An animal with an open circulatory system ____
a. lacks a continuous network of blood vessels that contain the blood at all times
b. can have only one heart
c. has two separate vascular circuits
d. is able to distribute substances faster than a closed system
e. can grow larger than one with a closed circulatory system
ANSWER: a
You might also like to view...
The A horizon contains little, if any organic matter
a. True b. False
The molecular defect in sickle cell anemia is known to reside at the position ____________________
of the ____________________ globin Fill in the blank(s) with the appropriate word(s).
The area of the retina that lacks photoreceptive cells is called the
A viroid is a(n)
A) complete, infectious virus particle. B) infectious piece of RNA without a capsid. C) capsid without nucleic acid. D) provirus. E) infectious protein.