Summarize the origin and of land plants.

During binary fission, what events must occur before the cell splits into two new cells?

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?

The law of thermodynamics states that energy can't be created or destroyed. to natural sources of energy on earth are the