Answer:
Rocks or lava
Explanation:
In 1° succession there is no soil.. And the process of soil formation take very long time.
In 1° succession rocks or lava is present and lichens, soil erosion, wheathring of rocks helps in soil formation.
Answer: Epithelial Tissue Learn with flashcards, games, and more — for free. ... The apical surface may have either microvilli or cilia. ... Epithelial tissues protect both external and internal surfaces from dehydration, abrasion, and destruction by ... pseudostratified (sū′dō-strat′i-fīd; pseudo = false, stratum = layer) epithelium.
Explanation: I hope this helps UwU
