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7. ____ is a chemical compound that forms tangled fibers in the cell walls of plants.
A. stomata
B. cambium
C. cellulose
D. cuticle

9. The most common types of plants on earth is ___.
A. angiosperms
B. gymnosperms
C. nonvascular plants
D. seedless vascular plants

Respuesta :

Edufirst
1. option C. cellulose

2. option A. angiosperms (I found in Internet that they represent 80% of the green plants)

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