WorksheetsEvolution by Natural Selection
Total questions: 16
Worksheet time: 8mins
The Galapagos Island were important to Darwin's studies because
He made observations about the people on the islands
He made observations about the sun
He made observations about the differnt types of Finches on each island.
What are structures that are similar but have differnet functions called?
Homologous structures
Adaptable structures
Artificial structures
Modifiable structures
The structures that were once needed for survival but are not longer required are called ________ ____________.
Homologous Structures
Vestigial Structures
Adaptable Structures
Adaptable structures
How many species of Finches did Darwin observe on the Galapagos Islands?
10
12
13
14
What was the main differences that Darwin observed about the finches on the different islands?
Their beaks were different colors
Their beaks were different shapes and sizes.
Their feathers were different colors.
Their taste in music was different.
What was not an important topic included in Darwin's book?
Every population of organisms includes variation.
Organisms reproduce more than the environment can support.
Putting together variation and competition will result in a phenomenon called natural selection.
Explaining the importance of the HMS Beagle taking beagle around the world.
What is natural selection?
Survival of the fittest
Differences between individuals
Organisms are descended from ancestral species.
Artificial selection
Every population of organisms includes variation. What is variation?
Competition between organisms
Differences between individuals
The organisms that are the fittest are the ones that survive
Similarities in characteristics from a common ancestry
What is considered an analogous structures?
Structures with similar structures but different functions.
Structures used for the same function but have different structures
Structures that allow the organism to receive analog television.
Structures that allow the organisms to climb, fly, and swim.
Why is natural selection more than just a theory?
It is more than a theory because people thought Darwin was a smart dude.
It is more than a theory because many scientists have tested the theory through experiments.
It is more than a theory because they have not completed enough testing and observations.
It is more than a theory because everything on Earth is plain and the same.
Artificial breeding can take advantage of differences between individuals is called __________ ____________.
Natural selection
Homologous structures
Artifical selection
Survival of fittest
Molecular evidence for evolution does not include:
DNA and RNA determine the development of all organisms.
The same biochemical building blocks, such as amino acids and nucleotides, are found in all organisms, from bacteria to plants and animals.
The similarities and differences between the genomes confirm patterns of evolution.
The idea that variation combined with competition will result in natural selection.
How can you tell how old a fossil is by observing in which layer of rock it was found?
Newer layers form on top of the older layers and the deepest rock layers are the oldest
There are only three layers of rock in the Earth's surface.
All fossils are the same age no matter where they are found..
Fossils are never found in rock layers. They are only found in the ocean.
What is one way to look for evidence that two very different animals could have descended from a common ancestor?
Observe their embryos
Observe their physical traits
Observe their homologous structures
Observe the variations within the species.
Darwin observed the finches on the islands had different types of beaks. What was his conclusion about their beaks?
They adapted over time to the foods available on their home island.
They created variations over time to adjust for the food on their home island.
They developed homologous structures to account for the different types of food.
They selected different types of structures to account for the different types of food.
When some organisms are fighting for the same food source or habitat we call it ____________.
Variation
Separation
Competition
Selection
