The food sources available for a particular species in an ecosystem. Also space where they can live and reproduce, but food is the main factor.
The process of importing free dna from the environment is called _transformation_.
The type of dna uptake that is dependent on viruses is called _transduction_.
The type of dna uptake that is dependent on transferable plasmids is called _cconjugation_.
Answer is a. neolithic where they use wild and domesticated crops and domesticated animals
Answer:NH2 side group and COOH side group.
Explanation: