Answer:
I think so the answer is d
Answer:
Population
Explanation:
All the members of one species in a particular area are referred to as a population.
Answer:
There are techniques to test that if an individual is practicing proper aseptic techniques to ensuring the growth of the pure bacterial colonies. The one of the experimental way to test is as follows:
Leave a Petri plate poured with media at lab, leave it for some time in open. Then incubation of the petri plate for 24 hours.
If bacteria colonies found on the plate, then the aseptic techniques that is following are not proper.
contour farming:
Contour farming has been practiced for centuries in parts of the world where irrigation farming is important. Although in the United States the technique was first practiced at the turn of the 19th century, straight-line planting in rows parallel to field boundaries and regardless of slopes long remained the prevalent method. Efforts by the U.S. Soil Conservation Service to promote contouring in the 1930s as an essential part of erosion control eventually led to its widespread adoption.