To reconstruct phylogenies, biologists use the __________ method.

A man who carries an allele of an x-linked gene will pass it on to _____.

A means of controlling sex offenders has involved reducing ____.

A person experiencing dizziness after using a strong household cleaner is illustrating ____.

A regulatory process called _____ helps you maintain your baseline body weight.

Action potentials occur ____________________________.

This pair of molecules are _____.

The wing of a penguin is ________ the wing of a butterfly.

These molecules are _____.

When antibodies bind antigens, the clumping of antigens results from _____.

This variable region gives an antibody ______ for an _______.