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Evolutionary Relationships
Adaptations, Variations, and Isolation
Natural Selection
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100
The process of how organisms acquire adaptations over time is called this.
What is evolution?
100
This is an inherited trait that helps an organism survive.
What is an adaptation?
100
If variations within a population are caused by mutation and prove to be beneficial, will they be more or less likely to be passes on to future generations?
What is more likely?
100
What type of structures are bird winds and moth wings.
What are analogous structures? Analogous stuctures: similarity of function and superficial resemblance
100
Cladograms show what?
What is the relationship among living species and their ancestors.
200
Thomas Malthus’ argument that helped support Darwin’s ideas about evolution was that _____.
What is humans have a tendency to grow faster than their food supply?
200
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?
200
Darwin concluded that the mechanism for evolution is this.
What is natural selection?
200
Why are cells considered evidence for evolution?
What is there are striking similarities among all cells?
200
Which of the following are required for fossil formation: A) an organism's body is quickly covered in sediments B) more and more sediments cover the remains over time C) an organism's body is slowly covered in sediments D) the chemicals in the body parts are replaced with rock like minerals
What is all but C- an organism's body is slowly covered in sediments.
300
Each branch of a cladogram represents this.
What are different evolutionary paths?
300
The use of fossils to trace evolution of a horse is known as what?
What is the fossil record?
300
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?
300
Where are most fossils dug from?
What is Earth's crust, Sedimentary rock layers, and Earth's outermost layer.
300
When a population becomes dived by an event such as a new mountain forming, _____ has occurred.
What is isolation?
400
Species that share more similarities in their DNA are _____ than those that share fewer similarities.
What is more closely related?
400
Where there is no change in the environment, which population would have a better chance of survival, populations with many variations have a better chance of survival or a population with little or no variations.
What is the population with many variations?
400
What causes extinction to occur?
What is loss of habitat.
400
Survival of the fittest is often the term used to describe this process.
What is natural selection?
400
Who was writing a similar paper to Darwin's; which, in turn forced Darwin to publish his paper?
Who is Alfred Russell Wallace.
500
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?
500
What 3 things have to happen for a new species to evolve?
What are isolation, adaptation, and differentiation?
500
Explain how Darwin’s observations of finches in the Galapagos Islands led to his ideas about natural selection.
What is he observed that finches on the islands were slightly different from those found on the mainland. He also noted slight differences in finches from island to island.
500
Who is the father of the theory of evolution?
Who is Charles Darwin.
500
How do artificial selection and natural selection differ?
What is artificial selection is favorable traits chosen by an individual and natural selections is favorable traits influenced by nature.