Next step
Why does BFS find the shortest path?
Work through one example, then test the invariant with a three-question recall set.
Tutor note
“BFS explores by distance: every node in a layer is visited before the next layer begins.”
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Visual lesson · Biology
Photosynthesis
Follow the transfer of energy and the rearrangement of matter.
- 1
Capture light
Chlorophyll in the leaf absorbs light energy from the Sun.
Notice: The energy source enters here.
Step 1 of 3
Check your understanding
Where do the carbon atoms in glucose come from?
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- 01
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- 02
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- 03
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Frequently asked questions
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