What are homologous structures?
Body parts that are similar in structure but may have different functions, showing common ancestry
Who developed the theory of natural selection?
Charles Darwin
What book did Charles Darwin write?
On the Origin of Species
What ship did Charles Darwin travel on?
HMS Beagle
What did Darwin do on the HMS Beagle?
Collected specimens and made observations
What is the first point of natural selection?
Populations have variations
What is the second point of natural selection?
Some variations are favorable
What is the third point of natural selection?
More offspring are produced than survive
What is the fourth point of natural selection?
Individuals with favorable traits survive and reproduce
What is the fifth point of natural selection?
Populations change over time
What is melanism?
An increased amount of dark pigment (melanin) causing darker coloration
What is mimicry?
When an organism imitates another organism, plant, or object
Why do animals use mimicry?
To survive, often by avoiding predators
What are examples of mimicry types?
Visual, auditory, and olfactory imitation
Why are homologous structures important?
They provide evidence of evolution and common ancestry
What is natural selection?
The process where organisms with favorable traits survive and reproduce
Why do not all offspring survive?
Limited resources and environmental challenges
What happens to favorable traits over time?
They become more common in a population