They divide the amount of people by square miles
Under the leaf, but a microscope must be used.
Hope this helps!
Mutations in animals so they produce more food
One method is taking vitamins. Another method is eating healthier.
selective breeding has changed organisms over time by paring that organism up with another organism of its kind with desirable traits. take dogs for example, through selective breeding we now have many different types of dogs with different abilities. i hope this helps
