6 Questions
Which type of circulatory system involves blood being pumped out of the heart directly to cells and tissues?
Open type
What is the body plan called when an organism can be divided into identical left and right halves in only one plane?
Bilateral symmetry
In which group of animals can a plane passing through the central axis of the body divide them into two identical halves?
Coelenterates, ctenophores, and echinoderms
Which group of animals exhibit diploblastic organization?
Coelenterates
Which of the following is NOT a characteristic of animals exhibiting radial symmetry?
Bilateral symmetry
What is the undifferentiated layer present between the ectoderm and endoderm in diploblastic animals called?
Mesoglea
This quiz covers the two types of circulatory systems - open and closed, along with the categorization of animals based on their symmetry. Test your knowledge on how blood is circulated in different animals and how symmetry is observed in nature.
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