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A group of students learns that the traits of some organisms change over time because organisms better adapted to the environment tend to survive and produce more offspring. Which term best describes this process?
More birds with longer beaks survived to produce offspring for the next generation.
traits that increase fitness
use empirical evidence to validate the theory and record scientific observations
a rat snake randomly mating with a different species of snake so that the species share a common gene pool
Natural selection
The food sources available on each island are different.
The birds from the Galapagos Islands changed over time in order to meet specific needs for survival.
Nebraska has light-colored soil and grass.
Galapagos Medium Ground Finches are from a single genetic ancestor but are found on different islands. What is the most likely explanation why these birds differ in appearance from island to island?
More birds with longer beaks survived to produce offspring for the next generation.
traits that increase fitness
use empirical evidence to validate the theory and record scientific observations
a rat snake randomly mating with a different species of snake so that the species share a common gene pool
Natural selection
The food sources available on each island are different.
The birds from the Galapagos Islands changed over time in order to meet specific needs for survival.
Nebraska has light-colored soil and grass.
When researching hitell other scientists ofs theory of natural selection, Charles Darwin did extensive studies on the Medium Ground Finch of the Galapagos Islands. In order to ensure that a hypothesis is actually a viable theory, a scientist must.
More birds with longer beaks survived to produce offspring for the next generation.
traits that increase fitness
use empirical evidence to validate the theory and record scientific observations
a rat snake randomly mating with a different species of snake so that the species share a common gene pool
Natural selection
The food sources available on each island are different.
The birds from the Galapagos Islands changed over time in order to meet specific needs for survival.
Nebraska has light-colored soil and grass.
The deer mouse is a species found throughout North America. Most deer mice have dark-colored coats. The deer mice that live in Nebraska have developed light-colored coats. Which best explains this phenomenon?
More birds with longer beaks survived to produce offspring for the next generation.
traits that increase fitness
use empirical evidence to validate the theory and record scientific observations
a rat snake randomly mating with a different species of snake so that the species share a common gene pool
Natural selection
The food sources available on each island are different.
The birds from the Galapagos Islands changed over time in order to meet specific needs for survival.
Nebraska has light-colored soil and grass.
Students studies skulls from different generations of the same species of birds. The students noticed that, in each generation, the bird beaks increased in length. What is the best explanation for this occurrence?
More birds with longer beaks survived to produce offspring for the next generation.
traits that increase fitness
use empirical evidence to validate the theory and record scientific observations
a rat snake randomly mating with a different species of snake so that the species share a common gene pool
Natural selection
The food sources available on each island are different.
The birds from the Galapagos Islands changed over time in order to meet specific needs for survival.
Nebraska has light-colored soil and grass.
Natural selection favors...
More birds with longer beaks survived to produce offspring for the next generation.
traits that increase fitness
use empirical evidence to validate the theory and record scientific observations
a rat snake randomly mating with a different species of snake so that the species share a common gene pool
Natural selection
The food sources available on each island are different.
The birds from the Galapagos Islands changed over time in order to meet specific needs for survival.
Nebraska has light-colored soil and grass.
A concept in scientific research states that changes in genetic traits may be passed from one generation to the next through natural selection. An example of how
More birds with longer beaks survived to produce offspring for the next generation.
traits that increase fitness
use empirical evidence to validate the theory and record scientific observations
a rat snake randomly mating with a different species of snake so that the species share a common gene pool
Natural selection
The food sources available on each island are different.
The birds from the Galapagos Islands changed over time in order to meet specific needs for survival.
Nebraska has light-colored soil and grass.
Darwin studied finches on the Galapagos Islands and noticed distinct finch beaks on the various islands due to the different food sources available. From his studies, Darwin concluded...
More birds with longer beaks survived to produce offspring for the next generation.
traits that increase fitness
use empirical evidence to validate the theory and record scientific observations
a rat snake randomly mating with a different species of snake so that the species share a common gene pool
Natural selection
The food sources available on each island are different.
The birds from the Galapagos Islands changed over time in order to meet specific needs for survival.
Nebraska has light-colored soil and grass.
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