Evolution and Natural Selection

Front

Any inherited trait that gives an organism an advantage in its environment is called ___

Back

an adaptation

Front

Which of the following BEST supports the data shown in this graph?

Back

As time passes, the temperature increases.

Front

Mimicry and Camouflage are examples of ___

Back

adaptations

Front

Which is necessary for speciation to occur?

Back

isolation

Front

The walking catfish is a species of fish that walks on land using its pectoral fins. During drought conditions, when there is little water in its habitat, the walking catfish can use its pectoral fins to get to areas with water. What is likely to happen to the population?

Back

Walking catfish with large pectoral fins are more likely to survive a trip to distant areas of water. The population is likely to evolve to have larger pectoral fins.

Front

What is evolution?

Back

The process by which different kinds of living organisms develop and diversify from earlier forms during the history of the earth.

Front

What is natural selection?

Back

The process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

Define speciation.

Back

The formation of new and distinct species in the course of evolution.

Front

What role does genetic variation play in evolution?

Back

Genetic variation provides the raw material for natural selection to act upon.

Front

What is the difference between adaptation and acclimatization?

Back

Adaptation is a genetic change in a population over generations, while acclimatization is a short-term physiological change in an individual.