Biology · STRUCTURAL ORGANISATION IN ANIMALS

Which of the following statements regarding the structural organisation of organs in complex animals is correct?

A
An organ like the heart consists of all four primary types of tissues: epithelial, connective, muscular, and neural.
B
The human heart is composed exclusively of muscular and neural tissues, completely lacking connective tissue.
C
Each organ in the body is formed of only a single specific type of tissue performing a unique function.
D
Evolutionary trends in organ systems are apparent only in unicellular forms and absent in vertebrates.

View Answer & Solution

Correct answer · Option A

An organ like the heart consists of all four primary types of tissues: epithelial, connective, muscular, and neural.

In complex multicellular animals, an organ like the heart is composed of all four primary tissue types: epithelial, connective, muscular, and neural.