explain why a mouse (an endotherm) would probably have wider bone rings than a similarly sized lizard (an ectotherm).

Compare and contrast nutrient limitation in soil vs. nutrient limitation in aquatic ecosystems

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Fredrick griffith made a scientific discovery in 1928