الطلب
“A dichotomous key to identify four backyard birds: American kestrel, American robin, black-capped chickadee, and house sparrow, using hooked beak, red breast, and black cap as paired choices.”
جرّب إذنAdd a blue jay as another outcomeChange the last question to ask about a streaked breast
ما الذي يتضمنه هذا الرسم
اقرأ القرارات الكامنة وراءه.
01Observable traits
Use features visible without handling the bird.
02Two choices
Make every question divide the remaining options.
03Terminal names
End each path with one species.
Use for a simple identification activity with a small, local species set.
الأسئلة الشائعة
أسئلة شائعة
What makes this key dichotomous?
Each step offers two alternative paths.
Should traits be observable?
Yes. Use clear traits that a user can check in the field.
Can I add more species?
Yes. Add another paired question where it separates cleanly.