Some plant species release chemicals into the soil that end up killing nearby plants. this is an example of what?

competition
cooperation
mutualism
working together

Ecology can best be described as the study of what

Select the correct answer from each drop-down menu. the lac operon in e.coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .

Select the correct answer.what is the observable characteristic of a person called? o a. genotypephenotypeoc.alleleo d.gene