Herbivores eat plants, algae, and other producers. They are at the second trophic level. In a grassland ecosystem, deer, mice, and even elephants are herbivores. They eat grasses, shrubs, and trees. In a desert ecosystem, a mouse that eats seeds and fruits is a primary consumer.
Physical capital is fixed capital, any kind of real physical asset that is not used up in the production of a product. Usually the value of land is not included in physical capital as it is not a reproducible product of human activity.n economic theory, physical capital is one of the three primary factors of production, also known as inputs in the production function. The others are natural resources (including land), and labor â the stock of competences embodied in the labor force.
Human capital has been studied and tested extensively, but psychological capital is such a new idea that few of us know whether we've got any or not. But if Fred Luthans has anything to say about it, that will all change.hey said that human capital is comprised of the education, experience, skills, and to a degree, the abilities of the people involved in any enterprise. So that all became known as human capital. We all became excited about that because this was the competitive advantage.