Multiple Choice
A circulatory system that keeps blood confined within vessels after leaving the heart is
A) a closed circulatory system.
B) a gastrovascular cavity.
C) an open circulatory system.
D) an incomplete circulatory system.
E) a complete circulatory system.
Correct Answer:
Verified
Correct Answer:
Verified
Q1: A lancelet is<br>A)an invertebrate chordate.<br>B)a vertebrate.<br>C)an echinoderm.<br>D)an
Q4: Flatworms are very thin and can exchange
Q9: The embryonic germ layer of tissue in
Q11: A mollusk with multiple arms for locomotion
Q37: Which of the following is a characteristic
Q40: All cnidarians share the ability to do
Q40: Mollusks that have two-part hinged shells are
Q46: Hominids include<br>A) humans.<br>B) orangutans.<br>C) chimpanzees.<br>D) gorillas.<br>E) All
Q58: The free-swimming tunicate larva resembles a tadpole.Once
Q85: An internal membrane in chordates that protects