Guidepost 2: What are the four goals of the scientific study of human development, and what do developmental scientists study? 1  The study of human development seeks to describe, explain, predict, and modify development.  Ways of studying human development are still evolving, making use of advanced technologies.
Dabbling ducks eat plants, seeds, grasses and other small insects and animals that they find on or under the water. Ducks which have broad beaks, (shovelers) sift their food for insects, snails and seeds from the mud.
What do parakeets eat? A: Parakeets in nature eat a variety of seeds, fresh fruits, nuts, flowers and small insects. When keeping a parakeet in captivity, owners should feed birdseed mixes made especially for parakeets, along with some fresh greens, fruits and vegetables. Bell peppers, broccoli, apple, lettuce and squash are all good choices.