Which best defines a pioneer species? O a species that enters an area and makes its own food

O a species that enters a community that is stable and balanced

O the first species to populate an uninhabited area

O the first species that eats other organisms in an area (I know it's not)

the answer is b.) hydrogen bonds between bases.

answer;

-chlorine

explanation;

-toxic industrial chemicals are industrial chemicals that are manufactured, stored, transported, and used throughout the world. toxic industrial chemicals can be in the gas, liquid, or solid state.

-they can be chemical hazards (e.g., carcinogens, reproductive hazards, corrosives, or agents that affect the lungs or blood) or physical hazards (e.g., flammable, combustible, explosive, or reactive).

the answer is true ; ) have a good day