1. Evidence for group behavior in sauropods is provided by ___________. A. nests of eggs B. trackways C. mass death asse

[answerhappygod]

1. Evidence for group behavior in sauropods is provided by___________.
A. nests of eggs
B. trackways
C. mass death assemblages
D. trackways AND mass death assemblages
2. Sauropod diversity during the Cretaceous was mostly limitedto _______________. A. None of these are correct
B. Eurasia
C. the southern continents
D. North America
3. The sudden reappearance of sauropod dinosaurs in NorthAmerica about 70 million years ago probably reflects_____________.
A. convergence
B. biases in collecting
C. immigration from South America
D. re-evolution
4.The largest sauropod so far described is Dreadnoughtus. Itweighed as much as ___ tons and was more than ___meters long.
A. 50, 40 B. 100, 50 C. 10, 20 D.75, 100
5. Many sauropods had extremely long tails. It is theorized thatthey used these tails for __________.
A. defense
B. communication
C. sexual display
D. all of the given answers are correct