Natural Selection
___________ The theory discovered by Darwin that states that organisms that are most fit for their environment are able to survive nd reproduce more.
Natural Selection
similar physical features in organisms, but different functions
homologous structures
False
The science of the development of embryos from fertilization to birth.
Naturally preserved remains, imprints or traces of organisms that lived long ago are called what?
The ability to survive and reproduce
Fitness
Structures that have the same function, but different structure
example: butterfly wing and bird wing
Analogous Structure
True or False: The extinction of dinosaurs created a niche that provided an opportunity for the evolution of mammals.
True
An unborn or unhatched offspring in the process of development.
An embryo
One of the activities we did in class to explore the fossil record
excavation lab, and mystery species lab
One of the activities we did in class to demonstrate the theory of natural selection.
Peppered Moths or Goldfish or Finches
What does it mean that humans, bats, whales and cats have some of the same bones?
common ancestor or related in some way
How does the fossil record show evidence of mass extinction?
The fossil record shows gaps in certain species or the sudden disappearance of a species.
All humans have tails as embryos. What do these tails develop into before we are born?
Our tailbone
Generally, the older the fossil are ______ in Earth
deeper
Dark mice and light mice live on light colored rocks, and hawks are their main predator. Which mouse is most fit for this environment?
Light Mice
Humans: tails
Whales: hip bones
Are examples of what kind of structure?
Vestigial
True or False: Humans are preserving the planet and another mass extinction is rare.
False
The more closely related the species the _______ they look the same during embryonic development.
longer
The oldest rock layers show evidence of plant life. Why do the oldest rock layers not show evidence of animal life?
Animals had not evolved yet.
Dark mice and light mice live on light colored rocks, and hawks are their main predator. A sudden shift in the air quality causes the rocks to turn dark, what will happen to the population?
Hint: The number of ________ mice will increase and the number of _______ mice will decrease.
The number of dark mice will increase and the number of light mice will decrease.
How does does structural evidence support the idea of common ancestry?
They show similar structures for different species which infers the presence of a common ancestor.
How does mass extinction increase biodiversity?
Two ways:
1. Creates more land space that allows for more species to fill it up.
2. Creates room for new organisms to fill different niches in the environment.
How does the fossil record provide evidence for common ancestry?