They are cold blooded
They respire both by Skin and lungs.
They lay eggs in water ; they have a 3 chambered heart.
Answer:
Calcium is taken up by roots from the soil solution and delivered to the shoot via the xylem. It may traverse the root either through the cytoplasm of cells linked by plasmodesmata (the symplast) or through the spaces between cells (the apoplast).
The carbon that plants need for photosynthesis comes from (carbon dioxide gas in the atmosphere)
All chemical reactions involve energy. Energy is used to break bonds in reactants, and energy is released when new bonds form in products. (sorry if that’s not helpful.)
We could explain the consequences of not recycling, composting, and conserving in different campains. We could also make it a requirement to learn in science class so children become aware of it and change it for the better later on.
