Evolutionary History
What are dinosaurs?
The presence or absence of this cell structure determines whether a cell is prokaryotic or eukaryotic. It is commonly known as the "brain" of the cell.
What is the nucleus?
This period gives its name to a popular movie franchise that ironically contains many animals that did not exist during it.
What is the Jurassic Period?
All top 10 overall fastest animals belong to this class of animals.
What are birds(class Aves)?
What organism exists at the base of the phylogenetic tree? What was life like at the beginning of life's existence?
What is the Last Universal Common Ancestor problem?
This group of animals was the first to live on land.
What are arthropods(invertebrates)?
Only plants have this unique structure that helps to provide them with food. This structure is responsible for the green color of plants' leaves, because it contains chlorophyll.
What is a chloroplast?
This period is known for its dinosaurs, such as Tyrannosaurus Rex and Ankylosaurus. This period also saw the diversification of flowering plants. It is also known for being the period that saw the extinction of the dinosaurs.
What is the Cretaceous Period?
The world's fastest horse breed comes from this country.
What is the United States of America?
This unsolved problem is named after a prominent nuclear physicist who was involved in inventing the atomic bomb and has an element named after him. Where are all the aliens?
What is the Fermi Paradox?
One of the largest unanswered questions in all of life science, this event's causes and meaning are still not fully known. This event began the history of life.
What is abiogenesis?
This cell structure, present in all cells, helps to regulate what enters and exits the cell and protects it from pathogens.
What is a cell membrane?
During this period, oxygen levels were much higher, which allowed for the existence of relatively large terrestrial arthropods. This period is named for the large deposits of coal created during it.
What is the Carboniferous Period?
The world's largest amphibian.
What is the Chinese Giant Salamander?
How did animal and plant cells come to acquire their current structure? How did organelles such as mitochondria become part of the cell?
What is symbiogenesis?
These organisms, named after their distinct blue-green color, caused the Great Oxygenation Event that created Earth's freely available atmospheric oxygen.
What are cyanobacteria(blue-green algae)?
This cell structure serves to store nutrients, water, and waste products.
What is a vacuole?
This period saw an explosion of the diversification of life, including the appearance of arthropods, molluscs, sponges, and worms.
What is the Cambrian Period?
This large reptile has the highest bite force ever recorded.
What is the saltwater crocodile?
What is the handedness problem?
What are artiodactyls?
Found in eukaryotic cells, this organelle packages proteins into vesicles to be sent to their destination. It was one of the first organelles to be discovered.
What is the Golgi apparatus?
This period saw the evolution of tetrapods and the spread of vascular plants across land.
What is the Devonian Period?
This animal, the third-fastest of all animals, is named for its speed.
What is the white-throated needletail swift(swift)?
This unsolved problem has to do with a violation of the Competitive Exclusion Principle. The Competitive Exclusion Principle states that complete competitors cannot coexist. Why are plankton so diverse, when they all occupy the same ecological niche?
What is the Paradox of the Plankton?