The Beginnings
Classification & Taxonomy
Natural Selection & Evolution
Evidence for Evolution
Grab Bag
100
Life most likely began an earth how long ago?
Most likely 3.8 billion years ago (Between 3.5 and 4 billion years)
100
Tigers are in the family Felidae and have the scientific name Panthera tigris. What is the genus of the tiger?
Panthera
100
Who is the coined the father of evolution?
Charles Darwin
100
What is a vestigial organ?
An organ or body part no longer used by an animal and is slowly disappearing through evolution.
100
Even if animals look similar but cannot reproduce with one another, that means they are separate what?
species
200
What were most likely the first organisms to develop on earth?
Simple single celled organism. (Double points for stating anaerobic, heterotrophic single celled organisms.)
200
Why should scientists use scientific names for organism and not common names?
Misleading or confusing or across language barriers
200
What do we call differences in members of the same species?
Variations
200
How old are some of are eeliest fossils of single celled organisms?
Roughly 3 billion years old
200
Describe what an adaptation is.
A characteristic that makes an organism better suited to reproduce in its environment.
300
Oxygen appearing in the atmosphere most likely accounted for what type of organism evolving?
Autotrophs (plants)
300
Which species is bird C?
Osprey
300
Explain a source of variation within an organism.
Meiosis, mutations, sexual reproduction...
300
What evidence is used to fill in gaps or missing links within evolution?
Fossils!
300
Which characteristic is used in the dichotomous key to distinguish between birds B and C?
the stripe on the head
400
The presence of oxygen in the atmosphere allowed what type of organism to evolve?
Multicellular (aerobic) organisms.
400
Which two animals are most closely related?
Canis familiaris and Canis Lupus
400
Identify one physical adaptation represented in the diagram that helps the rabbit survive in its environment. Describe how this adaptation helps the rabbit to survive.
400
How can we use DNA to compare how close a species is related to another species?
You can see how similar the DNA is - how many base pairs match up. The more that match, the more closely related the species!
400
Why was discovering the tiktaalik fossil so important?
~ Teacher's call ~ Its extraordinary blend of gills, scales, fins and lungs, combined with a movable neck, sturdy ribcage and crocodile-like head, placed Tiktaalik half way between fish and the earliest four-legged land animals.
500
Describe the primordial soup theory.
~ Teacher's call ~ Ocean, abundant simple gasses or organic elements, lightening and energy, creates the many simple organic compounds.
500
After Domain, what are the next seven levels of classification?
Kingdom, Phylum, Class, Order, Family, Genus, Species
500
Explain the term "survival of the fittest" when speaking of natural selection?
Whatever traits that enable an organism to be the most likely to pass on its genes make it the fittest - not simply being strong or fast or smart.
500
These structures share the same bone structure, embryonic development, and have different functions. What are they, and how are they evidence for evolution?
Homologous structures. They support the idea of animals evolving from a common ancestor because the bones are the same where as the bones have tweaked over time due to natural selection to do different functions, but they have the same bones still!
500
Briefly explain the process of how natural selection selects "for" or "against" a trait of an animal?
If the trait is helpful, it will be selected for because it might help the organism reproduce, and if it is harmful, it might be selected against because it could prevent the organism reproducing.