Answer:
A
Explanation:
bc it says it................
Alveoli are part of the reparation system found in the lungs. They are covered in capillaries. In Alveoli, oxygen diffuses from the air into the blood vessels surrounding the alveoli and carbon dioxide from the body diffuses from blood into the alveoli’s air spaces. Alveoli clump together and form sacs.
Answer:
Cactus spines
Explanation:
The cactus spines keep predators away and prevent different organisms from eating it. This helps it to survive in the desert. Another adaptation is very thick, waxy cuticle help to reduce water loss by evaporation.
Answer:
The growth of the plants is the dependent variable, the stuff added to each plant is the independent variable, the plants that don't receive treatment/other stuff are control variables.
Answer:
Potential energy is when it's going up and kinetic energy when it's going down but in this picture it's talking about potential energy turning into potential and kinetic energy to potential.
Explanation:
Hope this help
