A.
Animal cells are very close to plant cells, but they have one key difference that separates them; the cell wall.
A cell wall is a thicker layer on the outside of the cell membrane. These are unique, and are <u>only found in plant cells.</u> Animal cells just have the cell membrane as their outer part. This enables them to change shape due to the membrane being very flexible.
Plant cells do not change, and only conform to their cell wall's shape. This enables them to grow up (literally) to help gather sunlight and enable photosynthesis.
Answer AND Explanation:
In the process of succession, the species in an area will gradually change. Each species is adapted to survive and competes with other species under specific sets of environmental conditions. If these conditions change, then the existing species will be replaced by a new set of species which are better adapted to the new conditions that have evolved.
This process helps an ecological community to undergo a predictable change following the initial colonisation of a new habitat. The succession that occurs in new habitat uninfluenced by pre existing succession is called primary succession, where as succession that follows disruption of a pre existing community is called secondary succession.
