Which of the following demonstrates ecological biodiversity?

a. brazil nut trees in the amazon rely on birds, bees, and rodents for their survival and these animals in turn rely on the tree for food and shelter.

b. the platypus is on one of just a few mammals that reproduces by laying an egg.

c. young wolves are known to occasionally leave their home packs to form a new pack with an individual from a different pack.

d. more then 10,000 distinct species of plants and animals have been identified on or around australia's great barrier reef.

The subject option isn't available. the topic is earth science!suppose you are a city engineer whose job it is to explore how to use more renewable energy in your locality. 1. consider the resources in your city and select one of the following: - hydropower -solar power -wind power -geothermal power 2. prepare a pamphlet or multimedia presentation to convince a committee of citizens and local leaders that the renewable energy source you have selected is best for you locality. in your pamphlet or presentation include: - a discussion of the renewable energy source that is best for your town and why -a discussion of the advantages and disadvantages of this energy source -a discussion of why you think your city should use more of this energy source -how the use of renewable energy will impact your city -pictures and/or charts and tables to strengthen your arguments