open or close gated ion channels are