Biology - EC: BIO.A.4.2.1
Biology - EC: BIO.A.4.2.1
Continuum of Activities
The list below represents a continuum of activities: resources categorized by Standard/Eligible Content that teachers may use to move students toward proficiency. Using LEA curriculum and available materials and resources, teachers can customize the activity statements/questions for classroom use.
This continuum of activities offers:
- Instructional activities designed to be integrated into planned lessons
- Questions/activities that grow in complexity
- Opportunities for differentiation for each student’s level of performance
Related Academic Standards / Eligible Content
Activities
- What will most likely happen when an organism cannot maintain homeostasis?
- All organisms react to changes in their external surroundings, which helps them to maintain a constant internal environment. This statement describes ______________.
- Many fresh-water organisms have contractile vacuoles. Explain how this organelle can help the organism maintain homeostasis.
- Give an example of an aquatic organism and one way that it maintains homeostasis.
- When your body has the flu it is not in balance. Explain the interactions in one body system that would account for this imbalance.
- In desert environments, organisms that cannot maintain a constant internal body temperature, such as snakes and lizards, rarely go out during the hot, sunny daylight hours. They stay in the shade, under rocks, or in burrows during the day. Explain how this behavior helps maintain homeostasis in these organisms.
- How do guard cells help to maintain homeostasis in a leaf?
Answer Key/Rubric
- Acceptable answers include, but are not limited to:
- Illness
- Death
- Homeostasis
- Acceptable answers include, but are not limited to:
- The contractile vacuole pumps water out of the cell so the organism does not gain too much water and explode.
- Acceptable answers include, but are not limited to:
- A fish keeps swimming to move water across it’s gills so it can exchange gasses needed to maintain homeostasis.
- Acceptable answers include, but are not limited to:
- Your body temperature rises to try to kill of the infection, this then causes your body to lose water and become dehydrated.
- Acceptable answers include, but are not limited to:
- These organisms maintain a cool body temperature during the day by staying out of the sun and keep a warmer temperature by coming out in the evenings and early mornings.
- Acceptable answers include, but are not limited to:
- Guard cells open when the plant has a lot of water and this allows the plant to exchange gasses. When the amount of water in the plant is low, the guard cells close to minimize the amount of water lost through the stomates.
