Ans. (D). community.
In an ecosystem, a community can be defined as a association or group of organisms of two or more species that occupy the same region, in a particular time. For example, grasses, herbivores (such as deer), and carnivores (such as lion represent a community in a grassland ecosystem that affect each other.
As earthworms and robins belong to two different species, they will represent a community in a beech forest ecosystem.
Thus, the correct answer is option (D).
Supergiant stars can have masses from 10 to 70 times greater than our Sun. When it comes to brightness, some of them can be from 30,000 times or brighter than our Sun. The temperature range of a supergiant spans from around 3,450 K to 20,000 K. The absolute visual magnitudes between -3 and -8.
All living things need to have cells before they are said to be living. this is because the cell is the basic unit of life.
I’m pretty sure its gneiss but I might be wrong. Let me know and have a good rest of your day!