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C 3. What level includes the living things and the non-living things that interact to each
other?
A. Population
B. Community C. Ecosystem D. Biosphere
4. Digestive, Circulatory and Respiratory are included in which level?
A Ceil B. Tissue c. Organ D. Organ Systern
5. Which of the following is NOT considered as organism?
A. Plants B. Water C. Animals
Bus
Answers & Comments
Answer:
3. A. Population
4. Your respiratory system takes in oxygen from the air. It also gets rid of carbon dioxide. Your digestive system absorbs water and nutrients from the food you eat. Your circulatory system carries oxygen, water, and nutrients to cells throughout your body.
5. D. Bus
Explanation:
The living things in an ecosystem are interdependent. This means that living things depend on their interactions with each other and also nonliving things for survival. For example, a tree depends on sunlight for energy and food