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First multi-cellular plants (algae) appear
  • 1. What type of organism were the first multi-cellular plants?
A) Mosses
B) Algae
C) Ferns
D) Flowering plants
  • 2. What is the main pigment in algae that helps in photosynthesis?
A) Phycocyanin
B) Xanthophylls
C) Chlorophyll
D) Carotenoids
  • 3. What process is essential for algae to obtain energy from sunlight?
A) Respiration
B) Transpiration
C) Fermentation
D) Photosynthesis
  • 4. What is the scientific name for the group of algae with chlorophyll a and b?
A) Rhodophyta
B) Phaeophyta
C) Dinophyta
D) Chlorophyta
  • 5. What evolutionary advantage did the formation of multicellular plants provide?
A) Better camouflage from predators
B) Reduced competition for resources
C) Increased surface area for nutrient absorption
D) Enhanced mobility
  • 6. Which kingdom do algae belong to?
A) Animalia
B) Protista
C) Plantae
D) Fungi
  • 7. What is the role of algae in the ecosystem?
A) Primary consumers
B) Primary producers
C) Top predators
D) Decomposers
  • 8. What role do algae play in the food chain?
A) Herbivores
B) Top predators
C) Decomposers
D) Base of the food chain
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