Exocrine glands have ducts that discharge secretions.

A cell discharging contents outside the cell is called __________.

Nucleotides are made of a sugar, nitrogen base, and a phosphate.

Tendon and ligament fibers intermingle with the endosteum for attachment of muscle to bone.

Isometric contraction is when muscle tension rises but the muscle does not change length.

The physical movement of air into and out of the lung is called:

Match the term and its definition:

Fertilization of the ova usually occurs in the __________.

The chamber of the heart with the thickest wall (because blood from its chamber will be distributed to the entire body) is the __________.

In DNA, adenine pairs with uracil.