Exam 15: Life of the Mesozoic Era

The mammal-like reptiles at the end of the Paleozoic were ____.

All feathered dinosaurs could fly.

The first vertebrates to achieve flight were ____________________.

Any vertebrate (such as amphibians and reptiles) that depends on external heat to regulate body temperature is said to be ____.

Discuss the origin and development of mammals during the Mesozoic.

Faunas became more diverse during the breakup of Pangaea because ____.

True mammals evolved from ____________________, which were the most mammal-like of group of ____________________, which were mammal-like reptiles.

The primitive archosaurs were the ancestors to both modern birds and crocodiles.

Placental mammals give birth to live young.

Dinosaurs are examples of ____.

How does the breakup of Pangaea influence the Mesozoic distribution and development of plants and animals?

The cynodonts were the direct ancestors of early mammals.

Mammal and reptile fossils can be differentiated based on ____.

Compare and contrast land plant communities of the Triassic and Jurassic with those of the Cretaceous.

The theropod dinosaurs were the ancestors to the modern reptile groups, including snakes, lizards and turtles.

Typical reptiles are endotherms.

The organisms that replaced Paleozoic corals as the major reef builder in the Mesozoic were ____.

Which oldest positively identified fossil bird had feathers, but retained many reptile characteristics?

Dinosaurs evolved from the Saurischians.

The Mesozoic Era is called the "Age of Reptiles" because ____.