Question

Jurassic dinosaurs _____________.

A. included the largest land animals of all time
B. were mostly duckbills
C. were small and bipedal
D. were prosauropods and fabrosaurs

Answer 1

Dinosaurs were a diverse group of reptiles that included the largest land animals of all time. Some were quadrupeds while others were bipeds. The dinosaurs that were ancestors of birds were likely endothermic.

Step-by-step explanation:

Dinosaurs were a diverse group of terrestrial reptiles that included the largest land animals of all time. Some dinosaurs were quadrupeds, while others were bipeds. They laid eggs and had various diets, with some being carnivorous and others being herbivorous. The dinosaurs that were the immediate ancestors of birds were likely endothermic, similar to modern birds.