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