Homologous Structures
Fossils/ Evolution
Embryology
100
Give me an example of a species we talked about that we have today and their common ancestor.
wolf and dogs, etc.
100
Which Rock layer is the oldest?
A
100
Looking at all stages of development, the Human looks closely related to the ____________?
Pig
200
Species with homologous structures share a ________ ______________.
Common ancestor
200
What is a Fossil?
Solidified remains/imprints of a once living organism
200
Embryology is broken up into how many stages?
3
300
The various colors used in the images of homologous structures represent these.
What are bones?
300
A scientist who studies fossils
A paleontologist
300
What is an embryo?
a developing organism (fetus)
400
Differences in organisms, with homologous structures come about because of this (these).
What are different environments?
400
What is evolution?
A change in a population over a lot of time.
400
(149).jpg)
What are 2 things that these all have in common?
Backbone/ tail and four limbs
500
Homologous structures give evidence of this.
What is common ancestry (in genetic/physical form)
500
What is it called when a huge number of species die in a short period of time.
mass extinction
500
What are three physical features you should ALWAYS look to compare when looking at embryos
Skull, limbs and vertebrae