WorksheetsAdaptations, Natural Selection and Selective Breeding
Total questions: 15
Worksheet time: 15mins
Mountain lions are large cats and the top predator in their habitat. A population of mountain lions may vary in several characteristics. If a prey becomes scarce, competition between mountain lions for food will increase. Which variation would provide an advantage to the individuals that possessed it?
a spotted coat
short fur
long legs
abundant whiskers
A farmer wants to increase the amount of food produced by corn crops. If the farmer selectively breeds the plants, for which trait should the farmer select?
taller stems
deeper roots
resistance to pesticides
more cobs on plant
The breeding of organisms for desired characteristics.
natural selection
variations
selective breeding
ancestor
Characteristics of an organism that enable it to survive.
variation
adaptation
artificial selection
natural selection
Explains how populations change as their environment changes.
ancestor
selective breeding
artificial selection
natural selection
An adaptation that involves the way an organism behaves.
structural adaptation
functional adaptation
natural selection
behavioral adaptation
An adaptation that involves color, shape, and other physical characteristics.
structural adaptation
functional adaptation
behavioral adaptation
natural selection
Island chain where Darwin observed many varieties of species.
Hawaiian
South American
Galapagos
Philipines
A beneficial __________ in neck length spreads throughout a tortoise population through natural selection.
offspring
species
ancestor
variation
The process by which populations of organisms with variations that help them survive in their environments live longer, compete better, and reproduce more than those that do not have the variation.
Evolution
natural selection
adaptation
extinction
An inherited trait that increases an organisms chance of surviving and reproducing in its environment.
variation
species
natural selection
adaptation
An adaptation that enables a species to blend in with its environment.
behavioral adaptation
natural selection
functional adaptation
camouflage
Which of the following is an example of a structural adaptation in animals?
A) Migration patterns
B) Camouflage
C) Hibernation
D) Nest building
In a population of beetles, some have green shells and some have brown shells. If birds prefer to eat green beetles, what is likely to happen to the beetle population over time?
A) The green beetles will become more common.
B) The brown beetles will become more common.
C) The population will remain the same.
D) Both green and brown beetles will become extinct.
A farmer wants to breed cows that produce more milk. Which method should the farmer use to achieve this goal?
A) Natural selection
B) Genetic engineering
C) Selective breeding
D) Random mating
