Identify the extracellular junction that ensures a synchronized contraction in smooth and cardiac muscle.

Correct Answer: B

Rationale: Gap junctions synchronize contractions by passing ions in cardiac and smooth muscle.

Correct Answer: C

Rationale: The retina is the innermost layer of the eye responsible for detecting light and converting it into neural signals.

Correct Answer: D

Rationale: Ligaments connect bones to other bones, providing joint stability.

Correct Answer: B

Rationale: The pancreas is not a lymphatic organ; it is part of the digestive and endocrine systems.

Correct Answer: B

Rationale: The cornea is the transparent layer of the eye that helps focus light.