The major percentage of the heart is ________ muscle, which is the only muscle with automaticity, meaning contractions are controlled by the autonomic nervous system

Which of the following types of immunity is achieved through administration of ready-made antibodies?

a. Artificially acquired passive b. Artificial active immunity c. Congenital passive immunity d. Passive immunity

Rats have ____________________ rows of scales on their tail than mice

Fill in the blank(s) with correct word