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Questions and Answers
What is the main reason arthropods are considered excellent for protection?
What is the main reason arthropods are considered excellent for protection?
- They have a hard exoskeleton of chitin (correct)
- They live in virtually every habitat on earth
- They have numerous sense organs
- They are very active and energetic animals
Which characteristic allows arthropods to have infinite possibilities for adaptive modifications?
Which characteristic allows arthropods to have infinite possibilities for adaptive modifications?
- Well-developed head (cephalization)
- Hard exoskeleton of chitin
- Jointed feeding appendages
- Segmented body (correct)
What percentage of all known animals does the phylum Arthropoda include?
What percentage of all known animals does the phylum Arthropoda include?
- 50%
- 1%
- 33%
- 66% (correct)
What is the distinctive characteristic that allows some arthropods to fly over 30 mph?
What is the distinctive characteristic that allows some arthropods to fly over 30 mph?
Which feature enables arthropods to be the only invertebrates capable of flying at high speeds?
Which feature enables arthropods to be the only invertebrates capable of flying at high speeds?
What is the estimated ratio of arthropods to humans in terms of individuals?
What is the estimated ratio of arthropods to humans in terms of individuals?
Which phylum is mentioned as having many fossils and being one of the most ancient?
Which phylum is mentioned as having many fossils and being one of the most ancient?
Which animal species has remained unchanged and is considered one of the oldest on earth?
Which animal species has remained unchanged and is considered one of the oldest on earth?
When did arthropods become the dominant lifeforms and start to dominate the fossil record?
When did arthropods become the dominant lifeforms and start to dominate the fossil record?
What event is mentioned as occurring shortly after spider-like and centipede-like animals appeared?
What event is mentioned as occurring shortly after spider-like and centipede-like animals appeared?
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