Practice question
Question
Which of the following groups of animals is exclusively marine?
Explanation
All echinoderms, such as starfish and sea urchins, are exclusively marine animals.
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AIM To study of prepared pedigree charts of genetic traits such as rolling of tongue, blood groups, widow's peak and colour blindness. PRINCIPLE Pedigree analysis is study of inheritance of traits through family history over generations. Standard symbols are used to represent mal...
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