A food chain shows the following sequence: eagles eat wolves; wolves eat rabbits; rabbits eat grass; grass is fueled by sunlight. This food chain is probably .a. True and complete, showing all the known feeding relationships in the ecosystem. b. Simplistic and incomplete, showing only a few of many possible links among these and many other species in the ecosystem.

Which organism is the producer in this food web? 7th grade question. a) arthropods b) birds c) fungi d) plants

What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent