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Spiders and insects have an excretory system composed of
Q5: The exoskeleton of insects is<br>A)very soft and
Q8: Internal buds of freshwater sponges that can
Q15: Why do zoologists not have a well-accepted
Q33: Discuss the derived characters shared by birds
Q34: Protist reproduction<br>A)is always asexual and usually binary
Q37: Platyhelminths are<br>A)carnivores in most cases.<br>B)nearly all marine
Q46: The _ muscle elevates the bird's wing
Q49: Haploid cells that are unequal in size,such
Q51: The group designation _ was formerly considered
Q58: Which association of lineages and eventual derived