Exam 14: The Origin and History of Life

How might multicellular organisms have arisen?

The Burgess Shale fossils are from the:

Hominids include:

The Primate order arose about:

Mitochondria arose by endocytosis of ______.

The early report that Stanley Miller had created "Life in a Test Tube" in his prebiotic simulations was correct.

The theory that complex organisms could arise suddenly from the nonliving was called "The theory of Spontaneous Generation."

Which of the following allowed Homo sapiens to develop complex cultures unlike other members of the Homo genus?

Hominines include:

Placental mammals appeared during the:

The earliest cells probably originated about 3.5 billion years ago.

The three periods of the Mesozoic era in sequence from most ancient to most recent are:

Clays often have charged surfaces.How may this have been important in the formation of organic macromolecules?

During the first 5-600 million years on Earth the atmosphere was primarily methane,ammonia,and hydrogen,much like other planets in our solar system.How would these conditions favor the formation of biological molecules?

Scientists use mitochondrial DNA to track the migration of humans across the planet.After a group migrates away from their ancestral homeland,any mutations that occur are not mixed with those left in the ancestral population.Based on this,mitochondrial DNA samples taken from ____ would have the most unique mutations,representing the most recent population to migrate to a new area.

The "Age of Dinosaurs" lasted about 120 million years and included the:

Advantages of bipedalism include:

The endoplasmic reticulum,Golgi body,and other membranous organelles of cells might have formed by numerous infoldings of the cell's outer membrane.

Ediacaran organisms:

The first vascular plants evolved during the: