How long does it take for a new species to arise? have we ever witnessed a new species arising - like in any laboratories or otherwise - possibly with creatures with short life spans? does it happen all the time, or is it incredibly rare?

Which is an example of a decomposer? a. bear b. algae c. grass d. bacteria d bacteria

Which of the following forest management practices is best for reestablishing areas of forest?

Abiology teacher asks students to give examples of genetic variations that support the idea that changes in a population’s environment affect genetic variation. which is the least supportive example? a. changes in genetics in human populationsb. antibiotic resistance in bacteria populationsc. pesticide resistance in garden insectsd. changes in the color of the peppered moth population in england