The Producer Price Index (PPI) program measures the average change over time in the selling prices received by domestic producers for their output. The prices included in the PPI are from the first commercial transaction for many products and some services.
Amphipods can thrive in marine settings and on moist land. Other species are found in home gardens and beneath flowerpots. Some amphipods are herbivores, while others are carnivores. Sand-, mud-and moist-soil-dwelling amphipods feed on bacteria.Other species are scavengers that feed on dead plants and animals.ehavior, Diet & Habits. All amphipod species prefer moist habitats. Amphipods that live in water are primarily white, although some may also exhibit light brown, green, dark brown or black coloration. Most amphipods become red in color when they die.
Many people think that herbivores must eat the same food every day, but herbivores actually eat a variety of plant foods. It depends on the kind of herbivore. Grazers are herbivores who eat grass and other small plants that are found on or near the ground. An example of a grazer is a squirrel. Browsers are herbivores who eat leaves off of plants, shoots and twigs. Browsers eat primarily food that is higher up in the air. Some of the largest herbivores are both grazers and browsers including elephants, moose and rhinos.