The marine biologist job outlook includes some growth, but with strong competition for jobs. If you are passionate and dedicated, you can make this a lifelong career. Marine biologists study ocean life, conducting research on aquatic plants and animals.
3. Leaf Arrangement (Phyllotaxy) Three different leaf arrangements: Alternate (one leaf per node), opposite (two leaves per node) and whorled (three or more leaves per node). A node is the place where one or more leaves are attached along the stem. The area between the nodes is called the internode.
Often the shape of a leaf is advantageous in its environment, possibly because it doesnât break off in strong winds or because it can limit water loss. There are lots of kinds of leaf shapes, but one distinction is the simple vs. compound leaf. A simple leaf is, as its name suggests, pretty simple.