1. During ecological succession, the first
organisms to enter an ecosystem for
reestablishment are called pioneer
species. Two examples of organisms
that are pioneer species would
be and

a. moss and lichen
b. shrubs and trees
c. small animals and shrubs

poop

Explanation:

Idk

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

the answer is b.) hydrogen bonds between bases.