Evolutionary Relationships
The process of how organisms acquire adaptations over time is called this.
What is evolution?
This is an inherited trait that helps an organism survive.
What is an adaptation?
The process by which a population’s environment determines which traits are beneficial and which are not.
What is natural selection?
All living things have this in common.
What is carbon? What is DNA?
Ordering events in the order they happened is a method of sequencing events WITHOUT DATES.
What is relative dating?
Traits that help organisms survive and reproduce in their current environment.
As a populations’ habitat changes over time, a species with a high level of variation would have this.
What is a better chance of survival?
Traits that are beneficial are only passed on through this.
What is reproduction?
There have been this number of mass extinctions in Earth’s history.
What is five?
This is the amount of time it takes for HALF of the unstable atoms in a sample to decay.
What is a half-life?
In a population, there are multiple traits for the same gene. This graph is a key indicator of what?
What is a distribution graph being a key indicator of allele frequency?
Explain how mutations occur in an organism and how they affect a population.
What is mutations occur randomly in genes and produce variation of traits in a population?
The climate of a certain area is cold, and snow is found on the ground most of the year. Equal numbers of two populations of rabbits are introduced into this climate by a group of scientists. One of the populations is brown and the other is white. Over several generations, this will happen.
What is there will be more white rabbits than brown rabbits?
Alfred Wegener theorized that the continents were once a great landmass that he named this.
What is Pangaea?
What does DNA stand for?
What is deoxyribonucleic acid?
Species that share more similarities in their DNA are _____ than those that share fewer similarities.
What is more closely related?
Populations with many variations have a better chance of survival than a population with little or no variations when this happens.
What is there is a change in the environment?
Natural selection acts on these that must already exist in the population.
What is alleles? What is allele frequency?
What is carbon?
DNA turns into RNA which produces this.
What is an amino acid chain? What is a protein?
Over 90% of the DNA base sequences for hemoglobin in chimpanzees and humans are identical, suggesting this.
What is that the two species share a common ancestor?
The separation of the continents through plate tectonics result in new species because _____.
What is once a population becomes separated they can no longer breed, so the separated populations evolve differently and eventually become different species?
Explain how Darwin’s observations of finches in the Galapagos Islands led to his ideas about natural selection.
What is
The difference that he found most notable was the differences in beak shape. It appeared to be different based on the type of food eaten, and therefore Darwin concluded that the finches were adapted for the type of food they ate.
Throughout the history of the Earth, these changes in DNA either hurt, benefit or do not effect a species in evolving.
What is a mutation.
Large male salmon defend territory and keep other males away from females. Small males can often sneak into a territory, unseen by the large male. This graph would be effected.
What is a distribution graph?