A healthy ecosystem contains a diverse variety of species that factor into the food web within the ecosystem. It also has varied individuals within each population. Which of the following helps to keep an ecosystem diverse?
o A
increasing population density
B
interactions among communities
с
biotic factors
D
genetic variation

Fredrick griffith made a scientific discovery in 1928

There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. take for example the cells that line the digestive tract. these cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. what mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell

Carbon compound that stores and transmits genetic information is called