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13 questions
Chameleons are reptiles that have the ability to hide from predators and prey by blending in with their environment. They can change the pattern and/or color of their skin. This ability is known as
natural selection
imitation
mimicry
camouflage
Crickets communicate with other crickets by chirping. Crickets who cannot make a sound are less likely to find a mate and reproduce. For this reason, there are few crickets that cannot make a sound. This is an example of
learned behavior
genetic replication
natural selection
selective breeding
A spiny cactus is growing very successfully in an Arizona desert. This plant has made adaptations to its native environment that make it successful in harsh conditions. Three adaptations that the spiny cactus has are
broad leaves, deep roots, sharp spines
waxy leaves or pods, and sharp spines to preserve moisture; a large, shallow root system
sharp spines, lots of small leaves that taste bad, and deep roots
large, shallow root system, sharp spines, thick trunk
Which of the following best explains the difference between the terms “genetics” and “heredity”?
Genetics is the study of recessive traits; heredity is the study of dominant traits.
Genetics is the study of dominant traits; heredity is the study of recessive traits
Genetics is the study of genes; heredity is the study of how genes are transferred from one generation to the next.
Genetics is the study of how genes are transferred from one generation to the next, heredity is the study of genes.
Which of these characteristics would be an advantage for a type of dog that is bred to be a guard dog?
long tail
loud bark
short snout
soft fur
Which of the following BEST describes the advantage of having fewer offspring?
There are fewer offspring for hungry predators to eat.
Parents can pay more attention to each offspring.
Offspring receive only the best traits and adaptations
Only one offspring will increase its survival rate.
Charles Darwin observed the finches on the island and noticed that each species was well suited to the life it led. For example, finches that ate insects had sharp, slender beaks; finches that ate seeds had strong, wide beaks. According to the above information and image, beak shape in these finches is an example of
adaptation
simulation
competition
environmentalism
Humans have selected the traits of dogs in order to use the dogs for specific jobs. Which dog pictured below was most likely bred to carry large amounts of mass in extremely cold environments?
Some moths have a brown body and brown wings, while other moths have a white body and white wings. The brown moths often rest on the bark of pine trees, and the white moths rest on the white bark of aspen trees. If all the aspen trees in an area were cut down, what would be the likely result?
More brown moths will survive than white moths because predators will be able to spot the white moths more easily. Over time, there will be no white moths in the area.
The white moths will grow brown wings in order to blend in with the environment. Over time, there will be no white moths in the area.
The white moths will migrate to a new area where aspen trees are found. The brown moths will remain in the original area. The number of brown moths will increase.
The white moths will rest on the remaining trees. Over time, they will become brown moths, so the number of moths will increase.
One type of horse is a very large, heavy animal called a Clydesdale. What kind of work would such a large, heavy animal be expected to do?
be easy for small children to ride
pull or carry a very heavy load
run a long distance without tiring
run very fast in races
The sweet potato is a common crop plant found in most warm areas of the world. The plant rarely flowers and more rarely makes seeds. However, the roots and potato vines spread rapidly, and new plants are easily grown from the roots and vines of old plants. Some scientists would like to grow new types of sweet potatoes that parasites will not attack. Which of these processes is most difficult in developing new types of sweet potatoes?
planting root stocks
cutting vines
removing parasites
selective breeding
A dog breeder sells puppies to owners who like to show dogs in competitions in which the dogs usually perform tricks and obey commands. Many generalized behavioral traits can be passed down over generations of dogs. Which characteristic would a breeder of dogs look for when selecting parent dogs to breed?
aggression
obedience
nervousness
size
Based on the dichotomous key, in what order should this insect be classified
Mantodea
Raphidioptera
Coleoptera
Lepidoptera
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