1) closed circulation
2) The spleen can easily be damaged if someone suffers a sever injury to the stomach. When the spleen is damaged, it can cause pain in the abdomen, dizziness, and pain in the left shoulder.
Answer:
People breathe oxygen in and carbon dioxide out, but for a plant to make carbohydrates, the leaves take in carbon dioxide through the stomata on the leaf surfaces. From the stomata, the mesophyll cells use the carbon dioxide to combine it with water and light for photosynthesis.
Answer: Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level. Trophic level transfer efficiency (TLTE) measures the amount of energy that is transferred between trophic levels. or in materials that the consumer does not digest, or through movement
Hope it helps! ^w^
Reptile answer option no 1
~Hello there! ^_^
Your question: How often is CO2 cycled through the atmosphere?
Your answer: CO2 is cycled through the atmosphere in 350 years.
Hope this helps~