Question

Which of the following characteristics is/are true about arthropods?

• A. Unisexual with sexual dimorphism.
• B. Metamorphosis in their life cycle.
• C. Fertilization is usually internal but in some it may be external.
• D. All of the above.

Answer 1

The correct option is D All of the above.

The phylum Arthropoda includes animals with an exoskeleton.

They are mostly unisexual and exhibit sexual dimorphism but some are hermaphrodites.

Arthropods belonging to the class Insecta show metamorphosis in their life cycle. In terrestrial arthropods, fertilization is internal but aquatic arthropods show internal as well as external fertilization

So, the correct answer is option D.