The ____________________ system is effective because it has a ...

[ericka1]

The ___________________ _ system is effective because it has a means of recognizing any type of foreign tissue or organism that invades the body.
 
  Fill in the blank(s) with correct word

Question 2

Cows can be implanted with ___________________ __ that have been genetically altered to possess a gene that produces a certain drug through the mammary gland.
 
  Fill in the blank(s) with correct word

[Jmfn03]

Answer to Question 1

immune

Answer to Question 2

embryos

[ericka1]

Thanks for the timely response, appreciate it

[Missbam101]

Excellent