Question

If you were to place the bear into the energy pyramid, the bear would go on level _____ and have ________ amount of energy available to it. A) A; the least B) C; the least C) A; the greatest D) B; an intermediate

Answer 1

Answer:

The correct answer is

The greatest in the first blank

the least in the second blank

Explanation:

Bear being an omnivores feed on the plants and animals. In a food chain, bear is kept at the highest most position as it feeds on secondary consumers. In food pyramid the organism at the highest most position is dependent on secondary consumers for its food. Also in a food pyramid energy transferred to the a trophic level is always 10% of the energy of its previous trophic level

Thus, in this way the energy at different trophic levels would be  

a) Producer (tree)  - energy = 100 Joules

b) Primary consumer – 10 % of energy of plant = 10 % of 100 Joules = 10

c) Secondary consumer = 10 % of energy of primary consumer  = 10 % of 10 Joules = 1 Joules

d) Tertiary consumer (Bear) = 10 % of energy of secondary consumer  = 10 % of 1 Joules = 0.1 Joules

Answer 2

The top, with the least amount of energy available, because the higher up the pyramid you go the less energy is transferred. <span />