Eddie's assignment is to prepare a dichotomous key for several objects. his first task was to arrange the objects. the objects are a lighting bug, a butterfly, a ladybug, and ant, and a canary. while organizing the objects, eddie considered several options and found that the most general categories should be listed first. what should eddie use first to divide the organisms into two groups?

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.

Contrast how pollination is different among gymnosperms and angiosperms.

Describe the function of the endomembrane system? what organelles are involved?