Evolution Test

Scientist agree that two developments must have occurred for life to come into being: the formation of simple organic molecules important to life and ________. 

• development of prokaryotic cells in early oceans
• organization of molecules into complex organic molecules
• appearance of amino acids, monosaccharides, and lipids
• an atmosphere rich in water vapor, oxygen, and ATP

The Geologic Time Scale begins at the formation of Earth approximately _______ years ago.

• 4.6 thousand
• 46 million
• 4.6 million
• 4.6 billion

Which of the following statements are true about fossils?

• Fossils are usually found in sedimentary rock layers.
• There are many different ways that fossils can be formed.
• Fossil insects that were trapped in ice or hardened into amber.
• All of these

Which of the following fossils are NOT found in sedimentary rock?

• imprints
• frozen mammoths
• amber
• petrified wood

Which fact is the basis for using fossil record as evidence that evolution has taken place?

• In undisturbed layers of rock, the older fossils are found in the deeper layers
• There are fossils of all life-forms to be found in rock layers
• All fossils were formed at the same time.
• Fossils have been shown to provide a complete record of human evolution.

Urey and Miller subjected water, methane, ammonia, and hydrogen to heating and cooling cycles and jolts of electricity in an attempt to _______. 

• determine how the dinosaurs became extinct
• form complex organic compounds
• determine the age of microfossils
• find out how ozone forms in the atmosphere

The flying squirrel of North America closely resembles the flying phalanger of Australia. They are similar in size and have long, bushy tails and skin folds that allow them to glide through the air. The squirrel is a placental mammal, while the phalanger is a marsupial. these close resemblances, even though genetically and geographically separated by great distances, can be explained by___.

• convergent evolution
• divergent evolution
• spontaneous generation
• vestigial structures

Natural processes such as speciation and gradualism provide the genetic basis for _____.

• evolution
• spontaneous generation
• biogenesis
• sexual reproduction

Structures that have a similar evolutionary origin and structure but are adapted for different functions, such as a bat wing and a human arm, are called ____.

• embryological structures
• analogous structures
• homologous structures
• homozygous structure

Natural Selection can best be defined as the _______.

• survival of the biggest and strongest organisms in a population
• elimination of the smallest organisms by the biggest organisms
• survival and reproduction of the organisms that occupy the largest area
• survival and reproduction of the organisms that are genetically best adapted to the environment