What do intercellular junctions connect?Multiple ChoiceCell membranesOrganellesBlood cellsCell nuclei

Intercellular junctions connect:

1. Understanding the term: "Intercellular" refers to "between cells." Therefore, intercellular junctions are structures that connect cells to one another.

2. Analyzing the options:

   • Cell membranes: These are the outer layers of cells that separate the interior of the cell from the outside environment. Intercellular junctions often involve the cell membranes of adjacent cells.
   • Organelles: These are specialized structures within a cell, such as the nucleus, mitochondria, etc. Intercellular junctions do not connect organelles.
   • Blood cells: These are specific types of cells found in the blood. Intercellular junctions are not specific to blood cells.
   • Cell nuclei: These are the control centers of cells, containing genetic material. Intercellular junctions do not connect cell nuclei.

3. Conclusion: The correct answer is "Cell membranes" because intercellular junctions connect the cell membranes of adjacent cells.

So, the answer is: Cell membranes.