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Questions and Answers
How many eyes does the horseshoe crab have on top of its prosoma?
How many eyes does the horseshoe crab have on top of its prosoma?
- Ten (correct)
- Five
- Four
- Six
Which part of the horseshoe crab is often mistaken as a stinger but is actually used for steering and flipping?
Which part of the horseshoe crab is often mistaken as a stinger but is actually used for steering and flipping?
- Telson (correct)
- Prosoma
- Chelicera
- Opisthosoma
How many pairs of appendages does the horseshoe crab have on the underside of its prosoma for walking?
How many pairs of appendages does the horseshoe crab have on the underside of its prosoma for walking?
- Five (correct)
- Two
- Six
- Four
Which order of Merostomata includes horseshoe crabs like Carcinoscorpius rotundicauda and Tachypleus tridentatus?
Which order of Merostomata includes horseshoe crabs like Carcinoscorpius rotundicauda and Tachypleus tridentatus?
How many fossil species from the Paleozoic Era are included in the extinct order Eurypterida of Merostomata?
How many fossil species from the Paleozoic Era are included in the extinct order Eurypterida of Merostomata?
What is the function of the telson on a horseshoe crab?
What is the function of the telson on a horseshoe crab?
Which body segment of the horseshoe crab is covered by a dorsal carapace?
Which body segment of the horseshoe crab is covered by a dorsal carapace?
How many pairs of appendages does the horseshoe crab have on the underside of its prosoma for walking?
How many pairs of appendages does the horseshoe crab have on the underside of its prosoma for walking?
Which order of Merostomata includes the extinct Gigantostraca, with 200 fossil species from the Paleozoic Era?
Which order of Merostomata includes the extinct Gigantostraca, with 200 fossil species from the Paleozoic Era?
What is the primary purpose of the chelicera in a horseshoe crab?
What is the primary purpose of the chelicera in a horseshoe crab?
How many body segments are present in a horseshoe crab?
How many body segments are present in a horseshoe crab?
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