Trace animal body-system functions
Trace animal body-system functions using supplied evidence and a solved model.
About 18 minutes, plus any extended practice
Supplied materials
- All measurements and observations below are supplied classroom examples. They are not data from actual learners or a claim about a particular real site.
- Paper, drawing space or a browser document.
- Reference card A: breaks food down and absorbs nutrients. Reference card B: exchanges oxygen and carbon dioxide.
- Assessment case 1: Which scientific label fits the specifically described step or feature? Supplied case: Food nutrients enter the body.
- Assessment case 2: Which scientific label fits the specifically described step or feature? Supplied case: Air gases exchange at lungs.
- Assessment case 3: Which scientific label fits the specifically described step or feature? Supplied case: Blood carries oxygen to tissues.
- Assessment case 4: Which scientific label fits the specifically described step or feature? Supplied case: Brain coordinates a response.
- Assessment case 5: Which scientific label fits the specifically described step or feature? Supplied case: Intestine absorbs food molecules.
- Assessment case 6: Which scientific label fits the specifically described step or feature? Supplied case: Blood distributes materials.
Learn the idea
Body systems interact; each listed function is simplified. This is general anatomy education, not diagnosis. Oxygen and nutrients must reach cells and wastes must be managed.
Digestive means breaks food down and absorbs nutrients. Respiratory means exchanges oxygen and carbon dioxide. Circulatory means transports materials around the body. Nervous means receives and coordinates information.
For digestive, look for the clue “breaks food down and absorbs nutrients.” For respiratory, look for “exchanges oxygen and carbon dioxide.” More than one process can happen in a real situation. Answer about the one described in this question.
- Read or listen to the four science words and what each means. Say how the first two differ.
- Choose two of the short cases. Point to the clue that helps you choose a science word for each one. You may draw or say your answer.
- Answer each practice question. Say which clue helped you, then check the explanation.
- Use the extra task to make two examples that show different science words. Draw or say what makes each one fit.
See the method in action
Worked reference-card problem: a card states “breaks food down and absorbs nutrients”; a second states “exchanges oxygen and carbon dioxide.” The first fits digestive and the second fits respiratory. The reason is the described function or change, not the order of the cards or a favorite name. If their descriptions exchange places, their category labels exchange too. Keep the supplied descriptions attached to the correct case.
Check your reasoning
Your answer is temporary and is not saved to an account. Download your current answer before leaving or reloading. Written work on paper or in another app stays in your own file.
Helpful tips
- Use the feature “breaks food down and absorbs nutrients” to justify digestive; do not sort by the name alone.
- Distinguish respiratory (exchanges oxygen and carbon dioxide) from a different process occurring in the same situation.
See the answer and explanation
digestive
The answer is digestive. In the notes, it means “breaks food down and absorbs nutrients.” Body systems interact; each listed function is simplified. This is general anatomy education, not diagnosis. Oxygen and nutrients must reach cells and wastes must be managed.
Take it further
Create one new case showing digestive and one showing respiratory. Expected: the first explicitly shows “breaks food down and absorbs nutrients”; the second explicitly shows “exchanges oxygen and carbon dioxide.” Explain the distinction by drawing, speaking or writing. A label without a matching feature is incomplete.
Nothing here is saved to an account or sent to a teacher. The answer download includes your current choice and any checked feedback. It does not include choices from the separate More practice section. Download that section separately.
More practice: try new cases
Choose an answer for each problem. Explain your method on paper, then use the feedback to decide what to revisit.
Your choices are temporary. Feedback appears after you check all the answers.
Nothing here is saved to an account or sent to a teacher. Keep your own notes or download them before leaving. The score describes these questions; it does not certify subject mastery.
Check the subject sources
These LifeStarter passages, scenarios and exercises are authored for this Academy with AI assistance and review. External resources keep their publishers’ terms. A grade label suggests a starting level; it does not establish alignment with your school’s complete requirements.