The two processes that determine the world's current biodiversity are
endemism and climate change
mutation and humidity
extinction and speciation rates
breeding and ecotourism
allopatric and sympatric speciation

a single, small population that exists only in one place on the planet is considered to that area.
pandemic
extinct
foreign
endemic

1. Extinction and speciation rates

2. Endemic

Explanation:

1. Speciation refers to the formation of new species from the existing ones. It occurs when two populations of a species isolate reproductively and accumulate genetic variations over time. The rate of speciation regulates the total number of species present on the earth. The higher the rate of speciation, the higher the biodiversity.

Similarly, the extinction rate of the existing species determine the total number of living species present on the earth, that is, the biodiversity. A higher rate of extinction of species reduces the biodiversity of the region.  

2. When a species is originated in one region and is not found anywhere else on the earth, it is said to be endemic for the region. The process is called endemism. An example of endemic species includes marsupial mammals that are confined to the continent Australia and are not found anywhere else in the world.  

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.