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Worksheets7th Grade Reg/ Adv- Final Review
Total questions: 20
Worksheet time: 16mins
How does the speed of light change when it moves from air to water?
It speeds up.
It slows down.
It remains the same.
It stops.
What is the function of the cell membrane?
Controls all cell activity
Creates lipids and hormones
Allows select materials to pass in and out of the cell
Produces food by converting energy from the sun
How does natural selection drive evolution?
It does not; natural selection and evolution are entirely separate processes
Before they can reproduce, individuals must adapt certain traits through natural selection.
Within a generation, natural selection causes populations to eliminate unfavorable traits.
Over time, natural selection causes living populations to evolve environmental adaptations.
What is a convection current?
Air that moves in an upward direction only resulting from temperature differences.
Air that moves in a downward direction only resulting from temperature differences.
A circulating flow of air or water resulting from temperature differences.
A circulating flow of air or water resulting from temperatures that are exactly the same.
Which term describes an organism's ability to maintain a stable internal environment?
Cellular respiration
Extinction
Homeostasis
Locomotion
Which of the following is a characteristic of commensalism?
Both species are harmed.
One species benefits while the other is harmed.
One species benefits while the other is unaffected.
Both species benefit.
What is the primary force that drives the movement of tectonic plates on Earth?
Gravity
Convection currents in the mantle
Wind
Ocean currents
All of the fossils that have been discovered on Earth are called the _.
fossil show
fossil record
coprolite
Explain how the rock cycle is an example of the law of conservation of energy.
Rocks are destroyed and disappear.
Energy is neither created nor destroyed but transformed in processes like melting and erosion.
Rocks are created from nothing.
Energy is lost when rocks are weathered.
Which layer of the Earth is composed primarily of liquid iron and nickel?
Crust
Mantle
Outer core
Inner core
What role do decomposers play in a food web?
They produce energy for the ecosystem.
They break down dead organisms, returning nutrients to the soil.
They are primary consumers.
They are top predators.
Describe the process of energy transformation in a roller coaster.
Energy is created at the top of the hill.
Potential energy is converted to kinetic energy as the coaster descends.
Kinetic energy is destroyed at the bottom of the hill.
Energy remains constant throughout the ride.
Which statement is true about body systems in an organism?
Each system works independently
All systems perform the same life function
All systems work together to maintain homeostasis
Each system uses the same organs
What is a limiting factor?
Factors that always increase a population
Factors that always decrease a population
Resources that are unlimited
Factors/resources that limit how many organisms can live in an area at the same time
