A flower color is red, aa flower color is blue
<span>Most animal cells also exhibit anchorage dependence. To divide, they must be attached to a substratum, such as the inside of a culture jar or the extracellular matrix of a tissue. Experiments suggest that like cell density, anchorage is signaled to the cell cycle control system via pathways involving plasma membrane proteins and elements of cytoskeleton linked to them.</span>
If the ecosystem is the forest
-trees: sunlight, water
-squirrels: shelter, food, water
-birds: shelter, food, water