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.
Opposite. A plant with pairs of leaves attached at each node opposite to each other has an opposite leaf arrangement. This leaf arrangement has two types, decussate and distichous. If the pairs of leaves are rotated 90 degrees as they advance up the stem, the opposite leaf arrangement is considered descussate.