I think it is d because the other places are of course wet lands.
I think the answer is the moon in its orbit around the Earth
An example of an alternate path in the rock cycle could be sedimentary rock goes through melting and becomes magma.
Answer:
<em>The correct option is d) an ecotone</em>
Explanation:
An ecotone can be described as an area of transition between two different biomes. An estuary can be described as an ecotone where the river water meets the seawater. The freshwater biome mixes with the seawater biome in an estuary. Unique plants and animals are grown in an estuary which are adapted to live in such an environment. The water present in an estuary is termed as brackish water. Hence, the correct option is d.
The nucleolus is the central support structure
