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.
Fortunately, once theyre organized into groups based on leaf shape; awl-like, (left), needle-like - including flat, square and bundled needles, (center), and scale-like, (right), identifying the most common evergreen trees and shrubs in landscape plantings gets a little easier with practice.