Question 3

what major explanation did charles darwin provide?

he explained how dna is passed on but did not have evidence of it occurring.

he was the first to provide an explanation of evolution supported by evidence.

the idea of speciation was first proposed by him.

he explained how turtles adapted to their environment.

How does the molecular clock work? a. it analyzes the brain functionality of two different species. b. it examines and compares the physical characteristics of two different species. c. it illustrates relationships between two different species. d. it compares the number of mutations that exist in the dna of two different species.

The distribution of related animals and plants across the world

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees