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