What role do bacteria play in soil ecosystems? They add air to soil.

They break down rocks.

They return nutrients to soil.

They tunnel through soil.

Arrange the following in the correct sequence, from earliest to most recent, in which these plant traits originated. 1. sporophyte dominance, gametophyte independence 2. sporophyte dominance, gametophyte dependence 3. gametophyte dominance, sporophyte dependence a) 1 → 2 → 3 b) 2 → 3 → 1 c) 2 → 1 → 3 d) 3 → 2 → 1 e) 3 → 1 → 2

Which is an example of a decomposer? a. bear b.algae c.grass d.bacteria d bacteria

What best describes the structure of the declaration of independence?