What part of the milky way allows for determination of its rotational direction? a. galactic body b. two long tails c. celestial body d. galactic disk

The answer is B. Two long tails

Explanation:

"Two long tails extend from the edge of the spiral pattern [of the Milky Way] and trail out beyond the galaxy, giving an indication of the Milky Way's direction of rotation."

This is a sentence taken out of my studying book.

segmentation=endoskeleton=backbone=coelom=tissues

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.