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WorksheetsNatural Selection
Total questions: 15
Worksheet time: 8mins
Who is credited with the theory of natural selection?
Charles Darling
Charles Fredricks
Charles Barkley
Charles Darwin
More babies are born than can survive.
Overproduction
Struggle to survive
Variation
Successful reproduction
Babies are similar to, but not identical to, their parents.
Overproduction
Variation
Struggle to survive
Successful reproduction
Only the best adapted survive based on environmental pressures.
Overproduction
Variation
Struggle to survive
Successful reproduction
A group of similar organisms that can create fertile offspring.
Biodiversity
Spices
Species
Adaptation
A characteristic that improves an organism's chances to survive.
Gene
Species
Trait
Adaptation
The process in which the organisms that are best adapted survive and reproduce more often.
Selective breeding
Natural selection
Genetic engineering
Traits chosen by females that may actually make it harder for the males to survive.
Overproduction
Predators
Harmful traits
Helpful traits
Features that are similar in either appearance or function.
Homologous structures
Variations
Environmental pressures
A genetically determined characteristic.
Trait
Gene
Adaptation
Variation
Anything in the environment that makes it harder for a species to survive.
Adaptation
Species
Environmental pressure
Overproduction
An adaptation to a dry desert environment.
Using more water
Being active only during the day
Having large, flat leaves
Storing water
Pick an adaptation that would help if you were a prey animal and were being chased by a flying predator.
Bright colors
Camouflage
Short legs
Storing water
Pick an adaptation that would help you if you were living in the arctic.
Storing water
Long, thin legs
Thick fur coat
Dark body color
Which is an example of a harmful trait?
Camouflage
A fur coat (in winter)
Large antlers
