591. What is the characteristic feature of consumers?
A. Autotroph
B. Heterotroph
C. Parasite
D. Saprophyte

592. Which of the following organisms have Chitin as a major structural component of their cell wall________________?
A. Prokaryotae
B. Protoctista
C. Plantae
D. Fungi

593. All of the following are involved in nitrification except
A. Nitrobacter
B. Nitrosomonas
C. Rhizohium
D. All of these

594. DNA or RNA of viruses is enclosed in _______________ coat?
A. Protein
B. Carbohydrate
C. Lipid
D. DNA

595. In most ecosystems the greatest amount of energy flows through the____________?
A. Secondary consumers
B. Herbivores
C. Carnivores
D. Decomposers

596. Which of the following relationship is NOT an example of symbiosis?
A. Rhizobium and leguminous plants
B. Marchantia sporophyte and gametophyte
C. Algae and fungi in a lichen
D. Mycorrhizal fungi and tree roots

597. Other name for Kingdom monera is_______________?
A. Protoctista
B. Prokaryotae
C. Archae
D. None of these

598. Animals with greatest number of similarities are grouped together in a/an___________?
A. Phylum
B. Family
C. Genus
D. Order

599. Amoeba belongs to which kingdom______________?
A. Prokaryotae
B. Plantae
C. Monera
D. Protista

600. Competition between species will be greatest if they attempt to occupy the same___________?
A. Ecosystem
B. Community
C. Habitat
D. Niche