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Compare and contrast the second and third lines of defense. List two components of each line of defense. 

Which type of tissue is most likely to become cancerous? 

Which of the following is associated with the second line of defense?

Cells in ____________ have more mitochondria than other cells in the body. 

Which of the following is associated with the first line of defense?

True or False: Vaccines should be antigenic, not pathogenic. 

Which of the following associations is correct? 

True or False: Peristalsis helps to propel food through the digestive tract

During _________, the sperm and oocyte interact to form a zygote.

Explain the difference between hyperopia and myopia. Include information on the underlying cause of these visual disorders.