Animals III Flashcards
1
Q
What group is the oldest known land animal?
A
Ecdysozoans, specifically Scorpions
2
Q
When was the oldest land animal
A
437 mya Silurian
3
Q
Ecdysis is the shedding of the _________
A
cuticle
4
Q
Cuticles are typically reinforced with _______
A
chitin
5
Q
T/F Nematoda are unsegmented
A
True
6
Q
Tardigrades are sister to what two groups?
A
Ony (Velvet worms) and Arthropods