What was limiting the wildebeest population before 1960 ? and is it density depend or density independent factor ?

What is the 77 element on the periodtic table

Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?

The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f