A. Primary consumers
B. Secondary consumers
C. Herbivores
D. Detrivores

A. Secondary consumers
B. Primary consumers
C. Tertiary consumers
D. Predators

A. Consumers
B. Producers
C. Organisers
D. First level

A. Pyramid
B. Energy flow
C. Productivity
D. Ecological system

A. Pyramids
B. Trophic levels
C. Topographic levels
D. Food web

A. Ecosystem
B. Food chain
C. Biosphere
D. None of them

A. Golgi bodies
B. Endoplasmic reticulum
C. Ribosomes
D. Mitochondria

A. Citric acid
B. Acetyl Co-A
C. Succinyl CO-A
D. Oxaloacetate

A. Hydrogenesis
B. Phosphorylation
C. Oxidation
D. Calvin cycle

A. 36 ATP
B. 32 ATP
C. 34 ATP
D. 38 ATP