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How is natural selection in the evolution of long necks giraffes best explained?
variations
geographic isolation
Green beetles have a greater chance of surviving and reproducing and will become more common in the population.
vestigial structures
This would be a harmful mutation because it reduces the beetle’s ability to camouflage itself.
natural selection
A gene is made of DNA and contains the instructions for building proteins.
Giraffes with longer necks were able to eat more food and survive better.
Brown and green bugs are seen in a green leafy environment. You conclude that green beetles are better camouflaged than yellow ones from predators. How do you predict beetle color in this population will evolve over time?
variations
geographic isolation
Green beetles have a greater chance of surviving and reproducing and will become more common in the population.
vestigial structures
This would be a harmful mutation because it reduces the beetle’s ability to camouflage itself.
natural selection
A gene is made of DNA and contains the instructions for building proteins.
Giraffes with longer necks were able to eat more food and survive better.
Whales have no legs, yet they still have pelvic bones. These body parts were probably once functional in an ancestor. We call these non-functioning body parts __________
variations
geographic isolation
Green beetles have a greater chance of surviving and reproducing and will become more common in the population.
vestigial structures
This would be a harmful mutation because it reduces the beetle’s ability to camouflage itself.
natural selection
A gene is made of DNA and contains the instructions for building proteins.
Giraffes with longer necks were able to eat more food and survive better.
A population of bugs initially consists of dark and light colored bugs. After several generations, the bug population is almost all dark colored bugs because the light colored bugs are easier for predators to find and eat. This is an example of _____
variations
geographic isolation
Green beetles have a greater chance of surviving and reproducing and will become more common in the population.
vestigial structures
This would be a harmful mutation because it reduces the beetle’s ability to camouflage itself.
natural selection
A gene is made of DNA and contains the instructions for building proteins.
Giraffes with longer necks were able to eat more food and survive better.
When two groups of the same species are separated for a long period of time by mountains, water, or other natural feature, new variations can start to appear in the different groups. This is called _________.
variations
geographic isolation
Green beetles have a greater chance of surviving and reproducing and will become more common in the population.
vestigial structures
This would be a harmful mutation because it reduces the beetle’s ability to camouflage itself.
natural selection
A gene is made of DNA and contains the instructions for building proteins.
Giraffes with longer necks were able to eat more food and survive better.
Which of the following BEST describes a gene?
variations
geographic isolation
Green beetles have a greater chance of surviving and reproducing and will become more common in the population.
vestigial structures
This would be a harmful mutation because it reduces the beetle’s ability to camouflage itself.
natural selection
A gene is made of DNA and contains the instructions for building proteins.
Giraffes with longer necks were able to eat more food and survive better.
When an organism has many offspring, some of the offspring are different, these differences are called ________
variations
geographic isolation
Green beetles have a greater chance of surviving and reproducing and will become more common in the population.
vestigial structures
This would be a harmful mutation because it reduces the beetle’s ability to camouflage itself.
natural selection
A gene is made of DNA and contains the instructions for building proteins.
Giraffes with longer necks were able to eat more food and survive better.
Green beetles are well camouflaged. Suppose a mutation occurs in a beetle’s gene. This mutation affects a protein, which in turn results in the beetle having red spots on its back. Which of the following statements BEST describes this mutation?
variations
geographic isolation
Green beetles have a greater chance of surviving and reproducing and will become more common in the population.
vestigial structures
This would be a harmful mutation because it reduces the beetle’s ability to camouflage itself.
natural selection
A gene is made of DNA and contains the instructions for building proteins.
Giraffes with longer necks were able to eat more food and survive better.
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