The systemic circuit is complete when ____

a. oxygen-depleted blood collects in veins
b. oxygen-rich blood collects in veins
c. blood enters the pulmonary veins
d. blood enters the aorta
e. blood enters the right atrium


ANSWER: a

Biology & Microbiology

You might also like to view...

Lederberg and Tatum's experiments demonstrated that

A. bacteria can acquire genetic material from each other. B. bacteria do not release DNA into the environment for other bacteria to take up. C. bacteria must be in physical contact in order for bacteria to exchange genetic material. D. the genetic transfer occurred when the bio+, met+ phe-thr- strain transferred DNA to the bio-met- strain. E. All of these observations were made by Lederberg and Tatum.

Biology & Microbiology

The two long cylinders of spongy tissue lying on top of the penis are called the _____.

A. Bartholin glands B. corpora cavernosa C. corpus spongiosum D. vasa deferentia

Biology & Microbiology

Your child has developed an eye infection with a yellowish discharge.  You predict that this is a case of ________.

A. rubella B. helminth infection C. herpes keratitis D. bacterial conjunctivitis E. trachoma

Biology & Microbiology

Most of the animals alive today are

A) vertebrates. B) invertebrates. C) choanoflagellates. D) really colonies of protist cells.

Biology & Microbiology