Forest elephants in africa have been confirmed as a different species from the the larger savanna elephant seen here. although both animals are elephants, they have distinct differences in their and thus are classified as different species. a) dna b) foods c) niches d) sizes

Option A

Explanation:

Species defines a gene pool i.e the maximum number of gene sets or variations with any species that can exist under natural conditions.

It basically means that two species belonging to same species group have the potential to interbreed and produce offspring that are capable of reproducing further.

Here, the two elephants groups  in Africa belongs to different species therefore they must be having different gene pool.

Hence, option A is correct

the bald eagle got 50 because everything gets 10% of what they consume and since 50 is ten % of 500 hundred that means the   grasshopper had to have consumed a plant with 5,000 calories of energy

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 !