Question

Iguanodon _____________.

A. had a horn on its nose
B. was discovered by Mary Anning
C. was the first dinosaur described by a scientist
D. was a theropod

Answer 1

Iguanodon was one of the first dinosaurs described by a scientist, which is the correct answer to the question. It did not have a horn on its nose, was not discovered by Mary Anning, and was not a theropod, but rather belonged to the Ornithischia group.

Step-by-step explanation:

The Iguanodon was a significant dinosaur for paleontology and carries a number of interesting traits that researchers and fossil enthusiasts find fascinating. When answering the question about the Iguanodon, we can examine each option provided:

1. Iguanodon did not have a horn on its nose; this is a characteristic of a different group of dinosaurs known as ceratopsians, such as the Triceratops.
2. Iguanodon was not discovered by Mary Anning; she is better known for finding the first Jurassic marine reptile fossils.
3. Iguanodon was indeed one of the first dinosaurs to be described by a scientist, with credit often given to Gideon Mantell in the early 19th century.
4. Iguanodon was not a theropod; it belonged to the Ornithischia or "bird-hipped" dinosaur group.

The correct answer is C. Iguanodon was the first dinosaur described by a scientist.