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First multi-cellular plants (algae) appear
Contributed by: Bryan
  • 1. What type of organism were the first multi-cellular plants?
A) Algae
B) Ferns
C) Flowering plants
D) Mosses
  • 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) Respiration
C) Transpiration
D) Fermentation
  • 4. What is the role of algae in the ecosystem?
A) Primary consumers
B) Primary producers
C) Decomposers
D) Top predators
  • 5. What is the scientific name for the group of algae with chlorophyll a and b?
A) Chlorophyta
B) Dinophyta
C) Rhodophyta
D) Phaeophyta
  • 6. What role do algae play in the food chain?
A) Top predators
B) Base of the food chain
C) Herbivores
D) Decomposers
  • 7. 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
  • 8. Which kingdom do algae belong to?
A) Protista
B) Fungi
C) Animalia
D) Plantae
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