D because they are complete systems
<span>The systems affected when someone does not take their seasonal allergy medication are the muscular system, immune system, circulatory system, and the respiratory system. Therefore, all of them are correct. </span>
Answer: choice A
Explanation: photosynthesis uses carbon dioxide to produce oxygen, which cellular respiration uses to make carbon dioxide.
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Answer:
in a container with a lid
Explanation:
the lid would keep it aliveand keep in a refrigator
Cells get nutrients from their environment, but where do those nutrients come from? Virtually all organic material on Earth has been produced by cells that convert energy from the Sun into energy-containing macromolecules. This process, called photosynthesis, is essential to the global carbon cycle and organisms that conduct photosynthesis represent the lowest level in most food chains (Figure 1).