Here's an example of what's due today

Run the investigation

Tue, Apr 20, 2027 · Week 14 · Human Anatomy & Physiology (Human Body Systems)

Today's goal: Students will conduct the C. elegans heavy-metal investigation and collect data on worm response.

Learn first

What a finished product looks like

This is a model of the work you should turn in today. Use it to check your own: match the structure and the level of detail, do not copy it. Your data and wording should be your own.

Heavy-metal exposure data table

Completes: Completes the data-collection target: a recorded data table covering every treatment concentration and the control, in consistent units, with notes on unexpected observations.

I recorded the number of worms still moving (out of 10) at each time point for every condition, then averaged my three runs. Keeping the same units and time points across all conditions, including the control, lets me compare them fairly.

Unexpected observation note:

In the 50 ppm plate, two worms stopped moving at 15 minutes but were moving again at 30 minutes. I recorded this rather than ignoring it, because recovery could mean the dose was sublethal or the worms were temporarily stunned.

Copper (ppm)	Moving at 0 min	Moving at 15 min	Moving at 30 min
0 (control)	10	10	10
10	10	9	9
50	10	7	6
100	10	4	2

Also due today: Submit your data table to the Schoology assignment for HBS Challenge Day 3 (Lab).

Check yourself

WebXam problem for today's skill

One exam-style question that uses exactly what you practiced today. Try it before you reveal the answer, then read why each choice is right or wrong.

WebXam-style domain: Evaluate Body SystemsSelf-check skill: Recognizing why a control condition is documented like every treatment

In the C. elegans heavy-metal investigation, why must the 0 ppm control plate be observed and recorded at the same time points and with the same care as the treatment plates?

Tap an answer to see the full explanation. Nothing is recorded or graded.

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