First the ..... roots and thereafter the ..... roots were evolved in the plant evolutionary process

ROOT SYSTEM

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

First the ____ roots and thereafter the ____ roots were evolved in the plant evolutionary process

A	fibrous, tap
B	tap, fibrous
C	Either A or B
D	None of the above

Explanation:

Detailed explanation-1: -Some of the earliest evidence of roots comes from 419-to 408-million-year-old clubmosses (e.g. Drepanophycus spinaeformis) and their close relatives in the extinct zosterophylls (e.g. Bathurstia denticulate; Gensel et al., 2001).

Detailed explanation-2: -Plants evolved a number of adaptations that helped them cope with these problems on dry land. One of the earliest and most important was the evolution of vascular tissues. Vascular tissues form a plant’s “plumbing system.” They carry water and minerals from soil to leaves for photosynthesis.

Detailed explanation-3: -Roots were an early development in plant life, evolving on land during the Devonian Period, 416 to 360 million years ago (Gensel et al., 2001; Raven and Edwards, 2001; Boyce, 2005; Kenrick, 2013).

There is 1 question to complete.

DENDROLOGY

TREE MORPHOLOGY AND ANATOMY

ROOT SYSTEM