What is constitutive expression, and how does it relate to this experiment?

Which element is used in photosynthesis found in atmosphere and fixed by bacteria?

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?

What is gene flow? apexa: selection for average traits b: when a population splits in twoc: a mutation becoming more commond: genes moving between two populations