7. All the members of a species that live in an area make up 1an ecosystem
2a population
3a habitat
4an environment

2 a population

Explanation:

ecosystem is many types of species

population is 1 type of species

habitiat is similar to ecosystem

environemt is also similar to an ecosystem

what's the question ?

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.