Which of the bonding types below would be used between a positive sodium ion and negative bromide ion? 1)hydrogen bonding
2)covalent bonding
3)ionic bonding

3) Ionic bonding.

Explanation:

Sodium is in Group 1 and has a +1 charge. Bromine is in Group 17 and has a -1 charge. Therefore this is ionic bonding.

•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 principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.