Staar Review

Which two types of organisms in this aquatic food web have a producer–consumer relationship?

• Microscopic algae and white suckers
• Small invertebrates and amphipods
• Phytoplankton and mummichogs
• Amphipods and channel catfish

Which of these elements is in this group?

• Lithium
• Strontium
• Aluminum
• Silicon

At which location is the gravitational potential energy of the water the greatest?

• Location W 
• Location X 
• Location Y 
• Location Z 

Which of these formulas contain equal numbers of nitrogen atoms?

• Formulas I and III
• Formulas I and IV
• Formulas II and III
• Formulas I, II, and V

Based on the dichotomous key, in what order should this insect be classified?

• Mantodea
• Raphidioptera
• Coleoptera
• Lepidoptera

Investigators using a special telescope determined that a certain quasar was emitting waves with a frequency of 1 4. 1 × 109 Hz. 
The investigators were most likely using a telescope that detects —

• microwaves
• visible light
• x-rays
• gamma rays

A basketball with a mass of 0.60 kg is accelerated with a force of 10.8 N. If resisting forces are ignored, what is the acceleration of the basketball to the nearest m/s²?

• 16 m/s²
• 17 m/s²
• 18 m/s²
• 19 m/s²

Aluminum, sulfur, and chlorine are elements found on the periodic table. Tests involving these three elements would show that at normal room temperature —

• sulfur is malleable and aluminum conducts electricity
• chlorine is malleable and conducts electricity
• aluminum is malleable and conducts electricity
• all three elements are malleable and conduct electricity

How many atoms are represented in the reactants of this equation?

• 6
• 12
• 24
• 36

A student stands at the point marked X on the topographic map below.
What height in meters must the student climb in order to reach the top of the hill?

• 245 m
• 253 m
• 236 m
• 260 m