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.
Categories: Annuals Â» Petunias. Keywords: types, petunias, grandifloras, multifloras, groundcover. Petunia varieties can be divided into four main categories or types based on flower and growth characteristics. The four types are grandiflora, multiflora, milliflora, and spreading or groundcover. Choose the type that best meets your needs. Grandifloras have large single or double flowers.