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