5 Questions
What marks the earliest fossil appearance of all major groups of living animals plus some groups that are only known from fossils?
Cambrian explosion
What is a group of animal species that share the same level of organizational complexity known as?
Grade
What are the grades of organization based on general features of morphology and development?
Body plans
What are the major body plans known to have appeared during the Cambrian explosion?
All major body plans
What characterizes a protoplasmic grade of organization?
Protists are the simplest eukaryotes
Test your knowledge of animal body plans and diversity with this quiz on the architectural plan of animals. Explore the appearance of major body plans during the Cambrian explosion and the impact on future adaptational variants. Delve into the morphological diversity of animals and expand your understanding of the animal kingdom.
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