---

Question 1:

What type of ecological pyramid shows the number of individuals at each trophic level?

A) Pyramid of numbers
B) Pyramid of biomass
C) Pyramid of energy
D) None of the above

Show Answer

Explanation: The correct answer is A) Pyramid of numbers. The pyramid of numbers represents the number of individuals at each trophic level in an ecosystem. It shows the relative abundance or scarcity of organisms at different trophic levels.

---

Question 2:

What type of ecological pyramid represents the total dry weight of all organisms at each trophic level?

A) Pyramid of numbers
B) Pyramid of biomass
C) Pyramid of energy
D) None of the above

Show Answer

Explanation: The correct answer is B) Pyramid of biomass. The pyramid of biomass represents the total dry weight of all organisms at each trophic level. It indicates the amount of energy or biomass stored in organisms at each level and gives insights into the flow of energy through the food chain.

---

Question 3:

What type of ecological pyramid represents the flow of energy through different trophic levels?

A) Pyramid of numbers
B) Pyramid of biomass
C) Pyramid of energy
D) None of the above

Show Answer

Explanation: The correct answer is C) Pyramid of energy. The pyramid of energy represents the flow of energy through different trophic levels in an ecosystem. It illustrates the decrease in energy as it is transferred from one trophic level to the next, with higher trophic levels having less energy available.

---

Question 4:

In an ecological pyramid of numbers, which trophic level typically has the highest number of individuals?

A) Producers
B) Primary consumers
C) Secondary consumers
D) Tertiary consumers

Show Answer

Explanation: The correct answer is A) Producers. In an ecological pyramid of numbers, the trophic level of producers (such as plants or algae) typically has the highest number of individuals. This is because the energy available at the producer level can support a larger number of individuals compared to higher trophic levels.

---

Question 5:

Which direction does the energy flow in an ecological pyramid?

A) From higher trophic levels to lower trophic levels
B) From lower trophic levels to higher trophic levels
C) In both directions simultaneously
D) It does not flow

Show Answer

Explanation: The correct answer is A) From higher trophic levels to lower trophic levels. Energy flows through an ecological pyramid in a unidirectional manner, from lower trophic levels (producers) to higher trophic levels (consumers). The energy is transferred as organisms are consumed by predators or decomposed, and a portion of the energy is lost as heat at each trophic level.