(Q).
Q: What kind of anatomical structure consists of several types of tissues that together carry out particular functions? Choices: - valve - frame - system - organ A:
(A).
organ

(Q).
Q: Historically, certain bacteriophages have also been used as cloning vectors for making what? Choices: - specific libraries - diverse libraries - ultraviolet libraries - genomic libraries A:
(A).
genomic libraries

(Q).
Q: What system of organs delivers blood to all cells of the body? Choices: - gastrointestinal - respiratory - integumentary - cardiovascular A:
(A).
cardiovascular