Schizocoelic development
The coelom is a fluid-filled body cavity, where the internal organs are suspended in. It is the cavity between the wall of the body and the digestive tract.
In the schizocoelic development of the embryo, the coelom, called the schizocoel, develops as a split in the mesoderm. The outer layer of the mesoderm attaches with the ectoderm to form a body's musculature, while the inner layer attaches with the endoderm to form the wall of the digestive tract.
This type of development is commonly found in annelids, arthropods, and mollusks.
The bird species has presumably adapted to the conditions after the forest fire if they're still alive. They might have found a new shelter to live at and foods to eat and make it durable for the time period remaining to keep surviving.
B. A cytoskeleton is not an organell in a eukaryotic cell. We're as Golgi, ER, and Lysosomes are all very important organells in eukaryotic cells.
Honestly this question doesn't make sense but if its a legit question then the answer would be A
