Lesson 1
What is a species?
A group of similar organisms that can mate and reproduce offspring, that can also mate and reproduce.
Only individuals with a desired trait are bred describes what type of "selection"
Artificial Selection
What is one way a mutation could increase an organisms fitness?
A mutation that leads to an organism blending in better with their environment.. other possible answers as well.
Small gradual changes over time..
Microevolution
The common ancestor that all organisms share is called?
LUCA
Who created the scientific theory of evolution?
Charles Darwin
There are 3 factors that play a role in natural selection, what are they?
- Over production
- Variation
- Competition
occurs when individuals with new alleles physically move from one population to another.
DD: Does this increase or decrease genetic variation?
Gene Flow
DD: increase
Similar bone structure that is inherited by a common ancestor is known as..
Homologous structures.
Scientists believe bacteria evolved to become what 2 organelles?
Mitochondria and Chloroplasts
Any difference between individuals of the same species is known as...
Variation.
A mutation is any change to an organisms....
Genetic Material
What 2 things does an organisms "fitness" represent?
Ability to survive and reproduce
Major changes overtime, typically leading to a new species being created.
Macroevolution.
Symbiosis is the interaction between 2 similar organisms..
Endosymbiosis is when an organism moves...
Inside another organisms cell.
What's Mr. Browns favorite candy?
Sour Patch Watermelons
Their beak shape was based on the type of food they ate, or that was available on the island they were on.
Genetic drift
Climate change such as the Ice Age can lead to extinction of certain organisms. What are two other factors that could lead to extinction?
new predators, disease, and competition with other species.
What 4 molecules make up proteins?
DD: what is the other molecule that can sometimes be present in proteins?
Oxygen, Nitrogen, Carbon, Hydrogen
DD: Sulfur
an inherited trait or behavior that helps an organism survive and reproduce.
Adaptation
What 3 mechanisms can lead to evolution?
Natural Selection, Artificial Selection, and Mutations
The relationship between the ants and the acacia tree is called...
Coevolution
Rapid change will typically result in...
Extinction
What are 3 of the 4 important jobs that proteins have?
Carry materials through the body
Act as a messenger
Help fight diseases
Carry out chemical reactions