What is the answer to this question?

What are the similarities between photosynthetic and anaerobic organisms?

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above

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?