Cell wall.......... Hope it helps, Have a nice day :)
Lion, Spotted hyena, African wild dog, Leopard, Cheetah, and probably crocodillians. Hope this helped!
Vascular tissue composed of xylem<span> (red) and </span>phloem<span> tissue (green, between the</span>xylem<span> and </span>cortex<span>) surrounds the pith. Collenchyma cells are elongated cells with unevenly-thickened walls . They provide structural support, mainly to the stem and leaves.</span>
<span>prediction made by a researcher regarding a positive or negative change, relationship, or difference between two variables of a population</span>
If the solutions and leaf disks were boiled prior to the photosynthesis I think all the leafs would sink. Photosynthesis would not ensue by the reason the proteins would be converted and not useful.
Alternatively, if the solutions and leaf disks were subjected to very cold temperatures the leaf disk will float faster.