True-False

An acetabulum with an open medial wall, that is, a hole completely through the hip socket where the head of the thigh articulates with the hips, is one of the major characteristics of dinosaurs.

One of the major characteristics of dinosaurs is an acetabulum with an open medial wall, that is, a hole completely through the hip socket where the head of the thigh articulates with the hips.

The kind of bone found at the ends of long bones is mostly compact bone.

Compact bone is the kind of bone mostly found at the ends of long bones.

The tibia and fibula hindlimb bones are equivalent to the ulna and radius forelimb bones.

The ulna and radius forelimb bones are equivalent to the tibia and fibula hindlimb bones.

Paleontologists know nothing about what the soft tissue of dinosaurs was like.

What the soft tissue of dinosaurs was like is completely unknown to paleontologists.

The most common problem in naming a new dinosaur is synonomy, assigning a different species name to a dinosaur already given another name.

Synonomy, assigning a different species name to a dinosaur already given another name, is t he most common problem in naming a new dinosaur.

Birds evolved from a theropod ancestor.

A theropod ancestor gave rise to birds.