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- 1. Multiple Choice
Describes an animal that lacks a backbone.
vertebrate
invertebrate
chordate
vertebrae
- 2. Multiple Choice
Long supporting rod that runs through the body just below the nerve cord is the...
pharyngeal pouches
vertebrae
notochord
dorsal hollow nerve cord
- 3. Multiple Choice
Fish, amphibians, reptiles, birds, and mammals are all chordates that are also...
invertebrate
notochord
vertebrate
vertebral column
- 4. Multiple Choice
All ______ have a dorsal hollow nerve cord during one stage of their lives.
invertebrates
chordates
vertebrates
notochord
- 5. Multiple Choice
Which is NOT a characteristic of animals?
They are heterotrophs.
They are multicellular.
Their cells contain a nucleus.
Their cells have cell walls.
- 6. Multiple Choice
Which body system do animals use to eliminate waste, such as ammonia?
digestive system
nervous system
musculoskeletal system
excretory system
- 7. Multiple Choice
The nervous systems of complex animals gather information using cells called
pharyngeal pouches.
receptors
nerves
notochord
- 8. Multiple Choice
Chordates have all the following characteristics during at least one stage of life EXCEPT:
notochords
pharyngeal pouches.
cell walls.
tail
- 9. Multiple Choice
The acquisition of nutrients and their distribution to body systems is a function of the
digestive and circulatory systems.
respiratory and circulatory systems.
excretory and circulatory systems.
respiratory and digestive systems.
- 10. Multiple Choice
Which of the following is a characteristic of all chordates but is not found in invertebrates?
a notochord
four legs
a circulatory system
a skeleton
- 11. Multiple Choice
Which of the following is NOT a characteristic of animals?
the ability to make their own food
ability to move
eukaryotic cells
cells that lack cell walls
- 12. Multiple Choice
Animals often respond to information processed by their nervous system by moving around, using their
circulatory system
excretory system
musculoskeletal system
digestive system
- 13. Multiple Choice
A system in which the result of a process helps to limit the process itself is called...
feedback inhibition
homeostasis
nervous system
brain
- 14. Multiple Choice
Small animals will allow oxygen to _____ through their skin.
breath
respire
diffuse
infuse
- 15. Multiple Choice
Most animals reproduce
sexually by producing diploid gametes
asexually by cloning
sexually by producing haploid gametes
asexually by fusion
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