Which statement correctly distinguishes monocots from dicots in terms of seed leaves, leaf venation, and root systems?

Which statement correctly distinguishes monocots from dicots in terms of seed leaves, leaf venation, and root systems?

• A. Monocots: two seed leaves, branched venation, taproot; Dicots: one seed leaf, parallel venation, fibrous roots.
• B. Monocots: one seed leaf, parallel venation, fibrous roots; Dicots: two seed leaves, branched venation, taproot system.
• C. Monocots: net venation, taproot; Dicots: parallel venation, fibrous roots.
• D. Monocots: flowers in fours; Dicots: flowers in threes.

Answer: (B)

Monocots and dicots differ in three key features: the number of seed leaves (cotyledons), the pattern of leaf veins, and the typical root system. Monocots have one cotyledon, parallel venation in the leaves, and a fibrous root system. Dicots have two cotyledons, branched (net-like) venation, and a taproot system. The statement that monocots have one seed leaf, parallel venation, and fibrous roots while dicots have two seed leaves, branched venation, and a taproot best matches these patterns. Other options mix up these traits or bring in irrelevant features like flower part numbers.

Monocots and dicots differ in three key features: the number of seed leaves (cotyledons), the pattern of leaf veins, and the typical root system. Monocots have one cotyledon, parallel venation in the leaves, and a fibrous root system. Dicots have two cotyledons, branched (net-like) venation, and a taproot system. The statement that monocots have one seed leaf, parallel venation, and fibrous roots while dicots have two seed leaves, branched venation, and a taproot best matches these patterns. Other options mix up these traits or bring in irrelevant features like flower part numbers.