Mechanisms Of Evolution
This is the random change in DNA that introduces new traits into a population
mutation
The study of similar bones in a bat’s wing and a human arm is an example of this type of evidence.
comparative anatomy
This type of speciation happens when a physical barrier divides a population.
allopatric speciation
The Hardy Weinberg equilibrium describes a population in which this is not happening
evolution
This molecule carries genetic instructions in living things.
DNA
The movement of genes from one population to another is known as this.
gene flow?
These remains of ancient organisms provide a timeline for evolution
fossils
When new species evolve in the same geographic area, it is called this.
sympatric speciation
Name one assumption that must be true for Hardy Weinberg equilibrium
large population
tiny structures in the cell convert food into energy.
mitochondria
This mechanism is described as “survival of the fittest.”
natural selection
The similarity in dna sequences among different species provides this kind of evidence
molecular evidence
The inability of different species to produce fertile offspring is called this.
reproductive isolation?
If a population is not in Hardy-Weinberg equilibrium, this must be happening
evolutions
process by which plants make their own food using sunlight.
photosynthesis
This mechanism happens by chance and is especially important in small populations.
genetic drif
mbryos of fish birds, and humans all look similar at early stages showing this type of evidence.
embryological evidence
This famous group of birds on the Galapagos Islands is an example of adaptive radiation
Darwins finches
True or False: Hardy-Weinberg equilibrium means allele frequencies stay the same from one generation
True
The largest organ in the human body
skin
When individuals select mates based on certain traits, this evolutionary mechanism is at work.
non-random mating
Structures like the human appendix that have lost their original function are called these.
vestigial structures
Speciation that occurs when populations are separated by an extreme change in habitat like a mountain range is called this
geographic isolation
The Hardy-Weinberg equation uses the letters “p” and “q” to represent these
allele frequencies
The “father of evolution” who wrote On the Origin of Species
Charles Darwin