Question

There are three sets of animals A, C and C. What type of symmetry is shown by each?

• A. A - Bilateral symmetry, B - Radial symmetry, C - No symmetry
• B. A - Radial symmetry, B - Bilateral symmetry, C - No symmetry
• C. A - Bilateral symmetry, B - No symmetry, C - Radial symmetry
• D. A - No symmetry, B - Radial symmetry, C - Bilateral symmetry

Answer 1

The correct option is A A - Bilateral symmetry, B - Radial symmetry, C - No symmetry

• Animals that are bilaterally symmetric have mirror symmetry in the sagittal plane. It divides the body vertically into left and right halves, with one of each sense organ and limb pair on either side (as shown by animal A).
• In radial symmetry, an organism can be divided into similar halves by any plane along the central axis (as shown by animal B).
• Some organs show no symmetry. For example, the left brain is structured differently to the right, the heart is positioned towards the left (as shown by animal C).

So, the correct answer is option A.