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Which theory on the origins of life suggests that all living beings were created by God?

Creationism (correct)

Abiogenesis

Endosymbiotic Theory

Evolution

What characteristic differentiates a living organism from a nonliving object?

Response to stimuli (correct)

Inorganic composition

Passivity to change

Absence of metabolism

Where were the oldest traces of fossils discovered, dating back to 3.5 billion years ago?

Europe

South America

.North America

Western Australia (correct)

What is the process by which stromatolites were formed?

Growth of layer upon layer of single-celled microbes Signup and view all the answers

Which theory suggests that life came from inorganic compounds or chemicals?

.Abiogenesis Signup and view all the answers

What is the estimated age of Earth based on radiometric dating of the oldest rocks on Earth?

.4.54 billion years old Signup and view all the answers

What genetic phenomenon is responsible for the change in allele frequency due to random sampling of organisms?

Genetic Drift Signup and view all the answers

What can lead to the elimination of an allele from a population by chance?

Population Bottlenecks Signup and view all the answers

Which event can drastically reduce a population's genetic diversity?

Population Bottlenecks Signup and view all the answers

When does the Founder Effect occur?

When a small group breaks off from a larger population to establish a new population Signup and view all the answers

What is the primary factor leading to competition for survival due to overproduction of offspring?

Variation Signup and view all the answers

Which human-directed selection process has led to the creation of great varieties of animal breeds?

Artificial Selection Signup and view all the answers

What type of barrier prevents mating due to differences in size or shape of reproductive parts?

Mechanical Isolation Signup and view all the answers

Which type of isolation involves potential mates living in the same area but occupying different habitats?

Ecological Isolation Signup and view all the answers

In which type of isolation do gametes come into contact but fertilization does not occur?

Gametic Isolation Signup and view all the answers

What is the term for the barrier that involves differences in mating behavior such as different courting rituals?

Behavioral Isolation Signup and view all the answers

Which type of isolation results in the production of a sterile offspring?

Hybrid Sterility Signup and view all the answers

What does temporal isolation refer to?

Mating at different times Signup and view all the answers

Why does Ellis-Van Creveld Syndrome occur at high frequency in the Lancaster Amish gene pool?

Caused by both the founder effect and inbreeding Signup and view all the answers

What is one of the common features of a population that provides improved functions?

Adaptation Signup and view all the answers

What do closely related individuals tend to share more of?

Harmful recessive alleles Signup and view all the answers

Which factor contributes to a high incidence of genetic disorders in inbred populations?

Inbreeding Signup and view all the answers

What causes natural selection to occur over generations?

Change in allele frequency Signup and view all the answers

What may lead to the exchange of genes between two populations?

Movement of genes into or out of a population Signup and view all the answers