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Biology STAAR 2021 Released Practice
Quiz by Sherri Powell
Track each student's skills and progress in your Mastery dashboards
​The defenses of two flightless birds that live in different habitats are shown. How do the wings of the Gentoo penguin and the legs of the common ostrich provide an advantage in their habitat?
Allows them to control their body temperature
 Allows them to be camouflaged in their environments
 Allows them to escape from predators
Allows them to find prey
When the skin comes in contact with an irritant, receptors in the skin send signals to the spinal cord. The signal is then sent to the brain for processing, and the individual begins to scratchthe affected area.
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Which two systems are most likely interacting when a person experiences itching caused by a skin irritant?
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The defenses of two flightless birds that live in different habitats are shown. How do the wings of the Gentoo penguin and the legs of the common ostrich provide an advantage in their habitat?
Which property is shared by the cells of all living things?
Which statement best explains how the cell cycle is important to the life cycle of the frog?
Which statement describes the process of osmosis in an animal cell?
Which body systems interact most directly in the three listed processes?
Based on this food web, which organism occupies multiple trophic levels?
