You are surveying biodiversity on a new island chain. You have counted the number of bat species on one island already. The next island is smaller and farther from the mainland than the one you have just surveyed. According to the theory of island biogeography, the total number of its bat species should be than on the current island because the rate of immigration to the new island should be and the rate of extinction should be .

According to island biogeography, the total number of its bat species should be lower than on the current island because the rate of immigration to the new island should be less and the rate of extinction should be low.

Explanation:

The distance between old Island and new island is large so less immigration occurs which maintains the population of bat species.

Rate of immigration refers to the movement of species to other areas and colonize there, whereas rate of extinction refers to the removal of certain specie in a particular area with the passage of time. It depends on the distance between old habitat and new area. If the distance is less, the rate of immigration will be more while if the distance is large, rate of immigration will be lower which stable the population of species.

one would be wind another would be water density

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !