Font size
WorksheetsVariation and Adaption
Total questions: 25
Worksheet time: 25mins
What is an adaptation?
A feature that helps only a plant grow.
A feature that helps a living thing survive.
A feature that helps a living thing walk.
A feature that that helps only animals survive.
Behavioral adaptations are:
Body parts that help a living thing survive in its environment
Behaviors that help a living thing survive in its environment
Physical adaptations are:
Body parts that help a living thing survive in its environment
Behaviors that help a living thing survive in its environment
What word means to change physical features or behaviors of a species in response to changes in the environment?
Adapt
naturalist
Organism
Species
The diagram below shows variations of Galápagos Island finches that formed over many generations.
What most likely caused the variations in these finches?
The number of mates on the islands
The available water on the islands
The available food sources on the islands
The temperatures on the islands
Darwin found the following finches on the Galapagos islands. What best describes why they have different beaks?
Genetic variation has made it possible for birds to feed on different forms of food due to their beak shape.
Genetic variation has made it possible for larger eyes on the birds to see.
Genetic variation has made it possible for the birds to camouflage themselves on the island.
Genetic has made it possible for the birds to feed at different times of the day due to competition.
When Charles Darwin visited the Galapagos Island in the 1800s, he observed many types of organisms that were similar but lived on different islands. The four species of mockingbirds found on the Gapapagos Island are shown below. Each species lives on a different island. These species are very similar, but the Hood mockingbird has a longer beak than the other three species. Which of the following best explains this difference?
The hood mockingbird needs a longer beak for defense against predators.
The Hood mockingbird originated from a different type of bird than the other species.
The Hood mockingbird's longer beak is an adaptation to the food available in the bird's habitat.
The Hood mockingbird's beak stretched to reach its food, and the longer beak was passed down to its offspring.
Match the following terms with their definitions
Evolution
a change in a species DNA over time because of natural selection
Adaptation
Any variation that makes an organism better able to survive
Variation
An inherited trait that makes and individual different
Mutation
A permanent change in the DNA
Darwin observed a few islands. He saw that animals looked different in different islands based on their needs. This process of adaptation is called (a)
Natural selection
Nutritional slection
National selection
Evolutionary diet
How do adaptations help animals?
To escape animals
to hunt for food
to survive in their habitats
All of these are correct
What word describes a trait that helps an organism survive in its environment?
natural selection
mutation
camouflage
adaptation
The differences among a species, like different bird beaks, are called
genes.
variations.
traits.
theories.
These moths are all the same species. The differences between their wings is an example of ________________
Natural Selection
Variation
Homeostasis
Extinction
Most adaptations that help an organism survive are passed on from parent to child as ___traits?
adaptable
physical
more
inherited
To adjust to a changing environment
Mutation
Adapt
Finches that live on the Galapgos islands have a wide genetic variation in beak shape and size. What caused this variation?
It was a defense against predators
They originated from different types of species
It is an adaptation to the food sources available
The beak stretched to reach its food and was passed down
What is an adaptation?
feature or behavior that helps an animal survive.
food that an animal eats.
How energy moves in a food web.
How animals evolve throughout time.
A giraffe's long neck - used to reach leaves high in trees - is an example of a
instinct
learned behavior
behavioral adaptation
physical adaptation
Animals that have something they DO to live (hibernate, migrate, etc.) are exhibiting ____ adaptations.
behavioral
structural
physiological
assistive
____ is where better adapted organisms survive to pass traits along to their offspring.
evolution
natural selection
extinction
artificial selection
Most adaptations that help an organism survive are passed on from parent to child as ____.
behavioral adaptations
inherited traits
genetic variation
none of the above
Species with ____ variations are ____ likely to survive.
more; less
less; less
less; more
more; more
Survival of the Fittest describes which theory
a) natural selection
b) gravity
c) heredity
d) string theory
Which of the following is an example of a structural adaptation in animals?
A) The migration of birds to warmer regions during winter
B) The thick fur of polar bears to insulate against cold
C) The nocturnal behavior of owls
D) The hibernation of bears during winter
How does genetic variation contribute to the process of natural selection?
A) It decreases the chances of survival for a species
B) It provides a pool of traits that may enhance survival in changing environments
C) It leads to the extinction of less adapted species
D) It ensures that all individuals in a species are identical
