Structural Adaptations
What is a structural adaptation?
A physical feature that helps an organism survive
What is a behavioral adaptation?
An action or behavior that helps survival
What is a physiological adaptation?
An internal body process that helps survival
Why are adaptations important for survival?
They help organisms meet their needs and avoid danger
What is natural selection?
The process where organisms with helpful traits survive and reproduce more
What structural adaptation helps polar bears stay warm?
Thick fur and blubber
What behavior helps birds survive cold winters?
Migration
What adaptation allows camels to survive with little water?
Storing fat and conserving water
What does reproductive success mean?
Producing offspring that survive
Which organisms are most likely to survive?
Those with beneficial adaptations
What adaptation helps a giraffe reach food high in trees?
A long neck
What is hibernation?
A long period of inactivity during cold seasons
What physiological adaptation helps snakes digest large meals slowly?
A slow metabolism
Why might brightly colored feathers help some birds reproduce?
They attract mates
True or False: Adaptations appear because organisms want them.
False
What structural adaptation helps ducks swim?
Webbed feet
Why do wolves hunt in packs?
To catch prey more effectively
Why do humans sweat?
To cool the body
How can adaptations be passed to offspring?
Through inherited genes
How can environmental changes affect adaptations?
Different traits may become helpful or harmful
What do camouflage patterns help animals do?
Blend into their environment to avoid predators
What behavior do meerkats use to warn others of danger?
Alarm calls
What allows some fish to survive in freezing water?
Antifreeze-like chemicals in their blood
What happens to helpful adaptations over generations?
They become more common in the population
What is an example of an adaptation increasing over generations?
More dark-colored moths surviving in polluted areas