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BIO 1201 Practical QUESTIONS AND ANSWERS

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BIO 1201 Practical QUESTIONS AND ANSWERS Fish class name Actinopterygii Actinopterygii meaning "Fin-rayed fish," meaning they have fins and long rays of bone Fish or Shark: Stiff articulating pectoral fins, cannot back up Shark Fish or Shark: Pectoral fins do articulate, allowing them...

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  • July 21, 2024
  • 11
  • 2023/2024
  • Exam (elaborations)
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BIO 1201 Practical QUESTIONS AND ANSWERS


Fish class name
Actinopterygii
Actinopterygii meaning
"Fin-rayed fish," meaning they have fins and long rays of bone
Fish or Shark: Stiff articulating pectoral fins, cannot back up
Shark
Fish or Shark: Pectoral fins do articulate, allowing them to back up
Fish
Fish or Shark: Intestines are straight, have a spiral valve to increase surface area
Shark
Fish or Shark: Intestines loop back and forth
Fish
Fish or Shark: Internal fertilization
Shark
Fish or Shark: Relatively few offspring
Shark
Fish or Shark: Skeleton made of bone
Fish
Fish or Shark: External fertilization
Fish
Fish or Shark: Well-developed at birth; low mortality rate
Shark
Fish or Shark: Skeleton made of cartilage
Shark
Fish or Shark: High fecundity (egg production)
Fish
Fish or Shark: Heavier, less flexible skeleton

, Fish
Fish or Shark: Skeleton not as strong
Shark
Fish or Shark: Poorly developed larvae with high mortality rate
Fish
Fish or Shark: Lighter skeleton (better buoyancy)
Shark
Fish or Shark: Stronger skeleton
Fish
Fish or Shark: More flexible skeleton
Shark
Fish or Shark: More negatively buoyant skeleton
Fish
Fish or Shark: Hydrodynamic body plan for better buoyancy
Shark
Fish or Shark: Gas-filled sac for buoyancy
Fish
Fish or Shark: Can ascend rapidly
Shark
Fish or Shark: Can remain stationary in water column
Fish
Fish or Shark: Cannot ascend rapidly
Fish
Fish or Shark: Has lipid-filled liver for buoyancy
Shark
Fish or Shark: Has two-chambered heart
BOTH
Fish or Shark: Must swim to maintain buoyancy
Shark
Fish or Shark: Heterocercal caudal fin
Shark

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