The Navajo Sandstone, such as that exposed at Zion National Park in Utah, is evidence of a ________ environment during the Jurassic Period in the western United States.
A) beach
B) continental shelf
C) lacustrine
D) desert
Question 2
Which of the following organisms is defined as a primitive, single-celled organism that lacks separation between the nucleus and the rest of the cell?
A) Eukaryote
B) Prokaryote
C) Brachiopod
D) Bryozoan
E) All of the above
