Mutations
Mutations are the initial cause of this in all species
What is Biodiversity? (also accept adaptations/genetic variation)
What are Fossils?
For a group of organisms to be a population they need to be both of these things
What are 1) living in the same place and 2) being of the same species?
(100 points each)
What is Fitness? (Reproductive Success)
This is the set of all genes and alleles in a population.
What is the Gene Pool?
Organisms pass down their _____(mutated/unmutated) DNA.
What is Mutated DNA?
All species on earth have these, indicating that the common ancestor of all life on Earth had these things.
(3 things, 200 points each)
What are:
DNA
RNA
Proteins (made of the same 20 amino Acids)
In nature, populations typically produce ____(more/less) offspring than can survive.
What is more?
This pattern of Natural Selection represents when a ecosystem biases towards individuals on an extreme end of a phenotypic range.
What is Directional Selection?
This describes how common a particular allele is in a population
What is Allele Frequency?
Give an example of trait in some or all humans that is present thanks to a mutation
Great Job!
Two species having organs, limbs, etc. that complete similar tasks while being completely different from each other are an example of this. Bonus points for what this is a sign of.
What are Analogous Structures?
A sign that they evolved to do that task separately.
Being of the same species means that organisms can do this.
What is reproduce?
Bonus points for fertile offspring.
This pattern of natural selection biases towards either extreme of a phenotypic range, resulting in two distinct forms of a species with high fitness.
What is disruptive selection?
Two species having organs/structures that are very similar (ex. similar bones) is a sign of their common ancestor having that trait and an example of this.
What are Homologous Structures?
Mutations that result in traits that give the organism better odds of reproducing are known as this.
What are adaptations?
A more recent this between two species indicates a closer genetic tie.
What is common ancestor?
For speciation to occur, a species requires this rift in its population.
What is a Reproductive Isolation?
This pattern of Natural Selection biases towards individuals in the middle of a phenotypic range, resulting in fewer individuals with traits that fall into extremes
This is the process of one species splitting into two distinct species.
What is Speciation?
What is faster?
Organisms may have these structures, being organs, limbs, or other body parts that serve no obvious purpose, indicating that the species likely has an ancestor that made use of that structure.
What are Vestigial Structures/Organs?
This is when a population, over only a few generations at most, changes from having mostly one phenotype to mostly a different phenotype.
What is Microevolution?
Humans did not evolve from modern apes, describe in words or drawings a more accurate model of human ancestry.
Winning answers indicate that humans and apes evolved from a common ancestor, bonus points for speciation, or referencing reproductive isolation
(max 1000 points for this question)
When scientists study the difference between two different species' fetal stages, they are engaging in this.
What is Comparative Embryology?