Mintu needs to determine the missing ecosystem in the set. intertidal zone, open ocean, which ecosystems best complete the set?

Twilight zone and Benthic zone

Explanation:

These are ocean zones, which include;

intertidal zone: the area where the ocean meets the land between high and low tidesopen ocean zone: it consists of everything in the ocean outside of coastal areas.Twilight zone: it is also known as the mid-water zone, this zone is cold with dim light, and flashes of light produced by living organisms.Benthic zone: this is the lowest level of the ocean.

Since a female is both xx chromosome and the male passes down the x chromosome, than the offspring would be female since a female is xx.