Theory of Evolution
Who is Charles Darwin?
English naturalist whose scientific theory of evolution by natural selection became the foundation of modern evolutionary studies.
What is DNA?
the hereditary material in humans and almost all other organisms
What is the theory of natural selection?
More individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive.
How do humans evolve?
Human evolution took place as new genetic variations in early ancestor populations favored new abilities to adapt to environmental change and so altered the human way of life
What is evolution?
the process by which different kinds of living organisms are thought to have developed and diversified
What is the Theory of Evolution?
evolution by natural selection
What is Survival of the fittest?
the continued existence of organisms which are best adapted to their environment, with the extinction of others, as a concept in the Darwinian theory of evolution.
What are the causes of mutation?
DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.
Is there evidence of evolution?
Yes ,the remains or traces of organisms from a past geologic age embedded in rocks by natural processes are called fossils.
What is a species?
a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
What is reproduction ?
The biological process by which new individual organisms "offspring" are produced from their "parent" or parents.
How are all species related?
Because they all have the same common ancestor
How is natural selection related to genetics?
If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation
How are modern humans and neanderthals related?
Neanderthals are our closest ancient human relatives. Scientific evidence suggests our two species shared a common ancestor.
Why do some species survive while others go exstinct?
When conditions change, some species possess adaptations that allow them to survive and reproduce, while others do not.
When is it important to reproduce?
So that a specific species does not go extinct.
What is the strongest evidence of a common ancestor?
gene sequences
What is the difference between artifical selection, and natural selection?
hat natural selection happens naturally, but selective breeding only occurs when humans intervene.
What do humans and single celled organisms have in common?
mitochondria, ER etc which humans to have , they eat metabolize, so do humans , they reproduce, so do humans
Dinosaurs, anything that doesn't walk the earth right now and can't reproduce.
What was Charles Darwin's job on his expedition aboard the HMS Beagle?
to observe and collect specimens of plants, animals, rocks, and fossils
What is the common ancestor of all life?
Luca
The white fur of a polar bear is an example of which form of adaptation?
Camouflage
How has artificial selection affected wolves?
People breed them for their traits and create breeds with them.
How do paleontologists learn about evolution?
By studying fossils, evidence for evolution is revealed.