Fossil Record and History of Life

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What percentage of all species that ever lived are extinct?

100%

99% (correct)

75%

50%

What is the process by which minerals carried by water are deposited around a hard structure?

Natural Casts

Amber-Preserved Fossils

Permineralization (correct)

Preserved Remains

Which of the following types of fossils records the activity of an organism?

Permineralization

Preserved Remains

Trace Fossils (correct)

Natural Casts

What is the term for a living species that has remained unchanged for tens of millions of years?

Living Fossil Signup and view all the answers

How is the age of a fossil determined?

By comparing its placement with that of fossils in other layers of rock Signup and view all the answers

What is the term for an organism that becomes trapped in tree resin that hardens into amber?

Amber-Preserved Fossils Signup and view all the answers

What is the primary source of energy for anaerobic pathways?

Simple organic compounds and mineral ions Signup and view all the answers

What is the name of the earliest known eukaryote?

Bangiomorpha pubescens Signup and view all the answers

What is the result of the increase in cyanobacteria populations?

Increase in oxygen levels Signup and view all the answers

What is the characteristic that distinguishes eukaryotes from prokaryotes?

Presence of organelles Signup and view all the answers

What is the theory that explains the origin of organelles?

Endosymbiotic Theory Signup and view all the answers

What is the similarity between mitochondria and bacteria?

Size and structure Signup and view all the answers

What is a characteristic of mitochondrial DNA?

It has a few genes (37) Signup and view all the answers

What event occurred at the end of the Paleozoic Era?

The mass extinction of 95% of ocean life Signup and view all the answers

During which era did mammals evolve adaptations to live in various environments?

Cenozoic Era Signup and view all the answers

What is a characteristic of the inner membrane of a mitochondrion?

It resembles a bacterial cell's plasma membrane Signup and view all the answers

What percentage of Earth's history occurred during the Precambrian Time?

90% of Earth's history Signup and view all the answers

What event occurred during the Mesozoic Era?

The roaming of dinosaurs on Earth Signup and view all the answers

What is a suggested way to find a fossil species to investigate if none are found in your area?

Search for a picture of a fossil species on the internet Signup and view all the answers

What is the main criterion for a report with a research depth of 'Excellent'?

Providing thorough research on the chosen fossil species Signup and view all the answers

What is the characteristic of a report with a content clarity of 'Excellent'?

It is exceptionally clear and well-organized Signup and view all the answers

What is the minimum score for a report with 'Fair' research depth?

8 Signup and view all the answers

What aspect of a fossil species is NOT included in the research criteria?

Its habitat Signup and view all the answers

What is the score for a report with 'Good' research depth?

9 Signup and view all the answers

Approximately how long ago did Homo sapiens evolve?

200,000 years ago Signup and view all the answers

What has been on Earth for 3.8 billion years?

Simple cells (prokaryotes) Signup and view all the answers

When did arthropods (ancestors of insects, arachnids, and crustaceans) emerge?

570 million years ago Signup and view all the answers

How long ago did the non-avian dinosaurs die out?

65 million years ago Signup and view all the answers

What is the significance of the activity instructed?

To investigate a specific fossil species in your area Signup and view all the answers

What precaution must be taken when searching for a fossil species?

Go to areas you are familiar with Signup and view all the answers