1. Critical Thinking Journaling Questions

2. Critical thinking journaling question #1: Illustrate what a plant looks like when it has adequate water and sunlight. Illustrate what a plant looks like when it does not have adequate water and sunlight. Describe what happens to the cells that causes the different appearance in the organism.

3. Critical thinking journaling question #2: Choose two plant systems and describe how they work together to maintain homeostasis.

4. Critical thinking journaling question #3: Choose two animal systems and describe how they work together to maintain homeostasis.

5. Critical Thinking Journaling Question #4 Describe the impact on at least two body systems if the digestive system does not take in nutrients.

6. Critical Thinking Journaling Question #5 Describe the impact on the circulatory system if the respiratory system does not function properly.

7. The diagram shows the internal feedback mechanism that maintains blood-calcium (Ca 2+ ) homeostasis. If a person has a blood-calcium (Ca2+) level of 8 mg/100 mL of blood, which of the following mechanisms does the body use to maintain blood-calcium homeostasis? a.The kidneys take up more Ca 2+ and release vitamin D. b.The bones release Ca 2+ c.The intestines increase reabsorption of Ca 2+ d.All of the above

8. Some students are instructed to put a celery stalk in a red dye solution for a lab activity. First the students carefully cut the bottom of the stalk with a scalpel. Then they put the stalk in the beaker with the solution and place the beaker on a shelf in the lab room. The next day they check the stalk and make observations. The students note that the leaves at the end of the stalk have changed color from green to red. The students cut across the celery stalk and use a hand lens to see that the small tube openings along the edge of the celery stalk are also red. How do the plant systems work together to make this movement of liquid possible? a. The roots absorb water and minerals and move them up to the stem, while the stem moves food produced in the leaves down to the roots in tiny tubes. b. The roots anchor the plant in the soil, and the stem holds the leaves up. c. The roots absorb their own water and minerals, while the stem absorbs its water and minerals through the leaves. d. The roots lose water vapor to the soil, and the stem loses water vapor through the leaves.

9. Copper is a micronutrient that can be found in soil. Copper is important for reproductive growth in plants and plays an indirect role in chlorophyll production. Which statement correctly describes the interaction that occurs between the root and the shoot systems of plants to allow reproduction to occur? a. Copper is produced in the roots when copper-containing compounds are hydrolyzed. b. Copper that is absorbed by the roots is transported to reproductive tissues by the shoot system. c.The shoot system stores copper for later use by the roots and the reproductive structures. d. The shoot system transports copper to the roots after it is taken in through stomata in the leaves.