Which is a characteristic that organisms in domain Eukarya share?(1 point)

Responses

They have cell structures without membranes.
They have cell structures without membranes.

They are multicellular.
They are multicellular.

They lack cell structures and membranes.
They lack cell structures and membranes.

They are unicellular.

1 answer

A characteristic that organisms in domain Eukarya share is that they have cell structures with membranes. Specifically, eukaryotic cells have membrane-bound organelles, such as a nucleus, mitochondria, and endoplasmic reticulum.

From your provided options, while none directly states this, the closest inference is to reject the other answers as they contain inaccuracies regarding cellular structures:

  1. They have cell structures without membranes. (Incorrect)
  2. They are multicellular. (Incorrect, as some eukaryotes are unicellular, such as yeast and protists)
  3. They lack cell structures and membranes. (Incorrect)
  4. They are unicellular. (Incorrect, as eukaryotes can be unicellular or multicellular)

None of the given options correctly describes Eukarya; however, the defining characteristic could be described as having membrane-bound organelles or structures.