Negative feedback is a method of homeostatic control that __________.

Nodes of _____ are gaps in the _____ that coat some axons.

Rods are to cones as _____ is (are) to _____.

Salinization increases the concentration of _______ in soil.

Savanna is considered a transitional biome because it is intermediate between two _______.

Scientific experimentation is important in that it allows the experimenter to __________.

The frequency of cystitis in men is lower than in women because ______.

The region of thin filaments only that is part of two adjacent sarcomeres is the ______.

The extensor muscles of the upper limb lie almost exclusively in the ________ region of that limb.

Skeletal muscle produces force as the ________ ""walk"" along the ________.

A food that has a high glycemic index (gi) produces a ____.