Which of the following is false?

1. mitochondria have more than one membrane.
2. mitochondria possess their own dna.
3. the folds of the inner mitochondrial membrane are called cristae.
4. mitochondria are involved in energy metabolism.
5. mitochondria contain ribosomes in the intermembrane space.

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?