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If global warming increases, which animal is most likely to be selected against survival?
The number of offspring that survive to reproduce
They insulate the bears and allow them to blend in with their environment
Natural selection is one aspect of evolution
The climate changed and the dinosaurs could not adapt
The climate becomes colder and a species adapts to the change
Polar bear
camouflage
genetic variation
Which is the best hypothesis for the extinction of the dinosaurs at the end of the Cretaceous period?
The number of offspring that survive to reproduce
They insulate the bears and allow them to blend in with their environment
Natural selection is one aspect of evolution
The climate changed and the dinosaurs could not adapt
The climate becomes colder and a species adapts to the change
Polar bear
camouflage
genetic variation
Which characteristic of organisms allows them to adapt to problems in their environment?
The number of offspring that survive to reproduce
They insulate the bears and allow them to blend in with their environment
Natural selection is one aspect of evolution
The climate changed and the dinosaurs could not adapt
The climate becomes colder and a species adapts to the change
Polar bear
camouflage
genetic variation
Which is the best sign of the ability of an organism to survive and reproduce in evolutionary biology?
The number of offspring that survive to reproduce
They insulate the bears and allow them to blend in with their environment
Natural selection is one aspect of evolution
The climate changed and the dinosaurs could not adapt
The climate becomes colder and a species adapts to the change
Polar bear
camouflage
genetic variation
Which adaptation has occurred due to genetic variation allowing some species to seem invisible to predators?
The number of offspring that survive to reproduce
They insulate the bears and allow them to blend in with their environment
Natural selection is one aspect of evolution
The climate changed and the dinosaurs could not adapt
The climate becomes colder and a species adapts to the change
Polar bear
camouflage
genetic variation
Which best explains the relationship between evolution and natural selection?
The number of offspring that survive to reproduce
They insulate the bears and allow them to blend in with their environment
Natural selection is one aspect of evolution
The climate changed and the dinosaurs could not adapt
The climate becomes colder and a species adapts to the change
Polar bear
camouflage
genetic variation
Why are fat layers and thick fur advantageous for polar bears?
The number of offspring that survive to reproduce
They insulate the bears and allow them to blend in with their environment
Natural selection is one aspect of evolution
The climate changed and the dinosaurs could not adapt
The climate becomes colder and a species adapts to the change
Polar bear
camouflage
genetic variation
Which best explains how environment and genetic variation contribute to the difference in a species physical appearance?
The number of offspring that survive to reproduce
They insulate the bears and allow them to blend in with their environment
Natural selection is one aspect of evolution
The climate changed and the dinosaurs could not adapt
The climate becomes colder and a species adapts to the change
Polar bear
camouflage
genetic variation
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