Most medical advances of the past 100 years have come about through the use of ____________________ ...

Most medical advances of the past 100 years have come about through the use of ____________________ to test treatments and medications.
 
  Fill in the blank(s) with correct word

Question 2

Breeding true means that the offspring will almost always look like the parents.
 
  Indicate whether the statement is true or false

Question 3

Freeze branding kills the ____________________producing cells at the base of the hair follicle and results in white hair growth.
 
  Fill in the blank(s) with correct word

Question 4

Salamanders belong to the subphylum Amphibia.
 
  Indicate whether the statement is true or false

Question 5

In freeze branding, an iron is immersed in a container of liquid ____________________.
 
  Fill in the blank(s) with correct word

Question 6

Mosses contain vascular bundles.
 
  Indicate whether the statement is true or false