WorksheetsScience USA 1 Review
Total questions: 13
Worksheet time: 7mins
Linda hypothesizes that planting lavender flowers around cucumber plants will reduce the number of insects that feed on the cucumbers. Which observation would most strongly support Linda's hypothesis?
A count of 15 insects before lavender is planted and 8 insects after lavender is planted.
A count of 15 insects before lavender is planted and 15 insects after lavender is planted.
A count of 12 cucumber plants before lavender is planted and 6 cucumber plants after lavender is planted.
A count of 12 cucumber plants before lavender is planted and 18 cucumber plants after lavender is planted.
Maria and Carlos conducted a study together. They captured moths that were drawn to either white light or yellow light and documented the data. Their findings are displayed in the graph below. Which of the following conclusions is accurate based on the graph?
The number of moths caught per day using yellow light decreased after the fifth day.
Only white moths are drawn to white light.
Captured moths are more attracted to yellow light.
The number of moths caught per day using white light decreased consistently each day.
Scientists are investigating how the length of daily sunlight impacts the growth of plants. Four plants of the same species and at the same growth stage were used in the experiment. They were planted in identical soil conditions and watered equally at the same time each day. Based on the data, what conclusion can be drawn from this experiment?
Plants grow better with less sunlight.
Plants exposed to more sunlight hours grow more.
Plants can grow without sunlight.
Plants exposed to more than seven hours of sunlight will not grow.
Polar foxes change their fur color with the seasons, growing brown fur in summer and white fur in winter. What survival trait does this demonstrate?
adaptation
hibernation
metamorphosis
migration
In a certain habitat, butterflies can be either blue or yellow. Due to environmental changes, blue butterflies have become more visible to predators. What is the most likely outcome for this butterfly population?
The number of yellow butterflies will increase.
The blue butterflies will start reproducing more quickly.
The blue butterflies will change their color to yellow.
Both blue and yellow butterflies will become extinct.
As global temperatures rise, a particular mosquito species begins to breed earlier and for longer periods each year. Which phrase best describes this change in the mosquito's life cycle?
a species gaining a competitive advantage over predators
a species losing habitat
a species adapting to changes in an environment
a species overpopulating
In a certain region, speckled moths exist in two color variations: light and dark. Historically, the light-colored moths were more prevalent due to their ability to blend in with the lighter trees, avoiding predators. However, industrialization led to soot-covered trees, darkening their surfaces. What adaptation did the speckled moths most likely undergo in response to this environmental change?
more dark-colored moths survived
more larger-sized moths survived
more smaller-sized moths survived
more light-colored moths survived
Why do many plants in tropical rainforests have very large leaves?
by collecting sunlight for making food
by attracting insects for pollination
by hiding the stems from predators
by shading the stems and roots from heat
Scientists studied a population of wild rabbits in a restricted area. Some rabbits had dark fur, while others had light fur. Which of the following best explains the trend shown in the graph?
A change in the environment made one fur color more noticeable to predators than the other.
A change in the environment destroyed most of the vegetation the rabbits feed on.
A change in the environment led to the introduction of a non-native species.
A change in the environment decreased the water supply available to the rabbits.
Chameleons are reptiles known for their ability to change skin color. Which of the following is NOT a benefit of this ability?
to improve climbing skills
to assist in hunting prey
to attract a partner
to avoid predators
The dual respiratory system of the river snail, which includes both gills and a lung, provides certain advantages. How might this feature benefit river snails compared to other snails that lack it?
The river snail could extend its habitat to access more food.
The river snail could move more swiftly.
The river snail could produce eggs with thicker shells.
The river snail could have greater disease resistance.
Which characteristic of the golden eagle is most advantageous for its survival in its natural environment?
Its strong toes and sharp talons help it to catch fish in water.
Its keen eyesight helps it to spot prey from high above.
Its sharp curved beak helps it to dig for insects underground.
Its white and brown feathers help it to blend in with its surroundings.
Sea cows are mammals that live in warm, shallow waters. They are at risk of illness and death when temperatures drop. Which behavior is essential for a sea cow's survival in changing water temperatures?
Swimming to deeper waters
Breathing at a slower rate
Migrating to natural springs of warm water
Feeding more to increase body fat
