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