an organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients
Shows the amount of energy that moves from one feeding level to another in a food web
All organisms interact with other organisms in their surroundings and with the nonliving portion of their environment. Ecologists refer to this quality as....
Biome that surrounds the north and south poles; treeless land with long summer days and short periods of winter sunlight, beneath the topsoil is a layer of permafrost.
warm, wet ecosystem with millions of species of animals, birds, insects and plants. It is known as the most diverse biome of the world.
a forest biome with many kinds of trees that lose their leaves each autumn after changing colors. It has the richest and most fertile soil.
a type of forest characterized by cone-bearing, needle-leaved trees that can survive in a colder climate (Taiga)
the relation between two different kinds of organisms in which one receives benefits from the other by causing damage to it (usually not fatal damage)
A relationship between two species in which one species benefits and the other is neither helped nor harmed