Evidence of Evolution
Darwin's Theory
Biodiversity and Extinction
100
What does the fossil record provide?
The fossil record provides clues about how and when a new species evolved and how organisms are related.
100
How many species of organisms have scientists identified
1.6 million+
100
Factors that affect biodiversity in an ecosystem include are,climate,genetic diversity,and diversity of _____
Niches
200
What are the millions of fossils that scientists have collected are called?
Fossil record
200
A trait that helps an organism to survive and reproduce is called a(n)
Adaptation
200
Most scientists think that extinction rates have increased in recent years due to ______ ________
Human activities
300
The more closely related the species are
The more similar the DNA sequences
300
What was Charles Darwin's profession?
He was a Naturalist.
300
____ ______ are the most diverse ecosystems in the world
Tropical rain forests
400
To see how closely two species are related scientists
Compare the order of amino acids in a protein
400
What was the British ship that set sail from England on a five year trip around the world?
The HMS Beagle
400
One way isolation can happen is when a _______ seperates group members.
natural barrier
500
Scientists in Florida have found fossils of
Metatomarctus canavus
500
Darwin concluded that the Finch species were all related to a single ancestor species that came from the
Mainland.
500
_____ ___ ______ is more diverse than ___ and ____
Tropical warm climate / dry and cold
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