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WorksheetsHistory of Life: Phylogenetics and Intro to Diversity of Life
Total questions: 80
Worksheet time: 54mins
The study of ancestor and descendant relationships...
(a)
The study of evolutionary history, the relationship of organisms or groups, and groups of organisms
(a)
A visual representation of phylogeny
Is a visual HYPOTHESIS
Has roots (outgroups) and unrooted groups
(a)
What is a root on a phylogenetic tree?
What is a branch on a phylogenetic tree?
What is a sister taxa on a phylogenetic tree?
What is a basal taxa on a phylogenetic tree?
What does it mean to be polytomic on a phylogenetic tree?
What are some limitations to a phylogenetic tree?
Ancestral groups can still thrive
Orders of traits are informative
Close proximity does not equal look alike
Branches are not time scaled
Organize life based on evolutionary relatedness
(a)
An internationally/universally recognized way to organize organisms through unique and stable methods
(a)
Related Organisms
(a)
Who was the founder of the hierarchical system, binomial nomenclature, and scientific naming?
De Lemarck
List the Hierarchical Classification System in Order:
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
What are some domains in taxonomy?
What are some kingdoms in taxonomy?
Why do we study phylogeny?
What is cladistics in phylogeny?
What is a Clade in phylogenetics?
Is polyphyletic
Is paraphyletic
Is often monophyletic
What is the difference between monophyletic and paraphyletic?
What is the difference between paraphyletic and polyphyletic?
What does it mean to be paraphyletic?
What does it mean to be polyphyletic?
What are some examples of paraphyletics?
What are some examples of polyphyletics?
What does it mean to be plesiomorphic?
What does it mean to be synapomorphic?
What are some examples of plesiomorphs?
What are some examples of synapomorphs? (Is dependent on reference!)
What does it mean to be parsimonious in phylogenetics?
List some characteristics or features of ANIMALS:
What is Radial symmetry in biology?
What is Bilateral Symmetry in biology?
What are some directional terms in bilateral symmetry in biology?
Cranial (head)
Caudal (tail)
Dorsal (back) and Ventral (belly)
Proximal (closer to point) and Distal (further from point)
Medial (midline) and Lateral
What are the planes of symmetry for bilateral symmetry in biology?
What does it mean to be a Acoelomate in biology?
What does it mean to be a Pseudocoelomate in biology?
What does it mean to be a Eucoelomate in biology?
Organism with a true coelom or body cavity
How are protostomes different from deuerostomes in embryonic development?
They form the mouth first then the anus
They form the anus first before the mouth
They are formed from a spiral and determinate cleavage pattern
The nerve cord is hollow
The nerve cord is solid and ventral
What are some examples of deuterostomes?
What are some examples of protostomes?
What does it mean to have an incomplete digestive system?
They typically have ONE opening
They typically have TWO openings
They typically have a vascular nutrient transport system
Their transport system is in congress with the cardiovascular system
You have no digestive system
What are characteristics of a Complete Digestive System?
Vascular nutrient system
One opening
Nutrient transport system is in congress with cardiovascular system
A tube within a tube
Two openings
The study of the fossil record and inferring life, climate, and environment from historical evidence
(a)
What is the Law of Superimposition in paleontology?
What is continental drift?
Examples:
Pangaea - 252 mya
Laurasia and Gondwana - 135 mya
Current Continents - 66 mya
What are the four eons?
Hadean
Archaean
Paleozoic
Proterozoic
Phanerozoic
What are the four eras??
Neo-Proterozoic
Proterozoic
Paleozoic
Mesozoic
Cenozoic
What creates a geologic time boundary?
Catastrophic change
Extinction Level Events
The Hadean, Archaean, and Proterozoic Eons are best known for...
What eon is best known for the proliferation (diversity) of life?
The phanerozoic eon contains what eras?
Roughly, what time did the Earth form?
During what eon did the first single-celled organism originate? (Hint: 3.5 bya)
What eon did the oxygen revolution occur (2.7 bya) which was caused by cyanobacteria increasing photosynthesis?
Archaean Eon
What eon did the first unicellular Eukaryotes arise (1.8 bya)?
It is also believed that endosymbiosis, the intake of mitochondria and chloroplasts, also occured during this period
Archaean Eon
What eon saw the introduction of multicellular organisms (1.3 bya), sexual reproduction (1.2 bya), and protist diversification (1.0 bya)?
Archaean eon
What types of multicellular organisms were most prevalent during the Proterozoic Eon?
Algae, sponges, and simple animals like cnidarians
Define the Cambrian Explosion (535 mya)...
What was introduced during the Cambrian explosion that dramatically changed the course of evolution?
The introduction of soft-bodied organisms
The introduction of present-day phyla
The introduction of larger species
The introduction of prey
The introduction of predators
What eon did the cambrian explosion occur?
Proterozoic eon
Archaean eon
What major event also occurred during the Phanerozoic eon?
Land colonization
What are some characteristics or events of the Cambrian period (541 mya)?
Land colonization
Marine algae flourish
Adaptive radiation of all life
The first invertebrates arise
The first chordates arise
What are some characteristics of the Ordovician (485 mya)?
Jawed fish arrive
Jawless fish arrive
Nonvascular plants arrive
First chordates
Colonization of land
What are some characteristics of the Silurian (444 mya)?
Marine Algae flourish
Nonvascular plants appear
Seedless vascular plants arrive (Tree ferns and horsetails)
Jawed fish appear
Jawless fish appear
What are some characteristics of the Devonian Period (419 mya)?
Large insects and signs of flight appear
First insects and amphibians appear in fossil record
First reptiles appear
Amphibians decline
Known as the age of fish
What are some characteristics of the Carboniferous period (359 mya)?
Large insects and flight appear
Reptiles diversify
Known as the age of amphibians
Known as the age of fish
First reptiles appear
What are some characteristics of the Permian period (299 mya)?
Gymnosperms diversify (non-flowering trees)
Flowering plants diversify
Reptiles begin to diversify rapidly
First mammals appear
Amphibians start to decline
What is the Mesozoic Era known for (252 mya - 66 mya)?
What are some characteristics of the Triassic period (252 - 201 mya)?
First mammals and dinosaurs appear
Birds appear
Corals and molluscs dominate oceans
Gymnosperms dominante
Flowering plants appear
What are some characteristics of the Jurassic period (201 - 145 mya)?
Flowering plants dominate
Mammals dominate
Dinosaurs dominate
Birds Appear
Flowering plants appear
What is the Cretaceous period known for (145 - 66 mya)?
Mammals dominate
Flowering plants dominate
Modern insects appear
Amphibians dominate
Placental mammals appear
What is the Cenozoic Era (65 mya) best known for?
What is the Eocene epoch see for the first time (56 mya)?
Canines
Felines
Reptiles
Fish
Primates
What is the Miocene epoch best known for (23 mya)?
The introduction of modern animal groups
What is the Pliocene epoch best known for (5.3 mya)?
Modern mammal diversification
Species such as Megalodon and Livyatan
What is the Pleistocene epoch best known for (2.6 mya)?
What is the holocene known as (12,000 ya > Present)?
Age of Amphibians
Age of Fish
Age of Reptiles
Age of Mammals
Age of Humans
What are the Five Known Mass Extinctions?
Would you consider the present-day to be the start of another mass extinction?
