Deck 1 (slides 1-5) Flashcards
The two types of evolution are ____________ and ______________.
Microevolution, macroevolution
Microevolution occurs on a ________ scale and consists of _________ changes in a species as they _________ to their environment.
Small, small, adapt
Microevolution is ____________ and if enough changes, there could eventually form a new _________.
Observable, species
Macroevolution occurs on a _________ scale and is more ___________.
Large, theoretical
Macroevolution causes some to believe that all living things evolved from a __________ ___________.
Common ancestor
Macroevolution also suggests that if there were millions of years of microevolution, this could be how ______ was formed on Earth.
Life
Evolution is ________ over time; it is a theory of how _________ organisms have descended from _________ organisms.
Change, modern, ancient
In 1831, __________ sailed on the British naval ship the ______ _________ on a 5-year trio around the world.
Darwin, HMS Beagle
On his trip around the world, Darwin acted as the ship’s _________ to learn as much as he could about the living things he saw.
Naturalist
Along his trip around the world, Darwin stopped at the coast of _______ __________ and he saw many organisms he had never seen before; he was surprised at the great _________ of life.
South America, diversity
In 1835, Darwin reached the ____________ __________; organism’s he saw here planted the seed of Evolution Theory in his mind.
Galápagos Islands
On the Galápagos Islands, Darwin saw many ______ types of organisms; they were similar to those on the mainland of South America but with some noticeable ___________.
New, differences
One of the species Darwin discovered on the Galápagos Islands was __________; these animals were able to fly on the mainland, but were flightless on the Galapagos.
Cormorants
Another species of animal Darwin discovered on the Galápagos Islands was _________; on the Galápagos they were grey with large claws for gripping slippery rocks where they are seaweed, but on the mainland, they were ______ and had small claws to climb ______ were they ate leaves.
Iguanas, green, trees
From his observations on the Galápagos Islands, Darwin inferred that a _______ number of different plant and animal species had come to the Galápagos from ____________.
Small, mainland
