Selections
When we say that the environment an animal lives in, is "selecting" the fittest individuals to survive and reproduce... We are talking about?
What is Natural Selection
This is sometimes the first step towards a new species. Some individuals leave their original population and travel somewhere new and start a new population separately
What is the founder effect
When only the best individuals survive because they're faster, stronger, smarter, whatever it is. We call this
what is survival of the fittest
If all species originated from one ancestor then this is known as
what is common descent
When humans select for traits in a species, this is
What is artificial selection
When two individuals cannot breed and produce fertile offspring for whatever reason, this is known as
What is reproductive isolation
This is shared genetic information between a single population
gene pool
if fossils of the same species show up on two different continents. we can assume that
They used to be together as a single continent and then it divided
When a trait is successful in a species only because it attracts mates, this is
sexual selection
The courtship behavior of two individuals isn't the same and they won't breed
What is Behavioral Isolation
The different ways a trait can be expressed like with different colors of hair
Variation
A chart of sorts that displays the evolution and ancestry of species
what is the tree of life or a phylogenetic tree
When we use a graph to display the survival rate with the trait variation (small beak, medium beak, large beak) and we find that individual with the medium beak are more successful for example this is known as
What is Stabilizing Selection
A river for example separates a population into two, now the can't reach each other to breed
What is geographic isolation
Similar to a variation, but with this, there was a mistake in the replication of DNA. This could be good or bad depending on how it affects the individuals survival. This odd change in DNA is known as
What is a mutation
If two animals are very similar like Darwin's finches, then we can assume they have a very recent common
What is ancestor
Looking at a graph that shows survival rate compared with trait variations (big, medium, small beaks) and we see one extreme is being selected for like big beaks, this is
what is directional selection
The breeding seasons for a population begin to change and now they can't reproduce at the same time
What is Temporal isolation
If a mutation or a variation becomes very successful then it is an
What is an adaptation
We can use fossils to determine ancestry of species today, true or false
what is true