Question

Which of the following characteristics is mainly responsible for the diversification of insects on land?

• A. Eyes
• B. Exoskeleton
• C. Bilateral symmetry
• D. Segmentation

Answer 1

The correct option is B

Exoskeleton

The correct option is B

Explanation for the correct answer:

1. Exoskeleton characteristics are mainly responsible for the diversification of insects on land.
2. The most important adaptation is the exoskeleton.
3. Insect exoskeleton is made up of chitinous which helps to prevent their skin from drying.
4. Ancient insects used to be aquatic organisms.
5. Some of them evolved and adapted to live on the land and result in the diversification of insects on land.
6. Chitin helps to maintain the moisture of insects' skin.
7. Some theory says that insects evolved from crustaceans.

Explanation for the incorrect answer:

Option A:

1. An inspection of any insect's eyes reveals that they are not the same as those seen in mammals.
2. Instead, most adult insects have compound eyes, which allow them to see movement quite well.

Option C:

Bilaterally symmetric organisms have a single symmetry plane, the sagittal plane, that divides the creature into two roughly mirror-image left and right halves that approach reflectional symmetry.

Option D:

The split of some animal and plant body plans into a succession of repeated segments is known as segmentation in biology.

Final Answer:

Exoskeleton is mainly responsible for the diversification of insects on land.